FR3015270A1 - COMPOSITION COMPRISING A PARTICULAR ACRYLIC COPOLYMER AND A PARTICULAR CATIONIC POLYMER - Google Patents

Abstract

The present invention relates to a composition comprising: (i) one or more acrylic copolymers comprising as monomers: (a) at least one unsaturated acidic monomer selected from acrylic or methacrylic acids or their salts; (b) at least one unsaturated ester monomer of acrylate or methacrylate type having in its structure at least one linear or branched chain fatty alkyl group, preferably having a C 8 -C 30 alkyl group, more preferably a C 10 -C 15 alkyl group, better in C12-C13; (c) at least one unsaturated ester monomer of acrylate or methacrylate type having in its structure at least one short-chain alkyl group, linear or branched, preferably branched, preferably having a C 2 -C 6 alkyl group, more preferably C3-C5, better in C4; and (d) at least one acrylamide monomer having a linear or branched, preferably branched, alkyl group, preferably having a C 3 -C 10 alkyl group, preferably a C 4 -C 8 alkyl group; (ii) one or more cationic polymer (s) obtained by radical polymerization or grafting.

Description

The present invention relates to a composition for the treatment of keratinous fibers, in particular human keratinous fibers such as the hair, comprising one or more particular acrylic copolymers and one or more particular cationic polymers. The present invention also relates to a method for shaping and / or maintaining the hairstyle using said composition and the use of said composition for shaping and / or maintaining the hairstyle.

In the field of styling, in particular among products intended for shaping and / or maintaining the hairstyle, the most popular hair compositions on the cosmetics market are compositions consisting essentially of a solution most often alcoholic or hydroalcoholic and one or more polymers, called fixing polymers, which are generally film-forming polymers. These polymers thus have the function of making welds between the hair so as to be able to structure the hairstyle and bring it a lasting hold. However, some fixing polymers cause a hardening of the hair. This inconvenience leads to a fixed hairstyle and a difficult disentangling at the end of the day, the hair having a dry touch. To improve the cosmetic feel of the hair, it is known to add silicone or oxyethylenated compounds. However, this type of association tends to decrease the level of fixation of the compositions and to reduce the behavior of the hairstyle.

JP2007-223943 and JP2007-63186 describe hair compositions associating a polymer fixing to a silicone compound. For example, JP2007-223943 describes hair compositions comprising a film-forming acrylic copolymer, wherein the film-forming acrylic copolymer can be combined with an alkyl acrylate / methacrylic acid / silicone copolymer. The compositions obtained make it possible to obtain good strength properties without adding stiffness or stickiness. JP2007-63186 also discloses hair compositions comprising a film-forming acrylic copolymer, the film-forming acrylic copolymer being capable of being associated with a methylpolysiloxane or a methylphenylpolysiloxane. The compositions obtained provide fixation and a cosmetic feel, especially softness.

Furthermore, JP2007-217314 discloses hair compositions comprising a film-forming acrylic copolymer, the film-forming acrylic copolymer being capable of being associated with a polyquaternium-56. The compositions obtained make it possible to give a natural rendering without generating stickiness.

However, the properties obtained in terms of fixation (level, durability), and cosmetics (smooth touch, disentangling) are not optimal. There is therefore a real need to find compositions, especially for styling, which allow a good level of fixation and maintenance of the hairstyle, durable, while providing a cosmetic touch to the hair.

The Applicant has found surprisingly and unexpectedly that the combination of a particular acrylic copolymer and a particular cationic polymer allowed to obtain a hair not having the above disadvantages. Indeed, this combination provides a strong attachment of the hair, lasting on the day, while providing a cosmetic touch to the hair. The surface of the hair is smoother and the hair is held in the desired shape without being fixed or hardened. In addition, detangling at the end of the day is easier, the touch is non-sticky and the hair softer, are soft and smooth.

The subject of the invention is therefore a composition, comprising: (i) one or more acrylic copolymers comprising as monomers: (a) at least one unsaturated acidic monomer chosen from acrylic or methacrylic acids or their salts; (b) at least one acrylate or methacrylate unsaturated ester monomer having in its structure at least one linear or branched chain fatty alkyl group, preferably having a C 8 -C 30 alkyl group, more preferably a C 10 -C 15 alkyl group, better in C12-C13; (c) at least one unsaturated ester monomer of acrylate or methacrylate type having in its structure at least one short-chain alkyl group, linear or branched, preferably branched, preferably having a C 2 -C 6 alkyl group, more preferably C3-05, better in C4; and (d) at least one acrylamide monomer having a linear or branched, preferably branched, alkyl group, preferably having a C 3 -C 10 alkyl group, preferably a C 4 -C 8 alkyl group; (ii) one or more cationic polymer (s) obtained by radical polymerization or grafting.

