methods and compositions to prevent or reduce the frizzy aspect of hair

专利摘要:
METHODS AND COMPOSITIONS TO PREVENT OR REDUCE THE FRIZZY ASPECT OF HAIRCompositions and methods are disclosed to prevent or reduce the frizzy appearance of keratin fibers, including hair, and to reduce the amount of electric / frizzy hair, particularly in wet conditions, forming a coating on the hair that is resistant to water vapors from the air or surrounding environment. The compositions comprise a combination of a hydrophobic particulate material comprising a hydrophobically modified surface aluminum oxide and one or more hydrophobic film former in a cosmetically acceptable vehicle.
公开号:BR112012008811A2
申请号:R112012008811-4
申请日:2010-10-27
公开日:2020-09-15
发明作者:Mark S. Garrison；Freda E. Robinson；Giovana A. Sandstrom；Kenneth A. Buckridge；Sen Yang；Xiaochun Luo
申请人:Avon Products, Inc.；
IPC主号:

专利说明:

"METHODS AND COMPOSITIONS TO PREVENT OR REDUCE THE FRIZZY ASPECT OF HAIR"
FIELD OF INVENTION. The present invention relates to methods and compositions to prevent or reduce the frizzy appearance of keratin fibers, in particular the hair on the head, and to reduce the amount of hair or fly-away hair, particularly in hair. wet conditions. More specifically, the invention relates to methods and compositions i for forming a coating on the hair that is resistant to moisture and water vapors from the air or the surrounding environment.
BACKGROUND OF THE INVENTION Consumers have used various compositions for personal care and cosmetics to improve the appearance and touch of keratin fibers, such as hair. Exposure to damp conditions can cause the hair to become "full", with an excessively expanded volume (that is, "volume of frizz"), or to appear curled. This condition of frizzy hair often seems uncontrollable and is often characterized by a multiplicity of electric / frizzy hair strands. Frizzy hair is ugly and makes it difficult for consumers to control and maintain their hair style. This frizzy condition is particularly pronounced on dry, damaged or curly hair.
A conventional approach to reducing the appearance of frizzy hair is to apply silicone to the hair. However, these conventional compositions are often impractical, because the large amounts necessary to effectively reduce the frizzy appearance of the hair can also make the hair look greasy and sticky, thus attracting dirt, and appearing opaque and dirty.
- Conventional compositions can also peel or leave unpleasant residues.
It is, therefore, an object of the invention to provide an aesthetically pleasing composition for application on keratin fibers, such as hair, which prevents or reduces the appearance of frizzy and reduces the amount of electric / frizzy hair strands when: hair is exposed to wet conditions. It is an additional object of the invention to provide methods to prevent or reduce the appearance of frizzy hair without negatively affecting the other aesthetic properties (for example, the appearance, touch, volume, shine, smoothness) of the hair.
SUMMARY OF THE INVENTION In accordance with the foregoing and other purposes, the present invention provides method-all compositions to prevent or reduce the frizzy appearance of hair. The compositions of the present invention surprisingly provide protection against conditions of use.
prolonged, for example, 24 hours, 48 hours, or several days, or semi-permanently, which can last through repeated hair washes. The compositions of the invention can be anhydrous or in the form of emulsions, in particular water-in-oil or water-in-silicone emulsions.
In one aspect of the invention, a method is provided for preventing or reducing the appearance of frizzy hair. The method comprises applying to the hair a composition having (a) hydrophobic particulate material comprising an aluminum oxide of hydrophobically modified surface having an average particle size between about nm and about 20 µm, said particulate material hydrophobic comprising from about 10 0.1% to about 2.0% by weight of said composition, (b) a hydrophobic silicone film former comprising from about 0.01% to about 20% per weight of said composition, and (c) a cosmetically acceptable vehicle comprising a silicone fluid having a vapor pressure above about 0.01 mmHg at 20 ° C. The total weight percentage of all water-soluble or water-dispersible non-volatile organic constituents in the composition is less than 5%, based on the total weight of the composition. The composition can form a substantially uniform coating on the axis of the hair fibers. Preferably, the hydrophobic particulate material is surface modified with alkylsilane groups, such as caprylsilane. Most preferably, the hydrophobic particulate material comprises smoked alumina.
In a preferred embodiment, the silicone-based hydrophobic film former can be selected from dimethicone, amodimethicone, dimethicone, silicone polyurethane, silicone acrylate, or a combination thereof. Specifically, the film former may be a silicone acrylate copolymer, such as a copolymer comprising a poly (alkyl) acrylate backbone and a dimethicone polymer grafted onto an alkyl ester chain.
The composition can be in the form of a liquid or an emulsion. Especially a product intended to be left on the hair and without rinsing, and can be distributed over the hair with a brush, comb or fingers or sprayed on the hair. The composition can be applied to the hair when the relative humidity of the environment is 85% or higher.
—Alternatively, the makeup can be applied to the hair daily. In addition, the: composition, when applied to the hair can reduce or prevent the frizzy appearance of the hair after at least one shampoo wash or even after at least two shampoo washes.
In certain embodiments, the composition can provide an angle of contact with a —dependence of water between 100º and 150º when applied as a thin film, on a glass slide.
in the art after reading the following detailed description of the invention, including attached vindications.
DETAILED DESCRIPTION . All estimated amounts in terms of percentage by weight are relative to the entire composition, unless otherwise specified. Unless otherwise provided, the term "alkyl" is intended to encompass straight, branched or cyclic hydrocarbons, particularly those having from one to 20 carbon atoms, and more particularly C; .. 2 Hydrocarbons. As used here, the term "keratin fiber" includes hair from the scalp, eyelashes, eyebrows, beard, hair and body, as well as hair from the arms, legs, etc. Keratin fibers are not limited to humans and also include any keratin fibers from a mammal, such as, for example, pet hair and mammal skin.
The cosmetic compositions of the present invention will generally be anhydrous, although formulations containing water, such as water-in-oil emulsions are within the scope of the invention. As used herein, water-in-oil emulsions include water-in-silicone emulsion. When reference is made to% by weight of a component based on the weight of the total composition, the total weight of the composition will be understood to include both the aqueous and oily phases of the emulsion. In the context of the present invention, water is - considered a volatile solvent and will therefore be excluded from the limitations on hydrophilic and liquid components described herein.
The cosmetic compositions of the invention to reduce or prevent frizzy appearance of keratin fibers (for example, hair) comprise a combination of a hydrophobic particulate material and a silicone-based hydrophobic film former to make a coating on keratin fibers. This new combination has been found to reduce and / or prevent the frizzy appearance of hair and to reduce the amount of electric / frizzy hair, particularly when the hair is exposed to wet conditions. By humid conditions it is understood that the humidity in the surrounding air is at a level that is capable of inducing the appearance of frizzy or electric / frizzy hair. In certain modalities, the compositions are effective in preventing or reducing frizz and reducing hair with strands. electric / creepy at ambient relative humidity (RH) above about 30%, above about 40%, above about 50%, above about 60%, above about 70%, above about 85%, greater than about 95%, or about 100% RH. It has been observed that hair treated with the combination of the invention is more resistant to the appearance of frizzydo than hair treated with an equivalent amount of silicone alone.
Without wishing to be limited by any theory, it is believed that the reduction or prevention of is achieved through the resistance of water vapor from the surrounding air, which is more - abundant in humid conditions. It is also believed that the combination of the invention provides a synergistic effect to reduce or prevent frizzy appearance of keratin fibers and / or - to reduce the amount of electric / frizzy hair strands. In particular, it is believed that the synergistic effect can be observed in hair exposed to wet conditions. In one embodiment, the synergistic effect can be seen in dry, damaged or curly hair.
In addition, it is believed that the composition of the present invention may further prevent or reduce the frizzy appearance of the hair by imparting hydrophobic properties to the hair. It is contemplated that the present invention can impart hydrophilic properties. The contact angle is a measure of the hydrophobicity of the surface and is the angle at which a liquid / vapor interface encounters a solid surface. One method of measuring the contact angle is by applying the composition as a film on glass sheets and allowing the volatile products to evaporate. The contact angle of the thin film on the glass slide with a drop of water can be conveniently measured using a contact angle gauges. It is contemplated that the compositions of the present invention are capable of providing a film on a surface, after evaporation of volatile solvents, which, in some modalities, is characterized by a contact angle with a drop of water greater than about 70º, at about 80º, about 90º, or about 100º up to - about 110º, about 120º, about 130º, about 140º, or about 150º.
A first component of the cosmetic compositions of the invention comprises one or more particulate materials which are either hydrophobic in nature or which have been hydrophobically modified by surface treatment or the like. Although not wishing to be limited by theory, it is thought that the particulate material provides the scale - nanometric (1 nm to - 1000 nm) or micro-scale of surface roughness (1 mm to - 200 nm) or the structure on the film , which repels the humidity of the surrounding air, providing protuberances on which the water droplets can sit, thus reducing water contact with the surface in general, that is, reducing surface adhesion.
In one embodiment, the particulate material can comprise at least one hydrophobic particulate material that has a dynamic (kinematic) friction coefficient, nx,: greater than 0.5. The particulate material may have a sandy or chalky feel and may have substantially non-spherical shapes. Without wishing to be bound by any theory, it is believed that the substantially non-spherical shape of the up, elevated (ie greater than 0.5) provides nanoscale roughness particles for the particles to repel moisture. The high drag of uy, high particles also increases the substantivity of the particles against the hair.
similar. The dynamic friction coefficient can be conveniently measured using, for example. example, a Friction Tester (KES-SE) manufactured by Kato Tech Co., LTD using a silicone rubber friction probe to measure a specific amount (for example, - 0.01 g) of sample evenly spread over a plate of earth quartz with a loaded weight of 50g minus 2 mm / sec. A preferred particulate material according to the invention is hydrophobically modified aluminum oxide (AIZO3), also known as alumina, particularly smoked (or pyrogenic) alumina. Hydrophobically modified silica (SiO> z), including smoked (or pyrogenic) silica (for example, having a particle size range of about 7 nm and about 40 nm and a total particle size between about 100 and about 400 nm) is also contemplated to be particularly useful. Other notable particulate materials are hydrophobically modified metal oxides, including, without limitation, titanium dioxide (TiO,), iron oxides (FeO, Fe20; or FezO,), zirconium dioxide (ZrO> z), tin dioxide (SnO ;,), zinc oxide (ZnO), and their combinations.
