PERSONAL CARE COMPOSITIONS AND METHODS FOR MANUFACTURING THE SAME

专利摘要:
Summary "Personal Care Compositions and Methods for Making Them" The present invention relates to a personal care composition and methods for using it, wherein the composition includes an anionic surfactant, cationic conditioning polymer and emulsion. wherein a total content of a cyclic polysiloxane having a general formula: 10 is present in the silicone emulsion in an amount of less than 2.5% by weight based on the total weight of all polysiloxanes, r is a c1 to c10 substituted or unsubstituted alkyl or aryl, wherein m is 4 or 5, wherein the composition forms coacervate particles upon dilution in water, and wherein a percentage of coacervate particles having a larger small flake size that about 20 microns is about 1% to about 60% upon dilution in water. 20
公开号:BR112014007507B1
申请号:R112014007507-7
申请日:2012-10-05
公开日:2018-06-19
发明作者:Anthony Staudigel James；Scott Johnson Eric；Michael Renock Sean；Mossman Peffly Marjorie；Rose Kroger Lyons Kelly
申请人:The Procter & Gamble Company；
IPC主号:

专利说明:

(54) Title: COMPOSITIONS FOR PERSONAL CARE AND METHODS FOR MANUFACTURING THE SAME (51) Int.CI .: A61K 8/891; A61K 8/892; A61K 8/06; A61Q 5/12; A61K 31/444; A61K 33/30 (30) Unionist Priority: 07/10/2011 US 61 / 544,769 (73) Holder (s): THE PROCTER & GAMBLE COMPANY (72) Inventor (s): ERIC SCOTT JOHNSON; JAMES ANTHONY STAUDIGEL; SEAN MICHAEL RENOCK; MARJORIE MOSSMAN PEFFLY; KELLY ROSE KROGER LYONS
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COMPOSITIONS FOR PERSONAL CARE AND METHODS FOR THE MANUFACTURE OF THE SAME [001] FIELD OF THE INVENTION [002] The present invention relates to a composition for personal care and methods for the manufacture thereof. More specifically, it relates to a personal care composition including an anionic surfactant, a cationic conditioning polymer and a silicone emulsion. [003] BACKGROUND OF THE INVENTION [004] Conditioner shampoos or hair products 2in-1 which comprise a detersive surfactant and hair conditioning agents are known. Such personal care compositions typically comprise an anionic detergent surfactant in combination with a conditioning agent, such as silicone, hydrocarbon oil, fatty esters, etc. These products have become more popular with consumers as a means of conveniently obtaining hair conditioning and cleaning performance from a single product. [005] Many conditioning compositions for personal care, however, do not provide sufficient deposition of conditioning agents on the hair or skin during the application process and, if deposition is possible, it only occurs in formulations with relatively low levels of anionic surfactant. Without this proper deposition, a large part of the conditioning agent is rinsed during the application process and therefore offers little or no conditioning benefit. Without sufficient deposition of the conditioning agent on the hair or skin, relatively high levels of conditioning agents may be necessary. However, these high levels of a conditioning agent can
2/68 increase raw material costs, reduce foaming and generate product stability problems. In addition, limitations in the total anionic surfactant to form the coacervate may limit the foam generation potential of a composition or cause the need for the use of high levels of low-cost amphoteric surfactants to obtain a good generation of foam.
[006] A known method for improving the deposition of a conditioning agent on the hair involves the use of specific cationic deposition polymers. These polymers may be synthetic, but the most common is that they are natural cellulosic or guar gum polymers that have been modified with cationic substituents.
[007] The formation of a coacervate by diluting the cleaning composition with water is important to improve the deposition of several conditioning assets, specifically those that have small droplet sizes (ie, <2 microns). In order to form a coacervate, cleaning compositions comprising typical cationic polymers tend to be significantly limited in the concentrations of total anionic surfactant, in order to achieve adequate levels of the coacervate particles by dilution. However, lower levels of anionic surfactants tend to limit the volume of the foam that can be achieved with a specific cleaning composition. Thus, for high foaming and low-cost coacervate-forming compositions, it is desirable to use a cationic polymer that can form a coacervate in the presence of high levels of anionic surfactant.
3/68 [008] However, another complexity appears when the composition comprises an active substance, such as an anti-dandruff active, which also needs to be deposited on the scalp in an effective quantity and quality of deposition. However, the excellent quantity and quality of deposition of the active substances, for example, through the use of high levels of cationic polymers and those with a higher charge density, are with a tactile feeling that many consumers are often associated with hair conditioning. consider unacceptable.
[009] Consequently, there needs to be a conditioning composition that provides excellent deposition performance of active substances, without replacing the conditioning of the hair and the tactile sensation of the hair. [010] SUMMARY OF THE INVENTION [011] These and other characteristics, aspects and advantages of the claimed invention will be evident to those skilled in the art from a reading of the present description. [012] In accordance with an embodiment of the present invention, a composition for personal care is provided. The composition comprises a) an anionic surfactant; b) a cationic conditioning polymer; and a silicone emulsion. The cationic conditioning polymer is selected from at least one of i) a cationic guar gum polymer, in which the cationic guar gum polymer has an average molecular weight less than about 1 million g / mol and in which the polymer cationic guar gum has a charge density of about 0.1 meq / g to about 2.5 meq / g; or ii) a cationic copolymer of an acrylamide monomer and a cationic monomer, wherein the copolymer has a density of
4/68 load of about 1.0 meq / g to about 3.0 meq / g. The silicone emulsion comprises an insoluble polysiloxane having a general formula of R ¹ - [O-Sil · ®] n-OR ¹ , where n is an integer, R is a substituted or unsubstituted C 1 to C 6 alkyl or aryl and R ¹ is a hydrogen or a substituted or unsubstituted C1 to C1 alkyl or aryl, wherein the insoluble polysiloxane has an average molecular weight within the range of about 50,000 to about 500,000 g / mol and an average particle size within the range from about 30 nm to about 10 pm, in which a total content of a cyclic polysiloxane having a general formula:
RRO —- Si— is present in the silicone emulsion in an amount less than about 2.5% by weight, based on the total weight of insoluble polysiloxane and cyclic polysiloxane, where R is as defined above, where m is 4 or 5 and where the composition forms particles of the coacervate upon dilution in water, and where a percentage of the particles of the coacervate with a small flake size greater than about 20 microns is from about 1% to about 60% dilution with water.
[013] In accordance with another embodiment of the present invention, a method for achieving the improved tactile sensation of the hair is provided. The method comprises applying to the hair a composition comprising: a) an anionic surfactant; b) a cationic conditioning polymer; and c) a silicone emulsion. The cationic conditioning polymer is selected from at least
5/68 one of i) a cationic guar gum polymer, in which the cationic guar gum polymer has an average weight molecular weight less than about 1 million g / mol and in which the cationic guar gum polymer has a density of charge of about 0.1 meq / g to about 2.5 meq / g; or ii) a cationic copolymer of an acrylamide monomer and a cationic monomer, wherein the copolymer has a charge density of about 1.0 meq / g to about 3.0 meq / g. The silicone emulsion comprises an insoluble polysiloxane having a general formula of R ¹ - [O-S1R2] n-OR ¹ , where n is an integer, R is a substituted or unsubstituted C 1-10 alkyl or aryl, and R ¹ is a hydrogen or a substituted or unsubstituted C1-10 alkyl or aryl, wherein the insoluble polysiloxane has an average molecular weight within the range of about 50,000 to about 500,000 g / mol and an average particle size within the range from about 30 nm to about 10 pm, where a total content of a cyclic polysiloxane having a general formula:
R R
The —- Si—
111 is present in the silicone emulsion in an amount less than 2.5% by weight, based on the total weight of the insoluble polysiloxanes and the cyclic polysiloxane, R is as defined above, where m is 4 or 5, where the composition forms coacervate particles upon dilution in water, where the coacervate particles have a tightening flow viscosity of about 1 Pa.s to about 100 Pa.s, and in which a percentage of the particles
6/68 coacervate with a small flake size greater than about 20 microns is about 1% to about 60%.
[014] In accordance with another embodiment of the present invention, a method for making a personal care composition comprising an anionic surfactant, a cationic conditioning polymer and a silicone emulsion is provided. The method comprises (a) combining the anionic surfactant and the cationic conditioning polymer in water, in which the cationic conditioning polymer is selected from at least one of (i) a cationic guar gum polymer, in which the guar gum polymer cationic has an average molecular weight less than about 1 million g / mol, and the cationic guar gum polymer has a charge density of about 0.1 meq / g to about 2.5 meq / g; or (b) a cationic copolymer of an acrylamide monomer and a cationic monomer, wherein the copolymer has a charge density of about 1 meq / g to about 3 meq / g; and (ii) combining a silicone emulsion and an aqueous composition, which includes a product from step (i) to form the personal care composition, the silicone emulsion comprising an insoluble polysiloxane having a general formula of R ¹ - [O -SiR ₂ ] _n -OR ¹ , where n is an integer, R is a substituted or unsubstituted C1 to C10 alkyl or aryl, and R ¹ is a substituted or unsubstituted C1 to C10 alkyl or aryl, wherein the insoluble polysiloxane has an average molecular weight within the range of about 50,000 to about 500,000 g / mol, and an average particle size within the range of about 30 nm to about 10 pm, and where a content total of a cyclic polysiloxane having a general formula
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R R
The —- Si - 1
1___I is present in the silicone emulsion in an amount less than 2.5% by weight, based on the total weight of insoluble polysiloxanes and cyclic polysiloxane, where R is as defined above, where m is 4 or 5, and in that the composition forms coacervate particles upon dilution in water, where the coacervate particles have a tightening flow viscosity of about 1 Pa.s to about 100 Pa.s, and where a percentage of the coacervate particles with a small flake size greater than about 20 microns is about 1% to about 60%.
[015] BRIEF DESCRIPTION OF THE DRAWINGS [016] Figure 1 is a graphical representation showing the effect of the salt concentration of the small size selected from at least one among a flake of a coacervate of a composition selected from at least one among personal care of according to an embodiment of the present invention.
[017] Figure 2 is a graphical representation showing the effect of the small floc-sized salt concentration of a coacervate of a personal care composition according to another embodiment of the present invention. [018] Figure 3 is a graphical representation showing the effect of the small floc-sized salt concentration of a coacervate of a personal care composition according to another embodiment of the present invention. [019] Figure 4 is a graphical representation showing the effect of small flake size salt concentration
8/68 of a coacervate of a personal care composition according to another embodiment of the present invention. [020] Figure 5 is a graphical representation showing the effect of the small floc-sized salt concentration of a coacervate of a personal care composition according to another embodiment of the present invention. [021] DETAILED DESCRIPTION OF THE INVENTION [022] All percentages are expressed by weight of the total composition, except where otherwise specified. All reasons are weight reasons, unless otherwise specified. All ranges of values are inclusive and combinable. The number of significant figures is not representative of either the limitation of the quantities indicated or the accuracy of the measurements. The term molecular weight or PM as used here, refers to the average weight molecular weight unless otherwise specified. QS means the quantity sufficient for 100%.
[023] All numerical quantities are understood to be modified by the word about, except when specifically stated otherwise. Except where otherwise indicated, it is understood that all measurements should be made at 25 ° C and under ambient conditions, the term ambient conditions meaning conditions under about a pressure atmosphere and about 50% relative humidity. All of these weights, as per the ingredients on the list, are based on the active content and do not include carriers or by-products that may be included in commercially available materials, except where indicated otherwise.
[024] For use in the present invention, which comprises means that other steps and other ingredients than
9/68 affect the final result can be added. This term encompasses terms consisting of and consisting essentially of. The compositions and methods, uses, kits and processes of the present invention may comprise, consist of and consist essentially of the essential elements and limitations of the invention described herein, as well as any of the additional or optional ingredients, components, steps or limitations described herein.
[025] The term substantially exempt as used herein means less than about 1%, or less than about 0.8%, or less than about 0.5%, or less than about 0.3% or about 0%, by total weight of the composition.
[026] The term hair, as used here, means mammal hair including scalp hair, facial hair and body hair, particularly hair on the head and scalp of human beings.
[027] The term cosmetically acceptable, as used here, means that the compositions, formulations or components described are suitable for use in contact with human keratinous tissue without causing toxicity, incompatibility, instability, allergic response and the like. All of the compositions described herein that are intended to be applied directly to keratinous tissue are limited to those that are cosmetically acceptable.
[028] The term derivatives, as used here, includes, but is not limited to, amide, ether, ester, amino, carboxyl, acetyl, acid and / or alcohol derivatives of a given compound.
[029] For use in the present invention, the term polymer, means a chemical product formed from the polymerization of two or more monomers. For use in
In the present invention, the term polymer includes all materials produced by the polymerization of monomers, as well as natural polymers. Polymers produced from only one type of monomer are called homopolymers. A polymer comprises at least two monomers. Polymers produced from two or more different types of monomers are called copolymers. The distribution of the different monomers can be calculated statistically or in blocks, both possibilities being suitable for the present invention. Unless otherwise specified, the term polymer used in the present invention includes any type of polymer including homopolymers and copolymers.
[030] The term kit, as used here, means a packaging unit that comprises a plurality of components. An example of a kit is, for example, a first composition and a second composition packaged separately. Another kit may comprise a first composition and a device for applying energy. A different kit can comprise three different types of makeup packaged separately and an implement for combing hair. An additional kit may comprise application instructions comprising a method and a composition / formulation.
[031] The term coacervate as used here, means the complex that forms between the surfactant and the polymer, which can be soluble or insoluble in the pure personal care composition, typically forming an insoluble complex in the pure personal care composition and which can become less soluble by dilution and, thus, result in an increase in its phase separation or precipitate content in the solution.
11/68 [032] The term small flake as used here, means localized groups of insoluble and agglomerated coacervate that can comprise polymer, surfactant, water and dispersed phases present in the composition, such as anti-dandruff and silicone emulsion. Any small flake size shown in the present invention is obtained using Lasentec Focused Beam Reflectance Measurment (FBRM) [model S400A available from Mettler Toledo Corp.] according to the Lasentec method, which is described below.
[033] The term isotropic as used here, means a specific structure phase of the coacervate, in which the structure is identical along any of the three orthogonal directions in space, and is therefore dark or not birefringent when viewed through the cross polarized light. (One direction is orthogonal to the other if the vector component of the first, in the direction of the second, is zero.) (Laughlin, R. G. (1994). The Aqueous Phase Behavior of Surfactants, 182, 8.2).
[034] The term charge density as used here, means the ratio of the number of positive charges in a monomeric unit from which a polymer is comprised to the PM of said monomeric unit. The charge density multiplied by the polymer's PM determines the number of positively charged sites in a given polymer chain. For cationic guar gums, the charge density is measured using standard elemental analysis of the percentage of nitrogen known to the person skilled in the art.
This nitrogen percentage value, corrected for total protein analysis, can then be used to calculate the number or equivalent of positive charges per gram of polymer. For copolymers
12/68 gram of polymer.
are known, cationic, charge density is a function of the monomers used in the synthesis. Standard NMR techniques known to the person skilled in the art could be used to confirm the ratio between cationic and nonionic monomers in the polymer. This could then be used to calculate the number or equivalent of positive charges per. Once these values the charge density is recorded milliequivalent (meq) per gram of cationic polymer. [035] The term (meth) acrylamide as used here means methylacrylamide or acrylamide. The term (meth) acrylic acid as used here means acrylic acid or methacrylic acid.
