AEROSOL HAIR FIXER PRODUCT TO HAVE HAIR AND / OR SHAPE HAIR

专利摘要:
1/1 summary "aerosol hair fixer for combing and / or shaping hair" spray; a propellant; a hair styling formulation comprising: (a) at least about 50% water; and (b) from about 0.01% to about 20% of a hair styling polymer, wherein the hair styling polymer is selected from the group consisting of: acrylate copolymers of two or more monomers (meth) acrylic acid or one of its simple esters; acrylate / acrylate copolymers of butyl acrylate hydroxy esters, 15 methyl methacrylate, methacrylic acid, ethyl acrylate and hydroxyethyl methacrylate; polyurethane-14 / ampyl acrylate polymer blend; and mixtures thereof. the product comprises about 2% or less alcohol or is substantially alcohol free and the product comprises 54% or less voc. 20
公开号:BR112014005646B1
申请号:R112014005646-3
申请日:2012-09-13
公开日:2019-03-26
发明作者:Susanne Birkel；Wassiliki Christopoulou；Paolo Dal Bò；Klaus Gänger；Bettina Giesen
申请人:Noxell Corporation；
IPC主号:

专利说明:

AEROSOL HAIR FIXING PRODUCT TO COMB AND / OR SHAPE HAIR [001] FIELD OF THE INVENTION [002] An aerosol hair fixing product for combing and / or shaping hair.
[003] BACKGROUND OF THE INVENTION [004] Hair styling products as hair fasteners are used to achieve different hairstyles and to hold locks of hair in place over a period of time. Typically, hair fasteners comprise film-forming polymers, which when applied to fibers containing keratin, such as human hair, form welds from fiber to fiber. These welds 'stick' the fibers and, therefore, give firmness to the hairstyle.
[005] Aerosol hair-care products generally comprise a pressure-resistant container, a mouthpiece, a propellant and a hair-styling formulation. A hairspray composition is normally ejected from these products by means of an aerosol forming nozzle. See, for example, document US2009 / 0104138A1. Propellants commonly used include volatile organic compounds (VOCs) propane, butane, 1,1-difluoroethane and dimethyl ether. However, VOCs are known to react with certain nitrogen oxides, which, in turn, can result in the formation of tropospheric ozone - a potential source of health problems. Alcohols are also frequently used in the formulation to comb hair, for example, to reduce surface tension. However, a high proportion of alcohol can leave your hair feeling dry and brittle and some
2/67 alcohols can cause an allergic response in some users. In addition, ethanol is flammable and is a VOC.
[006] There is a constant need, therefore, for more environmentally friendly, more sustainable and affordable hair fixing products, in particular for aerosol hair fixing products that comprise low VOC and alcohol levels. However, changing one or more features of an aerosol hair fixing product can be challenging since the interrelation between them affects product performance. For example, using a different propellant can result in an unacceptable droplet size of the ejected composition and therefore unsatisfactory firmness. In addition, certain polymers for styling hair may be incompatible with hair fixing products that comprise low levels of VOC and / or alcohol.
[007] When considering the aforementioned needs, therefore, the performance of good hair fixer should be maintained. Performance benefits can include, for example: excellent firmness; lasting firmness; good moisture resistance; conformable firmness; acceptable drying time; excellent natural and soft hair feeling; acceptable and / or non-sticky / sticky hands and hair. Of particular relevance to consumers is the sensation of natural hair and non-sticky hands and hair.
[008] SUMMARY OF THE INVENTION [009] In a first aspect, the invention relates to an aerosol hair fixing product for combing and / or shaping the hair in which the product comprises:
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i. a container comprising a container wall that surrounds a reservoir for storing a hair styling formulation and a propellant;
ii. the formulation for combing the hair comprises:
(a) at least about 50% water by total weight of the hair styling and propellant formulation; and (b) from about 0.01% to about 20% of a hair styling polymer in total weight of the hair styling formulation and propellant, where the hair styling polymer is selected from the group that consists of: acrylate copolymers of two or more (meth) acrylic acid monomers or one of their simple esters; copolymers of acrylates / hydroxy esters of butyl acrylate, methyl methacrylate, methacrylic acid, ethyl acrylate and hydroxyethyl methacrylate; blend of polyurethane-14 polymer / AMP-acrylates; as well as mixtures of these substances, and iii. a propellant, which is selected from the group consisting of propellants based on compressed gas, propellants based on liquefied gas and mixtures thereof; and iv. a spraying device attached to the container for dispensing the hair styling formulation from the container reservoir;
4/67 and where the product comprises about 2% or less of alcohol by total weight of the hair-styling and propellant formulation, or is substantially alcohol-free;
wherein the product comprises 54% or less of volatile organic compound by total weight of the formulation for combing hair and propellant.
[010] In a second aspect, the invention relates to a method for combing hair that comprises:
i. applying an ejected composition to the hair, in which the ejected composition is ejected by the hair fixing product according to the first aspect;
ii. dry the composition ejected on the hair.
[011] In a third aspect, the invention refers to the use of the product according to the first aspect to fix and / or shape a hairstyle.
[012] BRIEF DESCRIPTION OF THE DRAWINGS [013] The modalities of the present invention will now be described, by way of example only, with reference to the drawings in which:
[014] Fiqura 1 shows a lateral cross-sectional view of a sprinkler nozzle;
[015] Fiqura 2 shows a cross-sectional view along line A-A in Fiqura 1;
[016] Fiqura 3 shows a cross-sectional view along the line B-B in Fiqura 2;
[017] Fiqura 4 shows the enlarged section A of Fiqura 1;
[018] Fiqura 5 shows the enlarged section A of Fiqura 1 with a modification;
[019] Fiqura 6 shows a schematic view of a spray nozzle modality;
5/67 [020] Figure 7 shows a schematic view of a spray nozzle modality.
[021] DETAILED DESCRIPTION OF THE INVENTION [022] All percentages are by weight of the total composition / formulation, unless otherwise specified. All reasons are by weight, unless otherwise stated. All ranges of values are inclusive and combinable. The number of significant figures is not representative of either the limitation of the quantities indicated or the accuracy of the measurements. The term molecular weight, or PM, as used in this document refers to the weighted average molecular weight, unless otherwise specified. QS or QSP means enough quantity for 100%. + / indicates the standard deviation.
[023] All numerical quantities are understood to be modified by the word about, except when specifically stated otherwise. Except where otherwise indicated, it is understood that all measurements must be made at 25 ° C and under ambient conditions, with ambient conditions meaning conditions under about a pressure atmosphere and about 50% relative humidity. All of these weights, as per the aforementioned ingredients, are based on the active level and do not include carriers or by-products that may be included in commercially available materials, except where indicated otherwise.
[024] The modalities and aspects described in this document may comprise or be combined with elements or components of other modalities and / or aspects, although they are not expressly exemplified
6/67 in combination, unless otherwise specified, or an incompatibility is specified.
[025] The term aerosol as used herein means a suspension of thin droplets in a gas. The aerosol hairspray product atomizes the hairspray formulation, that is, it creates an aerosol. Due to surface tension, droplets are usually substantially spherical. As used herein, droplet size is defined as the median diameter of ejected droplets.
[026] The term aerosol hair care product does not cover mousse or foam products. The term mousse or foam as defined herein means a dispersion of gas bubbles in a liquid, commonly, mousse or foam compositions generally comprise more than 0.3% by weight of surfactant. The surfactant results in the formation of spherical bubbles that form the consistency of mousse or foam. However, foams and mousses can also be formed from surfactant-free formulations by other means, for example, special actuators, with the use of proteins for example, egg white protein. Typically, hair styling products that eject a mousse / foam also comprise from about 6% to about 16% by weight of propellant.
[027] The term aerosol hair care product does not cover gel products or products that comprise or eject a gel composition. The gels can be dispensed using a spray pump actuator. Gel formulations for hands typically have a viscosity of about 8,000 mPa-s to about 20,000 mPa-s depending on the desired performance. THE
The ejected spray gel composition typically has a droplet size of at least about 80 microns in diameter.
[028] As used herein, the term drying time on hair means that the amount of time it takes for the composition ejected to dry on the hair. The drying time on the hair is measured by spraying a specific pattern on the hair and then timing when the hair no longer feels sticky and damp on the hand.
[029] As used in this document, the term ejection flow is defined as the loss in total weight of the hairspray product in aerosol after 5 seconds of spraying. This value is normally divided by 5 to obtain grams per second. The ejection flow should achieve a balance between excellent firmness and sufficiently fast drying time. For example, if too much ejected makeup is applied to the hair in a short period, then the drying time on the hair can be unacceptably long.
[030] For use in the present invention, which comprises means other steps and other ingredients which do not affect the final result can be added. This term covers terms consisting of and consisting essentially of. The compositions and methods, uses, kits and processes in this document may comprise, consist of and consist essentially of the essential elements and limitations of the invention described hereinabove, as well as any additional or optional ingredients, components, steps or limitations described herein.
[031] For use in the present invention, the term polymer includes all materials produced by the polymerization of
8/67 monomers, as well as natural polymers. Polymers produced from only one type of monomer are called homopolymers. A polymer comprises at least two monomers. Polymers produced from two or more different types of monomers are called copolymers. The distribution of the different monomers can be calculated statistically or in blocks, both possibilities being suitable for the present invention. For use in the present invention, unless otherwise specified, the term polymer used in this document includes any type of polymer including homopolymers and copolymers.
[032] For use in the present invention, the term hair styling polymer means hair-fixing polymers that form films on a surface. In the context of hair, this surface is the surface of individual hair fibers, or a plurality of them. The polymer causes them to stick together, forming welds, which are cross-links that provide the fixing benefit. Together, these welds form a 'net cap' effect to provide the user with hair fixation and volume benefits. When the weld net is formed effectively, the fixing and volume benefits can last all day and offer good resistance to ambient humidity.
[033] The hair fixing product according to the present invention is suitable for application to human hair. The term suitable for application to human hair means that the compositions or their components, as described, are suitable for use in contact with the hair and scalp of a human being without causing
9/67 toxicity, incompatibility, instability, allergic response and similar problems.
[034] The term maximum incremental reactivity value or MIR value as defined in this document, means a measure of the increase in ozone formation per unit weight of a hydrocarbon added to the atmosphere. Therefore, MIR measured the ozone formation potential of a compound. A measurement similar to MIR is the potential for creating photogenic ozone or POCP.
[035] The term global warming potential or GWP as defined in this document is a measure of how a given mass of a compound is calculated to contribute to global warming compared to that of the same mass of carbon dioxide. The global warming potential of carbon dioxide, therefore, is 1. As used in this document, the GWP values are those calculated over a 100-year time horizon, unless otherwise specified.
[036] As used in this document, the term volatile organic compound or VOC, as used in this document means an organic compound gualguer that has an initial melting point less than or equal to 250 ° C measured at a standard pressure of 101.3 kPa . In one embodiment, VOC means compound gue which has a vapor pressure of 0.01 kPa or more at 20 ° C (ie, 293.15 K). Organic as used in this document means compound compound which contains at least the carbon element and one or more of hydrogen, halogen, oxygen, sulfur, phosphorus, silicon, or nitrogen. Certain volatile organic chemistry compounds that fall into this
10/67 definition are known for reacting photochemically with nitrogenic oxides in the presence of sunlight and, in turn, this produces tropospheric ozone and photochemical haze. In fact, in the United States, the definition of VOC for US legislative purposes (U.S. EPA 40 CFR 51. 100 [s]) defines only those organic compounds without negligible photochemical reactivity. Examples of compounds considered as VOCs for the purposes of this application include: ethanol, dimethyl ether, 1,1-difluoroethane, 1,1,1,2-tetrafluoroethane, pentane, n-butane, iso-butane, propane, trans-1 , 3,3,3-tetrafluoropropene, free formic acid (ie not its salt). Certain fragrances and plant extracts are also VOCs.