Advantageously, the particulate material can be one that provides additional functionality for the compositions, including, for example, the absorption of ultraviolet (UV) light or scattering, in the case of, for example, titanium dioxide and zinc oxide particles, or providing aesthetic characteristics, such as color (for example, pigments), luminosity (for example mica), or the like. The particulate material can be based, for example, on organic or inorganic particulate pigments. Examples of organic particulate pigments include inks, especially aluminum inks, strontium inks, barium inks, and the like. Examples of particulate inorganic pigments are iron oxide, especially red, yellow and black iron oxides, titanium dioxide, zinc oxide, potassium ferricyanide (K; Fe (CN); s), potassium ferrocyanide (K.Fe ( CN) s), potassium fer- rocyanide trihydrate (K, Fe (CN) s * 3H2O), and mixtures thereof. The particulate material can also be based on inorganic fillers such as talc, mica, silica, and their mixtures, or any of the clays disclosed in EP 1 640 419, the disclosure of which is hereby incorporated by reference.
In one embodiment, particulate materials are surface treated in order to impart a hydrophobic coating to them. Hydrophobically modified particles: and methods for preparing hydrophobically modified particles are described in, for example, US Patent No. 3,393,155 to Schutte et a /., US Patent No. 2,705,206 to Wagner et al., US Patent No. 5,500,216 to Wagner et al., US Patent No.
6,683,126 to Keller et a /., And U.S. Patent No. 7,083,828 to Muller et a /., US Patent Pub. no2006 / 0110541 by Russell et al., and U.S. Patent Pub No. 2006 / 0.110,542 to Dietz et a /., the disclosures of which are hereby incorporated by reference. As used here,
by modification of the surface, compared to the particle, in the absence of modification. surface.
In one embodiment, a hydrophobic particle, according to a. The present invention can be formed from an oxide particle (for example, a metal oxide, silicon dioxide, etc.), having its surface covered with (for example, covalently bonded to) non-polar radicals, such as, for example, example, alkyl groups, silicon cones, siloxanes, alkylsiloxanes, organosiloxanes, fluorinated siloxanes, perfluorosiloxanes and organosilanes and alkylsilanes, fluorinated silanes, perfluorinated and / or disilazanes and the like. The surface treatment can be any such treatment that makes the particles more hydrophobic. The surface of the particles can, for example, be covalent or ionically bonded to an organic molecule or a silicon-based molecule or they can be adsorbed to it, or the particle can be physically coated with a layer of hydrophobic material. There is essentially no limitation on the nature of hydrophobic treatment and alkyl, aryl, or allyl silanes, silicones, dimethicone, fatty acids (eg, stearates), polymeric silanes can be mentioned, as well as fluorine and perfluoro derivatives thereof. The hydrophobic compound can be attached to the oxide particle through any suitable coupling agent, linker group, or functional group (for example, silane, ester, ether, etc.). The hydrophobic compound comprises a hydrophobic moiety that can be selected from, for example, alkyl, aryl, allyl, vinyl, alkyl-aryl, arylalkyl, organosilicone, and fluoro or perfluoro and their derivatives. Hydrophobic polymer coatings, including polyurethanes, epoxies and the like, are also contemplated as being useful. US Patent No. 6,315,990 to Farer, et al., The disclosure of which is incorporated herein by reference, described particles coated with suitable fluorosilane that are formed by reacting a particulate having nucleophilic groups, such as oxygen or hydroxy, with a compound containing silicon having a hydrocarbyl group substituted by at least one fluorine atom and a reactive hydrocarbiloxy group capable of displacement by a nucleophile. An example of such a compound is tridecafluorooctyltriethoxy silane, available from Sivento, Piscataway, N.J., under the trade name DYNASILANO "” F
8261. A preferred hydrophobic coating according to the invention is prepared by treating an oxide, for example, alumina, with Trimetoxicaprilil Silane.
. Any of the hydrophobically modified particulate materials described in US Patent No. 6,683,126 to Keller et a /., The disclosure of which is incorporated herein by reference, is also contemplated to be useful, including, without limitation, those obtained by treatment an oxide material (eg SiO ,, TiO ,, etc.), with a compound containing (perfluoro) alkyl that contains at least one reactive functional group that undergoes a chemical reaction with the OH groups near the surface of the support particle chlorotrimethylsilane, and dichlorodimethylsilane.
R In a particularly preferred embodiment, the particulate material is a smoked (or pyrogenic) alumina or a smoked (or pyrogenic) silica that is surface-functionalized with alkylsilyl, fluoro-alkylsilyl, or perfluoro-alkylsilane groups, of preferably with alkylsilane groups (ie, the surface treated with alkylsilanes). Typically, alkylsilane groups will comprise C1-20 hydrocarbons (more typically C1-8 hydrocarbons) that are optionally fluorinated or perfluorinated.
Such groups can be introduced i by reaction on the surface of particles with silanes, such as C1-12-alkyl-trialkoxysilanes (for example, C1-12-alkyl-trimethoxysilanes or C1-12-alkyl-triethoxysilanes). Preferably, the particle surface is functionalized with alkylsilane groups (i.e., the surface treated with alkylsilanes). More preferably, the particle surface is functionalized and the surface modified with octyl groups, also known as caprylsil groups, introduced by reaction with the particles, octyl silanes (or caprylsilanes), for example, trime-toxicaprililsilane or trietoxicaprililsilano.
Such particles are commonly referred to as treated with octylsilane.
In another embodiment, the oxide particle has had a surface treated with a fluoroalkylsilane and, in particular, a perfluoroalkylsilane, such as a C1-20perfluoroalkylsilane, or more typically a C1-12 perfluoroalkylsilane, including an exemplary embodiment, in which the oxide particle the surface is treated with a C8 perfluoroalkylsilane.
Pigments can be prepared by treating the oxide particle with a trialcoxyfluoroalkylsilane, such as Perfluorooctyl Triethoxysilane (INCI). Because the particles are preferably smoked (or pyrogenic), the primary particle size will typically be very small, that is, on the order of 5 nm to about 30 nm.
The specific surface area of these particulate materials will normally, but not necessarily, vary from about 50 to about 300 m / G, more typically, from about 75 to about 250 mº, and preferably from about 100 to about 200 m / g.
Suitable hydrophobically modified alumina particulates include smoked aluminum oxide treated with octylsilane (obtained by reacting trimethoxyoctylsilane with smoked alumina), such as AEROXIDEGO Alu and AEROXIDE "mM ALU C805 from Evonik Industries.
This product is believed to have an average primary particle size of about 13 nm (nanometers) and a specific surface area (SSA) of about 100 + 15 m / G.
Typically, alumina. or hydrophobically modified alumina has not been calcined, meaning that the aluminum has not been heated to a high temperature, for example, to a temperature above 1000 ºC to expel volatile impurities in the crude metal oxide.
Preferably, the particulate material is substantially free of calcined alumina, whereby it is understood that calcined alumina is not deliberately added to the particulate material and the quantities are so low that they have no measurable impact on performance,
calcined.
Additional particles can be included, such as hydrophobically modified smoked silica. When present, suitable hydrophobically modified smoked silica particles include, but are not limited to AEROSIL'Y ”R 202, AEROSIL '" R 805, AEROSIL "" R 812, AEROSIL' "MR 812 S, AEROSIL '" "R 972, AEROSIL '"R 974, AEROSIL'" R 8200, AEROXIDET "LE-1, AEROXIDETY LE-2, and AEROXIDETY El-3 by Evonik / Degussa Corporation of Parsippany, NJ, believed to be hydrophobic smoked silicas , of a surface functionalized with alkylsilane groups for hydrophobicity and a specific surface area (SSA) of about 160 + 30 m / g, about 220 + 30 m / g, and 100 + 30 m / g, respectively. The hydrophobically modified silica materials described in US Patent Pub 2006 / 0.110.542 to Dietz et al., Incorporated herein by reference, are also contemplated as being particularly suitable. Other optional particles include the silicone wax particles sold under the trade name Tegotop "" 105 (Degussa / Goldschmidt Chemical Corporation) and the polymer of vi particulate nila sold under the name Mincor '"" 300 (BASF). While silica (SiO,) and hydrophobically modified silicas are contemplated as being useful in some modalities, in other modalities, the compositions will be substantially free of silica or hydrophobically modified silica. By substantially free of silica or hydrophobically modified silica it means that these components comprise less than about 2%, preferably less than about 1%, and more preferably less than about 0.5% by weight of one or more particulate materials. In other embodiments, the compositions will be free of silica or hydrophobically modified silica. By "free" it means that none is deliberately added and any quantities present will be so low that they do not impact the look, feel or performance of the composition.
The one or more particulate materials can also comprise particulate organic polymers, such as polyethylene, polytetrafluoroethylene, polypropylene, nylon, polyvinyl chloride, and the like, which have been formed into fine powders. Alternatively, the particulate material can be a microcapsule comprising any of the shell materials described in Pub, U.S Patent 2005 / 0.000.531, the disclosure of which is hereby incorporated by reference.
The one or more particulate materials are typically in the form of a powder having an average particle size between about 1 nm (nanometers) and about 1 mm (millimeters), more typically between about 5 nm and about 500 µM (micrometer), preferably between about 7 nm and about 1 µm, more preferably between about 10 nm and about 5 µm, about 20 µm, about 50 µm or about 100 µm. When no more particulate matter is used (for example, modified TiO and / or modified SiO), the size
Particulate materials that have average particle sizes above about 1. mm can be very large, unless the particle itself contains surface roughness in the appropriate size range.
For example, surface treatment of a larger particle with a polymer chain in the 20 nm range can provide acceptable surface roughness.
Roughness of the resulting films can be CHARACTERIZED by the size of the primary particle, the size of particles agglomerated in the aggregate, or the distribution of particle sizes.
Typically, the one or more particulate materials will typically comprise from about 0.01% to about 10% by weight of the total composition, more typically from about 0.1% to about 5%, preferably from about 0, 1% to about 2.0%, more preferably from about 0.25% to about 2.0% by weight of the composition, and more preferably from about 0.4% to about 1.5 %. In certain embodiments, the one or more particulate materials may comprise about 0.4%, about 0.5%, about 0.6%, about 0.67%, about 0.7%, about 0 , 75%, about 0.8%, about 0.9%, about 1.0%, about 1.25% and about 1.5% by weight of the composition.
In some embodiments, the particulate material may comprise more than about 5%, more than about 10%, more than about 15%, more than about 20%, more than about 25%, more than about 30%, more than about 35%, more than about 40%, more than about 45%, more than about 50%, more than about 55%, more than about 60%, more than about 65%, more than about 70%, more than about 75%, more than about 80%, more than about 85%, more than about 90%, or more than about 95% by weight of octyl-functionalized smoked alumina.
A second component of the composition of the invention comprises one or more film former.