[036] In accordance with modalities of the present invention, a composition for personal care is provided, the composition of which includes an anionic surfactant, a cationic conditioning polymer and a silicone emulsion including an insoluble polysiloxane.
[037] It was surprisingly discovered that by formulating the personal care composition with a silicone emulsion of an insoluble polysiloxane, for example, polydimethylsiloxane, having a total cyclic polysiloxane content of less than 2.5% by weight, based on the total weight of polysiloxanes, in combination with cationic guar gum polymers and / or cationic copolymers of acrylamide monomers and cationic monomers, conditioning polymer deposition is improved and insoluble polysiloxane on the skin and hair can be enhanced with minimal or no consumer acceptance of the tactile sensation and conditioning of the hair.
13/68 [038] Without adhering to any specific theory, it is believed that insoluble polysiloxane emulsions that have cyclic polysiloxane levels below the above limit provide enhanced consumer acceptance of hair conditioning and tactile sensation in the hair and yet, also, excellent scalp deposition. Cyclic polysiloxanes are believed to disrupt the formation of a higher-order surfactant micelle, which in turn requires an increase in the amount of salt to be added to the composition in order to achieve acceptable composition rheology parameters. However, the observed increase in viscosity induced by the increased salt content may also be associated with an increased small flake size of the coacervate, as shown in Figures 1 and 2. Increasing the small flake size can negatively affect scalp deposition, for example, by a larger flake getting trapped in the hair. By mixing an anionic surfactant, a cationic conditioning polymer and the silicone emulsion defined here, it was surprisingly discovered that both the desirable benefits for the consumer of the lower molecular weight cationic guar gum and the enhanced deposition of cationic copolymers and silicone can be achieved in a single composition while still preserving consumer desirability. Advantageously, this combination of surfactant, polymer and silicone is useful for the deposition of assets, such as anti-dandruff assets.
[039] More specifically, it is believed that an insoluble polysiloxane of a desired particle size (<10 microns) in the embodiments of the present invention can be delivered to the hair and scalp through entrapment in the
14/68 microstructure of the coacervate. The species of insoluble polysiloxane trapped in the microstructure of the coacervate results in a less tightly bound structure, which may be characteristic of elevated deposition systems such as cationic guar gum / synthetic copolymer systems. The less tightly bound coacervate microstructures can be characterized by reduced complex coacervate rheology (CCR).
[040] The impact of the silicone emulsion further determines the extent of the desired reduction in small flake size and coacervate rheology. In general, silicone microemulsions and nanoemulsions contain varying amounts of residual cyclic polysiloxanes. For example, dimethicone can include significant amounts of cyclic polysiloxanes, such as octamethylcyclotetrasiloxane and decamethylcyclotetrasiloxane. Cyclic polysiloxanes can significantly impact anionic surfactant-based compositions, such as shampoos, by disrupting the formation of high-order surfactant micelles, which is of critical importance for achieving compositional viscosity targets acceptable to the consumer. As a consequence of the interruption of high-order micelle formation, higher levels of NaCl are added to the personal care composition to compensate for the drop in viscosity. However, increasing the salt content produces a larger coacervate particle size, which has been shown to result in a negative cosmetic experiment. Consequently, silicone emulsions of polysiloxanes with cyclic polysiloxanes below the specified levels unexpectedly produced excellent deposition and quality, while providing enhanced hair tactile sensation.
15/68 [041] The characteristics of the composition according to the first aspect, as well as the other aspects and other relevant components, are described in detail later in this document. All components of the composition described herein must be physically and chemically compatible with the essential components described herein and must not otherwise unduly impair the stability, aesthetics or performance of the product.
[042] In accordance with an embodiment of the present invention, a personal care composition is provided, comprising: a) an anionic surfactant; b) a cationic conditioning polymer; and c) a silicone emulsion comprising an insoluble polysiloxane.
[043] A. Silicone emulsion [044] Silicone emulsions suitable for use in the embodiments of the present invention include insoluble polysiloxane emulsions prepared according to the descriptions provided in US patent No. 4,476,282 and in US patent application publication 2007 / 0276087. Consequently, the insoluble polysiloxanes called in the present invention for the purpose of the invention include polysiloxanes such as alpha, omega or alpha hydroxy terminated polysiloxanes, omega alkoxy-terminated polysiloxanes that have a molecular weight within the range of about 50,000 to about 500,000 g / mol. As used here, the term insoluble polysiloxane means that the water solubility of the polysiloxane is less than 0.05% by weight. In another embodiment, the water solubility of the polysiloxane is less than 0.02% by weight, or less than 0.01% by weight, or less than 0.001% by weight. According to one embodiment, insoluble polysiloxane is present in the composition for
16/68 personal care in an amount within the range of about 0.1% by weight to about 3% by weight, based on the total weight of the composition. For example, insoluble polysiloxane can be present in an amount within the range of about 0.2%, by weight, to about 2.5%, by weight, or about 0.4%, by weight, at about from 2.0% by weight or from about 0.5% by weight to about 1.5% by weight, based on the total weight of the composition.
[045] According to an aspect of the silicone emulsion, the insoluble polysiloxane used in the present invention includes, alkoxy-terminated polysiloxanes or with omega and alpha hydroxy which have a general formula I:
R ¹ - [O-SiR2] n-OR ¹ , where 'n' is an integer, R is a substituted or unsubstituted C1 to C10 alkyl or aryl, and R ¹ is a hydrogen or a C1 to C10 alkyl or substituted or unsubstituted aryl. Non-limiting examples of R and R ¹ can be selected independently from alkyl groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tercbutyl, n-pentyl, isopentyl, neopentyl, tertpentyl, hexyl as n- hexyl, heptyl as n-heptyl, octyl as noctila and isooctyl as 2,2,4-trimethyl-pentyl, nonyl as n-nonyl, decylate as n-decyl, dodecyl as n-dodecyl, octadecyl as n-octadecyl; or aryl groups such as phenyl, naphthyl, anthryl and phenanthryl. In one embodiment, the insoluble polysiloxane has a general formula H- [O-SiR2] n-OH. [046] According to another aspect of the silicone emulsion, insoluble polysiloxane has an average molecular weight within the range of about 50,000 to about
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500,000 g / mol. For example, insoluble polysiloxane can have an average molecular weight within the range of about 60,000 to about 400,000; from about 75,000 to about 300,000; from about 100,000 to about 200,000; or the average molecular weight can be about 150,000 g / mol.
[047] According to another aspect of the silicone emulsion, the total content of a cyclic polysiloxane that has a general formula:
RR O-Si— where R is as defined above, and where m is 4 or 5, is present in the silicone emulsion in an amount less than about 2.5% by weight, based on the total weight of the polysiloxanes . For example, dimethicone can include significant amounts of cyclic polysiloxanes, such as octamethylcyclotetrasiloxane (D4) and decamethylcyclotetrasilasil (D5). In one embodiment, the amount of D4 is less than about 2.0%, or less than about 1.5%, or less than about 1.0%, or less than about 0.5%, based on in the total weight of the polysiloxanes. In one embodiment, the amount of D5 is less than about 0.5%, or less than about 0.4%, or less than about 0.3%, or less than about 0.2%, based on in the total weight of the polysiloxanes.
[048] According to yet another aspect of the silicone emulsion, the emulsion has a viscosity of up to about 500,000 cPs. For example, viscosity can be within the range of about 75,000 to about 300,000, from about 100,000 to about 200,000, or about 150,000 cPs.
18/68 [049] According to yet another aspect of the silicone emulsion, the insoluble polysiloxane has an average particle size within the range of about 30 nm to about 10 microns. The average particle size can be within the range of about 40 nm to about 5 microns, from about 50 nm to about 1 micron, from about 75 nm to about 500 nm or about 100 nm, for example .
[050] The average molecular weight of the insoluble polysiloxane, the viscosity of the silicone emulsion and the particle size comprising the insoluble polysiloxane are determined by the methods commonly used by those skilled in the art, such as the methods of the present invention presented in Smith, AL The Analytical Chemistry of Silicones, John Wiley & Sons, Inc .: New York, USA, 1991. For example, the viscosity of the silicone emulsion can be measured at 30 ° C with a Brookfield viscometer with a 6 spindle at 2.5 rpm.
[051] According to another aspect of the silicone emulsion, the emulsion additionally includes an anionic surfactant that participates in the supply of high viscosity internal phase emulsions that have particle sizes in the range of about 30 nm to about 10 microns . The anionic surfactant is selected from organic sulfonic acids. The most common sulfonic acids used in the present process are alkyl aryl sulfonic acid; alkyl aryl polyoxy ethylene sulfonic acid; alkyl sulfonic acid; and polyoxy ethylene sulfonic alkyl acid. The general formulas of sulfonic acids are as shown below:
R ² C ₆ H4SO3H (II)
R ² C ₆ H4O (C2H4O) _m SO3H (III)
R ² SO3H (IV)
R ² O (C2H4O) mSO3H (IV)
19/68 [052] Where R ² , which may be different, is a monovalent hydrocarbon radical that has at least 6 atoms of ₂ carbon. Non-limiting examples of R include hexyl, octyl, decyl, dodecyl, cetyl, stearyl, myristyl and oleyl.
'm' is an integer from 1 to 25. Exemplary anionic surfactants include, but are not limited to, octylbenzene sulfonic acid; dodecyl benzene sulfonic acid; cetylbenzene sulfonic acid; alpha-octyl sulfonic acid; alpha-dodecyl sulfonic acid; alpha-cetyl sulfonic acid; polyoxy ethylene octylbenzene sulfonic acid; polyoxy ethylene dodecyl benzene sulfonic acid; polyoxy ethylene cetylbenzene sulfonic acid; polyoxy ethylene octyl sulfonic acid; polyoxy ethylene dodecyl sulfonic acid; and polyoxy ethylene cetyl sulfonic acid. In general, from 1 to 15% of anionic surfactant are used in the emulsion process. For example, 3 to 10% anionic surfactant can be used to obtain an optimal result. [053] The silicone emulsion can also include an additional emulsifier together with the anionic surfactant, which together with the controlled temperature of emulsification and polymerization, facilitates the production of the emulsion in a simple and fast way. Nonionic emulsifiers that have a hydrophilic lipophilic balance (HLB) value of 10 to 19 are suitable and include polyoxyalkylene alkyl ether, polyoxy alkylene alkyl phenyl ethers and polyoxy alkylene sorbitan esters. Some useful emulsifiers with a BHL value of 10 to 19 include, but are not limited to, polyethylene glycol octyl ether; polyethylene glycol lauryl ether; polyethylene glycol tridecyl ether; polyethylene glycol cetyl ether; polyethylene stearyl ether
20/68 glycol; polyethylene glycol nonyl phenyl ether; polyethylene glycol dodecyl phenyl ether; polyethylene glycol cetylphenyl ether; polyethylene glycol stearyl phenyl ether; polyethylene glycol mono sorbitan stearate; and polyethylene glycol mono-oleate sorbitan.
[054] B. Cationic Conditioning Polymers [055] According to another aspect of the embodiments of the present invention, the cationic conditioning polymer includes at least one of (a) a cationic guar gum polymer or (b) a cationic copolymer of acrylamide monomers and cationic monomers .
[056] (a) cationic guar gum polymers [057] According to one embodiment of the present invention, the personal care composition comprises a cationic guar gum polymer, which is a cationically substituted galactomannan gum (guar gum). Guar gum for use in the preparation of these guar gum derivatives is typically obtained as a naturally occurring material from the seeds of the guar plant. The guar gum molecule itself is a straight-chain mannan, which is branched at regular intervals with single-membered galactose units into alternative mannose units. The mannose units are linked to each other by β (1-4) glycosidic bonds. Galactose branching occurs through an α (1-6) link. The cationic derivatives of guar gums are obtained through the reaction between the hydroxyl groups of polygalactomannan and reactive quaternary ammonium compounds. The degree of substitution of the cationic groups on the guar gum structure must be sufficient to provide the cationic charge density described above.
21/68 [058] According to one embodiment, the cationic guar gum polymer has an average weight PM less than about 1 million g / mol and has a charge density of about 0.1 meq / g about 2.5 meq / g. In one embodiment, the cationic guar gum polymer has an average weight MW less than 900 thousand g / mol or from about 150 thousand to about
800 thousand g / mol or of fence in 200 thousand The fence in 700 thousand g / mol or in fence in 300 thousand The fence in 700 thousand g / mol or in fence in 400 thousand The fence in 600 thousand g / mol, in fence of 150 thousand about 800 thousand g / mol or of about 200 thousand a fence of 700 thousand g / mol or about
from 300 thousand to about 700 thousand g / mol or from 400 thousand to about 600 thousand g / mol. In one embodiment, the cationic guar gum polymer has a charge density of about
0.2 about in 2.2 meq / g or 2.0 meq / g or in about 0.4 about 0.5 meq / g to fence in
from about 0.3 to about 1.8 meq / g; or 1.5 meq / g.
[059] In one embodiment, the composition comprises from about 0.01% to less than about 0.6% or from about 0.04% to about 0.55% or from about 0.08% to about 0.5% or about 0.16% to about 0.5% or about 0.2% to about 0.5% or about 0.3% to about 0.5 % or from about 0.4% to about 0.5%, of the cationic guar gum polymer (a), by total weight of the composition.
[060] The cationic guar gum polymer can be formed from quaternary ammonium compounds. In one embodiment, the quaternary ammonium compounds forming the cationic guar gum polymer adapt to the general formula:
R ⁵ i
R4 — N — R ⁶ zI
R ³
22/68 where R ³ , R ⁴ and R ⁵ are methyl or ethyl groups; R ⁶ is either an epoxy alkyl group with the following general formula:
H C-CH-R7— ² z
O or R ⁶ is a halohydrin group with the following general formula
X-CH ;, - CH-R7— ² I
OH where R ⁷ is a C 1 to C 3 alkylene; X is chlorine or bromine and Z is an anion like Cl-, Br-, I- or HSO4-.
[061] In one embodiment, the cationic guar gum polymer adapts to the general formula:
R4
I
R —O-CHo-CH — R7-N ⁺ —R5 II
OH R3 where R ⁸ is guar gum; and where R ⁴ , R ⁵ , R ⁶ and R ⁷ are as defined above; and where Z is a halogen. In one embodiment, the cationic guar gum polymer adapts to formula G:
R ° —O-CH ₂ -CH-CH ₂ N'i; CH ₃ ) 3Cr
OH
Formula G [062] Other suitable cationic guar gum polymers include cationic guar gum derivatives, such as hydroxypropyl triamonium guar gum chloride. In one embodiment, the cationic guar gum polymer is a guar gum chloride
23/68 of hydroxy propyl triamonium. Examples of specific triamonium hydroxy propyl guar gum chlorides include the Jaguar® series commercially available from RhonePoulenc Incorporated, for example, Jaguar® C-500, commercially available from Rhodia. Jaguar® C-500 has a charge density of 0.8 meq / g and a PM of 500,000 g / mol. Another guar gum chloride of hydroxy propyl triamonium with a charge density of about 1.1 meq / g and a PM of about 500,000 g / mol is available from Ashland. An additional hydroxypropyl triamonium guar gum chloride with a charge density of about 1.5 meq / g and a PM of about 500,000 g / mol is available from Ashland. [063] Jaguar® C-17 is not suitable as the cationic guar gum polymer (a) for the present invention. Jaguar® C-17 adapts to formula G and has a cationic charge density of about 0.6 meq / g and a PM of about 2.2 million g / mol and is available from the Rhodia Company. Jaguar® C 13S is also not suitable for the present invention since, although it adapts to formula G, it has a PM of 2.2 million g / mol and a cationic charge density of about 0.8 meq / g (disposed Rhodia Company). In one embodiment, the present invention is substantially free from Jaguar® C-17 and / or Jaguar® C 13S.
[064] Other suitable polymers include: Hi-Care 1000, which has a charge density of about 0.7 meq / g and a PM of about 600,000 g / mol and is available from Rhodia; NHance 3269 and N-Hance 3270, which have a charge density of about 0.7 meq / g and a PM of about 425,000 g / mol and are available from Ashland; AquaCat CG518 has a charge density of about 0.9 meq / g and a PM of around 50,000 g / mol and is available from Ashland.
24/68 [065] (ii) Cationic copolymers [066] According to an embodiment of the present invention, the personal care composition comprises (b) a cationic copolymer of an acrylamide monomer and a cationic monomer, in which the copolymer has a charge density of about 1.0 meq / g to about 3.0 meq / g. In one embodiment, the cationic copolymer is a synthetic cationic copolymer of acrylamide monomers and cationic monomers. [067] In one embodiment, the cationic copolymer comprises:
(i) an acrylamide monomer of the following formula AM:
Formula AM where R ⁹ is H or C2_4 alkyl; and R ¹⁰ and R ¹¹ are independently selected from the group consisting of H, C1-4 alkyl, CH2OCH3, CH2OCH ₂ CH (CH ₃ ) 2 and phenyl, or together they are C ₃ _ ₆ cycloalkyl; and (ii) a cationic monomer according to the CM formula:

ch ₃
N + -
I ΧΟΗ CH ₃
I L
CH ₂ CHCH ₂ —N ⁺ —CH ₃
CH ₃ ^jw ch ₃
CM Formula
25/68 where k = 1, each between v, ν 'and v is, independently, an integer from 1 to 6, w is zero or an integer from 1 to 10 and X ”is an anion.
[068] In one embodiment, the cationic monomer according to the CM formula and where k = l, v = 3ew = 0, z = 1 and X ”is Cl” to form the following structure:
| ÇHj OH ÇHj
NH- (CH ₂ ) jN ⁺ -CH ₂ CHCHj-N ⁺ -CHj
CHj ^C1 'CHj ^cr [069] The above structure can be called diquaternary. In another modality, the cationic monomer is in accordance with the CM formula and in which v and v are each 3, ν '= 1, w = 1, y = 1 and X ”is Cl”, as:
[070] The above structure can be called a triquaternary. [071] In one embodiment, the acrylamide monomer is acrylamide or methacrylamide.
[072] In one embodiment, the cationic copolymer (b) is
AM: TRIQUAT which is a copolymer of acrylamide and 1,326 / 68
Propanediamine, N- [2 - [[[dimethyl [3 - [(2-methyl-1-oxo-2propenyl) amino] propyl] ammonium] acetyl] amino] ethyl] 2-hydroxyN, N, N ', N', N'-pentamethyl-, trichloride. AM: TRIQUAT is also known as polyquaternium 76 (PQ76). AM: TRIQUAT can have a charge density of 1.6 meq / g and a PM of 1.1 million g / mol.
[073] In an alternative embodiment, the cationic copolymer is an acrylamide monomer and a cationic monomer, in which the cationic monomer is selected from the group consisting of: (methyl) amino ethyl dimethyl acrylate, (methyl) dimethylaminopropyl acrylate , dithertiobutylaminoethyl (meth) acrylate, dimethylamino methyl (meth) acrylamide, dimethylaminopropyl (meth) acrylamide;
ethylenimine, vinyl amine, 2-vinylpyridine, 4-vinylpyridine; ethyl chloride (meth) trimethyl ammonium acrylate, ethyl (meth) acrylate trimethyl ammonium sulfate, ethyl chloride (meth) acrylate dimethyl ammonium, ethyl 4-benzoyl benzyl dimethyl ammonium chloride, ethyl chloride ( met) trimethyl ammonium acrylamide, propyl chloride (meth) trimethyl ammonium acrylate, vinylbenzyl trimethyl ammonium chloride, diallyl dimethyl ammonium chloride and mixtures thereof. [074] In one embodiment, the cationic copolymer comprises a cationic monomer selected from the group consisting of: cationic monomers including ethyl chloride (meth) acrylate, trimethyl ammonium, ethyl (meth) acrylate, trimethyl ammonium sulfate, ethyl chloride (meth) benzyl dimethyl ammonium acrylate, 4-benzoyl benzyl dimethyl ammonium acrylate chloride, ethyl (meth) trimethyl ammonium acrylate, trimethyl ammonium propyl (meth) chloride, vinylbenzyl chloride
27/68 trimethyl ammonium, diallyl dimethyl ammonium chloride and mixtures thereof.
[075] In one embodiment, the cationic copolymer is soluble in water. In one embodiment, the cationic copolymer is formed from (1) copolymers of (meth) acrylamide and cationic monomers based on (meth) acrylamide and / or cationic monomers of stable hydrolysis, (2) (meth) acrylamide terpolymers ( met) acrylic monomers based on cationic acid esters monomers based on (meth) acrylamide and / or cationic monomers of stable hydrolysis. Monomers based on cationic (meth) acrylic acid esters can be cationized (meth) acrylic acid esters containing a quaternized N atom. In one embodiment, the cationized esters of (meth) acrylic acid containing a quaternized N atom are C1 to C3 quaternized amino alkyl dialkyl acrylates in the alkyl and alkylene groups. In one embodiment, the cationized esters of (meth) acrylic acid containing a quaternized N atom are selected from the group consisting of: ammonium salts of dimethylamino methyl (meth) acrylate, (methyl) dimethyl amino ethyl acrylate, (met) dimethylaminopropyl acrylate, diethylamino methyl (meth) acrylate, diethylaminoethyl (meth) acrylate; and (meth) diethylaminopropyl acrylate quaternized with methyl chloride. In one embodiment, the cationized esters of (meth) acrylic acid containing a quaternized N atom is amino ethyl dimethyl acrylate, which is quaternized with an alkyl halide or with methyl chloride or benzyl chloride or dimethyl sulfate (ADAME-Quat ). In one embodiment, the cationic monomer when based on (meth) acrylamides is dialkyl amino alkyl (meth) acrylamides quaternized with C1
28/68 to C3 in the alkyl and alkylene or dimethylaminopropylacrylamide groups, which is quaternized with an alkyl halide or methyl chloride or benzyl chloride or dimethyl sulfate.
[076] In one embodiment, the cationic monomer based on a (meth) acrylamide is a dialkyl amino alkyl (meth) acrylamide quaternized with C1 to C3 in the alkyl and alkylene groups. In one embodiment, the cationic monomer based on a (meth) acrylamide is dimethylaminopropylacrylamide, which is quaternized with an alkyl halide, specifically methyl chloride or benzyl chloride or dimethyl sulfate.
[077] In one embodiment, the cationic monomer is a cationic monomer with stable hydrolysis. The cationic monomers with stable hydrolysis can be, in addition to dialkyl amino alkyl (meth) acrylamide, all monomers that can be observed as stable in the OECD hydrolysis test. In one embodiment, the cationic monomer has stable hydrolysis and the cationic monomer with stable hydrolysis is selected from the group consisting of: diallyl dimethyl ammonium chloride and water soluble derivatives of cationic styrene.
[078] In one embodiment, the cationic copolymer is an acrylamide terpolymer, quaternized 2dimethylamoniomethyl (meth) acrylate with methyl chloride (ADAME-Q) and 3-dimethylammoniopropyl (meth) quaternized acrylamide with methyl chloride (DIMAPA-Q) . In one embodiment, the cationic copolymer is formed from acrylamide and acrylamidopropyltrimethylammonium chloride, in which acrylamidopropyltrimethylammonium chloride has a charge density of about 1.0 meq / g to about 3.0 meq / g.
29/68 [079] In one embodiment, the cationic copolymer has a charge density of about 1.1 meq / g to about 2.5 meq / g or about 1.1 meq / g to about 2.3 meq / g or about 1.2 meq / g about 2.2 meq / g or about 1.2 meq / g about 2.1 meq / g or about 1.3 meq / g about 2.0 meq / g or about 1.3 meq / g to about 1.9 meq / g.
[080] In one embodiment, the cationic copolymer has a PM
of fence 100 thousand g / mol about of 2 millions g / mol or in about 300 thousand g / mol a about 1.8 millions g / mol or in about 500 thousand g / mol a about 1.6 millions g / mol or in about 700 thousand g / mol a about 1.4 millions g / mol or in about 900 thousand g / mol a about 1.2 millions g / mol. [081] In a modality, the cationic copolymer is one
copolymer of trimethylammoniopropylmethacrylamide chloride-Nacrylamide, which is also known as AM: MAPTAC. AM: MAPTAC can have a charge density of about
1.3 meq / g and a PM of about 1.1 million g / mol. In one embodiment, the cationic copolymer is AM: ATPAC. AM: ATPAC can have a charge density of about 1.8 meq / g and a PM of about 1.1 million g / mol.
[082] In one embodiment, the cationic guar gum polymer (a) and the cationic copolymer (b) are present in the composition. In another embodiment, the cationic guar gum polymer and the cationic copolymer are added to the composition as a mixture. Such a mixture is presented in the patent US2011 / 0002868A1 (Bierganns et al, filed on July 1, 2010), which is incorporated herein by reference. In particular, referring to the published text of the patent US2011 / 0002868A1, paragraphs 0042 to 0047 describe cationic copolymers and paragraphs 0092 to 0095
30/68 describe among other polymers of cationic guar gum. In one embodiment, the mixture comprises the cationic guar gum polymer (a) and the cationic copolymer (b), where the cationic copolymer is AM: APTAC. For example, mixtures of cationic guar and AM: APTAC gum that fall within the scope of the present invention are available from Ashland. For example, an Ashland blend is available, which is a 95: 5 blend of propyl triammonium hydroxy guar gum chloride (PM 500,000 g / mol; charge density 1.1 meq / g) for AM / APTAC (PM 1.1 million g / mol; charge density of 1.8 meq / g) that is, a 19: 1 ratio of cationic guar gum polymer (a) to cationic copolymer (b).
[083] The mixture may comprise a cationic copolymer, in which the cationic copolymer is formed from (1) copolymers of (meth) acrylamide and cationic monomers based on (meth) acrylamide and / or cationic monomers with stable hydrolysis, ( 2) (meth) acrylamide terpolymers, monomers based on cationic (meth) acrylic esters and monomers based on (meth) acrylamide and / or cationic monomers with stable hydrolysis. In one embodiment, the mixture is a combination of a water-soluble synthetic cationic copolymer and a polygalactomannan or a polyglycomannan, in which polygalactomannan and polyglycomannan are derived from guar gum and contain quaternary ammonium groups covalently linked to the polysaccharide main chain. In one embodiment, said polygalactomannan or said polyglucomannan has a degree of cationic substitution (DS) having a lower limit of about 0.03 and an upper limit of about 0.7. In one embodiment, the lower limit of the cationic DS is about 0.04 or about 0.06 or about 0.08 or about 0.1 or
31/68 about 0.2. In one embodiment, the upper limit of the cationic DS is about 0.6 or about 0.5 or about 0.4 or about 0.3. In one embodiment, said polygalactomannan or said polyglucomannan has a charge density of about 0.1 to about 2.5 meq / g. [084] According to one embodiment, the sum of the weight of the cationic guar gum polymer (a) + the cationic copolymer (b) is an amount of about 0.0001% less than about 0.6%, in total weight of the composition. The sum of (a) + (b) means the percentage by total weight of the cationic guar gum polymer as defined here and cationic copolymer as defined here, in the total weight of the composition. In one embodiment, the sum of (a) + (b) is about 0.01% less than about 0.6% or about 0.1% less than about 0.5% or about 0.1% less than about 0.4% or about 0.2% less than about 0.3%, by total weight of the composition. The sum of (a) + (b) is the value defined here, because above that content, the small flake size of the coacervate begins to become too large to achieve the benefits. The very large size of the small flake results in more coacervate particles being trapped between the hair fibers, and therefore do not effectively reach the scalp, that is, deposition on the lower scalp and, therefore, cannot supply effectively benefit.
[085] According to one embodiment, the weight ratio of (a) :( b) is about 1000: 1 to about 2: 1. In one embodiment, the weight ratio of (a) :( b) is about 1000: 1 to about 4: 1. In one embodiment, the weight ratio of (a) :( b) is about 800: 1 to about 4: 1 or about 500: 1 to about 4: 1 or about 100: 1 to fence
32/68
in 5: 1 or about 100: 1 to about 6: 1 or about in 50: 1 the fence 6.5: 1 or about 50: 1 to about 7: 1 or in about 50: 1 to about 8.3: 1 or about 50: 1 The
about 16.7: 1.
[086] C. Anionic surfactant [087] According to the modalities of the present invention, the composition comprises an anionic surfactant. Anionic surfactant is included to provide cleaning performance to the composition. The anionic surfactant must be physically and chemically compatible with the essential components described here or it must not otherwise unduly impair the stability, aesthetics or performance of the product. In one embodiment, the composition for personal care additionally includes a co-surfactant, such as amphoteric surfactants, zwitterionic surfactants, cationic surfactants, non-ionic surfactants and mixtures thereof. In one embodiment, the composition comprises from about 5% to about 50% or from about 8% to about 30% or from about 10% to about 25% of a surfactant, by total weight of the composition.
[088] The composition may comprise a detersive surfactant system. The detersive surfactant system can comprise at least one anionic surfactant, and optionally a co-surfactant selected from the group consisting of: an amphoteric surfactant, a zwitterionic surfactant, a cationic surfactant, a nonionic surfactant or a mixture thereof. The concentration of the detersive surfactant system in the composition should be sufficient to provide the desired cleaning and foam performance. In one embodiment, the composition comprises about 5% to about 50% or about 8% to about 30% or about 10%
33/68 to about 25% of the detersive surfactant system, in total weight of the composition.
[089] When considering performance characteristics, such as formation of coacervates, wet conditioning performance, dry conditioning performance and conditioning agent deposition on hair, it is desirable to optimize the levels and types of surfactants in to maximize the performance potential of polymer systems. In one embodiment, the detersive surfactant system for use in the composition comprises an anionic surfactant with an ethoxylate content and an anion content, in which the ethoxylate content is from about 1 to about 10, and in which the anion content is from about 1 to about 10. The combination of such anionic surfactant with the cationic copolymer and the cationic guar gum polymer provides enhanced deposition of the conditioning agents to the hair and / or skin without reducing cleaning or hair-forming performance. foam. An optimum ethoxylate content is calculated based on the stoichiometry of the surfactant structure, which, in turn, is based on a certain weight of the surfactant in which the number of moles of ethoxylation is known. Similarly, given a specific PM from a measurement of the completion of an anionization reaction and a surfactant, the anion content can be calculated.
[090] In one embodiment, the detersive surfactant system comprises at least one anionic surfactant that comprises an anion selected from the group consisting of sulfates, sulfonates, sulfosuccinates, isethionates, carboxylates, phosphates and phosphonates. In one embodiment, the anion is a sulfate.
34/68 [091] In one embodiment, the anionic surfactant is an alkyl sulfate or an alkyl ether sulfate. These materials have the respective formulas R ⁹ OSO3M and R ⁹ O (C2H ₄ O) _m SO ₃ M, where R ⁹ is alkyl or alkenyl of about 8 to about 18 carbon atoms, 'm' is an integer having a value of about 1 to about 10, and M is a cation like ammonium, a monovalent metal cation like sodium and potassium or a polyvalent metal cation like magnesium and calcium. The solubility of the surfactant will depend on the anionic surfactants and the specific cations that may be chosen. In one embodiment, R ⁹ has about 8 to about 18 carbon atoms, or about 10 to about 16 carbon atoms, or about 12 to about 14 carbon atoms, in both alkyl and alkyl ether sulfates. Alkyl ether sulfates are typically produced from the condensation of ethylene oxide alcohols and monohydric alcohols that have from about 8 to about 24 carbon atoms. Alcohols can be synthetic or can be derived from fats, such as coconut oil, babassu coconut oil (palm oil), tallow. In one embodiment, the alcohols are lauryl alcohol and straight chain alcohols derived from coconut oil or palm kernel oil. Such alcohols are reacted with about 0 to about 10 or about 2 to about 5 or about 3, molar proportions of ethylene oxide and the resulting mixture of the molecular species that has, for example, an average of 3 moles of ethylene oxide per mol of alcohol, is sulfated and neutralized. In one embodiment, the alkyl ether sulfate is selected from the group consisting of: sodium and ammonium salts of alkyl triethylene glycol coconut sulfate ether, alkyl triethylene glycol ether tallow sulfate, alkyl hexa35 / 68 tallow oxyethylene sulfate and mixtures thereof. . In one embodiment, the alkyl ether sulfate comprises a mixture of individual compounds, wherein the compounds in the mixture have an average alkyl chain length of about 10 to about 16 carbon atoms and an average degree of ethoxylation of about 1 to about 4 moles of ethylene oxide. Such
mixture also comprises of about in 0% about 20% in compounds of C _12-13 ; of about 60% The about 100% in compounds of C _14-15-16 ; of about 0% The about 20%, in weight of C _17-18-19 compounds; in fence 3% to fence in
30%, by weight of the compounds having an ethoxylation degree of 0; from about 45% to about 90%, by weight of the compounds having an ethoxylation degree of about 1 to about 4; from about 10% to about 25%, by weight of the compounds having an ethoxylation degree of about 4 to about 8; and from about 0.1% to about 15%, by weight of the compounds having an ethoxylation degree greater than about 8.