[037] The term non-flammable, as used in this document in terms of the hairspray product in aerosol, means that the product contains 1% or less of flammable components and the chemical heat of combustion is less than 20 kJ / g and also it is considered non-flammable after an ignition distance test and, if necessary, the closed space test. If the chemical heat of combustion is less than 20 kJ / g, then the aerosol is classified as flammable if ignition occurs over a distance of 15 cm or more. The ignition distance test for spray aerosols is a standard test in which the aerosol is sprayed in the direction of an ignition source at 15 cm intervals to see if ignition and sustained combustion occurs. Ignition and sustained combustion is defined as when a stable flame is maintained for at least 5 seconds. The ignition source is defined as a gas burner with a 4 to 5 cm high blue non-luminous flame. If no ignition occurs in the distance test
11/67 ignition, the closed space test will be performed and in this case, the aerosol is classified as flammable if the equivalent time is less than or equal to 300 s / m ³ or the deflagration density is less than or equal to 300 g / m ³ ; Otherwise, the aerosol is classified as non-flammable. The closed-space ignition test is a standard test in which the contents of an aerosol applicator are sprayed into a cylindrical test vessel containing a burning candle. If an observable ignition occurs, the time elapsed and the quantity discharged are observed. These definitions are those of the UN Test and Criteria Manual, Part III, Section 31. The chemical heat of combustion can be determined using the standard ASTM D 240 method.
[038] The term substantially free of, substantially free of, or grammatical equivalents thereof, as defined herein means less than about 1%, or less than about 0.8%, or less than about 0.5%, or less than about 0.3%, or about 0%.
[039] The inventors surprisingly overcame the above disadvantages and responded to the aforementioned needs by carefully selecting the specific combination of mutually compatible features so that the interaction between them results in a hair fixer with good performance. Firstly, the hair-fixing formulation according to the present invention is water-based, that is, it is an aqueous system instead of a predominantly alcohol-based system as is conventionally employed. This water-based system provides safety, sustainability, cost and environmental advantages. Second, the hair-fixing product comprises about 2% or less of alcohol by
12/67 formulation to comb hair and propellant, or is substantially alcohol-free. This additionally provides highly relevant benefits to the consumer since alcohol has a reputation for making hair brittle and dry, particularly for dry and / or naturally thin hair. Without being trapped by the theory it is believed that low alcohol concentrations help to reduce the drying effect, that is, it reduces a feeling of roughness and perceived brittleness of the hair. Consumers prefer a more natural looking and feeling hair. The inventors have found that the selected hair styling polymers are particularly suitable for use in this hair-fixing formulation. The inventors have found that the PM hair styling polymer, glass transition temperature, chemistry and water compatibility are important factors in creating a readily sprinkled, completely dissolved, low viscosity hair styling that provides an ejected composition that , after normal application to the hair, results in good styling firmness, good moisture resistance, no residue or flaking on the hair and is still easily washed. Polymers for combing selected hairs satisfy these criteria - in particular, polymers for combing hair, although highly compatible in water-based hair comb formulation, also provide moisture resistance at high levels of relative humidity for the hair. combed and are still easily washed with normal shampoo. In addition, the firmness offered by polymers to comb selected hair is good, but without causing a 'helmet head' feel to the consumer. The performance benefits achieved by the
Hair fixing products according to the present invention include excellent hair sensation, particularly natural hair sensation and excellent non-stickiness of hands and hair, good firmness and conformable firmness. In addition, it was surprisingly found that the selected polymers can be mixed in order to provide a more natural feel to the hair or greater styling firmness. Polymers for combing hair can be mixed in specific mixtures, for example, polymers for combing soft hair can be mixed with polymers for combing hard hair.
[040] A particular benefit of polymers for combing hair as described in this document is the low tackiness in hands and / or hair achieved. Surprisingly, the stickiness in the hands and / or hair of the present invention is less than that achieved by conventional ethanol-based aerosol hair fasteners. Surprisingly, this is because the firmness provided by the present invention is comparable to conventional aerosol hair fasteners.
[041] Each of the elements of the aerosol hair fixing product, as well as other relevant components, are described in detail later in this document.
[042] According to the first aspect, the present invention relates to an aerosol hair-fixing product, wherein the product comprises less than 54% VOC by weight of the total hair-styling and propellant formulation. In one embodiment, the hairspray product in aerosol has a maximum incremental reactivity (MIR) value of less than 1, or less than 0.8, or less than 0.7, or less than 0.4. The MIR value of a product
14/67 aerosol hairspray can be calculated by multiplying the weight fraction of each component of the hairspray product by its MIR value. The MIR values of common components of hair care products include: 2-aminomethyl propanol: about 15.08; water: 0.00; acetone: 0.43; ethanol: 1.69; isopropanol: 0.71. More MIR values are listed below. For example, a product comprising 0.2% 2-aminomethyl propanol and no other component with an MIR value above zero, would have an MIR value of 0.03. In one embodiment, the hair styling and propellant formulation has a combustion heat of about 5 kJ / kg to about 20 kJ / kg and / or the product is non-flammable.
[043] The surface tension and viscosity of the hair styling formulation can be important because after spraying, the ejected composition forms droplets, which fall on the hair. The ejected composition should then be mirrored along each individual hair fiber in order to form a thin coating layer on the hair, which dries quickly and also forms welds with other similarly coated hair fibers. In one embodiment, the surface tension, measured in accordance with the ISO 304 standard at 20 ° C, of the hair styling formulation is about 20 mN / m to about 50 mN / m, or about 20 mN / m about 40 mN / m, or about 28 mN / m to about 40 mN / m, or about 30 mN / m to about 40 mN / m. ISO 304 is a standard test method for measuring the surface tension of pure liquids or solutions.
[044] In one embodiment, the kinematic viscosity, measured according to the standard DIN EN ISO 3104, of the formulation for combing the hair is about 1 mm ² / s about
15/67 mm ² / s, or about 1 mm ² / s to about 15 mm ² / s, or about 2 mm ² / s to about 10 mm ² / s, or about 1 mm ² / sa about 4 mm ² / s, or about 1.2 mm ² / s to about 3 mm ² / s. DIN EN ISO 3104 is a standard test method for measuring the kinematic viscosity of liquids. Kinematic viscosity can be important because when the hair styling formulation is very viscous, then the hair styling formulation is very thick and cannot be sprinkled and / or is curdling - the inhomogeneous ejected formulation results, for example, in uneven sprinkling beam, spitting instead of sprinkling, and / or ejection of shapeless masses. This can be specifically important when a propellant based on compressed gas is used because the propellant is in gaseous form and therefore cannot function as a cosolvent.
[045] The average droplet size of the ejected composition is about 10 microns to about 80 microns, or about 15 microns to about 60 microns, or about 15 microns to about 50 microns, or about from 20 microns to about 35 microns. Droplets smaller than about 10 microns are not suitable for the present invention due to safety concerns - the droplets can enter the lungs and cause health problems. Droplets larger than about 100 microns are very large and therefore unsuitable. In one embodiment, the droplet size is not greater than 80 microns. Hairspray products that are spray pumps usually have a very large droplet size and are therefore unsuitable. The aerosol hair fixative is not a spray pump.
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[04 6] 0 size in droplet is measured with the use of a technique based in diffraction in laser. The diffused light is focused by an lens focusing in a layout
of Fourier and collected by the detector array. The angle at which a particle / droplet diffuses light is inversely proportional to its size. The detector array is composed of more than 30 individual detectors, each of which collects the light diffused by a particular range of angles. The diffusion pattern of the sprinkler is captured, which is what is measured. Measuring the diffraction angle determines the particle / droplet size. A Malvern Spraytec EPCS 4.0 is used with a 450 mm lens type, serial number 237. Software: RT Sizer 5.0. Test duration: 4.00 0 ms. Data Capture Rate: 20 0 Hz. Minimum measurable droplet size: 0.8 micron. Maximum droplet size that can be measured: 300 microns. Distance
in between the mouthpiece and the beam laser: 140 mm. [047] 0 product ejection flow fastener for hair is in fence in 0.10 g / second to fence in 0.40 g / second, or in fence in 0.20 g / second to fence in 0.35 g / second, or in fence in 0.20 g / second to fence in 0.30 g / second, or in fence in 0.20 g / second to fence in 0.25 g / second. If O flow in ejection is greater than about 0.45 g / second,
so the drying time on the hair will be too high for consumer satisfaction. The ejection flow can typically be adjusted by changing the pressure inside the container (increased pressure correlates with faster ejection flow) and / or the opening diameter in the sprinkler and / or holes in the actuator (smaller diameter correlates slower ejection flow).
17/67 [048] The drying time on the hair of the ejected composition can be from about 0.5 min to about 7 min, or from about 1 min to about 5 min, or from about 1 min to about 2 min.
[049] The formulation for combing hair comprises of
about 0.01% about 20%, or about 1% to fence 16%, or in about 2% a about 12%, or fence in 3% about in 8%, or about 4% about 7% in one polymer for to comb the hair, by weight total gives
formulation to comb hair and propellant.
[050] The hair styling polymer is selected from the group consisting of: acrylate copolymers of two or more (meth) acrylic acid monomers or one of its simple esters; copolymers of acrylates / hydroxy esters of butyl acrylate, methyl methacrylate, methacrylic acid, ethyl acrylate and hydroxyethyl methacrylate; blend of polyurethane-14 / ΑΜΡacrylates copolymer; and mixtures thereof. Balance® CR by Akzo Nobel is an acrylate copolymer of two or more (meth) acrylic acid monomers or one of its simple esters. In one embodiment, the polyurethane-14 / ΑΜΡacrylates copolymer blend is the blend of an acrylate copolymer and a polyurethane polymer. Acudyne ™ 1000 is a copolymer of acrylates / hydroxy esters butyl acrylate acrylates, methyl methacrylate, methacrylic acid, ethyl acrylate and hydroxyethyl methacrylate. DynamX® H2O from Akzo Nobel is the blend of an acrylate copolymer and a polyurethane polymer, that is, the blend of polyurethane copolymer14 / AMP-acrylates. Balance® CR by Akzo Nobel is an acrylate copolymer of two or more (meth) acrylic acid monomers or one of its simple esters. In a
18/67 modality, the hair styling formulation comprises two or more different hair styling polymers, in which the hair styling polymer is selected from the group consisting of: acrylate copolymers of two or more acid monomers (met) acrylic or one of its simple esters; copolymers of acrylates / hydroxy esters of butyl acrylate, methyl methacrylate, methacrylic acid, ethyl acrylate and hydroxyethyl methacrylate; blend of polyurethane-14 / ΑΜΡacrylates polymer; and mixtures thereof. In one embodiment, the hair styling formulation comprises all three of the hair styling polymers listed above. In one embodiment, the product is substantially free of octyl acrylamide / acrylate / butyl aminoethyl methacrylate copolymers. Amphomer® is an octyl acrylamide / butylaminoethyl methacrylate copolymer.
[051] In one embodiment, the formulation for combing hair comprises about
3% to about 20% of a single hair styling polymer, in which the only hair styling polymer is selected from the group consisting of:
copolymers of acrylates of two or more monomers of (meth) acrylic acid or one of its simple esters;
copolymers of acrylates / hydroxy esters of butyl acrylate, methyl methacrylate, methacrylic acid, ethyl acrylate and hydroxyethyl methacrylate. In one embodiment, the hair styling formulation comprises from about 4% to about 7% of a hair styling polymer which is the only hair styling polymer and the hair styling polymer is a copolymer of acrylates of two or more monomers of (meth) acrylic acid or one of its simple esters. As used
19/67 in this document a single hair styling polymer means that the hair styling formulation comprises only one type of hair styling polymer and other hair styling polymers are not present and in which the other hair styling polymers are not present do not fall within the definition provided for the only polymer to comb the hair.