The film former preferably comprises a hydrophobic material.
The hydrophobic film former may be any hydrophobic film former suitable for use in a cosmetic composition, including, but not limited to, hydrophobic film former polymers.
The term film-forming polymer can be understood to indicate a polymer that is capable, alone or in the presence of at least one auxiliary film-forming agent, to form a continuous film that adheres to a surface and functions as a binder for particulate material.
The term "hydrophobic" film-forming polymer will typically refer to a polymer with a water solubility at 25 ° C of less than about 1% by weight, or one in which the polymer monomer units individually have a water solubility of less than about 1% by weight, aZ25 ”C.
Alternatively, a "hydrophobic" film-forming polymer can be said to be one that divides predominantly into the octane phase! when stirred more than 50% by weight, but preferably more than 75% by weight, more preferably. more than 95% by weight, will split in the octanol phase. The film former is preferably based on silicone. By silicone-based, it means that the hydrophobic film former - comprises at least a portion of silicone, such as, for example, amodimethicone dimethicone, dimethicone, silicone polyurethane, silicone acrylate or combinations thereof. Without wishing to be limited by any theory, it is believed that the reduction or prevention of the frizzy appearance of the hair and to reduce the amount of electric / frizzy hair strands is achieved by the hydrophobic film former a material bond hydrophobic particulate in an aggregate structure, analogous to a brick and mortar i10 wall and thus improves the water vapor resistance properties of hair treated with the composition of the invention.
Film-makers can be natural or synthetic, polymeric or non-polymeric, resins, binders, with low or high molar mass. Polymeric film formers can be natural or synthetic, addition or condensation, or homochain or hetero-chain, monodisperse or polydispersed, organic or inorganic, homopolymers or copolymers, linear or branched or reticulated, loaded or discharged, thermoplastics or thermoset, elastomeric, crystalline or amorphous or both isotactic or syndiotatic, or atactic.
Polymeric film formers include polyolefins, polyvinyls and polyacrylates, polyurethanes, silicones, silicone acrylates, polyamides, polyesters, polyethers, fluoropolymers, polyacetates, polycarbonates, polyimides, rubbers, epoxies, formaldehyde resins, and copolymers and copolymers. and the above.
Suitable hydrophobic (lipophilic) film-forming polymers include, without limitation, those described in U.S. Patent No. 7,037,515 to Kalafsky, et al; 6,685,952 to Maetal .; 6,464,969 to De La Poterie, et al; 6,264,933 to Bodelin, et al; 6,683,126 to Keller et al .; and 5,911,980 to Samour, et al, whose descriptions are hereby incorporated by reference.
Copolymers comprising one or more blocks selected from styrene (S), alkylstyrene (AS), ethylene / butylene (EB), ethylene / propylene (EP), butadiene (B), iso-propene (Il), acrylate (A ) and methacrylate (MA), or a combination thereof, are envisaged to be suitable hydrophobic film former. Particular mention is made of ethylene-propylene / styrene and butylene / ethylene / styrene, including those sold under the trade name Versagel MD 1600 by Penreco as gelling agents in isododecane (DDI).
Special mention can be made of polyalkylene and, in particular C2-C20 alkylene copolymers, such as polybutene; alkylcelluloses with a C1-C8 linear alkyl or vinylpyrrolidone (VP) radical and in particular vinylpyrrolidone and C2 to C40 copolymers and, even better C3 to C20 alkene, including vinyl pyrrolidone copolymers with eicosene or dodecane monomers sold under the names commercials Ganex V 220 and Ganex V 216: Polymers (ISP Inc. of Wayne, NJ); polyanhydride resins, such as those available from — Chevrons under the trade name PA-18; copolymers derived from maleic anhydride and C3 to CA40 alkenes, such as octadecene-1; polyurethane polymers, such as Performa V 825 (New Phase Technologies) and those disclosed in U.S. Patent
No. 7,150,878 to Gonzalez, et al, incorporated herein by reference; and polymers and copolymers produced from esters of vinyl acid monomers, including, without limitation (meth) acrylic acid esters (also referred to as (meth) acrylates), for example, (meth) alkyl acrylates, where the alkyl group is chosen from linear, branched and cyclic (C1-C30) alkyls, such as, for example, (C1-C20) (meth) alkyl acrylates, and even more (C6-C10) (meth) acrylates alkyl compounds.
Among the alkyl (meth) acrylates that can be mentioned are those chosen from methyl methacrylate, ethyl methacrylate, butyl methacrylate, isobutyl methacrylate, 2-ethylhexyl methacrylate, lauryl methacrylate, and the like.
Among the aryl (meth) acrylates that can be mentioned are those chosen from benzyl acrylates, phenyl acrylate, and the like.
The alkyl group of the above esters can be chosen, for example, from fluorinated and perfluorinated alkyl groups, that is to say that some or all of the hydrogen atoms of the alkyl group are replaced by fluorine atoms.
Mention may also be made of amides of acidic monomers, such as (meth) acrylamides, for example, N-alkyl (meth) acrylamides, such as (C1-C20) alkyls, including, without limitation, N-ethylacrylamide , Nt-butylacrylamide, Nt-octylacrylamide and N-undecylacrylamide.
Vinyl polymers for the hydrophobic film-forming polymer can also result from the homopolymerization or copolymerization of at least one monomer chosen from vinyl esters, olefins (including fluoroolefins), vinyl ethers, and styrene monomers.
For example, these monomers can be copolymerized with at least one of the acidic monomers, esters and amides thereof, such as those mentioned above.
Non-limiting examples of vinyl esters that can be mentioned are chosen from vinyl acetate, vinyl neocanoate, vinyl pivalate, vinyl benzoate and vinyl t-butylbenzoate.
Among the olefins that can be mentioned are those chosen, for example, from ethylene, propylene, butene, isobutene, octene, octadecene, and polyfluorinated olefins chosen, for example, from tetrafluoroethylene, vinylidene fluoride, hexafluoropropene and chlorotri-fluoroethylene .
Styrene monomers that can be mentioned are chosen, for example, from styrene and alpha-methylstyrene.
The list of monomers given is not limiting, and it is possible to use any monomer known to those skilled in the art that falls within the categories of acrylic and vinyl monomers that result in hydrophobic films.
This particular copolymers comprise a main structure of poly (alkyl) acrylate and a. dimethicone polymer grafted to an alkyl ester side chain, as the commercially available film former Cyclopentasiloxane Copolymer (e) Acrylates / Dimethicone. (KP-545, Shin-Etsu Chemical Co., Ltd) and Methyl Trimethicone Copolymers (e) Acrylates / Dimethicone (KP-549, Shin-Etsu Chemical Co ,, Ltd.) Other film makers known in the art may be advantageously used in the composition. These include acrylate copolymers, 12-22 alkyl methacrylate acrylates, acrylate / octylacrylamide copolymer, acrylate / VA copolymers, amodimethicone, AMP / acrylate copolymer, beenyl / isostearyl, butylated PVP butyl ester. PVM / MA copolymers, calcium / sodium PVM / MA copolymers, dimethicone, dimethicone / mercaptopropyl dimethicone copolymers, propyl ethylene diamine dimethicone, ethyl cellulose dimethiconol, ethylene / acrylic acid copolymer, ethylene / MA copolymers, ethylene copolymer / VA, C2-8alkyldimethicone fluoro, C30-38 olefin copolymer / isopropyl maltate / MA, styrene / hydrogenated butadiene copolymer, hydroxyethyl ethylcellulose, isobutylene / MA copolymer, methyl methacrylate crospolymer, copolymer methylacryloyl ethyl / acrylates, octadecene / MA copolymer, octadecene copolymer / maleic anhydrous, octylacrylamide / acrylate / butylaminoe methacrylate copolymer - tyl, oxidized polyethylene, perfluoropolymethylisopropyl ether, polyethylene, polymethyl methacrylate, polypropylene, PVM / MA crospolymer decadene, PVUM / MA copolymer, PVP, PVP / decene copolymer, PVP / eicosene copolymer, PVP / eicosene copolymer hexadecene, PVP / MA copolymer, PVP / VA copolymer, vinyl alcohol / sodium acrylate copolymer, stearoxy dimethicone, stearoxytrimethylsilane, stearyl alcohol, stearyl vinyl ether / MA copolymer, styrene / DVB copolymer / sty copolymer / sty copolymer MA, tricontanil PVP, trimethylsiloxysilicate, VA copolymer / crotonates, VA copolymer / crotonates / propio- —node vinyl, VA copolymer / butyl maleate / isobornyl acrylate, caprolactam vinyl copolymer / PVP / vinyl acetate and methacrylate acrylate, dimethylmethacrylate and dimethyl vinyl acetate. .
Additional non-limiting representatives of hydrophobic film-forming polymers include at least one polycondensate chosen from polyurethanes, polyurethane-acrylics, polyurethane-polyvinylpyrrolidones, polyester-polyurethanes, polyether-polyurethanes, polyurea and polyurea / polyurethane. Polyurethanes can be, for example, at least. one chosen from aliphatics, cycloaliphatics, and aromatic polyurethanes, and polyureaurethanes, and polyurea copolymers comprising at least one of: at least one sequence of at least one aliphatic polyester origin, cycloaliphatic polyester origin, and origin aromatic polyester, at least one branched and unbranched silicone sequence, for example, from polydimethylsiloxane and polymethylphenylsiloxane, and at least one sequence comprising fluorinated groups. Additional non-limiting fatty acid chain reporesents, polyamide resins, epoxyester resins and arylsulfonamide-epoxy resins, and resins resulting from the condensation of formaldehyde with an arylsulfonamide.
. The hydrophobic film can also be formed in situ using a resin that cures after application to the skin, nails or hair, including, for example, a polydimethylsiloxane film formed by in situ hydrolysis of a hydrosilane and an olefinic-substituted siloxane or by in situ polycondensation of alkoxy-functionalized siloxanes. Preferred polymeric film makers include silicone polymers, acrylates, | alkyl acrylates, polyurethanes, fluoropolymers, such as Fluomer (polyiperfluoroperhydro-phenanthrene) or Flutec PP3 available from F2 chemicals, and silicone acrylates such as acrylates / dimethicone copolymers sold under the trade names KP-545 or KP 550 (Shin -Etsu). Suitable film former include, but are not limited to, Amino Bispropyl Dimethicone, Aminopropyl Dimethicone, Amodimethicone, Amodimethicone Hydroxystearate, Behenoxy Dimethicone, C30-45 Alkyl Dimethicone, C24-28 Alkyl Dimethicone, - C30-45 Alkyl Methicone, Cetearyl Cetyl Dimethicone, Dimethicone, Dimethoxysilyl Ethylodiaminopropyl Dimethicone, Hexyl Methicone, Hydroxypropyldimethicone, Stearamidopropyl Dimethylone, Stearoxy Dimethicone, Stearyl Methicone, Stearyl Dimethicone and Vinyl Dimethicone. Particularly preferred are silicone polymers, including Methicone (as described by CTFA Monograph No. 1581, which is incorporated by reference), Dimethicone (as described by CTFA Monograph No. 840, which is incorporated by reference) and Amodi- methicones as described by CTFA Monograph No. 189, which is hereby incorporated by reference). All CTFA Monographs provided here are found in the International Cosmetic Ingredient Dictionary and Handbook, 12th Edition (2008), and are incorporated by reference.
