Aerosol device comprising at least an acrylic associative polymer and at least a fixing polymer

0001The present invention relates to an aerosol device containing at least one acrylic associative polymer and at least one fixing polymer, as well as a styling method using such a device.

0002Styling compositions packaged in the form of an aerosol spray generally contain a large fraction of alcohol. However, cosmetic products with a high alcohol content are subject to special monitoring, particularly in the United States, following the recent public awareness of the environmental problems resulting from the emission of volatile organic compounds into the environment. atmosphere.

0003A solution to reduce the amount of alcohol, or even completely eliminate alcohol formulas, is the replacement by an equivalent amount of water. This introduction of large amounts of water into aerosol sprays for fixing the hair, such as lacquers, however, leads to an undesirable major change in the shape of the hair and degradation of the cosmetic properties. Furthermore, most hydrocarbon propellants are incompatible with water and their use in compositions with high water content is therefore generally impossible.

0004Styling products are usually used to bring a lasting hold to the hairstyle.

0005For this, fixing polymers are introduced into a hydroalcoholic medium.

0006The conditioning in aerosol form allows a regular distribution on the whole of the hair.

0007Fixing the hairstyle is then almost immediate and it is not easy or impossible to structure the hairstyle with the hands because the hair is frozen instantly.

0008The problem posed by the invention is to provide a hair cosmetic composition that properly fixes the hair, providing good cosmetic properties with, in particular, a reduction of the tack and drying effect in a reasonable time, while distributing uniformly and rapidly on the hair.

0009The present invention relates to a composition packaged in an aerosol device as defined in claim 1.

0010The invention also relates to a styling process of vaporizing the mixture contained in said aerosol device on the shaped hair and to let the hair thus treated dry.

COATING COMPOSITION

0011All anionic, nonionic fixing polymers and mixtures thereof used in the art can be used in the compositions according to the present application.

0012By fixing polymer is meant in the sense of the present invention any polymer capable of providing a maintenance of the hair in a given form.

FIXING POLYMERS

ANIONIC FIXING POLYMERS

0013The fixing polymers may be soluble in the cosmetically acceptable medium or insoluble in the same medium and used in this case in the form of dispersions of solid or liquid polymer particles (latex or pseudolatex).

0014The anionic fixing polymers generally used are polymers containing groups derived from carboxylic, sulfonic or phosphoric acid and have a number-average molecular weight of between about 500 and 5,000,000.

0015The carboxylic groups are provided by unsaturated mono- or di-carboxylic acid monomers, such as those corresponding to the formula:<chemistry id="chem0001" num="0001"><img file="EP1634579B2_D0001.tif" /></chemistry>in which n is an integer from 0 to 10, A₁ denotes a methylene group, optionally linked to the carbon atom of the unsaturated group or to the neighboring methylene group when n is greater than 1, by means of a heteroatom such as oxygen or sulfur, R₇ denotes a hydrogen atom, a phenyl or benzyl group, R₈ denotes a hydrogen atom, a lower alkyl or carboxyl group, R₉ designates a hydrogen atom, a lower alkyl group, a group -CH₂-COOH, phenyl or benzyl.

0016In the abovementioned formula, a lower alkyl group preferably denotes a group having 1 to 4 carbon atoms and in particular the methyl and ethyl groups.