[052] In one embodiment, the hair comb formulation comprises a mixture of polymers to comb the hair. The mixture may comprise a hard polymer for combing hair and a soft polymer for combing hair. As used herein this hard hair styling polymer is a hair styling polymer that provides excellent styling firmness and that styling firmness is more pronounced as the concentration of the hard styling polymer in the hair styling formulation increases. . However, high concentrations of hard polymer for combing hair typically have a negative effect on the feel of the hair, that is, consumers find the palpable sensation of the hair unacceptable, for example, rough. As used herein, soft hair styling polymer is a hair styling polymer that provides excellent natural hair feel, that is, smooth and / or particularly soft hair feel, but typically the styling strength provided is limited .
[053] In one embodiment, the hair styling formulation comprises from about 3% to about 20% of a single hair styling polymer, where the only hair styling polymer is a hard hair styling polymer. hair.
20/67 [054] The softness and hardness of the polymer for combing the hair depends on the PM and the glass transition temperature of the polymer for combing the hair and also on the chemistry of the polymer for combing the hair, that is, on the chemistry of the monomers .
[055] In one embodiment, the hard hair styling polymer has a glass transition temperature greater than or equal to 10 ° C and the soft hair styling polymer has a glass transition temperature less than 10 ° C. Glass transition temperature or T _g , as used herein, means the lowest temperature at which a polymer can be considered fluidizable, which means that polymer chains can slide through each other when a force is applied. AT _g as used in this document can be measured according to DIN EN 61 006.
[056] In one embodiment, the PM of the polymer (s) for combing the hair is about 10,000 g / mol to about 200,000 g / mol, or about 20,000 g / mol to about 150,000 g / mol. In one embodiment, the hard hair styling polymer has a PM of about 90,000 g / mol to about 200,000 g / mol. In one embodiment, the soft hair-styling polymer has a MW of about 10,000 g / mol to about 90,000 g / mol.
[057] The styling firmness provided by increasing the amounts of the soft hair styling polymer in the hair styling formulation increases, but then stabilizes. In other words, the soft hair styling polymer has the maximum styling firmness it can provide. Consequently, it may be advantageous to provide a mixture of a hard polymer for combing hair and a soft polymer for combing hair.
21/67 [058] In one embodiment, the hard hair styling polymer is selected from the group consisting of: acrylate copolymers of two or more (meth) acrylic acid monomers or one of its simple esters; copolymers of acrylates / hydroxy esters of butyl acrylate, methyl methacrylate, methacrylic acid, ethyl acrylate and hydroxyethyl methacrylate; and mixtures thereof. In one embodiment, the soft hair styling polymer is selected from the group consisting of: a blend of polyurethane-14 / AMP-acrylates polymer; polymers for combing latex hair; polyester; and mixtures thereof. In one embodiment, the soft hair styling polymer is a blend of polyurethane-14 / ΑΜΡacrylates polymer or a latex hair styling polymer. In one embodiment, the soft hair styling polymer is a polyurethane polymer. The polyurethane polymer can be a blend of polyurethane-14 / AMP-acrylates polymer. In one embodiment, the hair styling formulation comprises an additional soft hair styling polymer, wherein the additional soft hair styling polymer is selected from the group consisting of: PVP polymers (polyvinylpyrrolidone); PVPVA copolymers (vinylpyrrolidone / vinyl acetate copolymers); polyester; and mixtures thereof.
[059] In one embodiment, the hair styling formulation comprises a mixture of: a soft hair styling polymer that is a blend of polyurethane-14 / AMP-acrylates polymer or a latex hair styling polymer; and a hard hair styling polymer selected from the group consisting of: acrylate copolymers of two or more acid monomers
22/67 (met) acrylic or one of its simple esters; and copolymers of acrylates / hydroxy esters of butyl acrylate, methyl methacrylate, methacrylic acid, ethyl acrylate and hydroxyethyl methacrylate. In one embodiment, the blend is the combination of: a soft polymer for combing hair which is a blend of polyurethane polymer14 / AMP-acrylates or a polymer for combing latex hair; and both of the following two polymers for combing stiff hair: acrylate copolymers of two or more (meth) acrylic acid monomers or one of its simple esters; and copolymers of acrylates / hydroxy esters of butyl acrylate, methyl methacrylate, methacrylic acid, ethyl acrylate and hydroxyethyl methacrylate. In one embodiment, a mixture comprises a polyester and an acrylate copolymer of two or more (meth) acrylic acid monomers or one of its simple esters. In one embodiment, polyester is a polymer of polyester-5. In one embodiment, the blend comprises at least 2, or at least 3, polymers for combing different hair. An example of a polyester-5 polymer is AQ® 48 Ultra Polymer from Eastman Chemical Company.
[060] In one embodiment, the ratio of the weight of the hard polymer for combing the hair to the weight of the soft polymer for combing the hair (hard: soft) in the mixture is about 10: 1 to about 1:10, or from about 10: 1 to about 1: 2. In an embodiment in which the mixture comprises at least 2 polymers to comb different hairs, or only 2 polymers to comb different hairs, the hard: soft weight ratio can be from about 10: 0.5 to about 9: 3, or about 10: 1 to about 9: 2. In an embodiment where the mixture comprises at least 3
23/67 polymers to comb different hairs, or just 3 polymers to comb different hairs, the hard: soft weight ratio can be about 10: 1 to about 6: 4, or about 10: 2 to about of 8: 3.
[061] In one embodiment, the hair styling formulation additionally comprises an additional ingredient selected from the group consisting of: octyl acrylamide / acrylate / butyl aminoethyl methacrylate copolymers, panthenol compounds, silicone compounds, latex compounds and mixtures thereof. In one embodiment, the hair comb formulation additionally comprises a panthenol compound. In one embodiment, the panthenol compound is selected from the group consisting of: panthenol, a derivative of pantothenic acid and mixtures thereof. In one embodiment, the panthenol compound is selected from the group consisting of: D-panthenol ([R] -2,4-dihydroxy-N- [3-hydroxy-propyl)] - 3, 3dimethylbutamide), D / L-panthenol, pantothenic acids and their salts, panthenyl triacetate, royal jelly, pantethine, pantothin, panthenyl ethyl ether, pangamic acid, pantoyl lactose, vitamin B complex and mixtures thereof. In one embodiment, the hair styling formulation comprises a blend comprising a hard hair styling polymer, panthenol and optionally a soft hair styling polymer. In one embodiment, the formulation for combing the hair comprises panthenol. The panthenol compound has the ability to have a 'softening' effect on the hard polymer to comb the hair. The hair styling formulation can comprise from about 0.1% to about 0.6%, or from about 0.1% to about 0.3%, of a panthenol compound by total weight of the
24/67 formulation to comb hair and propellant. The ratio of the weight of the hard polymer to comb the hair and the weight of the panthenol compound can be from about 100: 6 to about 100: 1, or from about 100: 4 to about 100: 20. In one embodiment, the panthenol compound is D-panthenol or D / Lpanthenol. In one embodiment, the hair styling formulation further comprises a silicone compound. Silicone is useful because it creates a smoother feeling and also shine to the hair. In one embodiment, the silicone compound is a dimethicone compound. In one embodiment, the silicone compound is a PEG dimethicone, for example, PEG12 dimethicone. In one embodiment, the hair styling formulation additionally comprises an octyl acrylamide / butylaminoethyl acrylate / methacrylate copolymer. Amphomer® is an octyl acrylamide / butylaminoethyl methacrylate copolymer.
[062] In one embodiment, the hair-styling polymer is a water-compatible hair-styling polymer, alternatively a water-soluble hair-styling polymer. In one embodiment, the hair styling formulation is substantially free of a water-incompatible hair styling polymer. Balance® CR, Acudyne ™ 1000, DynamX® H2O from Akzo Nobel are compatible with water.
[063] In one embodiment, the hair comb formulation additionally comprises a polymer for combing latex hair. In one embodiment, the latex hair styling polymer is a polyurethane polymer and / or an aqueous polyurethane dispersion. In one embodiment, the polyurethane polymer is polyurethane-48.
25/67
Baycusan® C 1008 is a polyurethane-48, which is an aqueous polyurethane dispersion.
[064] In one embodiment, the product comprises less than about 0.5% of a cationic surfactant in the total weight of the formulation for combing hair and propellant. In one embodiment, the hair styling formulation comprises a polyurethane polymer and the hair styling formulation is substantially free of a cationic surfactant. In one embodiment, the only hair styling polymer is neither a latex hair styling polymer nor a polyurethane polymer. In one embodiment, the hair styling formulation is substantially free of a polyurethane polymer. This is due to the fact that, under certain circumstances, polyurethane polymers can cause hair residues after the ejected formulation has dried on the hair. These residues are unpleasant-looking and not preferred by consumers as they can be mistaken for dandruff.
[065] The stickiness in the hands and / or hair of the present invention is less than that achieved by conventional ethanol-based aerosol hair fasteners. In one embodiment, the product comprises from about 20% to about 50% VOC, in total weight of the formulation to comb the hair and the propellant and the propellant based on liquefied gas is DME. The benefit of low stickiness in the hands and / or hair is also achieved by this modality.
[066] Amphoteric polymers as well as anionic polymers such as Balance® CR are normally present in their neutralized or partially neutralized form. In one embodiment, the hair styling polymer is at least 60%, or at least 80% neutralized.
26/67 [067] Suitable neutralizers include potassium hydroxide, sodium hydroxide, triisopropanol amine (TIPA), 2-aminobutanol, 2-aminomethyl propanol (AMP), aminoethylpropandiol, dimethyl stearamine (Armeen 18 D), sodium silicate, tetrahydroxypropyl ethylenediamine (Neutrol® TE), ammonia (NH ₃ ), triethanolamine, trimethylamine (Tris Amino Ultra), aminomethylpropandiol (AMPD). In one embodiment, the neutralizing agent is 2-aminobutanol, ammonia, or 2-aminomethyl propanol.
[068] The hair styling formulation can additionally comprise a surfactant. The hair styling formulation can comprise 1% or less surfactant, or 0.6% or less, or 0.4% or less, or 0.3% or less, in total weight of the hair styling formulation and propellant. In one embodiment, the surfactant is selected from the group consisting of cationic surfactants, non-ionic surfactants, anionic surfactants and mixtures thereof. Cationic surfactants can be selected from the group consisting of cetrimonium chloride (for example, Kao Quartamin 60L-G; DEHYQUART A-CA / DETEX; ARQUAD 16-25 LO); cocamidopropyl hydroxysultaine (for example, REWOTERIC AM CAS); cocamidopropyl betaine (for example, TEGO BETAIN F 50); betaine; and mixtures thereof. Nonionic surfactants can be selected from the group consisting of: castor oil PEG-40 H (for example, NEODOL 91-8); lauret-4 (for example, DEHYDOL LS 4 DEO N); lauret9; decyl glycoside (for example, Plantacare 2000); polysorbate 20 (for example, TWEEN 20 PHARMA from UNIQEMA); hydrogenated castor oil PEG-25 (for example, SIMULSOL 1292 DF from SEPPIC); hydrogenated castor oil PEG-40 (for example, BASF CREMOPHOR CO 410); PPG-l-PEG-9
27/67 laurylglycolether (for example, Eumulgin L); polyalkylene siloxane oxide copolymer (Silwet® L7604 from Momentive); and polydimethylsiloxane methoxyylate (Silwet® L7600 from Momentive); and mixtures thereof. A suitable anionic surfactant is sodium dioctyl sulfosuccinate (DOSS or 1,4-dioctoxy-1,4-dioxobutane-2-sulfonic acid), an example of which is the OT-70 PG aerosol from Cytec. In one embodiment, the surfactant is selected from the group consisting of: castor oil PEG-40 H; cetrimonium chloride; lauret-4; lauret-9; decyl glycoside; cocamidopropyl hydroxysultaine; polysorbate 20; polyalkylene siloxane oxide copolymer; sodium dioctyl sulfosuccinate; and mixtures thereof. In one embodiment, the surfactant is selected from the group consisting of: castor oil PEG-40 H; decyl glycoside; cocamidopropyl hydroxysultaine; polysorbate 20; polyalkylene siloxane oxide copolymer; sodium dioctyl sulfosuccinate; and mixtures thereof. In one embodiment, the surfactant is selected from the group consisting of: polyalkylene siloxane oxide copolymer; and sodium dioctyl sulfosuccinate; and mixtures thereof.
[069] The hair styling formulation comprises at least about 50%, or about 50% to about 99%, or about 60% to about 99%, or about 70% to about 99% water in total weight of the formulation to comb the hair and propellant. When the product is substantially VOC free, the hair styling formulation can comprise from about 90% to about 99% water, by weight of the hair styling formulation and propellant.
[070] The product comprises about 2% or less of alcohol by weight of the total formulation for combing hair and
Propellant 28/67. In one embodiment, the product comprises about 1.8% or less, or about 1.5% or less, or about 1% or less, of alcohol by total weight of the hair-styling and propellant formulation, or is substantially alcohol-free. In one embodiment, the hair styling formulation is substantially free of ethanol and propanol. In one embodiment, the product comprises about 5% or less, or 2% or less, or about 1.8% or less, or about 1.5% or less, or about 1% or less, of alcohol aliphatic in total weight of the formulation to comb the hair and propellant. aliphatic alcohol as used herein means an alcohol that does not comprise an aromatic group.