Another object of the present invention is a method of shaping and / or maintaining the hairstyle using the composition according to the invention. The invention also relates to a use of the composition according to the invention for shaping and / or maintaining the hairstyle. Other objects, features, aspects and advantages of the invention will emerge even more clearly on reading the description and the example which follows. As indicated above, the composition according to the invention comprises one or more acrylic copolymers comprising as monomers: (a) at least one unsaturated acidic monomer chosen from acrylic or methacrylic acids or their salts; (b) at least one acrylate or methacrylate-type unsaturated ester monomer having in its structure at least one fatty-chain alkyl group; (c) at least one acrylate or methacrylate unsaturated ester monomer having in its structure a short chain alkyl group; and (d) at least one acrylamide monomer substituted with at least one alkyl group. The acrylic copolymer is preferably film-forming.

By "film-forming" polymer is meant a polymer capable of forming, by itself or in the presence of an auxiliary film-forming agent, a macroscopically continuous film on a support, in particular on keratin materials, and preferably a cohesive film. The acrylic copolymer comprises at least one monomer chosen from acrylic or methacrylic acids or their salts.

Preferably, the acrylic or methacrylic acids or their salts are present in a content ranging from 2 to 10% by weight, preferably from 5 to 9% by weight relative to the total weight of the copolymer. The acrylic copolymer also comprises one or more acrylate or methacrylate unsaturated ester monomers having in their structure or structure a fatty-chain alkyl group. These monomers are therefore esters of acrylic or methacrylic acid and a monoalcohol of fatty alcohol type, the monoalcohol providing the alkyl group of the ester. The alkyl group can be linear or branched. Preferably, the unsaturated ester monomer of acrylate or methacrylate type having in its structure a fatty-chain alkyl group is an alkyl acrylate or methacrylate with a C 8 -C 30 alkyl group, more preferably a C 10 -C 15 alkyl group, more preferably C12-C13.

Preferably, the unsaturated ester monomer (s) of the acrylate or methacrylate type having in its structure at least one fatty-chain alkyl group is or are present in a content ranging from From 1 to 5% by weight, preferably from 0.5 to 3% by weight, more preferably from 1 to 2% by weight relative to the total weight of the copolymer. The acrylic copolymer is also derived from at least one unsaturated ester monomer of the acrylate or methacrylate type having in its structure at least one short chain alkyl group. These monomers are therefore esters of acrylic or methacrylic acid and a short chain monohydric alcohol, the monohydric alcohol providing the alkyl group of the ester. The alkyl group may be linear or branched, preferably branched. Preferably, the unsaturated ester monomer of the acrylate or methacrylate type having in its structure a short chain alkyl group is an alkyl acrylate or methacrylate with a C 2 -C 6 alkyl group, more preferably C 3 -C 5 alkyl group, more preferably C4. According to a preferred embodiment, the acrylic copolymer comprises, as monomer, a tert-butyl acrylate or methacrylate. Preferably, the monomer (s) unsaturated ester (s) of acrylate or methacrylate type having in its structure at least one short chain alkyl group is or are present in a content ranging from 50 to 95% by weight, preferably 60 to 90% by weight, more preferably 70 to 85% by weight relative to the total weight of the copolymer. The acrylic copolymer also comprises at least one acrylamide monomer substituted with at least one alkyl group. The alkyl group may be linear or branched, preferably branched. Preferably, the alkyl group is Ca-Cao, still more preferably 04-08. According to a preferred embodiment, the acrylic copolymer comprises, as monomer, tert-butylacrylamide or tert-octylacrylamide. Even more preferably, the acrylic copolymer comprises, as monomer, tert-butylacrylamide and tert-octylacrylamide. Preferably, the acrylamide monomer (s) substituted with at least one alkyl group is or are present in a content ranging from 0.01% to 10% by weight, preferably from 1% to 5% by weight. % by weight relative to the weight of the copolymer. The acrylic copolymer may further comprise as monomer one or more hydroxyl ester monomers of acrylic or methacrylic acid. Preferably, the ester is a C 2 -C 8 hydroxyalkyl acrylate or methacrylate, more preferably O 2 such as hydroxyethyl acrylate or methacrylate. The acrylic copolymer may have an average molecular weight of from 20000 to 500000 g / mol, preferably from 100000 to 250000 g / mol.