In one embodiment of the invention, the compositions include a silicone gum. Suitable silicone gums will typically have a molecular weight of about 200,000 to about 600,000. Specific examples include polydimethylsiloxane, (polydimethylsiloxane) copolymer (methylvinylsiloxane), poly (dimethylsiloxane) (diphenyl) (methylvinylsiloxane) copolymer, dimethicone, fluorosilicone, dimethicone, or mixtures thereof. In a preferred embodiment, the film-forming silicone agoma is a high molecular weight dimethicone.
'High molecular weight dimethones have high viscosities and are generally referred to as dimethicone gums. The viscosity of the silicone gum can be, without limitation, about 500,000 centistokes to about 100 million centistokes measured at 25 ° C. High molecular weight dimethones are commercially available in combination with lower molecular weight silicones or volatile silicones, which makes high molecular weight dimethones easier to handle. A suitable blend available from Momentive under the trade name SF 1214 .. In another preferred embodiment, the film-forming polymer is a silicon acrylate, such as that having CTFA Monograph No. 10,082 and the name INCI acylates / - dimethicone. This polymer is commercially available from Shin-Etsu Chemical Co., Ltd. under the trade name KP-544 and comprises copolymers grafted with an acrylic polymer backbone and dimethylpolysiloxane side chains. The same polymer is commercially available in a variety of different solvents, including isopropyl alcohol (KP-541), butyl acetate (KP-543), cyclopentasiloxane (KP-545), methyl trimethycona (KP- 549), and isododecane (KP550).
In another embodiment, the film-forming polymer may be a silicone urethane, such as that having the name INCI Bis-Hydroxypropyl Dimethicone / SMDI Copolymer and the INCI ID No 22.006 Monograph. This polymer is commercially available from Siltech Corp under the trade name SILMER UR-5050, which comprises the polymer in isododecane.
Other film makers that can be used include, without limitation, mineral, natural and / or synthetic waxes. Natural waxes are those of animal origin, including, without limitation, beeswax, spermaceti, lanolin, shellac wax and, and those of vegetable origin, including, without limitation, carnauba, candelilla, cerie, and sugar cane wax, and the like. Mineral waxes contemplated to be useful include, without limitation ozokerite, ceresin, Montan, paraffin, microcrystalline, petroleum, and petrolatum waxes. Synthetic waxes include, for example, Fischer Tropsch (FT) waxes and polyolefin waxes, such as ethylene homopolymers, ethylene-propylene copolymers and ethylene-hexene copolymers. Representative ethylene homopolymer waxes are commercially available under the trade name Polyethylene POLIWAX & (Baker Hughes Incorporated).
Commercially available ethylene-a-olefin copolymer waxes include those sold under the brand name PETROLITE & Copolymers (Baker Hughes Incorporated). Another suitable wax is the dimethicone beeswax available from Noveon as the ULTRABEE "M dimethicone ester. In some embodiments, it may be desirable to add a water-soluble hydrophilic film former (eg cellulosic, polysaccharide materials, polyquaterniums (such as polyquaternium-37 (INCI), etc.) in the composition to improve spreading, emulsion stability, aesthetic appearance and touch, etc. Although less preferred, it is within the scope of the invention to include such hydrophilic film formers or There is no restriction on the amount of hydrophilic or water-soluble film former, although at high levels (for example, greater than 20% by weight, based on the total weight of the film former) it may be necessary to increase 2a oronportion of hydro particles
modalities, the percentage in collective weight of hydrophilic film or soluble film makers. water levels will be less than about 20%, preferably less than about 15%, more preferably less than about 10%, and most preferably, less than. than about 5% by weight, based on the total weight of all film makers. In a preferred embodiment, hydrophilic film former will comprise less than about 2% by weight of the total weight of film former in the composition. In a fashion, the composition is substantially free of water-soluble film-formers whereby the composition is understood to comprise less than 2% by weight, preferably less than 1% by weight, and even more preferable , less than 0.5% by weight of one or more of the film formers. In one embodiment, the composition does not contain any hydrophilic film former.
Combinations of any of the foregoing film former are also contemplated to be suitable, including combinations or polymeric and non-polymer film former.
The film former will comprise from about 0.01% to about 20% by weight of the composition, and more typically will comprise between about 0.25% to about 15%, and preferably from about 1 to 12 %, more preferably from 1.5% to about 10%, and most preferably from about 3% to about 8% by weight of the composition. Generally, the weight ratio of one or more hydrophobic particulate material to one or more film former will be from about 1: 1 to about 1: 100, about 1: 1.25 to about 1:75, about 1: 1.5 to about 1: 50, about 1: 1.75 to about 1:25, or about 1: 2 to about 1:10. The following proportions of one or more hydrophobic particulate material can be cited for one or more film-forming: about 1:20, about 1:15, about 1:10 about 1: 9, about 1: 8 , about 1: 7, about 1: 6, about 1: 5, about 1: 4, about 1: 3, about 1: 2, about 1: 1.5 and about 1: 1.
In certain embodiments, the composition will comprise a silicone acrylate film former in addition to a silicone gum film former. The silicone film former and the silicone gum film former may each independently comprise about 0.01% to about 20% by weight of the composition, and more typically will comprise between about 0, 25% to about 15%, and preferably from about 1.0% to about 10%, and more preferably, from 1.5% to about 8%, and even more preferable about 3% to about 5% by weight of the composition.
The compositions of the invention will typically comprise a cosmetically acceptable vehicle. By "cosmetically acceptable" it means that the vehicle is safe for contact with human skin. The vehicle can comprise a liquid, which comprises a single-phase, double-phase system, or an emulsion. Emulsions include oil-in-water, silicon
spray, it may be desirable to employ a single-phase vehicle, or a vehicle. double-phase comprising an aqueous phase and an oil phase, the oil phase comprising a silicone oil. When formulated as an emulsion, an emulsifying agent is typically included. In other embodiments, the composition is substantially free or free of an emulsifier. By being substantially free of an emulsifier it means that no emulsifying agent is deliberately added to the composition and the amounts present, if any, are so low that they have no measurable impact on the stability of an emulsion.
In one embodiment, the vehicle may comprise a volatile solvent. Typically, | 10 a volatile solvent can have a vapor pressure of above about 0.01 mmHg at 20 ° C. Volatile solvents may include C5-12 volatile hydrocarbons (for example, isododeone), aromatic hydrocarbons (for example, xylenes, toluene, etc.), ketones (for example, actetone, methyl ethyl ketone, etc.), ethers ( eg diethyl ether, methyl ethyl ether, etc.), and perfluorohydrocarbons, hydrofluoroethers and freons, volatile silicones (eg, Cyclo-pentasiloxane), lower alcohols (eg, ethanol, isopropyl alcohol, etc.), esters of acetic acid (e.g., butyl acetate, ethyl acetate, etc.) and the like. Preferred volatile solvents will be cosmetically acceptable. Volatile silicones are a preferred volatile solvent. By volatile silicone means that the oil readily evaporates at room temperatures. Typically, volatile silicone oils will exhibit a vapor pressure ranging from about 1 Pa to about 2 kPa at 25 "C; preferably, they will have a viscosity of about 0.1 to about 10 centistokes, preferably about 5 centistokes or less, more preferably about 2 centistokes or less, at 25 "° C, and will boil at atmospheric pressure from about 35 ° C to about 250 ° C. Volatile silicones include volatile cyclic and linear dimethylsiloxane silicones, including 0.5 cst — addemethicone, 0.65 cst dimethicone, 1 cst dimethicone, and 1.5 cst dimethicone. In one embodiment, volatile silicones can include cyclodimethicone, including tetramer (D4), pentamer (D5), and hexamer (D6) cyclomethicone, or mixtures thereof. Suitable dimethones are available from Dow Corning under the name Dow Corning 200 & Fluid and have viscosities ranging from 0.65 to 5 centistokes. Suitable non-polar, volatile liquid silicone oils are disclosed in U.S. Patent No. 4,781,917, hereby incorporated by reference in their entirety. Additional volatile silicone materials are described in Todd et al. "Volatile Silicone Fluids Cosmetics”, Cosmetics and Toiletries, 91: 27-32 (1976), incorporated by reference in their entirety. Linear volatile silicones generally have less viscosity than about 5 centistokes at 25 ° C, while cyclic silicones have viscosities of less than about 10 centistokes at 25 ° C. Examples of volatile silicones of different viscosities include Dow Corning 200, Dow Corning 244, Dow Cor-
Silicone Fluids (GE Silicones), GE 7207 and 7158 (General Electric Co.), and SWS-03314 (SWS Silicones Corp.). Linear volatile silicones include low molecular weight polydimethylsiloxane compounds such as methyltrimethicone, trisiloxane, hexamethyldisiloxane, octamethyltrisyloxane, decamethyltetrasiloxane, and dodecamethylpentasiloxane to name a few. Particularly preferred volatile silicones of the present invention include cyclomethicone tetramer, cyclomethicone pentamer, cyclomethicone hexamer, trisiloxane, methyl trimethicone or combinations thereof.
Lower alcohol solvents, including methanol, ethanol (also known as ethyl alcohol), propanol and isopropanol, are also contemplated as being useful. Ethanol is particularly preferred because of its high volatility and low toxicity. Preferably, ethanol is anhydrous ethanol, such as SD 40 alcohol from Exxon. In other embodiments, the compositions comprise less than about 50%, less than about 40%, less than about 30%, less than about 20%, less than about 10%, or less than about 5% by weight of ethanol. In some embodiments, the compositions comprise less than about 2.5%, less than about 1%, or less than about 0.5% by weight of ethanol. In other embodiments, the compositions are substantially free of ethanol, whereby it is understood that no ethanol is deliberately added and the amounts present, if any, are so low that they do not have a measurable impact on the appearance, feel, or effect. product performance. In one - other way, the composition is free of ethanol.