[071JA The hair styling formulation can comprise at least one preservative. The preservative may be present in an amount less than about 1.5%, or 0% to 1%, or 0.01% to 1% by weight of the total hair-styling and propellant formulation. Suitable preservatives include: phenoxyethanol (eg, Euxyl® PE 9010), benzyl alcohol, propylene glycol, PHMB (polyaminopropyl biguanide), Optiphen (phenoxyethanol + caprylyl glycol) from ISP, Symtriol (1,2-octanodiol and 1,2 -hexanediol, methylbenzyl alcohol) from Symrise, octylsalicylate, 1,3bis (hydroxymethyl) -5,5-dimethylimidazolidine-2,4-dione (hydantoin DMDM; Nipaguard® DMDMH by Clariant),
EDTA (Rexat), butylene glycol (Dekaben
LMB) and types of paraben, for example, methyl paraben (for example, ester
PHB-methyl from Schütz & Co., or
SLI
Chemicals, or
Nipagin® M), propylparaben (ester
PHB-propyl from
Solvadis Specialties).
29/67 [072] The hair styling formulation may additionally comprise at least one perfume or fragrance. The aerosol hairspray product may comprise a maximum of about 0.5% perfume or fragrance, or about 0% to about 0.4%, or about 0.03% to about 0, 3%, in total weight of the formulation to comb the hair and propellant.
[073] The hair styling formulation can additionally comprise vitamins and amino acids such as: water-soluble vitamins such as vitamin Bl, B2, B6, B12, C, pantothenic acid, pantothenyl ethyl ether, panthenol, biotin and its derivatives, amino acids soluble in water such as asparagine, alanine, indole, glutamic acid and its salts, water-insoluble vitamins such as vitamin A, D, E and its salts and / or derivatives, water-insoluble amino acids such as tyrosine, tryptamine, viscosity modifiers, dyes, non-solvents volatile or diluents (water-soluble and insoluble), pearlescent auxiliaries, foam reinforcers, additional surfactants or non-ionic co-surfactants, pediculocides, pH-adjusting agents, perfumes, preservatives, chelators, proteins, active skin agents, sun blockers, UV absorbers, vitamins, niacinamide, caffeine and minoxidil. The product can comprise from about 0.01% to about 5% vitamins and / or amino acids, in total weight of the hair-styling and propellant formulation.
[074] The aerosol hair-fixing product may additionally comprise pigment materials such as inorganic pigments, nitrous, monoazo, disazo, carotenoid, triphenyl methane, triaryl methane, quinoline, oxazin, azine chemicals.
30/67 anthraquinone, as well as compounds that are indigoid, thionindigoid, quinacridone, phthalocyanine, botanicals, natural colors and water-soluble components. The product can comprise from about 0.0001% to about 5% of pigment materials, in total weight of the hair styling and propellant formulation. The formulation (s) described in this document may also contain microbicidal agents that are useful as cosmetic biocides. The product may comprise from about 0.01% to about 5% of microbicidal agents, by total weight of the hair-styling and propellant formulation.
[075] The hair styling formulation can have a pH of about 6 to about 10, or about 7 to about 10, or about 7 to about 9.
[076] The product comprises a propellant, which is selected from the group consisting of propellants based on compressed gas, propellants based on liquefied gas and mixtures thereof. The product may comprise a propellant based on compressed gas. Propellants based on compressed gas can be selected from the group consisting of air, nitrogen (N ₂ ), nitrous oxide (N ₂ O), carbon dioxide (CO ₂ ) and mixtures thereof. In one embodiment, the propellant based on compressed gas is air or nitrogen (N ₂ ). In one embodiment, the propellant based on compressed gas is nitrogen (N ₂ ). In one embodiment, the propellant based on compressed gas is not carbon dioxide (CO ₂ ) - particularly when a hair-styling polymer may precipitate due to the effect of CO ₂ in decreasing the pH of the hair-styling formulation. In addition, CO ₂ permeates, typically, through the plastic material for a greater or lesser extent ie 0%
Permeation is typically unreachable. The term air is defined in this document as a gas comprising approximately 78% nitrogen, 21% oxygen and 1% carbon dioxide, argon and other trace elements. Since the air content may vary, in one embodiment the propellant based on compressed gas is nitrogen gas. As defined in this document, compressed gases N ₂ , CO ₂ and N ₂ O are all non-flammable. N ₂ O has a GWP of 298. When the propellant is air, a maximum of 1 g is used as the propellant.
[077] CFCs are not suitable propellants for the present invention due to their ozone depleting properties.
For example, CFC-12 has a GWP of 10,900. In one embodiment, the product has a GWP of 100 or less, or 50 or less, or 20 or less, or 10 or less, or 5 or less.
[078] The product may comprise a liquefied gas propellant. The propellant based on liquefied gas can be selected from the group consisting of dimethyl ether (DME),
1,1-difluoroethane (HFC-152a),
1,1,1,2tetrafluoroethane (HFC-134a), pentane, n-butane, isobutane, propane, trans-1,3,3,3-tetrafluoropropene (HFO
1234ze) and mixtures thereof. In one embodiment, the propellant based on liquefied gas is dimethyl ether (DME) or 1,1-difluoroethane (HFC-152a). In one embodiment, the propellant based on liquefied gas is DME.
[079] For the purposes of the present invention, all of the liquefied gas propellants mentioned above are VOCs. In addition, as defined in this document, n-butane is flammable (MIR = 1.15, GWP = 4); iso-butane is flammable (MIR = 1.23); propane is flammable (GWP = 3.3,
MIR = 0.49); HFC-134a is not flammable (GWP = about
32/67
1,400, MIR = 0.00); HFC-152a is flammable (GWP = about 120, MIR = 0.02); HFO-1234ze is not flammable (GWP = 6, MIR = 0.09); DME is flammable (GWP = 1, MIR = 0.81).
[080] The product comprises 54% or less of VOC by weight of the total formulation for combing hair and propellant. In one embodiment, the product comprises from about 20% to about 50%, or from about 25% to about 45%, or from about 35% to about 42%, of VOC, in total weight of the formulation to comb hair and propellant. In another embodiment, the propellant is a liquefied gas-based propellant and the liquefied gas-based propellant is DME and in which the
product comprises of about in 25% about 45%, or in about 35% to about 42%, in DME. In another modality, O product understands less of what 15% VOC, or is
substantially VOC-free, in total weight of the hair styling formulation and propellant. In another embodiment, the product comprises from about 1% to less than 15% of a VOC, in total weight of the formulation for combing hair and propellant. In a modality in which the propellant is a propellant based on compressed gas, the product comprising less than 15% of a VOC, in total weight of the formulation to comb the hair and propellant.
[081] The present invention comprises a container comprising a container wall that encloses a reservoir for storing the hair comb formulation and a propellant. In one embodiment, the wall of the container comprises predominantly plastic material. In one embodiment, the container wall comprises at least about 80% plastic material, or about 85% to about 100%, by total weight of the container. The term plastic is defined in this document as any
33/67 polymeric material that has the ability to be shaped or molded, with or without the application of heat and then hardened to a desired shape that includes, polymers, resins and cellulose derivatives. In general, plastics are homo or copolymers of high PM cosmetic products contained in plastic containers are known. Plastic is a particularly advantageous material for containing cosmetic products because a greater variety of specific container shapes can be created. The use of plastic material (s) for a hairspray container provides an excellent means of delivering benefits of ease of use to the consumer. For example, it is very easy to provide tactile advantages,
example, grip features, contours
tactile can be designed with u im high grade in specificity and accuracy. Furthermore, one container in plastic can be shaped easily in one piece. The containers of sealed plastic have one potential in minor explosion than the containers in metal because,
upon excessive temperature, for example, due to the more elastic nature of plastic compared to metal, the plastic material can expand at a weak point in the container, for example, where the wall of the container is thinner. Gradually and eventually expansion at that weak point allows high pressure containers to escape through the formation of an orifice. In addition, the aesthetic benefits can also be realized more easily when a plastic container is used, for example, a translucent and / or transparent container material could be employed and in addition to many other aesthetic benefits. THE
34/67 From an environmental perspective, the use of a container that comprises predominantly plastic material has sustainability benefits and results in a reduced carbon projection area compared to alternative container materials. Plastic is also more easily recycled than metal.
[082] In one embodiment, the plastic material is selected from the group consisting of polyolefins, polyesters, polyamide, polyvinyl chloride, acrylic, polycarbonates, polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polystyrene, polyurethane and mixtures thereof. In one embodiment, the plastic material is selected from the group consisting of polyethylene terephthalate (PET), polyethylene naphthalate (PEN) and mixtures thereof. Polyethylene naphthalate is available from Hoechst Trevira GmbH & Co. KG, under the trademark Polyclear®, which includes Polyclear® N10, Polyclear® N90 and Polyclear® N100.
[083] The container may comprise polymers produced from components derived from renewable sources, that is, sources that are not petroleum-based. As used herein, the term sustainable polymer means polymers produced from components, for example, monomers, derived from renewable sources. Examples of renewable sources that are not petroleum based include plants and microorganisms. Sources of renewable plants that are not petroleum-based can include sugar cane, sugar beet, corn, potatoes, citrus fruits and woody plants. For example, ethanol can be produced from sugar cane. Ethanol can then be converted to ethylene, which can be polymerized to form polyethylene (PE). The monomers from which
35/67 polypropylene (PP), polyester and polyethylene terephthalate (PET) are synthesized, they can also be derived from renewable sources. Sustainable polymers can be synthesized from monomers derived from starch and / or cellulose, or by modifying the polymer itself. Cellulosics are thermoplastic resins produced through the chemical modification of cellulose.
[084] These sustainable plastic materials can be used as 100% of the plastic material used for the container wall, or mixed in the petroleum-derived plastic material at different levels in order to vary performance and / or for economic reasons. Certain materials derived from plant sources can be biodegradable. Sustainable polymers that exhibit biodegradability include aliphatic polyesters such as polylactic acid (PLA), polyglycolic acid (PGA), polybutylene succinate (PBS) and copolymers thereof, aliphatic-aromatic polyesters such as Ecoflex® from BASF and Biomax® from DuPont, poly- hydroxyalkanoate (PHA) and copolymers thereof. Thermoplastic starch materials (TPS) are also biodegradable, as are cellulosic. The incorporation of sustainable biodegradable polymers can be in 100% of the plastic material used or in blends with other materials, in order to control the speed or degree of biodegradation, or for economic reasons. The degree and speed of biodegradation can be compatible with the purpose and resources of the present invention. BASF's Ecoflex®, for example, is a biodegradable plastic material that biodegrades into soil or fertilizer. It is stable on the shelf for one year. It is particularly suitable for bags and films.
36/67 [085] The recycled plastic material can also be re-molded. This post-consumer paddle resin can also be suitable for the present invention when mixed with other resins or used as 100% of the plastic material used. Milled polyethylene again at certain densities (r-HDPE, r-LLDPE, r-LDPE), re-molded polypropylene (r-PP) and re-molded polyethylene terephthalate (r-PET) may be suitable.
[086] Loading materials can be mixed with plastic material. The advantages of incorporating filler materials into plastic material include: adjustment of physical properties of the plastic, such as mechanical strength, density and cooling time and also economic reasons. In one embodiment, the load is selected from the group consisting of: starches, fibers from renewable sources such as hemp, linen, coconut, wood, paper, bamboo, inorganic materials such as calcium carbonate, mica and talc. In addition, gas charges such as high pressure gas, foaming agents or microspheres can be added to the plastic material.
[087] Plastic materials can be defined by their glass transition temperature (Tg) and / or PM. When the container wall comprises at least about 80% plastic material, or from about 85% to about 100% plastic material, by total weight of the container, the wall thickness of the container can also be important. In one embodiment, the plastic material
is PET, where the glass transition temperature is about in 70 ° C a about 80 ° C and in what the wall thickness is in fence in 0.5 mm to fence in 3.2 mm. An example in container in PET comprises at following thicknesses in
37/67 wall: shoulder-shaped part about 0.65 mm; side wall about 0.50 mm; external base about 1.09 mm; base flexion about 2.90 mm. The container can be molded to create a specific external ergonomic shape or contour, for example, manually shaped contours. Said form facilitates the precise and effective use of the hair fixing product, for example, providing it is more grippy or non-slip. other tactile features can also be provided on the surface of the container, for example, bubbles. In one embodiment, the container is not cylindrical in shape. In addition, the container can be supplied with specific aesthetic features, such as color combinations and translucent or transparent portions. In one embodiment, at least 50% of the container wall is translucent or transparent. When externally visible, bi-compartment systems are less preferred by consumers for aesthetic reasons.