Preferably, the copolymer according to the invention is in salt form by neutralization of acid residues derived from acrylic or methacrylic acids. The copolymer may be partially or completely neutralized with a mineral base (sodium hydroxide, potassium hydroxide, ammonia) or an organic base such as mono-, di- or tri-ethanolamine, aminomethylpropanol, N-methyl-glucamine, basic amino acids such as arginine and lysine, and mixtures of these compounds. Preferably, the acrylic copolymer is neutralized with a neutralization agent chosen from aminomethylpropanol, tri-ethanolamine and sodium hydroxide. Preferably, the degree of neutralization of the acrylic copolymer ranges from 50 to 100%, preferably from 80 to 100%, and more particularly acrylic copolymer is neutralized to 100%. For example, as acrylic copolymer according to the invention, a copolymer AMP-acrylates / C1-C18 alkylacrylate / C1-C8 alkylacrylamide / hydroxyethylacrylate marketed by the company GOO CHEM ICAL under the trade reference PLASCIZE® L-9700 or PLASCIZE will be used, for example. ® L-9700U.

The acrylic copolymer may be present in the composition in a content ranging from 0.5 to 20% by weight, preferably from 1 to 10% by weight relative to the total weight of the composition.

As indicated above, the composition according to the invention comprises one or more cationic polymer (s) obtained by radical polymerization or grafting. By radical polymerization is meant a chain polymerization in which the active centers are free radicals. The monomers used in this type of polymerization are generally unsaturated monomers of vinyl or diene type. By grafting is meant within the meaning of the present invention the attachment to a pre-existing polymer chain of a compound or a monomer. The pre-existing polymeric chain is preferably a polysaccharide or a polypeptide.

By cationic polymer is meant any polymer containing cationic groups and / or ionizable groups into cationic groups, preferably non-siliceous. The cationic polymers that may be used in accordance with the present invention may be chosen from all those already known per se for styling the hair, namely in particular those described in the patent application EP-A-0 337 354 and in the French patent applications FR. No. 2 270 846, 2 383 660, 2 598 611, 2 470 596 and 2 519 863. The preferred cationic polymers that can be used in the composition according to the invention are chosen from those containing units containing primary, secondary amine groups. , tertiary and / or quaternary may be part of the main polymer chain, or be carried by a side substituent directly connected thereto. The cationic polymers preferably have a weight average molecular weight greater than 104, preferably greater than 105, and more preferably between 105 and 108. Among the cationic polymers that may be used in accordance with the invention, there may be mentioned more particularly polymers of the polyamine, polyaminoamide and quaternary polyammonium type.