0017The anionic fixing polymers with preferred carboxylic groups according to the invention are:<ol id="ol0001" ol-style=""><li>A) homo- or copolymers of acrylic or methacrylic acid or their salts and in particular the products sold under the names VERSICOL^® E or K by ALLIED COLLOID and ULTRAHOLD^® by the company BASF, copolymers of acrylic acid and acrylamide sold in the form of their sodium salts under the names RETEN 421, 423 or 425 by the company HERCULES, the sodium salts of polyhydroxycarboxylic acids;</li><li>B) copolymers of acrylic or methacrylic acid with a monoethylenic monomer such as ethylene, styrene, vinyl esters, esters of acrylic or methacrylic acid, optionally grafted onto a polyalkylene glycol such as polyethylene glycol, and optionally crosslinked. Such polymers are described in particular in French Patent No.<patcit id="pcit0001" dnum="FR1222944"><text>1 222 944</text></patcit> and German demand no. <patcit id="pcit0002" dnum="DE2330956"><text>2 330 956</text></patcit>copolymers of this type comprising in their chain an acrylamide unit, optionally N-alkylated and / or hydroxyalkylated, as described in particular in the Luxembourg patent applications n^bone<patcit id="pcit0003" dnum="LU75370"><text>75370 </text></patcit>and <patcit id="pcit0004" dnum="LU75371"><text>75371 </text></patcit>or proposed under the name QUADRAMER by AMERICAN CYANAMID. Mention may also be made of copolymers of acrylic acid and of C-alkyl methacrylate₁-VS₄ and the terpolymers of vinylpyrrolidone, acrylic acid and C-alkyl methacrylate₁-VS₂₀for example, lauryl, such as that marketed by the company ISP under the name ACRYLIDONE^® LM and methacrylic acid / ethyl acrylate / tert-butyl acrylate terpolymers such as the product sold under the name LUVIMER^® 100 P by BASF; Mention may also be made of methacrylic acid / acrylic acid / ethyl acrylate / methyl methacrylate copolymers in aqueous dispersion, marketed under the name Amerhold.^® DR 25 by the company AMERCHOL;</li><li>C) Crotonic acid copolymers, such as those comprising in their chain vinyl acetate or propionate units, and optionally other monomers such as allyl or methallyl esters, vinyl ethers or vinyl esters of a saturated carboxylic acid, linear or branched, long hydrocarbon chain, such as those comprising at least 5 carbon atoms, these polymers may optionally be grafted or crosslinked, or another vinyl ester monomer, allyl or methallylic of an α- or β-cyclic carboxylic acid. Such polymers are described inter alia in the French patents^bone<patcit id="pcit0005" dnum="FR1222944"><text>1 222 944</text></patcit>, <patcit id="pcit0006" dnum="FR1580545"><text>1 580 545</text></patcit>, <patcit id="pcit0007" dnum="FR2265782"><text>2 265 782</text></patcit>, <patcit id="pcit0008" dnum="FR2265781"><text>2 265 781</text></patcit>, <patcit id="pcit0009" dnum="FR1564110"><text>1 564 110</text></patcit> and <patcit id="pcit0010" dnum="FR2439798"><text>2 439 798</text></patcit>. Commercial products in this class are the 28-29-30, 26-13-14 and 28-13-10 resins marketed by National Starch;</li><li>D) Copolymers of C monounsaturated carboxylic acids or anhydrides₄-VS₈ chosen from:<ul id="ul0001" list-style="dash" compact="compact"><li>copolymers comprising (i) one or more maleic, fumaric and itaconic acids or anhydrides and (ii) at least one monomer chosen from vinyl esters, vinyl ethers, vinyl halides, phenylvinyl derivatives, acrylic acid and its esters the anhydride functions of these copolymers being optionally monoesterified or monoamidified. Such polymers are described in particular in US Pat.^bone<patcit id="pcit0011" dnum="US2047398A"><text>2 047 398</text></patcit>, <patcit id="pcit0012" dnum="US2723248A"><text>2 723 248</text></patcit>,<patcit id="pcit0013" dnum="US2102113A"><text> 2 102 113</text></patcit>, the patent <patcit id="pcit0014" dnum="GB839805A"><text>GB No. 839,805</text></patcit>. Commercial products are especially those sold under the names GANTREZ^® AN or ES by the company ISP; copolymers comprising (i) one or more maleic, citraconic and itaconic anhydride units and (ii) one or more monomers chosen from allylic or methallyl esters optionally containing one or more acrylamide, methacrylamide, α-olefin or acrylic or methacrylic ester groups, acrylic or methacrylic acid or vinylpyrrolidone in their chain, the anhydride functions of these copolymers being optionally monoesterified or monoamidified. These polymers are for example described in the French patents^bone<patcit id="pcit0015" dnum="FR2350384"><text>2 350 384 </text></patcit>and <patcit id="pcit0016" dnum="FR2357241"><text>2 357 241 </text></patcit>the plaintiff;</li></ul></li><li>E) Polyacrylamides having carboxylate groups. Homopolymers and copolymers comprising sulphonic groups are polymers comprising vinylsulphonic, styrene-sulphonic, naphthalenesulphonic or acrylamido-alkylsulphonic units.</li></ol>