[088] In one embodiment, the container wall comprises predominantly metal material. In one embodiment, the metal material is selected from the group consisting of aluminum, tin-clad steel and combinations thereof. In one embodiment, the wall of the container comprises at least about 80%, or from about 85% to about 100% of metal material, by total weight of the container. In one embodiment, the container wall comprises at least about 80% of metal material by total weight of the container and the metal material is selected from the group consisting of: aluminum, tin-plated steel and combinations of themselves; and where the propellant is a propellant based on liquefied gas and in
38/67 that the propellant based on liquefied gas is selected from the group consisting of DME, 1,1-difluoroethane, 1,1,1,2-tetrafluoroethane, pentane, n-butane, iso-butane, propane, trans-1,3,3,3-tetrafluoropropene and mixtures thereof; or DME, 1,1-difluoroethane and mixtures thereof. In one embodiment, the wall of the container comprises an inner surface, the inner surface of which is coated with a corrosion inhibitor. In one embodiment, the corrosion inhibitor is a polyamide-imide varnish. A suitable corrosion inhibitor is HOBA 8460, supplied by HOBA Lacke und Farben GmbH.
[089] In one embodiment, the propellant and hair styling formulation can communicate freely within the reservoir. In one embodiment, the propellant and hair styling formulation are stored in a single compartment. In one embodiment, the aerosol hair-fixing product does not comprise a two-compartment system, especially when a portion of the container wall is translucent or transparent. In one embodiment, the reservoir comprises a plurality of compartments for storing the formulation for combing the hair and the propellant. In one embodiment, the propellant and hair styling formulation are not stored in separate compartments. In one embodiment, the reservoir does not comprise a plurality of compartments for storing the formulation for combing the hair and the propellant.
[090] The pressure inside the reservoir can be measured with a pressure gauge (GCAS # 60001439). The pressure inside the reservoir can be from about 100 kPa (1 bar) to about 1,600 kPa (16 bar) at 50 ° C. When a propellant is
39/67 a compressed gas, the pressure inside the container can be from about 600 kPa (6 bar) to about 1,200 kPa (12 bar), or from about 800 kPa (8 bar) to about 1,000 kPa (10 bar), or about 900 kPa (9 bar), at 50 ° C. When a propellant is a liquefied gas, the pressure inside the container can be from about 100 kPa (1 bar) to about 700 kPa (7 bar), or from about 300 kPa (3 bar) to about 500 kPa ( 5 bar) at 50 ° C. In one embodiment, the reservoir comprises a maximum volume of 220 ml of formulation for combing hair and propellant.
[091] The product comprises a spraying device attached to the container to dispense the formulation to comb the hair from the container reservoir. In one embodiment, the spray device comprises a spray nozzle. In one embodiment, the sprinkler device comprises a sealing valve and an actuator. The sealing valve and actuator can be produced from plastic material or not. The valve and actuators are, for example, available from Seaquist Closures (Freyung, Germany), Aptar, Precision and Coster (Switzerland). U.S. 3,819,090 relates to a valve cup device for pressurized application containers comprising a one-piece molded plastic body. U.S. 5,199,615A refers to an aerosol applicator. A suitable spraying device when the propellant is a propellant based on liquefied gas is as follows: Valve: Precision; Shank: 0.254 mm (0.010 inch); restricted tail piece: 1.270 mm (0.050 inch); vapor phase compartment: 0.508 mm (0.020 inch); actuator: Kosmos 0.406 mm (0.016 inch) Wirbel; immersed tube: capillary 1.524 mm (0.060 inch). The
40/67 suitable spray devices include NAZ DR 5113 and NAZ DR 5118 both from Aptar. The spray properties can be changed using a steam compartment hole in the stem, which can help to make a wet spray dryer using more vapor from the vapor phase. In an embodiment in which the propellant is a propellant based on liquefied gas, the spraying device comprises an orifice in the steam compartment. [092] In one embodiment, the spray nozzle is a spray nozzle 2 for dispensing a fluid comprising a first element 20, preferably a nozzle cup 20 and a second element 22, preferably a pin 22, the first and second elements 20, 22 form an assembly 80 comprising a fluid chamber 40, preferably a ring chamber, for receiving the fluid, at least one supply channel 42 for supplying the fluid from the fluid chamber 40 radially into a vortex chamber 4 4 and an outlet channel 18 with an inlet end 54 facing the vortex chamber 44 and an outlet end 56 to discharge the fluid into the environment 58 from the spray nozzle 2, characterized by the fact that the outlet channel 18 tapers in the direction of flow of the fluid and the degree of tapering is either constant in the direction of flow, or the degree of tapering decreases in the direction of flow.
[093] In one embodiment, the outlet end 56 has a maximum diameter (d _max ) between about 0.1 mm and about 0.8 mm, preferably between about 0.1 mm and about 0.25 mm, more preferably between about 0.1 mm and about 0.2 mm, most preferably between about 0.12 mm and about 0.15 mm.
41/67 [094] In one embodiment, the inner face 62 of the outlet channel 18 includes an angle (β), said angle (β) ranging from about 70 ° to about 130 °, preferably between about from about 80 ° to about 120 °, more preferably between about 80 ° and about 110 °.
[095] In one embodiment, the feed channel 42 comprises a first section 48 and a second section 50 after the first section 48 in the direction of flow and which is adjacent to the swirl chamber 44, the width (wl) of the first section 48 decreases in the flow direction and the width (w2) of the second section 50 is constant or decreases to a lesser extent in the flow direction.
[096] In one embodiment, the length (1) of the second section 50 in the direction of flow is equal to or less than the width (w2) of the second section 50 or / and the height (h) of the first or / and second section 48; 50 is decreasing in the flow direction or / and the width (w2) of the second section 50 is equal to the height (h) of the second section 50.
[097] In one embodiment, the ratio between the diameter (d _s ) of the swirl chamber 4 4 and the diameter (d _max ) of the outlet end 56 is about 2.5 to about 3.5.
[098] In one embodiment, the ratio of the sum of the cross-sectional areas of the at least one feed channel 42 at its outlet end 46 to the cross-sectional area of the outlet end 56 of the outlet channel 18 is between about 1.5 and about 2.7, preferably between about 1.7 and about 2.6.
[099] In one embodiment, the bottom 26 of the first element 20 exerts a claim against the flow direction of the fluid from about 0.5 N to about 1.5 N, preferably from about 1 N.
42/67 [100] In one embodiment, the bottom 26 of the first element 20 is tapered in the longitudinal direction 6, forming with the second element 22 a contact area that is defined by the penetration of the second element 22 during assembly, which creates pretension between the first element 20 and the second element 22 due to the slight flexing of the bottom 26 of the first element 20 in the longitudinal direction 4.
[101] In one embodiment, one of the first and second elements 20, 22 comprises an elastic portion, the elastic portion being elastically deformed by the other element 22, 20 when elements 20, 22 are mounted, protrusions 28 or / and the section of the first element 20 which carries the protrusions 28 preferably forming the elastic portion.
[102] In one embodiment, the first element 20 and the second element 22 are connected by means of a flexible connection piece 38, preferably a strip, the connection piece 38, which is more preferably molded or formed integrally with the first and second elements 20, 22.
[103] In one embodiment, an outlet layer 64 with a first orifice 66, a channel layer 68 with a second orifice 70 and slits 72 and an inlet layer 74 with orifices 76 are provided, said layers 64, 68, 74 are pressed so that the first orifice 66 forms the outlet channel 18, the second orifice 70 forms the swirling chamber 44, the slots 72 form the feed channels 42 and the holes 76 in the inlet layer 74 form. inlet holes for feeding fluid from fluid chamber 40 to feed channels 42, layers 64, 68, 74
43/67 are preferably separable from each other or / and each of the layers 64, 68, 74 is preferably replaceable.
[104] In one embodiment, an overlap area 78 is provided between the inlet holes and the feed channels 42, the size of the overlap area 78 or / and the distance between the overlap area 78 and the overflow chamber. swirling 44 are preferably adjustable, in which the inlet layer 74 and channel layer 68 are more preferably movable, most preferably rotatable, relative to each other in order to adjust the size of the overlap area 78 or / and the distance between the overlap area 78 and the swirl chamber 44.
[105] In one embodiment, spray nozzle 2 is produced from a plastic material selected from the following list: polyoxymethylene, polypropylene, polyethylene, polystyrene, acrylonitrile-butadiene styrene, silicone, polyamide, polyethylene terephthalate, an elastomer or mixtures thereof.
[106] Another modality of the first aspect refers to an aerosol hair fixing product for combing and / or shaping the hair in which the product comprises:
i. a container comprising a container wall that surrounds a reservoir for storing a hair styling formulation and a propellant;
ii. the formulation for combing the hair comprises:
(a) at least about 50% water by total weight of the hair styling and propellant formulation; and
44/67 (b) from about 0.01% to about 20% of a hair styling polymer in total weight of the hair styling formulation and propellant, where the hair styling polymer is selected from the group consisting of: copolymers of acrylates of two or more monomers of (meth) acrylic acid or one of its simple esters; copolymers of acrylates / hydroxy esters of butyl acrylate, methyl methacrylate, methacrylic acid, ethyl acrylate and hydroxyethyl methacrylate; a blend of polyurethane / acrylates polymer; as well as mixtures of these substances, and iii. a propellant, which is selected from the group consisting of propellants based on compressed gas, propellants based on liquefied gas and mixtures thereof; and iv. a spraying device attached to the container for dispensing the hair styling formulation from the container reservoir;
and wherein the product comprises about 2% or less of alcohol by total weight of the hair-styling and propellant formulation, or is substantially alcohol-free;
wherein the product comprises 54% or less of volatile organic compound in total weight of the formulation for combing hair and propellant. All the features of the first aspect described in this document are also applicable to this modality.
45/67 [107] In the second aspect, the invention relates to a method for combing hair which comprises the steps of: (i) applying to the hair an ejected composition, which is ejected by the product according to the present invention; (ii) drying the composition ejected on the hair. The method can also comprise a step that precedes step (i) in which a hair style or hairstyle is created. The method can also comprise a step that precedes step (ii), but after step (i), in which a hair style or hairstyle is created.
[108] In the third aspect, the invention relates to the use of the product according to the present invention to fix and / or shape a hairstyle. In a third aspect embodiment, the use comprises using the product according to the present invention to fix a hairstyle after creating a hairstyle. Alternatively, the use comprises using the product according to the present invention to create and shape a hairstyle.
[109] A fourth aspect refers to a kit that comprises at least one hairspray product in aerosol, as described in this document and a communication describing the use of the product. The kit can additionally comprise an item selected from the group consisting of a shampoo, conditioner, mousse, gel, a hair styling tool, hair dryer, curling iron and straightening plate. The tool for combing hair can be selected from the group consisting of hair bands, hair clips, combs and brushes.
[110] A fifth aspect concerns a formulation for combing hair that comprises at least 50% water and a mixture of polymers for combing hair, in which the
46/67 The mixture comprises a hard polymer for combing hair and a soft polymer for combing hair. Polymers for combing hard hair and polymers for combing soft hair can be as in the first aspect described in this document. The hair styling formulation according to the fifth aspect can be useful for hair fixing products that include aerosols and spray pumps and also mousses, gels, tonics and other forms of hair styling formulation. In a fifth aspect, the invention relates to the hair comb formulation described in the present document in the context of a hair comb product in addition to an aerosol hair clip. For example, mousses, gels and lotions that comprise this formulation for styling hair are also useful styling products. In one embodiment, the invention relates to a mousse, gel or lotion comprising a formulation for combing hair, wherein the formulation for combing hair comprises (a) at least about 50% water; and (b) from about 0.01% to about 20% of a hair styling polymer, in which the hair styling polymer is selected from the group consisting of: acrylate copolymers of two or more monomers (meth) acrylic acid or one of its simple esters; copolymers of acrylates / hydroxy esters of butyl acrylate, methyl methacrylate, methacrylic acid, ethyl acrylate and hydroxyethyl methacrylate; blend of polyurethane-14 / ΑΜΡacrylates polymer; as well as mixtures of these substances, and in which the mousse, gel or lotion comprises about 2% or less of alcohol, or is substantially alcohol-free and the mousse, gel or lotion comprises 7% or less of VOC. The products of
47/67
Mousse typically comprise a propellant, like those propellants described in detail in this document. Many elements of the first aspect described in this document are also applicable to this aspect.