[092] In one embodiment, the anionic surfactant is selected from the group consisting of: ammonium lauryl sulfate, ammonium lauret sulfate, triethylamine lauryl sulfate, triethyl amine lauret sulfate, triethanolamine lauryl sulfate, lauret triethanolamine sulfate, monoethanolamine lauryl sulfate, monoethanolamine lauret sulfate, diethanolamine lauryl sulfate, lauret sulfate diethanol amine, sodium lauryl monoglideride sulfate, sodium lauryl sulfate, sodium lauret sulfate, potassyl lauryl sulfate, potassium lauryl sulphate, sodium lauryl sarcosinate, lauryl sarcoside sodium sarcosinate, lauryl sarcosine, cocoyl sarcosine, ammonium cocoyl sulfate, ammonium lauryl sulfate, sodium cocoyl sulfate, sodium lauryl sulfate, potassium cocoyl sulfate, potassium lauryl sulfate,
36/68 triethanolamine lauryl sulfate, triethanolamine lauryl sulfate, monoethanolamine cocoyl sulfate, monoethanolamine lauryl sulfate, sodium tridecyl benzene sulfonate, sodium dodecyl benzene sulfonate and combinations thereof. In addition to the sulfates, isethionates, sulfonates, sulfosuccinates described above, other possible anions for the anionic surfactant include phosphonates, phosphates and carboxylates.
[093] The composition and / or the detersive surfactant system can comprise a co-surfactant selected from the group consisting of: amphoteric surfactants, zwitterionic surfactants, cationic surfactants, non-ionic surfactants and mixtures thereof. The concentration of such co-surfactants can be from about 0.5% to about 20% or from about 1% to about 10%, by total weight of the composition. In one embodiment, the composition comprises a co-active agent selected from the group consisting of: amphoteric surfactants, zwitterionic surfactants and mixtures thereof. Some amphoteric surfactants or described in U.S al. Patents) and 5,106,609 (Bolich Jr. et al.).
[094] Amphoteric detersive surfactants suitable for use in the composition are well known in the art and include surfactants widely described as derived from secondary and tertiary aliphatic amines, in which the aliphatic radical can be a straight or branched chain, and one of the substituents aliphatics contains about 8 to about 18 carbon atoms, and one contains an anionic group, such as carboxy, sulfonate, sulfate, phosphate or phosphonate. In one embodiment, the amphoteric surfactant is
examples don't limiters in zwiterionics suitable are No. 5,104,646 (Bolich Jr. et
37/68 selected from the group consisting of: sodium cocaminopropionate, sodium cocaminodipropionate, sodium cocoanfoacetate, sodium cocoamfohydroxypropylsulfonate, sodium cocoanfo propionate, sodium cornamphopropionate, sodium lauraminopropionate, sodium lafo anhydrofluoropropylate, lauroanfo sodium, sodium cornanphopropionate, sodium laurimine dipropionate, ammonium cocaminopropionate, ammonium cocaminodipropionate, ammonium cocoanfoacetate, ammonium cocoanphopropionate, ammonium ammonium propionate, ammonium lauronium ammonium lauronium , ammonium cornanphopropionate, ammonium lauriminodipropionate, triethanolamine cocaminopropionate, triethanolamine cocaminodipropionate, triethanolamine cocoanfoacetate, triethanolamine cocoanfohydroxypropylsulfonate, triethanolamine cocoanphopropionate mine salts, cornanfopropionato triethanolamine, lauraminopropionato triethanolamine, lauroamphoacetate triethanolamine, lauroanfohidroxipropilsulfonato triethanolamine, lauroanfopropionato triethanolamine, cornanfopropionato triethanolamine, lauriminodipropionato triethanolamine, cocoanfodipropiônico acid caproanfodiacetato, disodium caproanfoadipropionato, disodium capriloanfodiacetato, disodium capriloanfodipriopionato, disodium cocoanfocarboxietilhidroxipropilsulfonato disodium, disodium cocoanphodiacetate, disodium cocoanphodipropionate, disodium dicarboxyethylocopropylenediamine, disodium lauret-5 carboxianfodiacetate,
38/68 disodium lauriminodipropionate, disodium lauroamphodipropionate, disodium lauroamphodipropionate, disodium oleoamphodipropionate, PPG-2-isodeceti-7 disodium carboxy amphioethylpropionic acid, lauraminopropionic acid, lauraminopropylic acid, lauryl amine and amine.
[095] In one embodiment, the amphoteric surfactant is a surfactant according to the following structure:
where R ¹² is a monovalent C-linked substituent, selected from the group consisting of substituted alkyl systems comprising 9 to 15 carbon atoms, unsubstituted alkyl systems comprising 9 to 15 carbon atoms, linear alkyl systems that comprise 9 to 15 carbon atoms, branched alkyl systems comprising 9 to 15 carbon atoms and unsaturated alkyl systems comprising 9 to 15 carbon atoms; R ¹³ , R ¹⁴ and R ¹⁵ are each independently selected from the group consisting of divalent linear C-linked alkyl systems, comprising 1 to 3 carbon atoms and branched divalent alkyl systems Cligged, comprising 1 to 3 carbon atoms; and M ⁺ is a monovalent counterion selected from the group consisting of sodium, ammonium and protonated triethanolamine. In one embodiment, the amphoteric surfactant is selected from the group consisting of: sodium cocoanfoacetate, sodium cocoanphodiacetate,
39/68 sodium lauroanfoacetate, sodium lauroanphodiacetate, ammonium lauroanfoacetate, ammonium cocoanfoacetate, triethanolamine lauroanfoacetate, triethanolamine cocoanfoacetate and mixtures thereof.
[096] In one embodiment, the composition comprises a zwitterionic surfactant, in which the zwitterionic surfactant is a derivative of aliphatic quaternary ammonium, phosphonium and sulfonium compounds, in which the aliphatic radicals can be straight-chain or branched-chain and in which one of the aliphatic substituents contains from about 8 to about 18 carbon atoms and one contains an anionic group such as carboxy, sulfonate, sulfate, phosphate or phosphonate. In one embodiment, the zwitterionic surfactant is selected from the group consisting of: cocamido ethyl betaine, cocamido propylamine oxide, cocamido propyl betaine, collagen hydrolyzed with cocamido propyl dimethylaminohydroxypropyl, collagen hydrolyzed with cocamido propyl dimethoxy hydroxy propylene hydroxy, hydroxy propyl, hydroxypropyl hydroxy propylene, amphopropionate starch, coco-betaine, cocohydroxy sultaine, coco / oleamidopropyl betaine, cocosultaine, lauramido propyl betaine, lauryl betaine, lauryl hydroxy sultaine, lauryl sultaine and mixtures thereof. In one embodiment, the zwitterionic surfactant is lauryl hydroxy sultaine. In one embodiment, the zwitterionic surfactant is selected from the group consisting of: lauryl hydroxy sultaine, cocamidopropyl hydroxy sultaine, coco-betaine, coco-hydroxy sultaine, coco-sultaine, lauryl betaine, lauryl sultaine and mixtures thereof.
[097] In one modality, the co-active is selected from the zwitterionic surfactants, consists of: amphoteric, group that non-ionic surfactant surfactants
40/68 mixtures thereof. In one embodiment, the surfactant is an anionic surfactant and the composition additionally comprises a co-surfactant, in which the co-surfactant is selected from the group consisting of: zwitterionic surfactants, amphoteric surfactants, non-ionic surfactants and mixtures thereof. In one embodiment, the co-active is a nonionic surfactant selected from the group consisting of: cocamide, methyl MEA cocamide, DEA cocamide, MEA cocamide, MIPA cocamide, DEA lauramida, MEA lauramida, MIPA lauramida, DEA myristamide, MEA myristamide, MEA PIST -20 cocamide, PEG-2 cocamide, PEG-3 cocamide, PEG-4 cocamide, PEG-5 cocamide, PEG-6 cocamide, PEG-7 cocamide, PEG-3 lauramide, PEG-5 lauramide, PEG-3 oleamide, PPG -2 cocamide, PPG-2 hydroxyethyl cocamide and mixtures thereof. In one modality, the co-surfactant is a zwitterionic surfactant, in which the zwitterionic surfactant is selected from the group consisting of: lauryl hydroxy sultaine, cocamidopropyl hydroxy sultaine, coco-betaine, coco hydroxy sultaine, coco-sultaine, lauryl betaine, lauryl sultaina and mixtures thereof.
[098] In one embodiment, the composition comprises a non-ionic surfactant, in which the surfactant is an anionic surfactant and the composition additionally comprises a co-surfactant.
[099] D. Vehicle [100] According to another embodiment, the composition additionally comprises a cosmetically acceptable vehicle. In one embodiment, the vehicle is an aqueous vehicle. The quantity and chemistry of the vehicle are selected according to compatibility with other components and other desired characteristics of the product.
41/68
In one embodiment, the vehicle is selected from the group consisting of: water and aqueous solutions of lower alkyl alcohols. The lower alkyl alcohols useful in the present invention are monohydric alcohols having 1 to 6 carbons, such as ethanol and / or isopropanol. In one embodiment, the cosmetically acceptable vehicle is a cosmetically acceptable aqueous vehicle and is present at a content of about 20% to about 95% or about 60% to about 85%.
[101] The pH of the composition can be about pH 3 to about pH 9 or about pH 4 to about pH 7.
[102] E. Beneficial Agent [103] In accordance with the modalities of the present invention, the personal care composition may additionally comprise one or more beneficial agents. Exemplary benefit agents include, but are not limited to, particles, dyes, anti-dandruff actives, perfume microcapsules, gel nets and other insoluble hair or skin conditioning agents, such as skin silicones, natural oils such as sunflower oil or oil of castor.
[104] According to another embodiment, the composition may additionally comprise an anti-dandruff asset, which may be a particulate anti-dandruff asset. In one embodiment, the anti-dandruff active is selected from the group consisting of: pyridinothione salts; zinc carbonate; azoles, such as ketoconazole, econazole and elubiol; selenium sulfide; particulate sulfur; keratolytic agents such as salicylic acid; and mixtures thereof. In one embodiment, the particulate dandruff is a pyridinothole salt. Such dandruff particulate must be physically and chemically compatible with the components of the composition, and must not,
42/68 otherwise, unduly impair the stability, aesthetics, or performance of the product.
[105] Pyridinothione particles are particulate anti-dandruff actives suitable for use in the composition of the present invention. In one embodiment, the anti-dandruff active is a 1-hydroxy-2-pyridinothione salt and is in particulate form. In one embodiment, the concentration of anti-dandruff pyridinothione particulate is in the range of about 0.01% to about 5%, by weight of the composition, or about 0.1% to about 3% or about 0, 1% to about 2%. In one embodiment, pyridinothione salts are those formed from heavy metals such as zinc, tin, cadmium, magnesium, aluminum and zirconium, in general zinc, typically the zinc salt of 1-hydroxy-2pyridinothione (known as pyridination zinc) or ZPT), commonly 1-hydroxy-2-pyridinothione salts in the form of a platelet particle. In one embodiment, the platelet particle-shaped 1-hydroxy-2-pyridinothione salts have an average particle size of up to about 20 microns or up to about 5 microns or up to about 2.5 microns. Salts formed from other cations, such as sodium, may also be suitable. Anti-dandruff pyridinothione actives are described, for example, in US Patent No. 2,809,971; US patent No. 3,236,733; US patent No. 3,753,196; US patent No. 3,761,418; US patent 4,345,080; US patent 4,323,683; US patent 4,379,753; and in US Patent No. 4,470,982.
[106] In one embodiment, in addition to the anti-dandruff active selected from polyvalent pyrithione metal salts, the composition additionally comprises one or more antifungal and / or antimicrobial actives. In one mode, the
43/68 antimicrobial active is selected from the group consisting of: coal tar, charcoal, Whitfield ointment, Castellani tincture, aluminum chloride, gentian violet, octopirox (pyroctone olamine), cyclopyrox olamine, undecylenic acid and its metal salts, potassium permanganate, selenium sulfide, sodium thiosulfate, propylene glycol, bitter orange oil, urea preparations, griseofulvin, 8-hydroxy quinoline cycloquinol, thiobendazole, thiocarbamates, haloprogine, polyenes, pyridone hydroxide, morpholine, benzyl allylamines (such as terbinafine), tea tree oil, clove leaf oil, coriander, palmarosa, berberine, thymus, cinnamon oil, cinnamic aldehyde, citronellic acid, hinocytol, pale ichthyol, Sensiva SC-50, Elestab HP -100, azelaic acid, liticase, iodopropynyl butyl carbamate (IPBC), isothiazalinones such as octyl isothiazalinone and azoles, as well as combinations of these substances. In one embodiment, the antimicrobial is selected from the group consisting of: itraconazole, ketoconazole, selenium sulfide, coal tar and mixtures thereof.
[107] In one embodiment, azole antimicrobials are an imidazole selected from the group consisting of: benzimidazole, benzothiazole, bifonazole, butaconazole nitrate, climbazole, clotrimazole, croconazole, eberconazole, econazole, elubiol, fenticonazole, fluczazole, fluczazole, fluconazole, fluconazole, fluconazole, fluconazole, fluconazole, fluconazole , ketoconazole, lanoconazole, metronidazole, miconazole, neticonazole, omoconazole, oxiconazole nitrate, sertaconazole, sulconazole nitrate, tioconazole, thiazole and mixtures thereof, or azole antimicrobials are a triazole selected from the group consisting of: terconazol mixtures thereof. When present in
44/68 composition, the azole antimicrobial active is included in an amount from about 0.01% to about 5% or from about 0.1% to about 3% or from about 0.3% to about of 2%, by total weight of the composition. In one embodiment, the azole antimicrobial asset is ketoconazole. In one embodiment, the antimicrobial active ingredient alone is ketoconazole.
[108] The present invention can also comprise a combination of antimicrobial assets. In one embodiment, a combination of antimicrobial actives is selected from the group of combinations consisting of: octopirox and zinc pyrithione, pine and sulfur tar, salicylic acid and zinc pyrithione, salicylic acid and elubiol, zinc pyrithione and elubiol, zinc pyrithione and climbasol , octopirox and climbasol, salicylic acid and octopirox and mixtures thereof.
[109] In one embodiment, the composition comprises an effective amount of a layered material containing zinc. In one embodiment, the composition comprises from about 0.001% to about 10% or from about 0.01% to about 7% or from about 0.1% to about 5% of a layered material containing zinc , in total weight of the composition.
[110] Layered materials containing zinc may be those with crystal growth occurring mainly in two dimensions. It is conventional to describe layered structures as not just those
in which everyone the atoms are incorporated in layers well-defined, but also those in which there is ions or molecules between at layers , called ions in gallery
(A.F. Wells Structural Inorganic Chemistry Clarendon Press, 1975). Zinc-containing layered materials (ZLMs) may have zinc embedded in the layers and / or be components of gallery ions. The following classes of
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ZLMs represent relatively common examples from the general category and are not intended to limit the broader scope of materials that fit that definition.
[111] Many ZLMs occur naturally as minerals. In one embodiment, the ZLM is selected from the group consisting of: hydrozincite (zinc carbonate hydroxide), basic zinc carbonate, auricalcite (copper and zinc carbonate hydroxide), rosesite (copper-zinc carbonate hydroxide) and mixtures thereof. Related zinc-containing minerals can also be included in the composition. Natural ZLMs can also occur as anionic layer species, such as clay-type minerals (eg, phyllosilicates) contain zinc gallery ions resulting from ion exchange. All of these natural materials can also be obtained synthetically or formed in situ in a composition or during a production process.
[112] Another common class of ZLMs that is often, but not always, synthetic is double layered hydroxides. In one embodiment, ZLM is a double layered hydroxide for the formula [M ² + 1-xM ³ + x (OH) ₂ ] ^x + A ^m- x / _m ^ nH ₂ O in which some or all of the ions divalents (M) are zinc ions (Crepaldi, EL, Pava, PC, Tronto, J, Valim, JB J. Colloid Interfac. Sci. 2002, 248, 429 to 442).
[113] Yet another class of ZLMs can be prepared called double hydroxy salts (Morioka, H., Tagaya, H.,