0018These polymers may especially be chosen from:<ul id="ul0002" list-style="dash" compact="compact"><li>salts of polyvinylsulphonic acid having a molecular weight of between about 1,000 and 100,000, as well as copolymers with an unsaturated comonomer such as acrylic or methacrylic acids and their esters, as well as acrylamide or its derivatives, ethers vinyl and vinylpyrrolidone;</li></ul>salts of polystyrenesulphonic acid, such as the sodium salts sold, for example, under the name Flexan^® 500 and Flexan^® 130 by National Starch. These compounds are described in the patent<patcit id="pcit0017" dnum="FR2198719"><text>FR 2 198 719</text></patcit> ; mentioned in the patent<patcit id="pcit0018" dnum="US4128631A"><text>US 4,128,631</text></patcit>, and more particularly the polyacrylamidoethylpropanesulphonic acid sold under the name COSMEDIA POLYMER HSP 1180 by HENKEL.

0019As another anionic fixing polymer that can be used according to the invention, mention may be made of the plugged anionic block polymer sold under the name Fixate G-100 by the company Noveon.

0020According to the invention, the anionic fixing polymers are preferably chosen from acrylic acid copolymers such as acrylic acid / ethyl acrylate / N-tert-butylacrylamide terpolymers sold in particular under the name ULTRAHOLD.^® STRONG by BASF, copolymers derived from crotonic acid such as vinyl acetate terpolymers / vinyl tert-butylbenzoate / crotonic acid and crotonic acid / vinyl acetate / vinyl neododecanoate terpolymers sold in particular under the name Resin 28- 29-30 by NATIONAL STARCH, polymers derived from maleic, fumaric, itaconic acids or anhydrides with vinyl esters, vinyl ethers, vinyl halides, phenylvinyl derivatives, acrylic acid and its esters such as monoesterified methyl vinyl ether / maleic anhydride copolymers sold, for example, under the name GANTREZ^® by ISP, the copolymers of methacrylic acid and methyl methacrylate sold under the name EUDRAGIT^® L by the company ROHM PHARMA, the copolymers of methacrylic acid and ethyl acrylate sold under the name LUVIMER^® MAEX or MAE by the company BASF and the vinyl acetate / crotonic acid copolymers sold under the name Luviset CA 66 by the company BASF and the vinyl acetate / crotonic acid copolymers grafted with polyethylene glycol sold under the name ARISTOFLEX^® A by the company BASF, the polymer sold under the name Fixate G-100 by the company NOVEON.

0021Among the above-mentioned anionic fixing polymers, it is more particularly preferred to use, in the context of the present invention, the monoesterified methyl vinyl ether / maleic anhydride copolymers sold under the name Gantrez.^® ES 425 by the company ISP, the terpolymers acrylic acid / ethyl acrylate / N-tert-butylacrylamide sold under the name ULTRAHOLD^® STRONG by BASF, the copolymers of methacrylic acid and methyl methacrylate sold under the name EUDRAGIT^® L by the company ROHM PHARMA, the terpolymers vinyl acetate / vinyl tert-butylbenzoate / crotonic acid and the crotonic acid / vinyl acetate / vinyl neododecanoate terpolymers sold under the name Resin 28-29-30 by the company National Starch, the copolymers of methacrylic acid and of ethyl acrylate sold under the name Luvimer^® MAEX or MAE by the company BASF, the terpolymers vinylpyrrolidone / acrylic acid / lauryl methacrylate sold under the name ACRYLIDONE^® LM by the company ISP, the polymer sold under the name Fixate G-100 by the company NOVEON.