The polymers of the polyamine, polyaminoamide or quaternary polyammonium type that can be used in the composition according to the present invention are in particular those described in French Patents 2,505,348 and 2,542,997. Among these polymers, mention may be made in particular of: (1) homopolymers or copolymers derived from acrylic or methacrylic esters or amides and comprising at least one of the following units of formulas (a), (b), (c) and (d): R 5 R 5 - CH 2 - C -Cl-12-C-o Ho = I o AX 1 N 1, / Re y-R 8 R 3 R 4 R 7 (a) (b) R (d) I 5 CH 2 -C 1 -CF 1 C - O H 0 NH Embedded image in which: R 3 and R 4, which may be identical or different, represent a hydrogen atom or an alkyl group containing from 1 to 6 carbon atoms; , and preferably a methyl or ethyl group, R5, which may be identical or different, denote a hydrogen atom or a group CH3, A, which may be identical or different, represent a linear or branched alkyl group of 1 to 6 carbon atoms, e carbon, preferably 2 or 3 carbon atoms or a hydroxyalkyl group having 1 to 4 carbon atoms, R6, R7, R8, the same or different, represent an alkyl group having 1 to 18 carbon atoms or a group benzyl, and preferably an alkyl group having 1 to 6 carbon atoms, X- denotes an anion derived from a mineral or organic acid, preferably a methosulphate anion, or a halide, more preferably a chloride or bromide. The copolymers of family (1) may further contain one or more comonomer-derived units which may be selected from the family of acrylamides, methacrylamides, acrylamide diacetones, acrylamides and methacrylamides substituted on the nitrogen atom by lower alkyls ( C1-C4), acrylic or methacrylic acids or their esters, vinyllactams such as vinylpyrrolidone or vinylcaprolactam, vinyl esters. Thus, among these copolymers of the family (1), mention may be made of: copolymers of acrylamide and of dimethylaminoethyl methacrylate quaternized with dimethyl sulphate or with a dimethyl halide such as that sold under the name HERCOFLOC by the company HERCULES, or MERQUAT® 5 by the company NALCO, the copolymers of acrylamide and of methacryloyloxyethyltrimethylammonium chloride described for example in the patent application EP-A-080976 and sold under the name BINA QUAT P 100 by the CIBA GEIGY company, - the copolymer of acrylamide and methacryloyloxyethyltrimethylammonium methosulfate sold under the name RETEN by the company HERCULES, - vinylpyrrolidone / dialkylaminoalkyl acrylate or methacrylate copolymers quaternized or otherwise, such as the products sold under the name " GAFQUAT "by the ISP company such as" GAFQUAT 734 "or" GAFQUAT 755 "or the products denominated "COPOLYMER 845, 958 and 937". These polymers are described in detail in French Pat. Nos. 2,077,143 and 2,393,573; dimethylaminoethyl methacrylate / vinylcaprolactam / vinylpyrrolidone terpolymers, such as the product sold under the name GAFFIX VC 713 or ADVANTAGE® HC 37 by the company ISP, vinylpyrrolidone / methacrylamidopropyl dimethylamine copolymers sold in particular under the name STYLEZE CC 10 by ISP; quaternized vinylpyrrolidone / dimethylaminopropyl methacrylamide copolymers such as the product sold under the name GAFQUAT HS 100 by the company ISP, and crosslinked polymers of methacryloyloxyalkyl (C1-C4) trialkyl (C1-C4) ammonium salts, such as the polymers obtained by homopolymerization of dimethylaminoethyl methacrylate quaternized with methyl chloride, or by copolymerization of acrylamide with methacrylate of dimethylaminoethyl quaternized with methyl chloride, homo or the copolymerization being followed by crosslinking with an olefinically unsaturated compound, in particular methylenebisacrylamide. It is more particularly possible to use a crosslinked acrylamide / methacryloyloxyethyltrimethylammonium chloride copolymer (20/80 by weight) in the form of a dispersion containing 50% by weight of said copolymer in mineral oil. This dispersion is marketed under the name "SALCARE® SC 92" by the company BASF. It is also possible to use a crosslinked homopolymer of methacryloyloxyethyltrimethylammonium chloride (INCI name Polyquaternium-37), for example, in dispersion in mineral oil or in a liquid ester. These dispersions are sold under the names "SALCARE® SC 95" and "SALCARE® SC 96" by the company BASF, and COSMEDIA® CTH by the company COGNIS.

Among the polymers of the family (1), mention may also be made, for example, of: vinylpyrrolidone / dimethylaminopropyl methacrylamide / C 8 -C 30 alkyl dimethylmethacrylamidopropylammonium terpolymers, such as the terpolymer, vinylpyrrolidone / dimethylaminopropylmethacrylamide / lauryldimethylmethacrylamidopropylammonium chloride proposed by the ISP company under the names STYLEZE® VV10, STYLEZE® VV2OL or STYLEZE W17L (INCI name Polyquaternium-55) - the products of the polymerization of a monomer mixture comprising: - a di (C 1 -C 4 alkyl) amino methacrylate (C1-C6) alkyl, - one or more C1-C30 alkyl esters and (meth) acrylic acid, - a polyethoxylated C10-C30 alkyl methacrylate (20-25 moles ethylene), a polyethylene glycol allyl ether / polypropylene glycol 30/5, a hydroxy (C2-C6) alkyl methacrylate, and an ethylene glycol dimethacrylate. Such a polymer is, for example, the compound marketed by LUBRIZOL under the name CARBOPOL® AQUA CC and which corresponds to the INCI name Polyacrylate-1 crosspolymer. (2) cyclopolymers of alkyl diallyl amine or of dialkyl diallyl ammonium, such as homopolymers or copolymers comprising, as main constituent of the chain, units of formula (e) or (f): (CH 2) C (R 12) -CH 2 CH2 + C1-12 / N10 R11 (CH2) t CR12 Y- (e) (CH2) (CH2) t CR12C (R12) -CH2 CHCH2R10 (f) in which k and t are 0 or 1, the sum k + t being equal to 1, R12 denotes a hydrogen atom or a methyl group, R10 and R11, independently of one another, denote an alkyl group having from 1 to 6 carbon atoms, a hydroxyalkyl group in which the alkyl group preferably has 1 to 5 carbon atoms, a lower amidoalkyl group (C1-C4), or R10 and R11 may designate, together with the nitrogen atom to which they are attached, heterocyclic groups; , such as piperidinyl or morpholinyl, Y- is an anion such as bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, s ulfate, phosphate. These polymers are in particular described in French patent 2,080,759 and in its certificate of addition 2,190,406. R10 and R11, independently of one another, preferably denote an alkyl group having from 1 to 4 carbon atoms. .