Karasu, M, Kadokawa, J, Chiba, K Inorg. Chem. 1999, 38,
4211 to 4216). In one embodiment, ZLM is a double hydroxy salt according to the formula [M ²⁺ 1-xM ²⁺ 1 + x (OH) _{3 (1-y)} ] ⁺ A ⁿ 2+ (i = _3y ) / _n -nH ₂ O, where the two metal ions (M) can be the same or different. If they are equal and represented by zinc, the formula is simplified to [Zn1 + x (OH) 2] ^{2x +} 2x
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A-nH ₂ O. This last formula represents (where x = 0.4) materials such as zinc hydroxychloride and zinc hydroxynitrate. In one embodiment, the ZLM is zinc hydroxychloride and / or zinc hydroxynitrate. These are related to hydrozincite as well, with the divalent anion replacing the monovalent anion. These materials can also be formed in situ in a composition or during a production process.
[114] In one embodiment, the composition comprises basic zinc carbonate. Commercially available basic zinc carbonate sources include Basic Zinc Carbonate (Cater Chemicals: Bensenville, IL, USA), Zinc Carbonate (Shepherd Chemicals: Norwood, OH, USA), Zinc Carbonate (CPS Union Corp .: New York, NY, USA), Zinc Carbonate (Elementis Pigments: Durham, United Kingdom), and Zinc Carbonate AC (Bruggemann Chemical: Newtown Square, PA, USA). Basic zinc carbonate, which can also be commercially called zinc carbonate or basic zinc carbonate or hydroxy zinc carbonate is a synthetic version consisting of materials similar to naturally occurring hydrozincite. The idealized stoichiometry is represented by Zn5 (OH) 6 (CO3) 2, but the actual stoichiometric ratios may vary slightly and other impurities may be incorporated into the crystalline lattice.
[115] In embodiments that have a layered material containing zinc and a pyrithione or a polyvalent metallic pyrithione salt, the ratio of layered material that contains zinc and pyrithione or polyvalent metallic pyrithione salt is about 5: 100 to 10: 1 or about 2:10 to about 5: 1 or about 1: 2 to about 3: 1.
47/68 [116] The deposition of anti-dandruff active on the scalp is at least about 1 microgram / cm ² . The deposition on the scalp of the anti-dandruff active is important in order to ensure that the anti-dandruff active reaches the scalp where it is able to perform its function. In one embodiment, the deposition of anti-dandruff active on the scalp is at least about 1.5 micrograms / cm ² or at least about 2.5 micrograms / cm ² or at least about 3 micrograms / cm ² or at least about 4 micrograms / cm ² or at least about micrograms / cm ² or at least about 7 micrograms / cm ² or at least about 8 micrograms / cm ² or at least about micrograms / cm ² or at least about 10 micrograms / cm ² . The deposition on the scalp of the anti-dandruff active is measured by washing the hair of the individuals with a composition that comprises an anti-dandruff active, for example, a composition according to the present invention, by a cosmetic expert trained in accordance with a conventional washing protocol. . The hair is then parted in an area of the scalp to allow an open glass cylinder to be kept on the surface while an aliquot of a solution for extraction is added and stirred before recovery and analytical determination of the content of the anti-dandruff active by conventional methodology, such as HPLC.
[117] F. Other components [118] The personal care composition of the present invention may also additionally comprise any suitable optional ingredients as desired. Such optional ingredients must be physically and chemically compatible with the components of the composition and must not otherwise unduly impair the stability, aesthetics, or performance of the product. The CTFA Cosmetic
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Ingredient Handbook, 10th Edition (published by Cosmetic, Toiletry, and Fragrance Association, Inc., Washington, DC) (2004) (later in this document CTFA), describes a wide variety of non - limiting materials that can be added to composition of the present invention.
[119] In accordance with another embodiment of the invention, a method for making a personal care composition comprising an anionic surfactant, a cationic conditioning polymer and a silicone emulsion is provided. The method includes (i) combining the anionic surfactant and the cationic conditioning polymer in water, and (ii) combining a silicone emulsion and an aqueous composition, which includes a product from step (i) to form the personal care composition.
[120] In one embodiment, the personal care composition has a viscosity of 4,000 cP to 20,000 cP or about 6,000 cP to about 12,000 cP or about 8,000 cP to about 11,000 cP, measured at 26.6 ° C with a Brookfield R / S Plus rheometer at 2 s ^-1 . cP stands for centipoises.
[121] Personal care compositions according to the principles of the present invention form particles of coacervate upon dilution in water. The composition can be diluted so that the weight ratio of the composition: water is about 1:50. According to one aspect of the coacervate, the percentage of coacervate particles with a small flake size greater than about 20 microns is about 1% to about 60%. In one embodiment, the percentage of coacervate particles with a small flake size greater than about 20 microns is about 1% to about 50% or about 1% to about 40% or about 1% about 30% or about 2% to 25%; or
49/68 of about 5% to about 20% of about 5% to about 15%. The small flake size is measured after preparing a 1:50 dilution (by weight) of the composition with water.
[122] The small flake size is measured using the Lasentec method: In a suitable mixing vessel, a 1: 9 dilution of the composition is created in distilled water at room temperature and mixed for 5 minutes at 250 rpm. Using a transfer pump, the peristaltic distilled ambient water in the mixing vessel at a rate of 100 g / min results in a final 1:50 part dilution of the composition to distilled water After a 10 min equilibration period, a method of Lasentec Focused Beam (FBRM) reflectance [model S400A available from Mettler Toledo
Corp] can be used to determine the small flake size and quantity as measured by string length and particle count / second (count per sec).
[123] The viscosity of the coacervate particles is measured through the tightening flow resulting in a tightening flow viscosity. The coacervate is prepared and isolated by rheological testing as follows: A well-mixed 1:50 dilution of the composition in distilled water is prepared at room temperature in an amount to produce a coacervate pellet of at least 3 grams after centrifugation at 4500 rpm for 30 min. The supernatant liquid is decanted and discarded and the pellet of the coacervate collected. A second centrifugation step is required for 15 minutes at 9100 rpm to ensure sample integrity prior to measurement. Any remaining supernatant liquid is removed without disturbing the coacervate pellet collected at the bottom of the container.
50/68 [124] In the tightening flow experiment, the coacervate to be tested is loaded between two parallel plates of radius R in a conventional rheometer (for example, parallel plates of 25 mm in a TA AR2000) balanced at 25 ° C . Sufficient coacervate is added to completely fill a 1000 micron gap and any excess material is cut before starting the test. The sample is allowed to stand at load voltages for 1 minute. The top plate is lowered at a constant linear speed as the gap is decreased. During this process, the normal force exerted by the sample on the bottom plate is measured by the rheometer. Typical linear speeds used for the tightening experiment are 10 or 100 microns / second. The span is decreased from 1000 microns until a final 100 micron span is reached or until a normal force reaches the maximum tolerance of the instrument.
[125] The measured force, F, and span, h, are further analyzed to obtain a more traditional viscosity as opposed to the shape of the shear rate. The analysis of the tightening flow between parallel plates for Newtonian and various non-Newtonian materials has been published in the literature (J. of Non-Newtonian Fluid Mechanics, 132
. a power law model is selected O coacervate, since he describe O in viscosity in the region there linear. The law of power K, the consistency of the law in
power, and n, the exponent of the power law are determined from the corresponding expression for force as a function of the span under constant area, constant linear speed, non-slip tightening flow (J. of Non-Newtonian Fluid Mechanics, 132
51/68 (2005) 1 to 27). The nonlinear force as opposed to the span expression is first linearized by taking the natural logarithm of both sides of the expression. The power law parameters K and n are then obtained from the slope and intercepted by an adjustment for the linear region of ln (Force) versus ln (span) and with the use of known constants from experimental conditions. Using these values of K and n, the tightening flow viscosity η can be calculated at a specific shear rate K using the model power law:
η - K · [126] This relationship is used to determine the tightening flow viscosity at a shear rate of 100 s ” ¹ .
[127] Coacervate particles have a tightening flow viscosity of about 1 Pa.s to about 100 Pa.s or about 1 Pa.s to about 80 Pa.s or about 2 Pa.s to about 60 Pa.s or about 3 Pa.s about 50 Pa.s or about 4 Pa.s about 40 Pa.s or about
Pa.sa about 30 Pa.s or ca. 10 Pa.sa about 20 Pa.s, measured at 25 ° C with a TA AR2000 rheometer at 100 s ” ¹ . Pa.s refers to Pascal seconds. The tightness flow viscosity values of the coacervate particle refer to when the composition was diluted 1 part in 50 with water.
[128] In another embodiment, a method for achieving the enhanced tactile feel of the hair is provided. The method includes applying a personal care composition to the hair according to the first aspect. According to one aspect of the method, an average consumer acceptance rate on a scale of 1 to 100, 60 or more, or 65 or more, or
52/68 or more, or 75 or more, or 80 or more, or 85 or more, is achieved. In order to obtain average values of consumer acceptance, the compositions are evaluated by consumer panels ranging in size from 10 to 400 people, for example, 16 to 310 people. Examiners are invited to use the composition as their only shampoo over a period of time ranging from 3 days to 4 weeks. After use, examiners are asked to evaluate different attributes of the composition and their experience of use on a 5-point scale. For the purpose of numerical analysis, responses were converted to a 100-point scale and the average consumer acceptance rate calculated.
[129] According to a first aspect, a personal care composition is provided, wherein the composition comprises a) an anionic surfactant; b) a cationic conditioning polymer is selected from at least one of i) a cationic guar gum polymer, in which the cationic guar gum polymer has an average weight molecular weight less than about 1 million g / mol, and in that the cationic guar gum polymer has a charge density of about 0.1 meq / g to about 2.5 meq / g; or ii) a cationic copolymer of an acrylamide monomer and a cationic monomer, wherein the copolymer has a charge density of about 1.0 meq / g to about 3.0 meq / g; and c) a silicone emulsion comprising an insoluble polysiloxane having a general formula of R ¹ - [O-SiR ₂ ] _n -OR ¹ ', where n is an integer, R is a substituted C1 to C10 alkyl or aryl or unsubstituted, and R ¹ is a hydrogen or a substituted or unsubstituted C1 to C10 alkyl or aryl, where the insoluble polysiloxane has an average molecular weight within the range of about 50,000 to about
53/68 of 500,000 g / mol, and an average particle size within the range of about 30 nm to about 10 pm. The total content of a cyclic polysiloxane in the silicone emulsion is present in an amount less than about 2.5% by weight, based on the total weight of the insoluble polysiloxane and the cyclic polysiloxane, in which the cyclic polysiloxane has a general formula :
R
The —- Si111 where R is as defined above, where m is 4 or 5.
[130] According to a second aspect, a personal care composition is provided according to the first aspect, in which the composition forms coacervate particles upon dilution with water, and in which a percentage of the coacervate particles with a size small flake greater than about 20 microns is about 1% to about 60% by diluting with water to a 50: 1 dilution.
[131] According to a third aspect, a method for treating hair which comprises applying to the hair a composition according to the first aspect or the second aspect.
[132] According to a fourth aspect, a method to achieve an improved tactile sensation of the hair, which comprises applying to the hair a composition according to the first aspect or the second aspect.
[133] The following examples illustrate the present invention. The exemplified compositions can be prepared using conventional formulation and mixing techniques. It should be understood that other modifications of the present invention,
54/68 within the practice of those skilled in the art of formulating hair care products, can be carried out without deviating from the character and scope of this invention. All parts, percentages and reasons for this document are expressed in weight, unless otherwise specified. Some components can be obtained from suppliers in the form of diluted solutions. The fixed amount reflects the weight percent of the active material, unless otherwise specified.
[134] Examples [135] Exemplary personal care compositions containing insoluble polysiloxanes [136] Personal care compositions according to the principles of this description can be prepared as shown in Table 1.
[137] Table 1
Personal Care Compositions
Component / example 1 2 3 4 5 6 7 8 1 cationic guar gum polymer 0.3 0.3 0.3 0.3 0.3 2 mixture of cationic guar gum and copolymer 0.25 0.4 0.6 3 cationic copolymer 0.045 0.045 0.045 0.045 0.045 4 sodium lauret-3 sulfate (SLE3S) 5 sodium lauret-1 sulfate (SLE1S) 12.5 12.5 12.5 12.5 12.5 10.5 10.5 10.5 6 Sodium Lauryl Sulfate (RFS) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 7 Cocamido Propyl Betaine 1.5 1.5 1.5 1.5 1.5 8 Cocamide MEA 1.0 1.0 1.0 9 lauryl hydroxy sultaine 1.0 1.0 1.0
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10 Dimethicone 1.0 - - - 11 Dimethicone - 1.0 - 1.0 - 1.0 1.0 1.0 12 Dimethicone - - 1.0 13 Zinc pyrithione 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 14 Zinc carbonate 1.61 1.61 1.61 1.61 1.61 1.61 1.61 1.61 15 Gel net - - - 18.18 16 Glycol distearate 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 17 preservative 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 18 Sodium benzoate 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 19 Fragrance 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 20 6N HCl Q.S. Q.S. Q.S. Q.S. Q.S. Q.S. Q.S. Q.S. 21 Sodium chloride Q.S. Q.S. Q.S. Q.S. Q.S. Q.S. Q.S. Q.S. 22 Water Q.S. Q.S. Q.S. Q.S. Q.S. Q.S. Q.S. Q.S.
[13 8] Caption:
1) Jaguar C500 available from Rhodia; molecular weight 500,000 cd 0.8 meq / g 2) A mixture disposed next to Ashland, which is a mixture of guar hydroxy propyl chloride triamonium 95: 5 (PM500,000 g / mol; charge density 1.1 meq / g) for AM / APTAC (PM 1.1 million g / mol; charge density 1.8 meq / g). 3) PQ-76 available from Rhodia; molecular weight 1,000,000 cd 1.6 meq / g 4) lauret-3 sodium sulfate disposed of with the Stepan Company 5) lauret-1 sodium sulfate disposed of with the Stepan Company 6) sodium lauryl sulfate disposed of with the Stepan Company 7) amphosol HCA arranged with the Stepan Company 8) Ninol COMF arranged with the Stepan Company 9) Mackam LHS arranged with Rhodia 10) Viscasil 330M arranged with Momentive Performance Materials; 0.33 m ² / s (330,000 cSt) 11) BELSIL DM arranged with Wacker Silicones 12) DC2-1870 arranged with Dow Corning 13) ZPT arranged with Arch Chemical 14) zinc carbonate disposed of with the Bruggeman Group 15) Gel Network arranged with Procter & Gamble (see details below) 16) EGDS arranged with the Golschmidt Chemical Company 17) Kathon CG willing with Akzo Nobel
56/68 [139] Preparation of the composition: A vessel is loaded with about three quarters of the amount of deionized water. The cationic guar gum polymer is added to the vessel under agitation to completely disperse / hydrate the polymer. The anionic surfactant is added to the aqueous composition with controlled agitation in order to avoid aeration. Under continuous stirring, the pH is adjusted with HCl and the remaining components are added sequentially with optional pH adjustment to each other. The viscosity and pH of the composition are measured and adjusted to their desired values by adding salt and acid, respectively.