NON-IONIC FIXING POLYMERS

0022The nonionic fixing polymers that can be used according to the present invention are chosen, for example, from:<ul id="ul0003" list-style="dash" compact="compact"><li>polyalkyloxazolines;</li><li>homopolymers of vinyl acetate;</li><li>vinyl acetate copolymers such as, for example, copolymers of vinyl acetate and acrylic ester, copolymers of vinyl acetate and ethylene, or copolymers of vinyl acetate and ester maleic, for example, dibutyl maleate;</li><li>homopolymers and copolymers of acrylic esters such as, for example, copolymers of alkyl acrylates and of alkyl methacrylates such as the products offered by the company Rohm &amp; Haas under the names PRIMAL^® AC-261 K and EUDRAGIT^® NE 30 D, by the company BASF under the name 8845, by the company HOECHST under the name APPRETAN^® N9212;</li><li>copolymers of acrylonitrile and a nonionic monomer chosen, for example, from butadiene and alkyl (meth) acrylates; mention may be made of the products sold under the name CJ 0601 B by the company Rohm &amp; Haas;</li><li>homopolymers of styrene;</li><li>styrene copolymers such as, for example, styrene and alkyl (meth) acrylate copolymers such as MOWILITH products^® LDM 6911, MOWILITH^® DM 611 and MOWILITH^® LDM 6070 offered by HOECHST, RHODOPAS products^® SD 215 and RHODOPAS^® DS 910 offered by the company RHONE POULENC; copolymers of styrene, alkyl methacrylate and alkyl acrylate; copolymers of styrene and butadiene; or copolymers of styrene, butadiene and vinylpyridine;</li><li>polyamides;</li><li>homopolymers of vinyllactam different from homopolymers of vinylpyrrolidone, such as polyvinylcaprolactam marketed under the name Luviskol^® PLUS by BASF; and</li><li>copolymers of vinyllactam such as a poly (vinylpyrrolidone / vinyllactam) copolymer sold under the trade name Luvitec^® VPC 55K65W by BASF, poly (vinylpyrrolidone / vinyl acetate) copolymers, such as those sold under the name PVPVA^® S630L by the company ISP, Luviskol^® VA 73, VA 64, VA 55, VA 37 and VA 28 by BASF; and poly (vinylpyrrolidone / vinyl acetate / vinyl propionate) terpolymers such as, for example, that marketed under the name Luviskol^® VAP 343 by the company BASF.</li></ul>

0023The alkyl groups of the nonionic polymers mentioned above preferably have from 1 to 6 carbon atoms.

0024According to the invention, it is also possible to use fixing polymers of the anionic or nonionic grafted silicone type, comprising a polysiloxane part and a part consisting of a non-silicone organic chain, one of the two parts constituting the main chain of the polymer. and the other being grafted onto said main chain.

0025These polymers are for example described in the patent applications <patcit id="pcit0019" dnum="EP0412704A"><text>EP-A-0 412 704</text></patcit>, <patcit id="pcit0020" dnum="EP0412707A"><text>EP-A-0 412 707</text></patcit>, <patcit id="pcit0021" dnum="EP0640105A"><text>EP-A-0 640 105</text></patcit> and <patcit id="pcit0022" dnum="WO9500578A"><text>WO 95/00578</text></patcit>, <patcit id="pcit0023" dnum="EP0582152A"><text>EP-A-0 582 152</text></patcit> and <patcit id="pcit0024" dnum="WO9323009A"><text>WO 93/23009</text></patcit> and patents <patcit id="pcit0025" dnum="US4693935A"><text>US 4,693,935</text></patcit>, <patcit id="pcit0026" dnum="US4728571A"><text>US 4,728,571</text></patcit> and <patcit id="pcit0027" dnum="US4972037A"><text>US 4,972,037</text></patcit>.