Among the polymers defined above, mention may be made more particularly of the homopolymer of dimethyldiallylammonium chloride sold under the name "Merquat 100" by the company NALCO, its counterparts of low molecular weight average, and the copolymers of diallyldimethylammonium chloride and acrylamide sold under the name "MERQUAT 550" or "MERQUAT S". (3) quaternary polymers of vinylpyrrolidone and / or vinylimidazole, such as, for example, the products sold under the names Luviquat® FC 905, FC 550, FC 370 and Luviquat Excellence by the company BASF. (4) cationic polysaccharides, and preferably cationic celluloses and galactomannan gums. Among the cationic polysaccharides, mention may be made more particularly of cellulose ether derivatives containing quaternary ammonium groups, cationic cellulose copolymers or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer and cationic galactomannan gums.

The cellulose ether derivatives containing quaternary ammonium groups described in French Patent 1,492,597. These polymers are also defined in the CTFA dictionary as quaternary ammoniums of hydroxyethylcellulose having reacted with an epoxide substituted with a trimethylammonium group and called Polyquaternium. -10. Mention may more particularly be made of the products sold under the names UCARE POLYMER® JR400LT or JR3OM or JR125 by the company AMERCHOL, POLYQUAT® 400KC by the company KCI, CELQUAT® SC240C by the company ALKO NOBEL. Cationic cellulose copolymers or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer, are described in particular in US Pat. No. 4 131 576, such as hydroxyalkyl celluloses, such as hydroxymethyl-, hydroxyethyl- or hydroxypropyl-grafted celluloses in particular. with a salt of methacryloylethyltrimethylammonium, methacrylmidopropyltrimethylammonium, dimethyl-diallylammonium, such as, for example, the products sold under the names CELQUAT L200 or H100 by the company Akzo Nobel (INCI name Polyquaternium-4). As cationic cellulose copolymers, mention may be made of polyquaternium-4, which is a copolymer of hydroxyethyl cellulose and of diallyldimethylammonium chloride.