[14 0] Preparation of the gel net: A vessel is loaded with water and the water is heated to about 74 ° C. Cetyl alcohol, stearyl alcohol and the SLES surfactant are added to the heated water. After incorporation, the resulting mixture is passed through a heat exchanger where the mixture is cooled to about 35 ° C. Upon cooling, the fatty alcohols and the surfactant are crystallized to form a crystalline gel network. Table 2 provides the components and their respective amounts for the composition of the gel network.
[141] Table 2 [142] Components of the gel network
Ingredient % by weight Water 78.27% Cetyl alcohol 4.18% Stearyl alcohol 7.52% Lauret-3 sodium sulfate (28% active) 10.00% 5-Chlorine-2-methyl-4-isothiazoline-3-one, Kathon CG 0.03%
57/68 [143] Table 3 presents data on the effect of salt concentration on the small flake size of the coacervate of exemplary compositions 2 and 3. Similarly, Table 4 shows data on the effect of salt concentration on the viscosity of tightening flow of the coacervate particles of compositions 2 and 3. And Table 5 presents the data of the effect of the D4 / D5 concentration on the salt concentration necessary to reach the target viscosity of 9,000 cps.
[144] Table 3 [145] Comparison between small flake size based on salt concentration
Percentage Composition of 2% Composition of 3% from NaCl larger flakes larger flakes added that 20 microns that 20 microns 0.0 2.29 3.03 0.1 2.26 3.00 0.2 2.26 3.38 0.3 2.62 3.65 0.4 2.92 3.90 0.5 4.71 5.03 1.0 8.59 14.46 1.5 16.21 31.35
[146] As shown in Table 3, increasing the salt content of the composition affects an increase in the small flake size of the resulting coacervate particles, which are formed by diluting the composition with water (1 part of the composition to 50 parts of water ).
[147] Figures 1 to 5 are graphs of the rope length
Lasentec in microns (X-axis) versus the Lasentec particle count per second (Y-axis), where the
58/68 symbols distinguish the specified weight percentage of NaCl added to the composition.
[148] Figure 1 shows the Lasentec small flake size profile for composition 3 without salt and subsequent 0.1% by weight of NaCl additions up to 0.5% by weight. As shown, the lower NaCl contents (up to 0.4%) showed very little effect of the small floc size of the coacervate. However, a movement towards a higher concentration of larger coacervate particles is observed at 0.5% NaCl. Figure 2 shows a small flake size profile of Lasentec for the formulation of composition 3 without salt and subsequent 0.5% by weight of NaCl additions to 1.5% NaCl. As shown, NaCl additions greater than 0.5%, compared to the example of null salt, have a substantial impact on the small floc size of the coacervate. The movement towards a higher concentration of larger coacervate flakes is observed as the NaCl concentration is increased. This small flake size salt effect is a result of the high D4 / D5 content of the insoluble silicone microemulsion, which requires higher levels of salt to achieve a consumer-friendly shampoo viscosity.
[149] Figure 3 shows Lasentec's small flake size profile for composition 2 without salt and subsequent 0.1% by weight of NaCl additions up to 0.5% by weight. As shown, the lower NaCl contents (up to 0.4%) showed very little effect of the small floc size of the coacervate. However, a movement towards a higher concentration of larger coacervate particles is observed at 0.5% NaCl. Figure 4 shows the Lasentec small flake size profile of composition 2 without salt and subsequent
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0.5% by weight of NaCl additions to 1.5% NaCl. As shown, NaCl additions greater than 0.5%, compared to the example of null salt, have a substantial impact on the small floc size of the coacervate. The movement towards a higher concentration of larger coacervate flakes is observed as the NaCl concentration is increased.
[150] As shown in Table 4, increasing the salt content of the composition affects an increase in the tightening flow viscosity of the resulting coacervate particles, which are formed by diluting the composition with water (1 part of the composition to 50 parts of Water).
[151] Table 4 [152] Comparison between tightening flow viscosity with 15 basis salt concentration
Percentage of NaCladded Viscosity of composition 2 coacervate at 100 s-1, Pa.s Viscosity of composition 3 coacervate at 100 s-1, Pa.s 0.0 40.47 40.47 0.1 42.44 85.19 0.2 40.03 49.28 0.3 33.19 56.90 0.4 30.29 75.98 0.5 24.06 45.70 1.0 39.15 61.01 1.5 35.72 50.30
[153] As shown in Table 5, the limiter of the lower D4 and D5 levels of the amount of salt needs to reach a target viscosity of 9,000 cPs for the composition. As shown by a comparison between Figures 1 and 3, at low concentrations of NaCl (<0.5% in
60/68 weight), the small flake size is similar between upper and lower D4 / D5 containing the compositions. However, as shown in Figure 5, at a consumer-preferred compositional viscosity of 9,000 cP at 2 s-1, a significant increase in small flake size is seen in composition 3, while composition 2 shows an increase in small flake size much smaller. The less drastic change in the small flake size of the coacervate of composition 2, even at higher NaCl concentrations, is attributed to the lower contribution of D4 / D5 to the composition vis-à-vis composition 3, which has levels of D4 / D5 about three times greater than that of composition 2.
[154] Table 5 [155] The effect of the D4 / D5 concentration on the salt concentration required to achieve the target viscosity
Silicone Emulsion Comp 1 Comp 2 Comp 3 Comp 5 Silicone Type - dimethicone dimethicone dimethicone Silicone particle size (nm) - 100 30 28,000 Molecular weight of silicone (g / mol) - 150,000 70,000 200,000 * percent of D4 / D5 - 0.5 /, 2 1.6 /, 4 <1.0 / <2.0 Percentage of NaCl to reach 9000 cPs at 2s ^-1 0.5 0.5 1.5 0.3 Percentage of coacervate flake greater than20 microns 3.0 8.6 14.5 4.4 Coacervate tightening flow viscosity in Pa.s at 100 s-1 105.6 39.2 61 57.3 Average consumer acceptance rating and completion (on a scale of 1 to 100) Good (80) Regular (60)
* D4 is octamethylcyclotetrassiloxane, percentage based on the weight of the emulsion.
61/68 * D5 is decamethylcyclotetrasiloxane, percentage based on the weight of the emulsion.
[156] In Table 5, an observable effect of reduced salt concentration is the retention of the smaller small flake size, as indicated by the low percentage of coacervate particles larger than 20 microns. Unexpectedly, the smaller small flake size, together with a lower coacervate tightening flow viscosity, provides a synergistic effect and thus produces an increased consumer acceptance rating. Notably, when the D4 content is around 0.5% by weight, exceptionally good consumer acceptance has been achieved.
[157] Clauses [158] The following clauses are part of the description.
1. Composition for personal care, characterized by the fact of understanding:
a) an anionic surfactant;
b) a cationic conditioning polymer selected from at least one of:
i) a cationic guar gum polymer, in which the cationic guar gum polymer has an average molecular weight of less than 1 million g / mol, or less than 900 thousand g / mol or from about 150 thousand to about 800 thousand g / mol, and wherein the cationic guar gum polymer has a charge density of about 0.1 meq / g to 2.5 meq / g; or ii) a cationic copolymer of an acrylamide monomer and a cationic monomer, wherein the
62/68 copolymer has a charge density of about 1.0 meq / g to 3.0 meq / g; and
c) a silicone emulsion comprising an insoluble polysiloxane having a general formula of R ¹ - [O-Sil · ®] n-OR ¹ , where n is an integer, R is a substituted C 1 to C 10 alkyl or aryl or unsubstituted, and R ¹ is a hydrogen or a C ₄ to C ₆ substituted or unsubstituted alkyl or aryl, where the insoluble polysiloxane has an average molecular weight within the range of 50,000 to 500,000 g / mol or about 60,000 to about 400,000 or about 75,000 to about 300,000 or about 100,000 to about 200,000, and where the insoluble polysiloxane has an average particle size within the range of 30 nm to 10 microns, or 40 nm to 5 micron, or from 50 nm to 1 micron, or from 75 nm to 500 nm; and where a total content of a cyclic polysiloxane that has a general formula:
RRO — Si— is present in the silicone emulsion in an amount less than 2.5% by weight, based on the total weight of insoluble polysiloxane and cyclic polysiloxane, where R is as defined above, and where m is 4 or 5.
2. Composition for personal care, according to clause 1, characterized by the fact that
63/68 the composition is capable of forming coacervate particles upon dilution with water, and in which if the personal care composition is diluted 1 in 50 with water, the percentage of coacervado particles with a small flake size greater than 20 microns is 1% to 60%, or 1% to 50%, or 1% to 40%, or 1% to 30%, or 2% to 25%; or from 5% to 20%, or from 5% to 15%.
3. Personal care composition, according to any of the preceding clauses, characterized by the fact that the coacervate particles have a tightening viscosity of 1 Pa.s to 100 Pa.s, or 1 Pa.s to
80 Pa.s, or in 2 Pa. S to 60 Pa.s, or in 3 Pa.s The 50 Pa.s, or in 4 Pa.s to 40 Pa.s, or in 5 Pa.s The 30 Pa.s, or in 10 Pan. s to 20 Pa.s, measure to 25 ° C
with a TA AR2000 rheometer at 100 s ^-1 .
4. Personal care composition, according to any of the preceding clauses, characterized by the fact that R is methyl and R ¹ is hydrogen.
5. Personal care composition, according to any of the preceding clauses, characterized by the fact that m is 4 and the total content of a cyclic polysiloxane is less than 1.5%, by weight, or less than 1.0% , by weight.
6. Personal care composition, according to any of the preceding clauses, characterized by the fact that insoluble polysiloxane is present in the composition in an amount within the range of 0.1%, by weight at
64/68% by weight or 0.2% by weight at 2.5% by weight or 0.4% by weight at 2.0% by weight or 0.5% , by weight at 1.5%, by weight based on the total weight of the composition.
7. Personal care composition, according to any of the preceding clauses, characterized by the fact that the silicone emulsion has a viscosity of up to 500,000 cPs, or from 100,000 cPs to 200,000 cPs, measured at 30 ° C with a Brookfield viscometer with spindle 6 at 2.5 rpm.
8. Personal care composition, according to
with any an of clauses precedents, characterized fur fact in that the polysiloxane insoluble has one size medium particle
(D50) within the range of 50 nm to 150 nm.
9. Composition for personal care, according to any of the preceding clauses, characterized by the fact that it also comprises at least one of:
(a) an anti-dandruff asset;
(b) a cosmetically acceptable vehicle;
(c) a benefit agent.
10. Personal care composition, according to any of the preceding clauses, characterized by the fact that the personal care composition comprises an anti-dandruff asset, and in which the anti-dandruff asset is selected from the group consisting of: antimicrobial assets, salts of pyridinothione, azoles, selenium sulfide, particulate sulfur, keratolytic acid,
65/68 salicylic, octopirox (pyroctone olamine), coal tar and mixtures thereof.
11. Composition for personal care, according to any of the preceding clauses, characterized by the fact that it also comprises a layered material containing zinc selected from the group consisting of basic zinc carbonate, carbonate hydroxide, hydrozincite, carbonate hydroxide copper and zinc, auricalcite, zinc and copper carbonate hydroxide, rosesite, zinc ions containing phyllosilicate, double layered hydroxide, double hydroxy salts and mixtures thereof.
12. Personal care composition, according to any of the preceding clauses, characterized by the fact that the personal care composition comprises cationic guar gum polymer and cationic copolymer.
13. Use of the personal care composition as defined in any of the preceding clauses, for hair treatment or to achieve improved hair tactile sensation.
14. Method for hair treatment or to achieve an improved tactile sensation of the hair, characterized by the fact that the method comprises applying to the hair the composition for personal care as defined in any of clauses 1 to 12.
15. Method for making a personal care composition characterized by the fact that it comprises an anionic surfactant, a
66/68 cationic conditioning polymer and a silicone emulsion, the method comprising:
(i) combining the anionic surfactant and the cationic conditioning polymer in water, in which the cationic conditioning polymer is selected from at least one of a cationic guar gum polymer, in which the cationic guar gum polymer has a weight molecular weight medium less than 1 million g / mol, and where the cationic guar gum polymer has a charge density of about 0.1 meq / g to 2.5 meq / g; or a cationic copolymer of an acrylamide monomer and a cationic monomer, wherein the copolymer has a charge density of about 1 meq / g to 3 meq / g; and (ii) combining a silicone emulsion and an aqueous composition, which includes a product from step (i) to form the personal care composition, the silicone emulsion comprising an insoluble polysiloxane that has a general formula of R ¹ - [ O-SiR ₂ ] _n -OR ¹ , where n is an integer, R is a substituted or unsubstituted C1 to C10 alkyl or aryl, and R ¹ is a substituted or unsubstituted hydrogen or C1 to C10 alkyl or aryl , where insoluble polysiloxane has a molecular weight
medium inside gives banner in 50,000 to 500,000 g / mol or of fence in 60,000 The about 400,000 or of fence of 75. 000 about 300,000 or fence of 100,000 The fence in 200,000, is at that the
67/68 insoluble polysiloxane has an average particle size within the range of 30 nm to 10 microns, or 40 nm to 5 microns, or 50 nm to 1 micron, or 75 nm to 500 nm; and where a total content of a cyclic polysiloxane that having a general formula
RRO — Si— is present in the silicone emulsion in an amount less than 2.5% by weight, based on the total weight of the insoluble polysiloxanes and cyclic polysiloxane, where R is as defined above, where m is 4 or 5.
16. Method for making a personal care composition, according to clause 15, characterized by the fact that the personal care composition is capable of forming particles of coacervate upon dilution with water, and in which the composition is diluted 1 in 50 with water, the percentage of coacervate particles with a small flake size greater than 20 microns is 1% to 60%, or 1% to
50%, or from 1% to 40%, or from 1% to 30%, or from 2% to
25%; or 5% to 20%, or 5% to 15.
[159] The dimensions and values presented in the present invention should not be understood as being strictly limited to the exact numerical values mentioned. Instead, unless otherwise specified, each of these dimensions is intended to
68/68 mean both the mentioned value and a range of functionally equivalent values around that value. For example, a dimension shown as 40 mm is intended to mean about 40 mm.
[160] Each of the documents cited in the present invention, including any cross-reference, related patent or patent application, is hereby incorporated in its entirety, by way of reference, unless expressly excluded or otherwise limited. The mention of any document is not an admission that it is prior art in relation to any invention presented or claimed in this document, or that it, alone or in any combination with any other reference or references, teaches, suggest or present any invention like that. In addition, if there is a conflict between any meaning or definition of a term mentioned in that document and any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document will take precedence.
[161] Although specific embodiments of the present invention have been illustrated and described, it should be obvious to those skilled in the art that various other changes and modifications can be made without departing from the character and scope of the invention. Therefore, it is intended to cover in the appended claims all such changes and modifications that fall within the scope of the present invention.
1/7 personal care