0026Such polymers are, for example, the copolymers that can be obtained by radical polymerization from the monomer mixture formed:<ol id="ol0002" compact="compact" ol-style=""><li>a) from 50 to 90% by weight of tert-butyl acrylate,</li><li>b) from 0 to 40% by weight of acrylic acid,</li><li>c) from 5 to 40% by weight of a silicone macromer of formula<chemistry id="chem0002" num="0002"><img file="EP1634579B2_D0002.tif" /></chemistry>where v is a number from 5 to 700, the percentages by weight being calculated with respect to the total weight of the monomers.</li></ol>

0027Other examples of grafted silicone polymers are, in particular, polydimethylsiloxanes (PDMS) on which are grafted, via a thiopropylene type connection link, mixed polymeric units of the poly (meth) acrylic acid type and poly (alkyl) (meth) acrylate), and polydimethylsiloxanes (PDMS) on which are grafted, via a thiopropylene type connecting member, polymeric units of the polyisobutyl (meth) acrylate type. .

0028Another type of silicone fixing polymers that may be mentioned is the Luviflex product.^® Silk marketed by BASF.

0029The concentration of fixing polymer (s) used in the compositions according to the present invention is between 0.1 and 20%, preferably between 0.5 and 10% by weight relative to the total weight of the total composition contained. in the aerosol device (propellant + styling composition).

ACRYLIC ANIONIC ASSOCIATIVE POLYMERS

0030Within the meaning of the present invention, associative polymer is understood to mean any amphiphilic polymer comprising at least one fatty chain, therefore a hydrophobic part, and at least one hydrophilic part.

0031The molecules of these polymers are capable of associating with each other or with molecules of associative agents such as surfactants, which leads to particular properties.

0032The hydrophobic portion may be reduced in number relative to the rest of the polymer chain, and may be located laterally to the chain and may be randomly distributed (random copolymers) or distributed in the form of sequences or grafts (block copolymers). or block copolymers).

0033Water-soluble or water-dispersible polymers can be used. Preferably, the amphiphilic polymers useful according to the invention are not crosslinked.

0034The associative polymers of the invention are anionic and comprise as monomers at least one unsaturated carboxylic acid. The unsaturated carboxylic acids which can be used in the polymers of the invention are preferably chosen from the group of acrylic, methacrylic, crotonic, itaconic and maleic acids.

0035By the term "fatty chain" is meant according to the invention, a linear or branched hydrocarbon group having from 8 to 30 carbon atoms.

0036Among the acrylic anionic associative polymers according to the invention, mention may be made of:<ul id="ul0004" list-style="dash" compact="compact"><li>copolymers comprising at least one hydrophilic unit, and at least one fatty-chain allyl ether unit, the hydrophilic unit of which is constituted by a vinyl carboxylic acid and very particularly by an acrylic acid or a methacrylic acid or mixtures thereof. ci, and whose fatty-chain allyl ether unit corresponds to the following monomer of formula (V):         CH2 = CR'CH2OBnR (V) in which :<ul id="ul0005" list-style="dash" compact="compact"><li>R 'denotes H or CH₃ ;</li><li>B is the ethyleneoxy radical;</li><li>n is nil or denotes an integer ranging from 1 to 100;</li><li>R denotes a hydrocarbon radical chosen from alkyl, arylalkyl, aryl, alkylaryl and cycloalkyl radicals, comprising from 8 to 30 carbon atoms, preferably 10 to 24, and even more particularly from 12 to 18 carbon atoms.</li></ul></li></ul>

0037A more particularly preferred unit of formula (V) is a unit in which R 'denotes H, n is equal to 10 and R denotes a stearyl radical (C₁₈).