Among C5-12 volatile hydrocarbons, special mention can be made of isodecane which is available under the trade name Permetil-99º (Presperse, Inc.). Suitable fluorinated solvents include, without limitation, perfluoroethers, perfluorodecaline, perfluoromethyldecalin, perfluorohexane, perfluoromethylcyclohexane, perfluorodimethylcyclohexane, —perfluoroheptane, perfluorooctane, perfluoromethane, and perfluoromethane, and perfluoromethane, and perfluoromethane, and perfluoromethane, and perfluoromethane.
In a preferred embodiment, the solvent will comprise a combination of a volatile silicone, preferably cyclomethicone pentamer, and anhydrous ethanol. Preferably, the volatile silicone (cyclomethicone pentamer) will comprise from about 1% to about 99% and ethanol will comprise between about 1% to about 99% by weight of the system. solvent. More particularly, the volatile silicone (cyclomethicone pentamer) will comprise from about 50% to about 99% and ethanol will comprise from about 1% to about 50% by weight of the solvent system. In a preferred embodiment, the volatile silicone (cyclomethicone pentamer) will comprise from about 70% to about 90% and ethanol will comprise from about 10% to about 30% by weight of the solvent system.
In an additional embodiment, the compositions according to the invention will give a vapor pressure at 25 ° C, which is less than the ethanol vapor pressure. In . in another embodiment, the compositions according to the invention will comprise ethanol, preferably anhydrous, in combination with one or more solvents having a vapor pressure - at 25 ° C, which is greater than the ethanol vapor pressure. Anhydrous Formulations The compositions of the invention can be provided as anhydrous or substantially anhydrous formulations. By "substantially anhydrous" it means that the weight percentage of water in the composition is less than about 0.5%, preferably less than 0.25%, and more preferably less than about 0.1% by weight . Typically, the anhydrous compositions are substantially free of water whereby it is understood that water is not deliberately added to the compositions and the water level is no more than would be expected based on the absorption of water from the air. The anhydrous composition will typically comprise a volatile hydrophobic solvent, such as volatile hydrocarbons, volatile silicones, and the like.
Water-in-oil emulsions The compositions according to the invention can be formulated as water-in-oil. These emulsions comprise an oil-containing continuous phase and a discontinuous aqueous phase.
The oil-containing phase will typically comprise from about 10% to about 99%, from about 20% to about 85%, or from about 30% to about 75% by weight, based on the total weight of the composition , and the aqueous phase will typically comprise from about 1% to about 90%, from about 5% to about 80%, from about 10% to about 70%, or from about 15% to about 60% by weight of the composition. In one embodiment, the oil-containing phase and the aqueous phase may comprise approximately equal percentages of the total weight of the emulsion.
The oil-containing phase can be composed of a single oil or mixtures of different oils. Essentially, any oil is considered to be useful, although highly hydrophobic oils are preferred. Suitable non-limiting examples include vegetable oils, esters such as octyl palmitate, isopropyl myristate and isopropyl palmitate, ethers such as Dicapril ether; fatty alcohols such as cetyl alcohol, alcohol. tearyl and beenyl alcohol; isoparaffins, such as isooctane, isododecane and isohexadecane; silicone oils such as dimethicone, cyclic silicones, and polysiloxanes, hydrocarbon oils, such as mineral oil, petrolatum, isoeicosane and polyisobutene; natural or synthetic waxes; and the like.
Suitable hydrophobic hydrocarbon oils can be saturated or unsaturated, have an aliphatic character and be linear or branched in chain or contain even carbon rings, more preferably 10-16 carbon atoms.
Representative hydrocarbons include dean, dodecane, tetradecane, tridecane, and C8-20 isoparaffins.
Paraffinic hydrocarbons are available from Exxon under the trademark ISOPARS and, from. Permethyl Corporatin.
In addition, C8-20 paraffinic hydrocarbons, such as C12 isopharapine (isododecane) manufactured by Permethyl Corporation under the trade name Permethyl 99A "Y are also contemplated as being suitable.
Several commercially available C16 isoparaffins, such as isohexadecane (bearing the trademark Permethy! R'M) are also suitable.
Examples of preferred volatile hydrocarbons include polydecanes such as isododecane and isodecane, including, for example, Permethyl-99A (Presperse, Inc.) and C7-C8 to C12-C15, such as Isopar Series isoparaffins available from Exxon Chemicals.
A representative hydrocarbon solvent is isododecane.
Critically, emulsions have little or no non-volatile hydrophilic constituents, including some conventional humectants.
Components such as glycerin and polyols, including propylene glycol, ethoxydiglycol, glycerin, butylene glycol, pentylene glycol and hexylene glycol must be eliminated or maintained at levels such that hydrophilic non-volatile components, such as soluble constituents in non-volatile or dispersible organic water water, in the aggregate, does not exceed 15% by weight and preferably it will be less than 10%, less than 5%, less than 2%, or less than 1% by weight, based on the total weight of the composition.
Glycerin has been found to be particularly harmful and should therefore be kept at levels below 2% by weight, or less than 1% by weight, or completely eliminated.
It was found that the selection and quantity of emulsifier is important for obtaining films that provide resistant water vapor properties.
Because the emulsifier itself is detrimental to the formation of a water vapor resistant film or negatively affects performance durability through repeated hair washes, the compositions preferably have the lowest level of emulsifier capable of producing a stable emulsion.
The amount of emulsifier will typically be from about 0.001 to about 10% by weight, but will preferably range from about 0.01 to about 5% by weight, more preferably from 0.1 to 3%, and more preferably about from 0.25 to about 1% by weight, based on the total weight of the composition.
In other modalities, e-. mulsifier may be absent.
In compositions where the emulsifier is extremely low or absent, the composition can be of the "shake well" type such that the composition forms a transient emulsion when vigorously mixed or stirred, and separates into two distinct phases when left to stand over a period of time in a container For water-in-oil emulsions, the emulsifier itself must be Hydro-Balance
8.5. While combinations of more than one emulsifier are contemplated to be within the scope of the invention, each such emulsifier individually must be of low HLB. Therefore, the use of high and low HLB emulsifiers, which in combination give: Low HLB (for example, less than 8.5), is less desirable because, even if the system's combined HLB is less than 8.5, the contribution of the larger HLB emulsifier will be detrimental to the formation of a water vapor resistant film. If present, the amount of emulsifier having an HLB greater than 10 will be less than 1% by weight, more preferably less than 0.5% by weight, and most preferably less than. 0.2% by weight.
When the emulsifier is of the polyethoxylated type (for example, polyoxyethylene ethers or esters) comprising the chains of the form - (CH, CH, O), -, it is preferred that n be less than 20, more preferably less than 10, more preferably less than 5. Propoxylated emulsifiers are also contemplated to be suitable. Propoxylated emulsifiers also, preferably less than 20, more preferably less than 10, more preferably less than 5 propylene oxide repeating units.
Emulsifiers that can be used in the composition of the present invention include, but are not limited to, one or more of the following: sorbitan esters; polyglyceryl-3-diisoestearate; sorbitan monostearate, sorbitan tristearate, sorbitan sesquioleate, sorbitan monooleate; glycerol esters such as glycerol monostearate and glycerol mono-oleate; polyoxyethylene phenols, such as hay! otyl polyoxyethylene and nonyl polyoxyethylene phenol; polyoxyethylene ethers, such as polyoxyethylene cetyl ether and polyoxyethylene stearyl ether, polyoxyethylene glycol esters, polyoxyethylene sorbitan esters; dimethicone copolyols, polyglyceryl esters such as polyglyceryl-3-diisoestearate; laura-tode glyceryl; estearet-2, estearet-10, and estearet-20, to name a few. Additional emulsifiers are provided in INCI Ingredient Dictionary And Handbook 11th Edition 2006, the disclosure of which is hereby incorporated by reference.
An example of a very low HLB emulsifier contemplated to be suitable according to the invention is Span 83, a mono-oleate and dioleate sesquiester at a 2: 1 molecular ratio, which has an HLB of 3.7. Sorbitan monostearate (INCI) is another suitable emulsifying agent, having an HLB value of 4.7.
The aqueous phase can include one or more additional solvents, volatile solvents, preferably including lower alcohols, such as ethanol, isopropanol, and the like. Volatile solvents, when present in the aqueous phase, typically comprise from about 10, 1% to about 75% by weight of the aqueous phase, more typically up to about 35% by weight, and preferably up to about 15% by weight. Optional water and volatile solvents
because the particles tend to be pushed to the surface of the film as the solvents evaporate.
Silicone Water Emulsion - A type of water-in-oil emulsion that has been found to be useful is a water-in-silicone emulsion having a continuous phase containing silicone oil and a discontinuous aqueous phase.
Typically, water is incorporated into the composition to form a water-in-silicone emulsion for the purpose of dissolving the water-soluble ingredients in the composition.
The water-soluble can include water-soluble polymer among others that confer additional aesthetic benefits, for example, appearance and / or sensation to the hair.
Preferably, the amount of water added to the composition will be the minimum that is required or necessary to dissolve the desired water-soluble ingredient.
Alternatively, water can be incorporated into the composition for the purpose of forming a water-in-silicone emulsion and increasing the composition's viscosity.
Preferably, the amount of water introduced is in the minimum amount necessary to achieve the desired viscosity.
The silicone-containing phase will typically comprise from about 10% to about 99%, from about 20% to about 85%, or between about 30% to about 75% by weight, based on the total weight of the composition , and the aqueous phase will typically comprise from about 1% to about 90%, from about 5% to about 80%, from about 10% to about 70%, or from about 15% to about 60 % by weight of the composition.
In one embodiment, the silicone-containing phase and the aqueous phase may comprise percentages approximately equal to the total weight of the emulsion.
Preferably, only the minimum amount of water necessary to achieve the desired functions, such as dissolving the water-soluble ingredients or increasing the viscosity of the composition, should be introduced.
For example, if a lotion consistency is desired, and the composition includes low amounts of water-soluble polymers in its formula, between 10% and 25% water will usually be sufficient.
In another example, if a cream consistency is desired for the composition, or if large quantities of water-soluble ingredients (eg active agents / polymers / etc.) are desired, between about 25% and about 50% water may be needed.
The silicone-containing or oil-containing phase may vary depending on the amount of aqueous phase present in the composition.
The silicone oil phase can include volatile silicone oils, non-volatile silicone oils, and their combinations.
By volatile silicone oil it means that the oil readily evaporates at ambient temperatures.