The cationic galactomannan gums are described more particularly in US Pat. Nos. 3,589,578 and 4,031,307, in particular guar gums containing cationic trialkylammonium groups. For example, salt-modified guar gums, such as 2,3-epoxypropyltrimethylammonium chloride sold under the names Jaguar® O13S, O14S, C17 and Excel, are used by the company Rhodia, N-HANCE® 3196 or, N- HANCE CG13 by the company ASHLAND (INCI designation Guar hydroxypropyltrimonium chloride) or JAGUAR® C162 RHODIA (INCI name Hydroxypropyl guar hydroxypropyltrimonium chloride). Among the polymers of family (4), it is also possible to use the quaternized alkylhydroxyethylcelluloses with C8-C30 fatty chains, such as the product QUATRISOFT LM 200®, marketed by the company AMERCHOL / Dow Chemical (INCI name Polyquaternium-24) and the CRODACEL QM® (INCI PG-Hydroxyethylcellulose Cocodimonium Chloride), CRODACEL QL® (C12alkyl) (INCI PG-Hydroxyethylcellulose Lauryldimonium Chloride) and CRODACEL QS® (C18alkyl) (INCI PG-Hydroxyethylcellulose Stearyldimonium Chloride) marketed by the company CRODA. Other hydroxyethylcellulose derivatives may also be mentioned, such as SOFTCAT POLYMER SU) commercial products such as the SL-100, SL-60, SL-30 and SL-5 from AMERCHOL / DOW CHEMICAL INCI Polyquaternium- 67. (5) cationic proteins or cationic protein hydrolysates. Cationic protein or protein hydrolysates are, in particular, chemically modified polypeptides carrying quaternary ammonium groups at the end of the chain, or grafted thereto. Their molecular weight may vary, for example, from 1,500 to 10,000, and in particular from 2,000 to 5,000. Among these compounds, mention may be made in particular of: collagen hydrolysates bearing triethylammonium groups, such as the products sold under the name "Quat-Pro E" by the company MAYBROOK and referred to in the CTFA dictionary "Triethonium Hydrolyzed Collagen Ethosulfate" collagen hydrolysates containing trimethylammonium chloride and trimethylstearylammonium groups, sold under the name "Quat-Pro S" by the company MAYBROOOK and referred to in the CTFA dictionary as "Steartrimonium Hydrolyzed Collagen", - animal protein hydrolysates containing trimethylbenzylammonium groups, such as the products sold under the name "Crotein BTA" by the company CRODA and referred to in the CTFA dictionary as "Benzyltrimonium hydrolyzed animal protein", the protein hydrolysates carrying on the polypeptide chain quaternary ammonium groups having at least one minus one radi alkyl cal having 1 to 18 carbon atoms. Among these protein hydrolysates, mention may be made inter alia of: the "Croquat L" whose quaternary ammonium groups include a C 12 alkyl group, the "Croquat M" whose quaternary ammonium groups contain C 10 -C 18 alkyl groups; the "Croquat S" whose quaternary ammonium groups contain a C18 alkyl group, the "Crotein Q" whose quaternary ammonium groups contain at least one alkyl group having from 1 to 18 carbon atoms.

These different products are sold by CRODA. Other quaternized proteins or hydrolysates are, for example, those having the formula (g): ## STR2 ## wherein X is an anion of an organic or inorganic acid, denotes a protein residue derived from collagen protein hydrolysates, R26 denotes a lipophilic group having up to 30 carbon atoms, R27 represents an alkylene group having 1 to 6 carbon atoms. There may be mentioned, for example, the products sold by the company INOLEX, under the name "Lexein QX 3000", called in the CTFA dictionary "Cocotrimonium Collagent Hydrolysate". Mention may also be made of quaternized vegetable proteins such as wheat, corn or soya proteins, such as quaternized wheat proteins. Mention may be made of those marketed by the company CRODA under the names "Hydrotriticum WQ or QM" referred to in the CTFA dictionary "Cocodimonium Hydrolysed wheat protein", "Hydrotriticum QL" referred to in the CTFA dictionary "Laurdimonium hydrolysed wheat protein" or "Hydrotriticum QS" Called in the CTFA dictionary "Steardimonium hydrolysed wheat protein". (6) Oxyalkylenated polyamines such as Polyquart R H sold by COGNIS, referenced under the name "POLYETHYLENEGLYCOL (15) TALLOW POLYAMINE" in the CTFA dictionary. (7) polyalkyleneimines, in particular polyethyleneimines and polymers comprising in their structure: (a) one or more units corresponding to the following formula (A): CH 2 CHNH 2 (A) (b) optionally one or more units corresponding to the formula (B) following: CH2CHNHCOH (B). In other words, these polymers may in particular be chosen from homo- or copolymers comprising one or more units derived from vinylamine and optionally one or more units derived from vinylformamide. Preferably, these cationic polymers are chosen from polymers comprising, in their structure, from 5 to 100% by moles of units corresponding to the X (g) formula (A) and from 0 to 95% by moles of units corresponding to the formula (B), preferably from 10 to 100 mol% of units corresponding to formula (A) and from 0 to 90 mol% of units corresponding to formula (B). These polymers can be obtained for example by partial hydrolysis of polyvinylformamide. This hydrolysis can be done in acidic or basic medium. The weight average molecular weight of said polymer, measured by diffraction of light, can vary from 1000 to 3000000 g / mol, preferably from 10000 to 1000000 g / mol and more particularly from 100000 to 500000 g / mol.

The cationic charge density of these polymers can vary from 2 to 20 meq / g, preferably from 2.5 to 15 meq / g, and more particularly from 3.5 to 10 meq / g. The polymers comprising units of formula (A) and optionally units of formula (B) are sold, for example, under the name LUPAMIN by BASF, such as, for example, and without limitation, the products sold under the name LUPAMIN 9095. , LUPAMIN 5095, LUPAMIN 1095, LUPAMIN 9030 and LUPAMIN 9010. (8) polymers containing vinylpyridine or vinylpyridinium units, quaternary polyureylenes. (9) cationic derivatives of chitin.