权利要求:
Claims (15)
[1]
1. Composition for characterized by the fact of understanding:
a) an anionic surfactant;
b) a cationic conditioning polymer selected from at least one among
i) a cationic guar gum polymer, in which the cationic guar gum polymer has an average molecular weight less than 1 million g / mol, and in which the cationic guar gum polymer has a charge density of about 0, 1 meq / g to 2.5 meq / g; or ii) a cationic copolymer of an acrylamide monomer and a cationic monomer, wherein the copolymer has a charge density of about 1.0 meq / g to 3.0 meq / g; and
c) a silicone emulsion comprising an insoluble polysiloxane having a general formula of R ¹ - [0SiR2] n-OR ¹ , where n is an integer, R is a substituted or unsubstituted C 1 to C 1 alkyl or aryl, preferably where R is methyl, and R ¹ is hydrogen or a substituted or unsubstituted C1 to C1 alkyl or aryl, preferably where R ¹ is hydrogen, where insoluble polysiloxane has an average molecular weight within the range of 50,000 to 500,000 g / mol, and an average particle size within the range of 30 nm to 10 pm, preferably where insoluble polysiloxane is present in the composition in an amount within the range of 0.1% by weight to 3% by weight , based on the total weight of the composition, where a total content of a cyclic polysiloxane having a general formula:
R R
111
[2]
2/7 is present in the silicone emulsion in an amount less than 2.5% by weight, based on the total weight of the insoluble polysiloxane and the cyclic polysiloxane, where R is as defined above, where m is 4 or 5, and where the composition forms coacervate particles upon dilution with water, and where a percentage of the coacervate particles with a small flake size greater than 20 microns is 1% to 60% upon dilution in water.
2. Personal care composition according to any of the preceding claims, characterized in that the coacervate particles have a tightening flow viscosity from 1 Pa.s to 100 Pa.s.
[3]
3. Personal care composition according to any of the preceding claims,
characterized by the fact that m it's 4 and the total content of one polysiloxane cyclic is less what 1.5 % by weight, in preference where m is 4 and O content total of one polysiloxane cyclic is less than 1.0 % in Weight.
[4]
4. Personal care composition according to any of the preceding claims, characterized by the fact that the silicone emulsion has a viscosity of up to 500,000 cPs, preferably where the viscosity is within the range of 100,000 cPs to 200,000 cPs.
[5]
5. Personal care composition according to any of the preceding claims, characterized by the fact that the insoluble polysiloxane has an average particle size (D50) within the range of 50 nm to 150 nm.
3/7
[6]
6. Personal care composition, according to any of the preceding claims, characterized by the fact that it also comprises:
d) an anti-dandruff asset;
e) a cosmetically acceptable vehicle.
[7]
7. Personal care composition according to any of the preceding claims, characterized by the fact that the anti-dandruff active ingredient is selected from the group consisting of antimicrobial actives, pyridinothione salts, azoles, selenium sulfide, particulate sulfur, keratolytic acid, salicylic acid, octopirox (pyroctone olamine), coal tar and mixtures thereof.
[8]
8. Personal care composition according to any one of the preceding claims, characterized in that it also comprises a layered material containing zinc selected from the group consisting of basic zinc carbonate, carbonate hydroxide, hydrozincite, carbonate hydroxide copper and zinc, auricalcite, zinc and copper carbonate hydroxide, rosesite, zinc ions containing phyllosilicate, double layered hydroxide, double hydroxy salts and mixtures thereof.
[9]
9. Method to achieve an improved tactile sensation of the hair characterized by the fact that it comprises applying to the hair a composition comprising:
a) an anionic surfactant;
b) a cationic conditioning polymer selected from at least one among
i) a cationic guar gum polymer, in which the cationic guar gum polymer has a molecular weight
4/7 weight average less than 1 million g / mol, and where the cationic guar gum polymer has a charge density of about 0.1 meq / g to 2.5 meq / g; or ii) a cationic copolymer of an acrylamide monomer and a cationic monomer, wherein the copolymer has a charge density of about 1.0 meq / g to 3.0 meq / g; and
c) a silicone emulsion comprising an insoluble polysiloxane having a general formula of R ¹ - [OSÍR2K-OR ¹ , where n is an integer, R is a substituted or unsubstituted C1 to C1 alkyl or aryl, and R ¹ is a hydrogen or a substituted or unsubstituted C1 to C1 alkyl or aryl, where the insoluble polysiloxane has an average molecular weight within the range of 50,000 to 500,000 g / mol, and an average particle size within the range of 30 nm to 10 pm, and where a total content of a cyclic polysiloxane having a general formula:
R R
0 — yes ^z
I is present in the silicone emulsion in an amount less than 2.5% by weight, based on the total weight of insoluble polysiloxanes and cyclic polysiloxane, R is as defined above, where m is 4 or 5, where the composition forms coacervate particles upon dilution in water, where the coacervate particles have a clamping flow viscosity of 1 Pa.sa 100 Pa.s, and where a percentage of the coacervate particles with a size of a larger small flake what
20 microns is 1% to 60%.
5/7
[10]
10. Method according to any of the preceding claims, characterized by the fact that the silicone emulsion has a viscosity of up to 500,000 cPs.
[11]
11. Method according to any of the preceding claims, characterized in that the composition comprises the cationic guar gum polymer and the cationic copolymer.
[12]
12. Method according to any of the preceding claims, characterized in that the composition additionally comprises an anti-dandruff active.
[13]
13. Method according to any one of the preceding claims, characterized by the fact that the anti-dandruff asset is selected from the group consisting of antimicrobial assets, pyridinothione salts, azoles, selenium sulfide, keratolytic sulfur, salicylic acid, olamine), coal tar and mixtures thereof.
[14]
Method according to any one of the preceding claims, characterized in that the composition further comprises a layered material containing zinc selected from the group consisting of basic zinc carbonate, zinc carbonate hydroxide, hydrozincite, carbonate hydroxide copper and zinc, auricalcite, zinc and copper carbonate hydroxide, rosesite, zinc ions containing phyllosilicate, double layered hydroxide, double hydroxy salts and mixtures thereof.
particulate, octopirox acid (pyroctone
[15]
15. Method for making a personal care composition characterized by the fact that it comprises an anionic surfactant, a cationic conditioning polymer and a silicone emulsion, the method comprising:
6/7
one monomer in 0 copolymer has The 3 meq / g; and
(i) combining the anionic surfactant and the cationic conditioning polymer in water, in which the cationic conditioning polymer is selected from at least one among a cationic guar gum polymer, in which the cationic guar gum polymer has a lower average molecular weight whereas 1 million g / mol, and the cationic guar gum polymer has a charge density of about 0.1 meq / g to 2.5 meq / g; or a cationic acrylamide copolymer and a cationic monomer, in q a charge density of about 1 meq / g to 3 meq / g; and (ii) combining a silicone emulsion and an aqueous composition, which includes a product from step (i) to form the personal care composition, the silicone emulsion comprising an insoluble polysiloxane having a general formula of R ¹ - [O -S1R2] n-OR ¹ , where n is an integer, R is a substituted or unsubstituted C 1 to C 6 alkyl or aryl, and R ¹ is a substituted or unsubstituted hydrogen or C 1 to C 6 alkyl or aryl, in that insoluble polysiloxane has an average molecular weight within the range of 50,000 to 500,000 g / mol, and an average particle size within the range of 30 nm to 10 pm, and in which a total content of a cyclic polysiloxane having a general formula
R R
O — Si ^Z
I is present in the silicone emulsion in an amount less than 2.5% by weight, based on the total weight of the
7/7 insoluble polysiloxanes and cyclic polysiloxane, where R is as defined above, where m is 4 or 5, and where the composition forms coacervate particles upon dilution in water, where the particles of
5 coacervate have a tightening flow viscosity from 1 Pa.s to 100 Pa.s, and where a percentage of the particles of the coacervate with a small flake size greater than 20 microns is from 1% to 60%.
1/5
2/5 ο
ο
X