0038Anionic associative polymers of this type are described and prepared according to an emulsion polymerization process in the patent. <patcit id="pcit0028" dnum="EP0216479A"><text>EP-0 216 479</text></patcit>.

0039Among these polymers, polymers formed from 20 to 60% by weight of acrylic acid and / or methacrylic acid, from 5 to 60% by weight of alkyl (meth) acrylates, are particularly preferred according to the invention. lower, from 2 to 50% by weight of fatty-chain allyl ether of formula (V) and from 0 to 1% by weight of a crosslinking agent which is a well-known copolymerizable polyethylenic unsaturated monomer, such as diallyl, allyl (meth) acrylate, divinylbenzene, (poly) ethylene glycol dimethacrylate and methylene-bis-acrylamide.

0040Among these, the crosslinked terpolymers sold by ALLIED COLLOIDS under the trade names SALCARE SC 80® and SALCARE SC90®, which are aqueous emulsions containing 30% of a cross-linked terpolymer of methacrylic acid, of acrylate, are particularly preferred. ethyl and steareth-10-allyl ether (40/50/10).

0041Mention may also be made, as polymers belonging to this family, of the RHOEVIS -CR, -CR3 and -CRX products proposed by ALLIED COOLOIDS;<ul id="ul0006" list-style="dash" compact="compact"><li>methacrylic acid / alkyl acrylate / polyoxyethylenated lauryl acrylate terpolymers such as the product RHEO 2000 marketed by COATEX;</li><li>methacrylic acid / C1-C8 alkyl acrylate / polyoxyethylenated stearyl methacrylate copolymers, such as the ACRYSOL 22 (or ACULYN 22 or ACRYSOL ICS) ACRYSOL25 and DW-1206A products marketed by the company ROHM &amp; HAAS;</li><li>methacrylic acid / ethyl acrylate / polyoxyethylenated nonylphenol acrylate copolymers such as the product RHEO 3000 marketed by COATEX;</li><li>terpolymers of maleic anhydride / α-olefin in C₃₀-VS₃₈ alkyl maleate such as the product (maleic anhydride / C-α-olefin copolymer)₃₀-VS₃₈ isopropyl maleate) sold under the name PERFORMA V 1608® by the company NEWPHASE TECHNOLOGIES.</li><li>acrylic copolymers with a polyurethane unit (s) such as acrylic terpolymers comprising:<ol id="ol0003" compact="compact" ol-style=""><li>(a) about 20% to 70% by weight of an α, β-monoethylenically unsaturated carboxylic acid;</li><li>(b) about 20 to 80% by weight of a non-surfactant α, β-monoethylenically unsaturated monomer different from (a);</li><li>(c) about 0.5 to 60% by weight of a nonionic mono-urethane which is the reaction product of a monohydric surfactant with a monoethylenically unsaturated monoisocyanate;</li></ol>such as those described in the patent application <patcit id="pcit0029" dnum="EP0173109A"><text>EP-A-0 173 109</text></patcit> and more particularly that described in Example 3, namely, a methacrylic acid / methyl acrylate / dimethyl metaisopropenyl benzyl isocyanate terpolymer of ethoxylated behenyl alcohol (40 EO) in a 25% aqueous dispersion.</li></ul>

0042As a similar product, mention may be made of the product ADDITOL VXW 1312 marketed by HOECHST.

0043Among the associative polymers, it is preferred:<ul id="ul0007" list-style="dash" compact="compact"><li>the acrylic acid / ethyl acrylate C 1 -C 8 polyoxyethylenated methacrylate terpolymers, for example using 20 moles of ethylene oxide such as the product sold under the name "ACRYSOL ICS or ACRYSOL ZZ or ACULYN 22 "by the company ROHM &amp; HAAS,</li></ul>

0044Depending on their nature, the associative polymers according to the invention can be used in the form of aqueous solutions or in the form of aqueous dispersions.