Typically, volatile silicone oils will exhibit a viscosity of about 0.1 to about 10 centistokes, preferably about 5 centistokes or less, more preferably about 2 centistokes or less, at 25 ° C, and will boil at room temperature. atmospheric pressure of about 35 ° C to about 250 ° C. : Volatile silicones useful for the silicone oil phase of the water-in-silicone emulsion include cyclic and linear volatile dimethylsiloxane silicones. In one embodiment, volatile silicones may include cyclodimethicone, including tetramer (D4), pentamer (D5), and hexamer (D6) cyclomethicone, or mixtures thereof. Particular mention can be made of volatile cyclomethicone - hexamethyl cyclotrisiloxane, octamethyl-cyclotetrasiloxane, and decamethyl-cyclopentasiloxane. Suitable volatile dimethones are available from Dow | 10 —Corningsobo name Dow Corning 200 & Fluid and have viscosities ranging from about 0.65 to about 5 centistokes. Suitable non-polar, volatile liquid silicone oils are disclosed in U.S. Patent No. 4,781,917, hereby incorporated by reference in their entirety. Additional volatile silicone materials are described in Todd et al., "Volatile Silicon Fluids for Cosmetics", Cosmetics and Toiletries 91: 27-32 (1976), hereby incorporated by reference in their entirety. Volatile linear silicones generally have a viscosity of less than about 5 centistokes, at 25 ° C, whereas cyclic silicones have viscosities of less than about 10 centistokes at 25 ° C. Examples of volatile silicones of different viscosities include Dow Corning 200, Dow Corning 244, Dow Corning 245, Dow Corning 344, and Dow Corning 345, (Dow Corning Corp); SF-1204 and SF-1202 Silicone Fluids (GE Silicones)) GE 7207 and 7158 (General Electric Co.), and SWS-03314 (SWS Silicones Corp.) Linear volatile silicones include low molecular weight polydimethylsiloxane compounds like HMDS, octamethyltrisiloxane , decamethyltetrasiloxane and dodecamethyl pentasiloxane to name a few.
Non-volatile silicone oils will typically comprise polyalkylsiloxanes, polyarylisiloxanes, polyalkylsiloxanes, or mixtures thereof. Polydimethylsiloxanes are preferred non-volatile silicone oils. Non-volatile silicone oils will typically have a viscosity of about 10 to about 60,000 centistokes at 25 ° C, preferably between about 10 and about 10,000 centistokes, and most preferably between about 10 and about 500 centistokes ; and a boiling point above 250 ºC at atmospheric pressure. Non-limiting examples include dimethyl polysiloxane (dimethicone), phenyl trimethicone, and diphenyldimethicone.
Volatile and non-volatile silicone oils that can be optionally substituted will comprise several functional groups, such as alkyl, aryl, amine, vinyl, hydroxyl groups, haloalkyl groups, alkylaryl groups, and acrylate groups, to name a few.
The water-in-silicone emulsion is emulsified with a nonionic surfactant (emulsifier). Suitable emulsifiers include polyoxyalkylene-block block copolymers
of which is incorporated herein by reference. These emulsifiers generally comprise a main structure of polydiorganosiloxane, typically polydimethylsiloxane, having side chains comprising groups - (EO), - and / or - (PO), -, where ethylene oxide is ethylene oxide and PO is 1 , 2-propyleneoxy, side chains typically being deflected or terminated with hydrogen or lower alkyl groups (e.g., C1-6, typically C1-3). The side chains preferably comprise 50 EO and / or PO units or less (for example, m + n = <50), preferably 20 or less, and more preferably 10 or less. In addition to the alkoxylated side chain, the silicone emulsifier can also comprise. pendant chain of alkyl chains from the main silicone structure. Other suitable water-in-silicone emulsifiers are disclosed in U.S. Patent No. 6,685,952, the disclosure of which is incorporated herein by reference. Commercially available water-in-silicone emulsifiers include those available from Dow Corning under the trade names 3225C and 5225C FORMULATIO AID; SF-1528 SILICONE available from General Electric; ABIL EM 90 and EM 97, available from Goldschmidt Chemical Corporation (Hopewell, VA); and the SILWET series of emulsifiers sold by OSI Specialties (Danbury CT).
Examples of water-in-silicone emulsifiers include, without limitation, PEG / PPG-18/18 dimethicone (trade name 5225C, Dow Corning), PEG / PPG-19/19 dimethicone (trade name BY25-337, Dow Corning ), Cetyl PEG / PPG-10/1 dimethicone (trade name Abil EM-90, Goldschmidt Chemical Corporation), PEG-12 dimethicone (co-commercial name SF 1288, General Electric), lauryl PEG / PPG-18/18 methicone (trade name 5200 FORMULATION AID, Dow Corning), PEG-12 dimethicone crospolymer (trade name 9010 and 9011 silicone elastomer mix, Dow Corning), PEG-10 dimethicone crospolymer (trade name KSG-20, Shin-Etsu), and dimethicone PEG-10/15 crospolymer (commercial name KSG-210, Shin-Etsu).
It was found that the selection and amount of emulsifier is important for obtaining films that provide water vapor resistant properties. Due to the fact that the emulsifier itself can be detrimental to the formation of a film resistant to water vapor or negatively affect the durability of performance through repeated hair washes, the compositions preferably have the lowest level emulsifier — an inhant capable of producing a stable emulsion. Water-in-silicone emulsifiers will typically be present in the composition in an amount from about 0.001% to about 10% by weight, especially in an amount from about 0.01% to about 5% by weight, and more preferably, less than 1% by weight. In other embodiments, the emulsifier may be absent. In compositions where the emulsifier is extremely low or absent, the composition can be of the "shake well" type such that the composition forms a
In one embodiment of the invention, the one or more hydrophobic particulate material and the film former are first dispersed or dissolved in the phase of silicone oil or a water-in-oil or water-in-silicone emulsion. The oil or silicone is subsequently mixed with the aqueous phase to form the emulsion. Emulsions will typically have hydrophobic film former and any hydrophobic pigments dispersed or dissolved predominantly in the oil or silicone phase.
In some embodiments, it has been found desirable to include one or more agents that improve the shine of the hair treated with the compositions of the invention. Hydrophobic particulate materials, particularly hydrophobically modified smoked oxides, such as alumina and silica, give a matte finish to the hair, which may be undesirable from the consumers' point of view. It has been found that the shine can be restored to the hair, without sacrificing water resistance, by including one or more of the agents that modify the shine of the hair. The gloss-enhancing agent is preferably hydrophobic and is also preferably in the solid state at room temperature so that the particulate material does not become covered when the composition is applied to the hair. For example, lens-shaped particles, such as hemispherical PMMA, have been found suitable for imparting brightness. Such a commercially available material is a hemospheric methyl methacrylate crospolymer sold under the trade name 3D Tecn PW (Plain) XP (Kobo). Other suitable gloss enhancers include —polybutene, phenylpropyldimethylsiloxysilicate, hydrogenated polyisobutene, polyisobutene.
Silicone fluids, such as aryl-substituted siloxanes having high refractive indices, are also useful as gloss enhancers. Particular mention can be made of Phenyltrimethicone, which is available under the trade names SCI-TEC PTM 100 (ISP) and PDM20 (Wacker-Belsil), and Dimethicone Trimethylsiloxyphenyl (INCI name), which is available under the trade name PDM 1000 (Wacker - Belsil). The PDM20 material has a refractive index of 1,437 at 25 ºC. The PDM 1000 material has a refractive index of 1,461 at 25 ºC. Another suitable silicone fluid is trimethylsiloxyphenyl dimethicone. In general, any aryl-substituted silicone having a refractive index greater than 1.4 to 25 ° C is contemplated to be suitable for restoring shine to the hair treated with the compositions of the invention. Silicones, such as phenyl pentafenyl trimethyl trisiloxane or tetramethyl tetraphenyl trisiloxane, commercially available as URI fluids from Dow Corning URI, are also useful for improving gloss. Certain organic compounds, such as methoxy octyl cinnamate, can also be used to increase gloss.
The gloss enhancer is typically present from about 0.01% to about 5% by weight of the total composition. More typically, the gloss enhancer component will comprise the composition, including modalities in which the gloss enhancer is present in about 0.1%, 0.3%, 0.5%, 0.75%, 1%, 1, 25%, or 1.5% by weight of the composition. In addition to the above, the compositions according to the invention may comprise additional pigments, pearl luster, and / or dyes to combat appearance - white smoked alumina or smoked silica or otherwise to impart a desired color to hair, provided that such components do not undesirably affect the performance of the product. Inorganic pigments include, without limitation, titanium dioxide, zinc oxide, iron oxides, chromium oxide, blue ferric, and mica; organic pigments include: barium, strontium, calcium or aluminum inks, overseas, and carbon black; dyes include, without limitation, D&C Green% 3, D&C Yellow tt 5, and D&C Blue 4 1. Pigments and / or dyes can be coated or surface treated with one or more compatibilizers to aid in dispersion in the solvent. Preferred pigments and / or dyes are those of surface treated in order to make them hydrophobic. Preferred dyes include iron oxides, black iron oxide, brown iron oxide, CI 77489, CI 77491, CI 77492, CI 77499, iron oxide Red 10-34-PC-2045, black pigment 11, brown pigment 6, Pigment brown 7, Pigment Red 101, Pigment Red 102, Pigment Yellow 42, Pigment Yellow 43, red iron oxide, synthetic iron oxide, and yellow iron oxide. Fillers and several additional components can be added. Suitable fillers include, without limitation silica, treated silica, talc, Zinc stearate, mica, kaolin, nylon powders, such as Orgasol "" ", polyethylene powder, Teflon '", boron nitride, copolymer microspheres such as Expancel "" (Nobel Industries), Politrap "" (Dow Corning) and silicone resin micro beads (Tospear! "Y from Toshiba), and the like. Additional pigments / powder fillers include, but are not limited to, inorganic powders such as gums, chalk, Fuller's earth, kaolin, sericite, muscovite, phlogopite, synthetic mica, lepidolite, biotite, lithia mica, vermiculite, aluminum silicate , starch, smectite clays, alkyl and / or trialkyl ammonium smectites, chemically modified aluminum and magnesium silicate, organically modified montmorillonite clay, hydrated aluminum silicate, aluminum octenyl starch silicate barium succinate, calcium silicate, silicate de - magnesium, strontium silicate, metal tungstate, magnesium, silica, zeolite alumina, barium sulfate 7, calcined calcium sulfate (calcined plaster), calcium phosphate, fluorine apatite, hydroxyapatite, ceramic powder, metal soap (zinc stearate, magnesium stearate, zinc myristate, calcium palmitate, and aluminum stearate), colloidal silicone dioxide, and boron nitride; organic powder, such as polyamide resin powder (nylon powder), cyclodextrin —na, polymethylmethacrylate powder (PMMA), styrene and acrylic acid copolymer powder, powder
A A AA IN AAA A A ANA A NM A A ethylene glycol tear; white inorganic pigments, such as magnesium oxide, and rheology stabilizers / modifiers, for example, Bentone Gel and Rheopearl TT2. Other useful powders are disclosed in U.S. Patent No. 5,688,831, the disclosure of which is incorporated herein by reference.