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法律状态:
2017-08-29| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

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2017-12-12| B07D| Technical examination (opinion) related to article 229 of industrial property law|Free format text: DE ACORDO COM O ARTIGO 229-C DA LEI NO 10196/2001, QUE MODIFICOU A LEI NO 9279/96, A CONCESSAO DA PATENTE ESTA CONDICIONADA A ANUENCIA PREVIA DA ANVISA. CONSIDERANDO A APROVACAO DOS TERMOS DO PARECER NO 337/PGF/EA/2010, BEM COMO A PORTARIA INTERMINISTERIAL NO 1065 DE 24/05/2012, ENCAMINHA-SE O PRESENTE PEDIDO PARA AS PROVIDENCIAS CABIVEIS. |

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2017-12-26| B07B| Technical examination (opinion): publication cancelled|Free format text: REFERENTE AO DESPACHO 7.4 NOTIFICADO NA RPI NO 2449, DE 12/12/2017 |

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2018-03-27| B09A| Decision: intention to grant|

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2018-06-19| B16A| Patent or certificate of addition of invention granted|

优先权:

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申请号 | 申请日 | 专利标题

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US201161544769P| true| 2011-10-07|2011-10-07|

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US61/544,769|2011-10-07|

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PCT/US2012/058909|WO2013052771A2|2011-10-07|2012-10-05|Personal care compositions and methods of making same|

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