0045Depending on their nature, the associative polymers according to the invention can be used in the form of aqueous solutions or in the form of aqueous dispersions.

AEROSOL

0046The propellant may be any liquefiable gas typically used in aerosol devices such as dimethyl ether, C alkanes, and the like._3-5, 1,1-difluoroethane, mixtures of dimethyl ether and alkanes in C_3-5, and mixtures of 1,1-difluoroethane and dimethyl ether and / or C-alkanes_3-5. Dimethyl ether is particularly preferably used as a propellant. The propellant is present in a proportion of more than 20%, and preferably between 20 and 70% and even more preferably between 20 and 50 of the total weight of the mixture (propellant (a) + styling composition (b)) contained in the aerosol device.

0047Although the styling compositions contained in the aerosol device of the present invention are preferably free of lower alcohols, they may contain up to 50% and preferably up to 25% by weight, based on the total weight of the mixture contained therein. in the aerosol device, one or more lower alcohols such as ethanol or isopropanol.

0048The styling composition according to the invention may also contain at least one adjuvant chosen from silicones in soluble, dispersed, micro-dispersed form, nonionic, anionic, cationic and amphoteric surfactants, additional polymers other than fixing polymers and associative polymers used in the compositions according to the invention, ceramides and pseudo-ceramides, vitamins and pro-vitamins including panthenol, vegetable oils, animal oils, inorganic and synthetic waxes, waxes other than ceramides and pseudo-ceramides, water-soluble and liposoluble sunscreens, silicone or non-silicone filters, solid particles such as inorganic and organic pigments, colored or unstained, pearlescent and opacifying agents , flakes, active particles, dyes, sequestering agents, plasticizers, solubilizing agents, acidifying agents, basifying agents, neutralizing agents, inorganic and organic thickeners, antioxidants, hydroxyacids, penetrating agents, perfumes and preservatives.

0049These additives are present in the composition according to the invention in an amount ranging from 0 to 20% by weight relative to the total weight of the composition.

0050In the styling compositions contained in the aerosol device, the water represents from 20 to 80% by weight, relative to the total weight of the mixture contained in the aerosol device.

0051Of course, those skilled in the art will take care to choose this or these additional additives and / or their amounts so that the advantageous properties intrinsic to the invention are not affected by the addition or additions envisaged.

0052Used under the conditions of the invention described above, that is to say in an aerosol device, the associative polymers of the invention facilitate the spreading of the styling solution on the hair and reduce the stickiness of the hair. fixing polymers of the invention.

0053This particular combination makes it possible to obtain shaping of the hairstyle by working with the fingers without obtaining the instant hardening and freezing conventionally encountered with the fixing products. The application can be done on both wet and dry hair.

0054In the context of an application on wet hair drying in the open air or blow drying can be achieved. The result hairstyle is flexible and natural.

0055The introduction of specific additives of the polyol type in this type of formulation makes it possible, for example, to obtain a so-called "wet" effect, that is to say, giving the hair a "shower outlet" type appearance in a sustainable manner. in time.

0056The result hairstyle is flexible and natural.

0057The formulation example illustrates the present invention without however limiting it.

Example:

0058Hydroalcoholic aerosol spray comprising in g / 100 g and in active material:<ul id="ul0008" list-style="none" compact="compact"><li>PVP: 2.27</li><li>Aculyn 22: 0.65</li><li>2 Amino2methylpropanol: 0.06</li><li>Water: 36.40</li><li>Glycerol: 10.40</li><li>Ethanol: 15.22</li><li>DME: 35</li></ul>

0059Sprayed on wet natural hair, the composition above is easily distributed on the hair without sticking the fingers and gives it after drying a flexible and natural lasting durable with a wet effect ("wet").