[111] DETAILED DESCRIPTION OF THE DRAWINGS OF THE INVENTION [112] Figures 1 to 4 show views of a first embodiment of the spray nozzle 2 for dispensing a fluid. In the figures, the opposite longitudinal directions 4,
6, the opposite radial directions 8, 10 and the opposite circumferential directions 12, 14 of the spray nozzle are indicated by corresponding arrows. The longitudinal geometric axis 16 of the spray nozzle 2 extends in the longitudinal directions 4, 6, said longitudinal geometric axis 16 additionally forming the central geometric axis of the outlet channel 18.
[113] The spray nozzle 2 is assembled from a first element 20 and a second element 22, thereby forming an assembly 80. The first element 20 is a nozzle cup 20, that is, having a structure similar to a cup with a first section 24 extending in circumferential directions 12, 14 and forming a surrounding wall and a second section 26 forming the bottom 26. The second section 26 further comprises protuberances 28, said protuberances being similar to rib 28 that extend in the longitudinal direction 6 and in the radial directions 8, 10. As can be seen better in Figure 2, grooves 30 are provided in the circumferential directions 12, 14 between the protuberances 28, and said grooves are provided to form the channels 42 as described below.
The protrusions comprise an upper surface that serves as a
48/67 support surface 32 to support the second element 22, said support surface 32 facing the second element 22. Additionally, the protrusions 28 comprise lateral surfaces 34 facing the grooves 30 and feed channels 42, respectively.
[114] The second element 22 can be a pin 22 which is basically cylindrical in shape with an anterior face 36, said anterior face 36 expanding in the longitudinal direction 4. In this embodiment, the anterior face 36 has the shape of a cover spherical. The second element 22 is inserted into the first element 20, so that the front face 36 is supported on the supporting surfaces 32 of the protrusions 28. In this connection it should be mentioned that the second element 22 can also be formed by a sphere, which is pressed or stapled to the first element 20. Regardless of the chosen shape of the second element 22, it is preferable if the second element 22 can be snapped or clicked into place within the first element 20, even if the notches, notches corresponding or similar pressures to provide an adaptation by shape or / and an adaptation by force are not shown in the figures.
[115] The first element 20 and the second element 22 can be connected using a flexible connection piece
38, which in this case is formed by a strip. The piece of
connection 38 is formed or molded fully with O second element 22 and fur minus the first section 24 of first element 20. Up until even Monday section 26 of
first element 20 can be formed or integrally molded with the first section 24 of the first element
49/67 and consists of the same material. However, in this case, the second section 26 was subsequently pressed to the first section 24 since the second section 26 is produced from a different material, as will be described hereinafter. Regardless of whether the second section 26 is integrally formed with the first section 24 or not, the first element 20 comprises an elastic portion.
[116] As already indicated above, the first element 20 is produced at least partially from an elastic material that is more elastic than the material of the second element 22. In this case, the second section 26 of the first element 20 with its protuberances 28 and its bottom section 26 which carries said protuberances 28 is produced from the elastic material, the elastic material being more elastic than the material of the second element 22 and more elastic than the material of the first section 24 of the first element 20. Therefore, the aforementioned elastic portion of the first element 20 is formed essentially by the protrusions 28 and its bottom section that carry said protuberances 28. The elastic portion of the first element 20 is elastically deformed by the second element 22 when the elements 20, 22 are assembled.
[117] Additionally, the bottom 26, that is, the second section 26, of the first element 20 exerts a claim against the flow direction of the fluid from about 0.5 N to about 1.5 N, preferably about In other words, during the assembly of the spray nozzle 2, that is, when the second element 22 is inserted into the first element 20 a flexion of the bottom 26 of the first element 20 to a horizontal position occurs, generating through addition to that claim against the second element 22. This
The 50/67 claim ensures the adhesion of the first element 20 to the second element 22 when the fluid is dispensed at high pressure.
[118] Even if the pre-assembled state is not shown, it is preferable if the bottom section that carries said protuberances 28 is curved or convex towards the second element 22 and in the longitudinal direction 6 before the first and second elements 20, 22 be assembled.
[119] In one example, the spray nozzle 2 is assembled by inserting pin 22 into the nozzle cup 20 in the longitudinal direction 4 as shown in Figure 1, thereby creating a fluid chamber 40, feed channels 42 and a whirling chamber 44, although the outlet channel 18 is already provided in the second section 26 of the nozzle cup 20. The fluid chamber 40 is positioned in the radial directions 8, 10 between the first section 24 of the nozzle cup 20 and the pin 22, so that the fluid chamber 40 is formed as a ring chamber. The fluid chamber 40 receives the fluid to be dispensed from a fluid storage container or chamber, which is not shown in the drawings. In the longitudinal direction 4, the fluid chamber 40 adjoins the radial outer ends of the feed channels 42, so that there is a fluid connection between the fluid chamber 40 and the feed channels 42.
[120] As can be seen especially in Figure 2, the feed channels 42 are extending radially into an outlet end 46 of the feed channels 42, where the feed channels 42 are in contiguity with the swirl chamber 44, so that the fluid can be fed from the fluid chamber 40
51/67 through the feed channels 42 inside the swirl chamber 44. As shown in figure 3, the feed channels 42 are bounded in circumferential directions 12, 14 by the side surfaces 34 of the protrusions 28, in the longitudinal direction 6 by anterior face 36 of the second element 22, the second element 22 covering the grooves 30 to form the feeding channels 42 and in the longitudinal direction 4 by the bottom of the second section 26 which carries the protuberances 28.
[121] In Figure 2, the feed channels 42 comprise a first section 48 which is contiguous with the fluid chamber 40 and a second section 50 after the first section 48 in the flow direction and radial direction 10, respectively. The second section 50 is in contiguity with the swirl chamber 44 with the outlet end 46. As shown in figure 2, the width wl of the first section 48 decreases in the flow direction and in the radial direction 10. In contrast, the width w2 of the second section 50 is constant or decreases to a lesser extent than the first section 48 in the flow direction and radial direction 10.
[122] The protrusions 28, which form the side walls of the first sections 48, include an angle a, between the side walls of the protrusions as shown. In Figure 2, a central line 52 of the second section 50 is further indicated that extends in the radial directions 8, 10. Said central line 52 subdivides angle α into a first angle al and a second angle cx2. A maximum difference between the first angle al and the second angle a2 is 10 °, more preferably 5 ^o or I ^o , most preferably 0 ^o . Due to the enlarged anterior face 36 of the second element 22, the height h of the first section 48 or / and second section 50
52/67 of the feed channels 42 decreases in the flow direction and in the radial direction 10. Additionally, the length 1 of the second section 50 in the flow direction and in the radial direction 10 is equal to or less than the width w2 of the second section 50 In addition, the width w2 of the second section 50 is equal to the height h of the second section 50.
[123] As shown in figure 3, in the transition region between the support surfaces 32 and the side surfaces 34 the protrusions 28 comprise a radius rl. In order to have a compact cross-sectional shape, the ratio between radius rl and the width w, for example, wl or w2, of the feed channel is equal to or less than 1/3, with more preference equal to or less than what
1/4, with maximum preference equal to or less than
1/5.
[124] Even if the first element and the second element 22 are assembled, they are still mobile relative to each other in different relative positions. In the embodiment shown, elements 20 and 22 can be moved in the longitudinal direction 4, 6 relative to each other. Through this relative movement, the shape, dimensions or / and justification of the feeding channels 42 or / and the swirling chamber 44 is altered by elastically deforming the protrusions 28 or / and the bottom of the second section 26 of the first element 20 , that is, elastically deforming the elastic portion of the first element 20. In other words, it is easy to change the behavior of the spray nozzle 2. Additionally, means (not shown) are provided to lock the elements 20, 22 in their positions different relative.
[125] With reference to Figure 4, the aforementioned output channel 18 in the second section 26 of the first element 20
53/67 comprises an inlet end 54 facing the swirl chamber 44 in the longitudinal direction 6 and an outlet end 56 to discharge the fluid into the environment 58 from the spray nozzle 2 and the sprinkler, respectively, in the longitudinal direction 4. The outlet channel 18 tapers steadily in the direction of flow and in the longitudinal direction 4. Therefore, the outlet channel 18 comprises at least a portion of the taper, that is, the outlet channel 18 is tapered at least in part to the along the length of the outlet channel 18 towards the outlet. The taper can be continuous or in steps and can be angled or curved. In the embodiment shown, the tapering portion is contiguous with the outlet end 56 as well as the inlet end 54 of the outlet channel 18, so that the entire outlet channel tapers in the flow direction. The edge 60 surrounding the outlet end 56 has a radius r ₂ . The radius r ₂ is less than 0.03 mm, preferably less than 0.02 mm.
[126] Additionally, the outlet end 56 has a maximum diameter between 0.12 mm and 0.15 mm and more preferably a diameter about 0.14 mm with a corresponding maximum cross-sectional area to achieve a particle size average per volume (D ₅₀ ) with a flow rate greater than 0.24 g / s at 900 kPa (9 bar) (for fluid water is considered), which is equal to or less than 60 μιη, or preferably equal to or less than 50 μπι, or more preferably equal to or less than 45 μπι. This diameter additionally achieves an average particle size per
volume (D ₃₂ ) which is the same or smaller of what 50 μπι, or preference equal or less of what 45 μιη, or more preference equal or less of what 40 μπι. The percentage
54/67 mean of particles having a diameter less than 10 pm (% <10 pm) is less than 2%, preferably less than 1.5%, more preferably less than 1%.
[127] A larger nozzle geometry that has a diameter of (d _max ) about 0.8 mm and therefore that provides a higher flow, for example, greater than 3.2 g / s at 200 kPa ( 2 bar), reaches an average particle size per volume (D ₅₀ ) (for fluid water is considered) that is equal to or less than 120 pm, or preferably equal to or less than 115 pm. This diameter additionally reaches an average particle size per volume (D ₃₂ ) that is equal to or less than 100 pm, or preferably equal to or less than 96 pm. The average percentage of particles having a diameter less than 10 pm (% <10 pm) is less than 1.5%, preferably less than 1%, more preferably less than 0.5%.
[128] Above this, the outlet channel 18 has an inner face 62 that surrounds the outlet channel 18 and limits it in the radial direction 8. The inner face 62 of the outlet channel 18 includes an angle β, the said angle β preferably varies between 70 ° and 130 °, preferably between 80 ° and 120 °, more preferably between 80 ° and 110 °.
[129] As shown in figure 4, the degree of tapering of outlet channel 18 is constant in the direction of flow and in the longitudinal direction 4. In the mode shown this is achieved by at least a portion of tapering of outlet channel 18 or the entire outlet channel 18 which is in the form of a truncated cone or a truncated pyramid. It was also found that the pressure drop, that is, the energy dissipation in the spray nozzle 2 could be reduced and an additional reduction in the minimum pump pressure to dispense the fluid could be achieved by adjusting the ratio between the
55/67 sum of the cross-sectional areas of the feed channels 42 at their outlet end 46 6 and the cross-sectional area of the outlet end 56 of the outlet channel 18. This ratio is between about 1.5 and about 2.7, preferably between about 1.7 and about 2.6. In addition, the ratio between the diameter d _s of the swirl chamber 44 and the diameter d _max of the outlet end 56 of the outlet channel 18 is about 2.5 to about 3.5.
[130] Figure 5 shows the enlarged section A of Figure 1 with a first modification. In the following only the differences will be described, the same reference signals will be used for similar components or for the same components and the description above the first modality if
apply accordingly accordingly. [131] In contrast to channel outgoing 18 described with reference to Figures 1 to 4, the degree of tapering of output channel 18 of wake up with the Figure 5 decreases at
direction of flow and in the longitudinal direction 4. This is achieved by providing an inner face 62 of the outlet channel 18 which is curved in the direction of flow and in the longitudinal direction 4. In the embodiment according to Figure 5, at least a portion tapering of the outlet channel 18 or the entire outlet channel 18 is in the form of a truncated revolution hyperboloid.