The total amount of all such additional pigments, dyes, and fillers is not particularly restricted as long as the resistance to water vapor and reduced frizzy appearance of treated hair is not compromised. Typically, all additional pigments, dyes, fillers, etc., if present, collectively buy, range from about 0.1% to about 5% of the total composition, but more typically will comprise between about 0.1% about 2% by weight of the composition.
The compositions of the invention can optionally comprise other active and inactive ingredients typically associated with hair products. The nature of these other ingredients and their quantities should preferably be suitable for the formulation of a stable hair care product that forms a hydrophobic film on keratin fibers. Preferably, these other ingredients include at least one bioactive ingredient to improve keratin fiber. It is within the skill of the art to choose additional active and / or inactive ingredients for a hair care product. Other suitable ingredients include, but are not limited to, amino acids, antioxidants, chelating agents, dyes, emollients, emulsifying agents, excipients, fillers, fragrances, gelling agents, humectants, minerals, moisturizers, photo-stabilizing agents (for example, UV absorbers), preservatives, stabilizers, coloring agents, surfactants, viscosity and / or rheology modifiers, vitamins, waxes and mixtures thereof. It is contemplated that the inventive hair care product of the present invention may also include dandruff, deodorant, sunscreen, and / or antiperspirant ingredients. If present, the levels of such additional components should be judiciously selected so as not to have a negative impact on the ability of the compositions to reduce or prevent the frizzy appearance of the hair. Collectively, all such additional components will suitably comprise less than 5% by weight of the composition, but will typically comprise less than about 2% by weight, and will preferably comprise less than 1% by weight, most preferably - less than 0.5% by weight, and ideally less than 0.1% by weight of the total composition.
In one embodiment, the composition will be free or substantially free of cationic hair conditioning agents. By being substantially free of cationic hair conditioning agents it means that the compositions comprise less AEarAr AGA lit from the Arafarâncgia manãac of DNDOEKO / wrÁaArnaesr to more Arafaríval yet tame
In other embodiments, the compositions may contain an amount of cationic ingredients (quaternium) that are anhydrous or have a very low level of water, for example, less than 1% by weight. Suitable Quaternium Compounds include, without limitation, Polyquaternium-37 (INCI), Cyclopentasiloxane and Silicone Quaternium-18 (INCI), PEG-2 Methosulfate Di- - meadowfoamamidoetilmonium and hexylene glycol (INCI), and Cetrimonium chloride (INCI), to name some. Such Quaternium compounds, if present, will typically comprise from - about 0.05% to about 1.5% by weight of the total composition, and more typically, from about 0.1% to about 1% by weight.
The composition of the present invention can be formulated in any suitable form — including various rinse and rinse-free formulations, such as, but not limited to, shampoos, conditioners, serums, creams, sprays, emulsions, gels, ointments, liquids, dispersions, and the like.
In one embodiment, the compositions can be formulated for delivery by pump or aerosol to the hair. When formulated for aerosol delivery, a propellant will be included that is suitable for delivering the composition to the hair. Suitable propellants include, without limitation, n-butane, isobutane, isobutane and / or propane, nitrogen, carbon dioxide, compressed air, nitrous oxide, 1,2-difluoroethane, 1,1-difluoroethane, 1,1 , 1,2-tetrafluoroethane, dimethiol ether, and mixtures thereof. When reference is made to the total weight of the compositions of the invention described herein, such weight will be understood excluding the propulsion weight.
In one embodiment, a product is provided comprising an aerosol device including a container equipped with a dispenser, such as a dispensing valve, to deliver the aerosol composition from the container. The container is loaded with the composition according to the invention (for example, comprising one or more particulate materials, one or more film-forming agents, and volatile solvents). A suitable spray can be included in the container with the composition of the invention or can be included in a second container in a double chamber type aerosol device. When the propellant is included in the container with the other ingredients, it will typically be present from about 20% to about 50% by weight of the composition, including the propellant.
'Particularly harmful for preventing and reducing the appearance of frizzy in the hair and for reducing electric / frizzy hair strands are non-volatile water-soluble or water-dispersible components that can coat or mask the particles on the surface of the hair. hair, or that can attract or bind water, such as propylene — glycol or glycerin. Preferably, the collective amount of such non-volatile components
Less than about 1%, less than about 0.5%, below about 0.25%, less than about 0.1%, or below about 0.05%, based on the total weight of the composition. In some embodiments, the compositions are free of water-soluble or water-dispersible non-volatile components and, in particular, free of liquid components — water-soluble or water-dispersible.
Other optional ingredients include, without limitation, silicone elastomers which - can be incorporated to provide conditioning properties for the hair or improve the tactile properties of the film. Silicone elastomers are flexible, cross-linked silicones that can undergo large reversible deformations. Such elastomers can be formed, for example, by reactions catalyzed by platinum metals between SiH containing diorganopolysiloxanes and organopolysiloxanes having vinyl groups bonded to silicon. Suitable silicone elastomers include dimethicone / vinyl dimethicone crosspolymers, vinyl dimethicone / methicone silsesquioxane crosspolymers, and dimethicone / phenyl vinyl dimethicone crosspolymers. Examples include Dow Corning 9040, 9041, and 9506, and Shin-Etsu KSG-15, 16 € 17, and Shin-Etsu KSP-100, 101, 102, 103, 104, 105, 200 and 300. Elastomers are preferably present in a concentration of 0.01% to 10%, more preferably at a concentration of 0.1% to 5%, and more preferably at a concentration of 1% to 3%. Silicone elastomers do not form good films, and are not included in the calculation of the powder-to-film ratio. Vinyl crosspolymers dimethicone / methicone / silses- —quioxanos are such a silicone elastomer that they have been found to be particularly useful. Other ingredients that may optionally be present include, without limitation, conditioners (for example, Polyquaternium-37 / PG tipprilat / tridecet mixture), aesthetic modifiers (for example, spherical polymethyl methacrylate powder with a diameter of 4- 8 um), silicone resins (such as trimethylsiloxysilicate), thickeners (for example, PEG-150 / dodecyl alcohol / SMDI copolymer), sunscreens, preservatives, perfumes, etc.
Additional components can be incorporated as fillers or for various functional purposes, as is usual in the field of cosmetics. However, while additional consistent components for formulating the above cosmetic compositions can be included, the inclusion of additional ingredients is limited to those ingredients that do not interfere with reducing or preventing the frizzy 'appearance of hair and forming hair. a film resistant to water vapor.
Anhydrous compositions of the present invention can be suitably prepared by mixing the solvent (eg, ethanol and cyclomethicone pentamer) with the particulate materials and the film former, and, if present, the gloss enhancer and ingredients - optional. There is essentially no restriction on the order of addition or the form of mis- E A A o A o A A A NA can be performed using any suitable technique in the field.
For example, a Silversen mixer operating LART at 4000 rpm for about 4 minutes was found to be suitable.
Once complete, the composition can be packaged, for example, in a spray pump, or an aerosol spray, which is then loaded with propellant.
In certain embodiments, where the compositions are emissions prepared from different phases, each prepared separately, the phases are combined and the emulsion can be - formed by mixing or grinding at room temperature, or by any other suitable means in the field . : The present invention provides a method to prevent or reduce the appearance of hair frizzy / frizzy hair which comprises applying a hair care composition to a keratin fiber having a combination of a hydrophobic particulate material and a silicone-based hydrophobic film former, particularly on dry, damaged or curly hair.
As used herein, damaged hair is any type of hair fiber that suffers from damaging effects on appearance, touch - enhanced hair, including hair color treated as the drying process often results in damage to touch and resistance of the hair fibers.
However, the invention is not limited to applying to dry, damaged or curly hair.
The methods and compositions can be applied to any hair, including fine hair, to reduce or prevent the appearance of frizzy and to confer a water resistant film on the keratin fiber.
The composition of the invention can be applied to dry or wet hair.
The compositions according to the invention are preferably applied to the hair (mustache hair, beard, scalp, etc.), to provide resistance against frizzy appearance.
More preferably, the composition of the invention can be distributed through the hair strands that form the hair of a substantially uniform coating on the axis of the hair fibers.
Substantially uniform distribution can be achieved by spraying the composition through the hair and depositing the composition along the hair.
Substantially uniform distribution can also be achieved by applying the composition to the hair by hand and rubbing and spreading the composition over the hair.
The composition can also be distributed in a substantially uniform manner throughout the hair with a brush or comb.
The composition can be applied to the hair and left to remain in the hair.
Alternatively, the hair treated with the composition can be washed with water after applying the composition to the hair.
The composition can be applied again at any time, as desired - by consumers.
In one modality, the composition can be applied daily, Ama Adimaa altnadas asqamanal to hi aqamanalvicular ticular to the hair of the scalp, can reduce and / or prevent frizzy appearance of the hair, reduce the unwanted volume, improve the capacity of the consumer of control and maintain hair style (for example, making the hair more manageable and easier to handle), reduce the amount of electric / frizzy hair, improve the consumer's ability to get hair well aligned (for example, tame and soften unruly, curly, or flowing hair), give a desirable touch (for example, soft or smooth) to the hair, or improve the consumer's ability to retain or lengthen hair, or change hair volume when applied to hair, in particular scalp hair. In particular, the present invention confers these properties to the hair and protects it from aesthetically undesirable hair changes, particularly in wet conditions.