[132] Figure 6 shows a second embodiment of the spray nozzle according to the invention. Since the second corresponds at least partially to the first modality according to Figures 1 to 5, then only the differences will be described, the same reference signals will be used for similar components or the same
56/67 components and the description above of the first modality applies accordingly accordingly.
[133] The spray nozzle 2 according to Figure 6 comprises at least three layers, that is, an outlet layer 64 with a first hole 66, a channel layer 68 with a second hole 70 and slits 72 and a layer inlet 74 with slit-like holes 76, said layers 64, 68 and 74 being pressed, although the inlet layer 74 is shown transparently in Figure 6 to increase the intelligibility of the design. Being pressed in this way, the first orifice 66 forms the outlet channel 18, the second orifice 70 forms the swirling chamber 44, the slots 72 form the feed channels 42 and the holes 76 in the inlet layer form inlet holes for feeding the fluid from the fluid chamber 40 into the feed channels 42. In the embodiment shown, layers 64, 68 and 74 are separable from each other and each of layers 64, 68 and 74 could be replaced, so that layers 64, 68 and 74 could also be considered as separate disks with corresponding slits and holes.
[134] As shown in figure 6, an overlap area 78 is provided between inlet holes 76 and feed channels 42 when viewed in the longitudinal direction 4. Inlet layer 74 and channel layer 68 are mobile - in this rotatable cases around the longitudinal geometric axis 16 - in relation to each other, although the inlet holes 76 and the feed channels 42 are formed so that the distance between the overlap area 78 and the swirl chamber 44 could be reduced by rotating the input layer 74 in relation to the
57/67 channel layer 68 in the circumferential direction 14 and could be enlarged by rotating the input layer 74 in relation to the channel layer 68 in the circumferential direction 12. Therefore, the distance between the overlap area 78 and the swirl chamber 44 is adjustable.
[135] Figure 7 shows a third embodiment of the spray nozzle 2 according to the invention. Since the third modality corresponds at least partially to the second modality according to Figure 6, then only the differences will be described, the same reference signals will be used for similar components or for the same components and the description above the first and the second modalities if applied accordingly accordingly.
[136] In contrast to the second embodiment, the inlet holes 76 and the feed channels 42 of the third embodiment are formed so that the size of the overlap area 78 could be reduced by rotating the entry layer 74 with respect to the channel layer 68 in the circumferential direction 12 and could be enlarged by rotating the input layer 74 in relation to the channel layer 68 in the circumferential direction 14. Therefore, the size of the overlap area 78 is adjustable.
[137] It should be mentioned that the principles of the second and third modalities could also be advantageously combined in a single spray nozzle 2, so that the size of the overlap area 7 8 as well as the distance between the overlap area 78 and the swirl chamber 44 could be adjusted by a relative movement between the input layer 74 and the channel layer 68.
58/67 [138] The spray nozzle 2 is produced from a plastic material, for example, polyoxymethylene, polypropylene, polyethylene, polystyrene, acrylonitrile butadiene-styrene, silicone, polyamide, polyethylene terephthalate or mixtures thereof. In addition, the spray nozzle may additionally comprise an elastomer.
[139] According to the invention, sprinkler nozzle 2 should be used in a sprinkler, said sprinkler being preferably a manually operated sprinkler, for example, a trigger sprinkler, the sprinkler comprising, more preferably, a fluid container that is manually compressible, a sprinkler with a pressurized fluid storage container or a manually actuating pumping device, or an electrically driven sprinkler.
[140] Pin bending and compression are problems that occur during the manufacturing process of spray nozzles that have an outlet end with a diameter (d _max ) less than 0.25 mm, in particular less than 0, 2 mm and even less than 0.15 mm. Therefore, high precision is required when assembling pin 22 and nozzle cup 20. Therefore, the spray nozzle 2 is produced by a precise injection molding process. In order to form the nozzle cup 20, pin 22 (molding tool) is centered on a counter tool by a self-positioning process. The taper, that is, the conical shape of the pin 22 facilitates the centering of the molding tool on the counter tool compared to a nozzle that has a cylindrical pin. In addition, a tapered molding tool (pin) is more robust than a cylindrical tool. Additionally, in order to provide an edge that
59/67 surrounds the outlet end 56 with a radius that is less than 0.03 mm, preferably less than 0.02 mm, micro-erosion is applied for tool making.
[141] Method of producing a hair fixer [142] First, two solutions are produced: a master mix and a second mix. The main mixture comprises the polymer (s) for combing the hair, which is (are) dissolved with agitation in water and components of the preservative system. A second mixture is created, which comprises water and the paraben-based preservative component (s) (for example, methyl paraben). Optionally the second mixture is heated in a microwave to 90 to 95 ° C in order to dissolve the paraben. The two mixtures are then combined to create the hair styling formulation. The hair styling formulation is then placed inside the container and then the container is sealed by crimping a sealing mounting cup that includes a valve system. Then the propellant is added under pressure and then the spray nozzle is added to the container.
60/67
00 0.2 6.0 1.0 0.25 0.15 0.15 0.15 0.2 0.3 0.2 Addto 100 Γ * · i — 1 sr 0.3 0.2 0.15 0.1 0.2 mrO 0.2 Addto 100 <Ω10.0 i — 1 0.2 0.3 0.15 0.05 0.2 0.3 0.2 Addto 100 Li) 3.35 6.00.15 0.3 0.15 0.1 mrO 0.2 0.2 Addto 100 mr10.0 5.6 0.35 0.3 0.15 0.15 0.3 mrOAddto 100 00 3.6 3.00.17 0.15 0.15 0.3 0.3 0.2Addto 100 CN 5.5 0.25 0.2 0.15 0.07 0.2 0.1Addto 100 ι — 1 Γ * ·<0 0.6 0.1 0.15 0.2 0.30.2 Addto 100 Examples Copolymer of acrylates / hydroxy esters acrylates ¹ Blend of polyurethane-14 polymer / ΑΜΡacrylates ² Copolymer of acrylates ³ 2-Aminopropanol (AMP) PEG-40 castor oilH, (90%) Disodium EDTA perfume Phenoxyethanol ⁴ 1.3- bis (hydroxymethyl) - 5,5-dimethylimidazolidine- 2.4- dione ⁵ Methylparaben ⁶ Deionized water
61/67
16 6.5 0.53 0.3 0.1 0.08 0.3 0.29 0.240 Addto 100 15 3.6 OΓ * ·0.37 0.2 0.1 0.03 0.3 0.29 0.1430 Addto 100 14 2.0 6.00.21 0.3 0.1 0.035 0.3 0.29 0.1430 Addto 100 13OΓ * · co 0.25 0.1 0.07 0.05 0.30.130 Addto 100 12 5.1 0.38 0.30.15 0.3 0.29i — 1 28 Addto 100 11 Omr OΓ * ·mrO 0.30.07 0.3 0.29 30 Addto 100 10 00 sr 0.49 0.20.1 0.3 0.29 30 Addto 1004.69 0.42 0.1 0.07 0.07 0.30.130 Addto 100 Examples Copolymer of acrylates / hydroxy esters acrylates ¹ Blend of polyurethane-14 polymer / ΑΜΡacrylates ² COω ocd 1—1 -H μ 0 cdΦ ΌO μ φ ê Ή i — 1OO O 2-Aminopropanol (AMP) PEG-40 castor oilH, (90%) Disodium EDTA perfume Phenoxyethanol ⁴ i — i (dH C+ J -HΦ Όê -η-H i — 1X OThe NM ídΌ ΌΉ -H LQλ and fd-H C ω no-Η -Η -Hn + j p1 1 Φ 1m m Ê<'-H'LD p CM Methylparaben ⁶ Ethanol Q Deionized water
Legend: = Acudyne® 1000 (45% solution); = DynamX H ₂ O® (25% solution); ³ = Balance® CR (45 solution); ⁴ = Euxyl® PE 9010; ⁵ = Nipaguard® DMDMH; ⁶ = Schütz PHB-methyl ester.
62/67 [144] Any of examples 1 to 8 can be placed in a predominantly metal or predominantly plastic container. The propellant can be a propellant based on compressed gas so that the product comprises 15% or less of VOC by weight of the total formulation for combing hair and propellant. The spray device may comprise the spray nozzle of claim 8.
[145] Any of examples 9 to 16 can be placed in the container where the wall of the container comprises at least about 80% of metal material by total weight of the container. The metal material can be selected from the group consisting of: aluminum, tin-clad steel and combinations thereof. The propellant is DME as stated earlier in the table.
[146] Performance data [147] Experiment 1 - Sensory data [148] Aerosol hairspray products according to the present invention that comprise formulations for combing hair selected from the example section above have been compared with a product to comb hair in aerosol with excellent performance. The standard aerosol hairspring product comprises: propellant of 50% DME, the container is a metal container, a hairspray formulation comprising 3% Amphomer as a hair styling polymer, about 38% ethanol and less than 1% water; and where the product comprises 95% VOC (these percentages are in the total weight of the formulation to comb the hair and propellant).
[149] Compositions ejected from these products are sprayed onto the hair and compared according to the criteria
63/67 sensory. When the difference between the product according to the present invention and the standard product is -1 to +1 (that is, a better or worse point), then an equal sign (=) is marked. When the difference is less than -1 or greater than 5 than +1 then a - or a + is marked, respectively. When the difference is greater than +2, then a ++ is marked.
Criteria Formulation to comb the hair of Ex. 4 Formulation to comb the hair of Ex. 9 Formulation for combing Ex 13 hair Sprinkler Device It comprises the spray nozzle of claim 8. It comprises a steam compartment orifice. It comprises a steam compartment orifice. Approximate VOC (%) <1 30 30 Propellant Nitrogen DME DME Total amount of hair styling polymer (%) 5 3 5 INITIAL FIRMNESS ¹ = = = DRYING TIME ² = = = SENSATION ³ ++ ++ ++ APPEARANCE ⁴ = = = APPEARANCE ⁵ = = = SENSATION ⁶ = = = SENSATION ⁷ = = =
Legend: ¹ = Firmness on the mannequin (less firmness for more firmness); ² = moisture after application (hair with a very dry feeling to hair 10 with a very wet feeling); ³ = Sticky hands / hair (not sticky to very sticky); ⁴ = Hair-looking mannequin (too natural for too much aggregate); ⁵ =: Residues on the mannequin hair (no residues for various residues); ⁶ = Feeling of mannequin hair after combining (too rough to too smooth); ⁷ = Run your fingers through the hair of the mannequin (hair added together for free flowing hair).
64/67 [150] Experiment 2 - Technical data [151] The definition and firmness given to a hairstyle by a composition can be determined by measuring, respectively, the 3-point bending force and the firmness factor. 3-point flexion strength methodology: 0.5 ml / g of hair styling formulation is applied to the curl and massaged for 1 minute. The curls are then dried in a drying cabin for 45 min at 45 ° C. The curls are then smoothed by fingers and dried overnight in a chamber at 20 ° C in 65% relative humidity. The measurement is produced with 5 positions recorded in the sample. The 3-point bending force is measured according to the methodology detailed in F. Frosch, F. Vogei, 6 ^the International Hair Science Symposium Of the German Wool Research Institute, Luneburg / Germany (1988). See also the DIN-EN-658-5 methodology from the North American National Standards Institute. An average value is calculated after 9 repetitions are performed (that is, n = 9).
[152] Firmness strength factor methodology (also known as curl retention): 0.5 ml / g of hair styling formulation is applied to the curl and massaged for 1 minute. Each curl of hair is then adjusted to 50% by weight of the curl and combed three times. The curls are braided and dried in a drying cabin for 45 minutes at 45 ° C. The bunches are then dried overnight in a 20 ° C climatic chamber at 65% relative humidity. The ripple retention measurements are taken on the following days. Climatic conditions are: 20 ° C at 85% relative humidity. The reading times are: after Oh, 1 h, 2 h, 3 h 5 h and 24 h (h means hour). The firmness strength factor is measured
65/67 according to the methodology detailed in CR Robbins, Chemical and Physical Behavior of Human Hair, 3rd edition, page 352, Springer-Verlag, New York, USA (1994). An average value is calculated after 3 repetitions are performed 5 (that is, n = 3).
[153] Table X details the 3-point bending force and the firmness factor after 1h, 5h and 24h after styling, after applying the formulations detailed below to comb the hair. When indicated, the formulation for combing hair is 10 as an example from the table in the example section above. Samples A to D were treated with hair comb formulations A to D, which comprise the hair styling polymer indicated in deionized water. The total hair styling polymer present is indicated in 15 square brackets. Samples α to γ (alpha to gamma) were control treatments as described below.
66/67
X ι — I Φ Λ (Ü Η
LO
CDe Si cd i tn »5 1.95 +/-0.628 51.81+/-12.56 90.65+/-1.83 52.21+/-8.99 14.72+ / -1.52 11.51+ / -1.08 beta(β) - 5 1.82 +/-0.62 49.97+ / -11.00 89.66+/-4.12 55.46+/-2.59 16.58+ / -1.97 12.53+ / -2.94 δ, fd <H 1—1 fd N / T 0.09 +/-0.01 92.76+/-19.32 77.37+/-1.94 30.98+/-1.87 10.12+ / -0.51 7.50 + / -1.08 Ex. 4 Φ (ti ”Ό o ° Cl) ^1/1 Φ O - 4-> σ,« ti CO N Η φ (ti Ή t Ό + · i — 1 3,211 + / -0.796 41.34 + / -6.87 91.34 + / -4.58 82.95 + / -6, 92 67.89 +/-3.92 65.19 +/-7.10 Ex. 1 . ° ° CO 2,231+/-0.358 57.61+ / -5.32 95.02+/-1.46 85.25+/-2.44 76.35+ / -2.75 73.58+ / -2.64 Q mixture of ¹ and ² (1: 1 ratio) [3%] 2.216 + / -0.449 43.33 + / -4.13 94.00 + / -1.79 83.39 + / -0.90 71.94 +/-1.82 67.31 +/-1.16 O  5 3.02 +/-0.70 41.55+/-3.53 90.72 + /- 5.59 74.6 +/-4.88 57.61+ / -4.89 51.04 +/- 4.7 ffl  5 2.48 +/-0.60 55.53+/-8.13 91,814+/-1,791 82.73+/-2,026 Γ * ·[- · LOi sr o r * + 60.9+ / -3.899 5 2.101+ / -0.413 50.70+/-7.46 Γ * ·1-1 co1 i — 1CO 00 + 0 70.95 + /- 4.64 54.18 + /- 7.83 50.75 + /- 7.71 Parameters Sample Hair styling polymer [% of hair styling polymer total] bending force of 3 points (N)1 break - firmness 3 point bending force (%) 3 ^the pause - elasticity Firmness Factor (%) after 0 h Firmness Factor (%) after 1 h Firmness Factor (%) after 5 h Firmness Factor (%) after 24 h

67/67 [155] The conclusions of experiment 2 include: samples left displayed untreated exhibited the weakest (ie, lowest) 3-point bending force and firmness factor. PVP VA 64 and PVP K30 are polymers for combing softer hair, which, in the context of the hair comb formulation according to the present invention, provide weaker firmness as well as resistance to lower moisture. Polymers for combing stiff hair, especially blends, show high moisture resistance - see values of 10 firmness factor after 24 h in Table X.
[156] The dimensions and values presented in the present invention should not be understood as being strictly limited to the exact numerical values mentioned. Instead, unless otherwise specified, each of these dimensions is intended to mean both the mentioned value and a range of functionally equivalent values around that value. For example, a dimension shown as 40 mm is intended to mean about 40 mm.

权利要求:
Claims (13)
[1]
1. Aerosol hair fixing product (120) for combing and / or shaping hair, characterized by the fact that the product (120) comprises:
i. a container comprising a wall of
container that wraps a reservoir (122) for store a formulation to comb the hair and one propellant; ii. being that the formulation to comb the hair comprises: (a) at least 50% water in total weight gives formulation to comb the hair and propellant; and
(b) from 0.01% to 20% of a hair styling polymer in total weight of the hair styling formulation and propellant, where the hair styling polymer is a mixture of hair styling polymers, the mixture comprising a hard hair-styling polymer and a soft hair-styling polymer, wherein the hard hair-styling polymer is selected from the group consisting of: acrylate copolymers of two or more (meth) acrylic acid monomers or one of its simple esters; octylacrylamide / acrylate / butylaminoethyl methacrylate copolymers;
copolymers of acrylates / hydroxy esters of butyl acrylate, methyl methacrylate, methacrylic acid, ethyl acrylate and hydroxyethyl methacrylate, and mixing thereof;
the soft polymer for combing the hair is selected from the group consisting of: blend of polyurethane-14 polymer / AMP-acrylates; polymers for
Petition 870180164502, of 12/18/2018, p. 7/16
[2]
2/6 combing the latex hair; polyesters; and mixtures thereof, and preferably comprises a blend of polyurethane-14 / AMP-acrylates polymer; and where the hard hair styling polymer has a glass transition temperature greater than or equal to 10 ° C and a molecular weight of 90,000 g / mol to 200,000 g / mol, and the soft hair styling polymer has a temperature of glass transition less than 10 ° C and a molecular weight of 10,000 g / mol to 90,000 g / mol; and wherein the weight ratio of the hard polymer for combing the hair to the soft polymer for combing the hair in the mixture is 10: 1 to 1:10, iii. a propellant, which is selected from the group consisting of propellants based on compressed gas, propellants based on liquefied gas and mixtures thereof; and iv. a spraying device attached to the container for dispensing the hair styling formulation from the container reservoir (122);
and where the product (120) comprises 2% or less of alcohol by total weight of the hair styling and propellant formulation, or less than 1% and where the product (120) comprises less than 15% volatile organic compound in total weight of the formulation to comb the hair and propellant.
2. Product (120) according to claim
1, characterized by the fact that the hair comb formulation comprises a surfactant, in which the surfactant is selected from the group consisting of cationic surfactants, non-ionic surfactants, anionic surfactants and mixtures thereof.
Petition 870180164502, of 12/18/2018, p. 8/16
[3]
3/6
3. Product (120) according to claim
1 or 2, characterized by the fact that the kinematic viscosity, measured according to the standard DIN EN ISO 3104, of the formulation to comb the hair is 1 mm ² / s to 25 mm ² / s, or 1 mm ² / s to 15 mm ² / s, or 2 mm ² / s to 10 mm ² / s, or 1 mm ² / s to 4 mm ² / s, or 1.2 mm ² / s to 3 mm ² / s.
[4]
4. Product (120) according to any one of claims 1 to 3, characterized by the fact that it comprises from 0.01% to 16%, or from 0.01% to 10%, or from 1% to 8% , or 2% to 6% of a hair styling polymer, in total weight of the hair styling formulation and propellant.
[5]
5. Product (120) according to claim
1, characterized by the fact that the propellant is a propellant based on compressed gas, the propellant based on compressed gas is selected from the group consisting of air, nitrogen, nitrous oxide, carbon dioxide and mixtures thereof.
[6]
6. Product (120) according to any one of claims 1 to 5, characterized in that the pressure inside the container is 600 kPa (6 bar) to 1,200 kPa (12 bar), or 800 kPa (8 bar) at 1,000 kPa (10 bar) at 50 ° C.
[7]
Product (120) according to any one of claims 1 to 6, characterized in that the spraying device comprises:
(I) a spray nozzle (2) for atomizing the hair comb formulation, said nozzle (2) comprising a fluid chamber (40), preferably a ring chamber, for receiving the hair comb formulation. reservoir (122) of the container, at least
Petition 870180164502, of 12/18/2018, p. 9/16
4/6 a feed channel (42) for feeding the hair-styling formulation from the fluid chamber (40) radially into a swirling chamber (44) and an outlet channel (18) with an end of inlet (54) facing the whirling chamber (44) and an outlet end (56) to atomize the hairspray formulation into the spray nozzle environment (2), where the outlet channel (18) is tapers towards the formulation of hair fixative; and / or
(II) sprinkling (2) to atomize the (The) a mouthpiece in formulation of fastener for hair, said nozzle (2) defining a direction axial and having a longitudinal axis (L-L) through her;
(b) at least one discrete entrance door, said entrance door having an associated entrance area, said entrance door not circumscribing said longitudinal axis (L-L) and being radially into it;
(c) flow area connecting said entrance door and said spray nozzle (2), said flow area comprises a surface of revolution near said longitudinal axis (LL), said surface of revolution convergingly directing the flow from said at least one inlet port to said spray nozzle (2); wherein at least a portion of the surface of revolution circumscribing said longitudinal axis (L-L) is curvilinear.
[8]
8. Product (120) according to claim
7, characterized by the fact that according to (I) outlet channel (18) it tapers constantly and / or a portion
Petition 870180164502, of 12/18/2018, p. 10/16
5/6 tapering of the outlet channel (18) is in contiguity with the outlet end (56), the tapering portion preferably is contiguous with the inlet end (54) as well.
[9]
9. Product (120) according to claim
7, characterized by the fact that the surface of revolution according to (II) has at least one portion that is concave and / or convex in relation to the longitudinal axis (L-L).
[10]
Product according to any one of claims 1 to 9, characterized in that the wall of the container comprises at least 80% plastic material by total weight of the container.
[11]
11. Product (120) according to claim
10, characterized by the fact that the plastic material is selected from the group consisting of polyolefins, polyesters, polyamide, polyvinyl chloride, acrylic, polycarbonates, polyethylene naphthalate, polyethylene terephthalate, polystyrene, polyurethane and mixtures thereof; or polyethylene terephthalate, polyethylene naphthalate and mixtures thereof.
[12]
Product (120) according to any one of claims 1 to 4, characterized in that the wall of the container comprises at least 80% of metal material by total weight of the container and in which the metal material is selected from the group consisting of: aluminum, tin-clad steel and combinations thereof; and where the propellant is a liquefied gas-based propellant and where the liquefied gas-based propellant is selected from the group consisting of dimethyl ether, 1,1-difluoroethane, 1,1,1,2-tetrafluoroethane ,
Petition 870180164502, of 12/18/2018, p. 11/16
6/6 pentane, n-butane, iso-butane, propane, trans-1,3,3,3tetrafluoropropene and mixtures thereof; or dimethyl ether, 1,1-difluoroethane and mixtures thereof.
[13]
13. Method for combing hair characterized by the fact that it comprises:
i. applying an ejected composition to the hair, wherein the ejected composition is ejected by the hair fixing product (120), as defined in any one of claims 1 to 12;
ii. dry the composition ejected on the hair.

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法律状态:
2017-04-04| B15I| Others concerning applications: loss of priority|

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2017-06-13| B12F| Appeal: other appeals|

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

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2018-05-02| B25A| Requested transfer of rights approved|Owner name: GALLERIA CO. (US) |

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2018-05-15| B25A| Requested transfer of rights approved|Owner name: NOXELL CORPORATION (US) |

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2018-10-02| B07A| Technical examination (opinion): publication of technical examination (opinion)|

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2019-01-08| B09A| Decision: intention to grant|

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2019-03-26| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 13/09/2012, 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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EP11007522.3|2011-09-15|

---

EP11007522A|EP2570190A1|2011-09-15|2011-09-15|Spray nozzle for dispensing a fluid and sprayer comprising such a spray nozzle|

---

EP11192063.3A|EP2570113B1|2011-09-15|2011-12-06|Aerosol hairspray product for styling and/or shaping hair|

---

EP11192063.3|2011-12-06|

---

PCT/US2012/055102|WO2013040171A2|2011-09-15|2012-09-13|Aerosol hairspray product for styling and/or shaping hair|

---