Hair volume refers to the structural body and space occupied in defined regions of hair strands and refers to the apparent thickness of hair in relation to vision and touch, which also relates to the body of the hair. Body can be defined by the combination of touch, weight and hair. Lack of body results in weak hair touch, having less handling capacity. In some embodiments, the compositions of the invention can reduce the volume of hair. For example, the compositions of the invention can reduce the volume of the hair by at least about 50%, at least about 60%, at least about 70%, at least about 75%, at least about 80%, at least least 90%, or even at least about 100%. In other embodiments, the compositions of the invention reduce the volume of the hair by about 50% to about 100%, about 65% to about 95%, about 70% to about 90%, or about 75% to about 85%. The benefits of the present invention can be conferred on the hair immediately after applying the compositions to the hair and can last for a period of time after the application of the compositions on the hair. The benefits can last for a period of at least 6 hours, at least 8 hours, at least 12 hours or less for 18 hours. Preferably, the benefits can last for an extended period of time. For example, in some modalities, benefits support at least 24 hours, at least 48 hours, at least 3 days, at least 5 days, or at least 1 week. In other modalities, the benefits have a semi-permanent duration, meaning that the benefits last: more than a week. In a preferred embodiment, the hair treated with the inventive combination may retain some or all of the benefits identified above, particularly resistance to the appearance of frizzy, after at least one hair wash, which means a single wetting cycle, shampoo application to it, and rinse the hair. In a more preferred modality, hair treated with the inventive combination can
The former can be tested using samples of hair treated with the compositions of the invention. Likewise, the compositions can be applied to a pet's hair, such as a dog, or fur materials, such as a fur coat, to improve hair aesthetics. Changes in hair volume can be determined in strands of hair using various techniques, including the technique described by C.R. Robbins and R.J. Crawford in the 'article "A Method to Evaluate Hair Body", J. Soc. Cosmet. Chem., 35, pp 369-377 (1984), the disclosure of which is incorporated herein by reference, and modified versions thereof. Others . Suitable means of assessing changes in hair volume involve taking a digital photograph of hair strands and analyzing the photographs using an image analysis program, which is a commercially available testing service known as the Image Analysis Method of MarTech Personal Care. Another suitable way to assess changes in hair volume involves pulling a strand of hair through radial rings of different dimensions and relating it to the force required to pull a measure of volume or body. An exemplary method of this alternative test is performed using a Dia-Stron Miniaure Tensil Tester 175 and is available as a commercially available test service known as the MarTech Personal Care Radial / Ring Compression Method. Preferably, the change in hair volume can be examined using the test protocol described below.
HAIR VOLUME TEST METHOD The method consists of preparing fine virgin European brown hair in the form of samples suitable for attaching a hairpin and a 2 cm ring. Each hair sample is set to the appropriate weight and length for fixing the ring and can be pre-treated by washing the locks 2 to 3 times. Each sample of virgin hair is combed 5 times with a large comb before obtaining any measurements. To test the volume of a strand of hair, the hair sample is pulled by the 2 cm ring at a constant rate. The force applied to the strands while the hair sample is pulled through the 2 cm ring is measured using a Dia-Sstron Miniature Tensil. Tester 170. The amount of work to pull each of the hair samples through the ring is obtained by calculating the area under the curve of the measured forces applied to the strands of hair along the length of the strands of hair. All measurements are obtained from dry hair. Five or six measurement runs (curves) are taken from the strands of the washed virgin hair prior to analysis. A baseline value is determined using the average amount of work calculated from the measurements made from the virgin hairs. The hairs of the rahale are not treated in the same way. The percentage increase in volume is determined by comparing the average amount of work measured from the strands of hair treated with. the average baseline values obtained from the work of virgin wicks. An increase in work is indicative of an increase in hair volume.
EXAMPLES Example 1 - This Example provides compositions to prevent or reduce the frizzy appearance of hair. Formulations 1A and 1B were prepared according to Table 1. 'Table 1 om! ese ”a jo | Smoked Alumina (Alu C 805 Alumina Aoxide | 1.00 q “126 Smoked by Evonik Industries) '' Dimethicone / Cyclopentasiloxane 15/85 2.50 2-40 (KOBO SF1214 / Momentive) Amodimethicone 2.00 2.66 (SF 1708 from KOBO / Momentive) Perfluorononil Dimethicone am | | Dimethicone / Dimethiconol 87/13 0.24 (Dow Corning Fluid 1403) Polyquaternium -37 / PG: an; 0.25 Tipprilate / Tridecet PEG-150 mixture / dodecyl alcohol / SMDI copolymer | | es Acrylates / copolymer of Dimethicone / Methyl Trime- 3.00 40/60 ticone (Shin-Etsu KP-549) 'SD 40B alcohol anhydrous 22.00 Methyl methacrylate crosspolymer 010 0ND1I0
Spherical Polymethyl Methacrylate powder having a diameter of 4-8 to 0.10 0.10 (Ganzpearl GM-0600 from Presperse, Inc.). Vinyl crosspolymer dimethicone / methicone /. necessary necessary cyclopentassiloxane
EEE Formulation 1A is an exemplary form of an anhydrous formulation. Formulation 1B provides an exemplary embodiment of a well-stirred emulsion. Emulsifiers can be added to Formulation 1B to provide a longer lasting emulsion or a stable emulsion. Suitable emulsifiers including ethoxylated silicone emulsifiers, for example, dimethicone PEG-10, dimethicone PEG / PPG-18/18, dimethicone PEG / PPG-19/19, dimethicone PEG / PPG-10/1 cetyl, among others .
The invention described and claimed herein should not be limited in scope by the specific modalities disclosed herein since these modalities are intended as illustrations of various aspects of the invention. Any equivalent modalities are intended to be within the scope of the present invention. In fact, various modifications of the invention in addition to those shown and described here will become apparent to those skilled in the art from the above description. Such modifications are also intended to be within the. scope of the appended claims. All publications cited herein are incorporated by reference in their entirety.

权利要求:
Claims (20)
[1]
1. Method to prevent or reduce the appearance of frizzy hair, CHARACTERIZED by understanding to apply to the hair a composition comprising: (a) a hydrophobic particulate material having an average particle size between '5 surrounds 1Onme about 20 um comprising an oxide of hydrophobically modified surface aluminum, said hydrophobic particulate material comprising from about 0.1% to about 2.0% by weight of said composition; (b) a hydrophobic silicone-based film former comprising from about 0.5% to about 20% by weight of said composition, and (c) a volatile hydrocarbon or silicone fluid having an above vapor pressure - about 0.01 mmHg at 20 ҼC; wherein the percentage by total weight of all water-soluble or water-dispersible non-volatile organic constituents in said composition is less than 5%, based on the total weight of the composition.
[2]
2. Method according to claim 1, CHARACTERIZED by the fact that said aluminum oxide is surface modified with alkylsilane groups.
[3]
3. Method according to claim 2, CHARACTERIZED by the fact that the alkylsilane is caprylylsilane.
[4]
4. Method according to claims 2 or 3, CHARACTERIZED by the fact that said alumina is smoked alumina.
[5]
5. Method according to claim 1, CHARACTERIZED by the fact that said silicone-based hydrophobic film former comprises dimethicone, amodimethicone, dimethicone, silicone polyurethane, silicone acrylate, or a combination thereof.
[6]
6. Method according to claim 5, CHARACTERIZED by the fact that said silicone-based hydrophobic film former comprises a silicone acrylate copolymer.
[7]
Method according to claim 6, CHARACTERIZED by the fact that said silicone acrylate copolymer is a copolymer comprising a poly (alkyl) acrylate backbone and a dimethicone polymer grafted to an alkylester side chain.
[8]
8. Method according to claim 1, 4, 6 or 7, CHARACTERIZED by the fact: that the composition applied to the hair is an emulsion comprising water.
[9]
9. Method according to claim 8, CHARACTERIZED by the fact that the composition additionally comprises alcohol! ethyl.
[10]
10. Method according to one of claims 1 to 9, CHARACTERIZED by the fact that the frizzy appearance of said hair is reduced or avoided after at least AAac Iavarnosnc
[11]
11. Composition for the prevention or reduction of the appearance of hair frizzy, CHARACTERIZED by understanding: (a) a hydrophobic particulate material having an average particle size between. about 10 nm and about 20 µm comprising a hydrophobically modified surface aluminum oxide said hydrophobic particulate material comprises about 0.1% to about 2.0% by weight of said composition; (b) a silicone acrylate film former comprising from about 0.1% to. about 20% by weight of said composition, and: (c) a silicone film former comprising from about 0.1% to about 110 20% by weight of said composition, and (d) a cosmetically acceptable carrier which comprises a silicone fluid having a vapor pressure above 0.01 mmHg at 20 ºC; wherein the total weight percentage of all water-soluble or water-dispersible non-volatile organic constituents in said composition is less than 5% based on the total weight of the composition.
[12]
12. Composition according to claim 11, CHARACTERIZED by the fact that said aluminum oxide is surface modified with alkylsilane groups.
[13]
13. Composition according to claim 12, CHARACTERIZED by the fact that said alumina is smoked alumina
[14]
14. Composition according to claim 12, CHARACTERIZED by the fact that the aluminum oxide is smoked alumina and the alkylsilane is caprylylsilane.
[15]
15. Composition according to claim 11, CHARACTERIZED by the fact that the silicone film former is selected from the group consisting of dimetholine, aminodimethicone, dimethicone, silicone polyurethanes, and combinations thereof, and in that volatile silicone it is selected from the group comprising cyclomethicone tetramer, cyclomethicone pentamer, cyclomethicone hexamer, trisiloxane, trimethyl methyl, or combinations thereof.
[16]
16. Composition according to claim 11, CHARACTERIZED by the fact that the composition is a water-in-silicone emulsion additionally comprising an emulsifier.
[17]
17. Composition according to claim 16, CHARACTERIZED in that 'said emulsifier comprises an organosiloxane polymer having side chains comprising groups - ((EO)', - and / or (PO), -, in which the sum of ne m is about 50 or less, the side chains being terminated with hydrogen or C1.s alkyl groups
[18]
18. Composition according to claim 11, CHARACTERIZED by the fact that
[19]
19. Composition according to claim 17, CHARACTERIZED by the fact that said silicone acrylate copolymer is a copolymer comprising a main structure of poly (alkyl) acrylate and a dimethicone polymer grafted to a chain. side alkyl ester.
[20]
20. Composition according to claim 19, CHARACTERIZED by the fact that the aluminum oxide is smoked alumina comprising a surface modification of the alkylsilane group, in which the silicone film former is selected from the group. consisting of dimethicone, aminodimethicone, dimethicone, silicone polyurethanes, and combinations thereof, and in which volatile silicone is selected from the group comprising '10 — cyclomethicone dendotetramer, cyclomethicone pentamer, cyclomethicone hexamer, trisiloxane , methyl trimethione, or combinations thereof.

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法律状态:
2020-09-29| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|

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2020-10-06| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

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2021-01-12| B09A| Decision: intention to grant|

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2021-03-02| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 02/03/2021, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

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申请号 | 申请日 | 专利标题

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US25865109P| true| 2009-11-06|2009-11-06|

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US61/258.651|2009-11-06|

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PCT/US2010/054199|WO2011056623A1|2009-11-06|2010-10-27|Methods and compositions for preventing or reducing frizzy appearance of hair|

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