Preferably, the cationic polymer (s) that may be used in the composition according to the invention are chosen from those of families (2), (3), (4) and (7), and more preferably from those of the family (2). ).

The composition according to the invention may comprise one or more cationic polymer (s) obtained by radical polymerization or grafting in an amount ranging from 0.001 to 15% by weight and preferably from 0.1 to 10%, and still more preferably from 1 to 7% by weight relative to the total weight of the composition. The composition according to the invention may further comprise one or more solvents. The solvent may be chosen from water, an organic solvent or a mixture of water and one or more organic solvents, preferably water-soluble. For the purposes of the present invention, the term "organic solvent" means an organic compound which is liquid at a temperature of 25 ° C. and at atmospheric pressure (760 mmHg).

For the purposes of the present invention, the term "water-soluble" is intended to mean a compound which is soluble to at least 5% by weight in water at a temperature of 25 ° C. and at atmospheric pressure (760 mmHg). Preferably, the organic compound is polar.

The organic solvents may be chosen from short-chain monohydric alcohols, for example C1-Ca, such as ethanol or isopropanol; diols or polyols such as ethylene glycol, 1,2-propylene glycol, 1,3-butylene glycol, hexylene glycol, diethylene glycol, dipropylene glycol, 2-ethoxyethanol, diethylene glycol monomethyl ether, triethylene glycol monomethyl ether and sorbitol. In a variant of the invention, the composition comprises water. In this variant the composition comprises or not one or more water-soluble organic solvents such as ethanol or isopropanol. In another variant of the invention, the composition does not comprise water.

The composition according to the invention may comprise one or more solvents in an amount ranging from 30 to 95%, preferably from 40 to 95% by weight, relative to the total weight of the composition.

The composition according to the invention may further comprise one or more surfactants, which may be chosen in particular from nonionic, cationic, anionic and amphoteric or zwitterionic surfactants. The surfactant (s) according to the invention preferably comprise one or more nonionic surfactant (s).

The nonionic surfactant (s) usable in the present composition are described for example in "Handbook of Surfactants" by MR PORTER, Blackie & Son editions (Glasgow and London), 1991, pp. 116-178. By way of examples of nonionic surfactants, mention may be made of the following nonionic surfactants: oxyalkylenated (C 8 -C 24) alkyl phenols; saturated or unsaturated, linear or branched, oxyalkylenated or glycerolated Ca-Cao alcohols; saturated or unsaturated, linear or branched, oxyalkylenated fatty acid amides of C 8 -C 30; saturated or unsaturated, linear or branched, C 8 -C 30 acid esters of polyethylene glycols; saturated or unsaturated, linear or branched, C8-C30 fatty acid esters, and preferably oxyethylenated esters of sorbitol; esters of sucrose fatty acids, alkyls (C8-C30) (poly) glucosides, alkenyl (C8-C30) (poly) glucosides, optionally oxyalkylenated (0 to 10 oxyalkylenated units) and comprising from 1 to 15 glucose units, (C8-C30) alkyl esters (poly) glucosides, - oxyethylenated vegetable oils, saturated or not; condensates of ethylene oxide and / or propylene oxide, among others, alone or in mixtures; derivatives of N-alkyl (C8-C30) glucamine and N-acyl (C8-C30) methylglucamine; aldobionamides; amine oxides; oxyethylenated and / or oxypropylenated silicones, and mixtures thereof.

The oxyalkylenated units are more particularly oxyethylenated units, oxypropylene, or their combination, preferably oxyethylenated. The number of moles of ethylene oxide and / or propylene oxide is preferably from 1 to 250, more preferably from 2 to 100; better from 2 to 50; the number of moles of glycerol ranges from 1 to 50, more preferably from 1 to 10.

Advantageously, the nonionic surfactants according to the invention do not comprise oxypropylene units. By way of example of glycerolated nonionic surfactants, the C 8 -C 40 alcohols, mono- or polyglycerolated, comprising from 1 to 50 moles of glycerol, preferably from 1 to 10 moles of glycerol, are preferably used. .

By way of example of compounds of this type, mention may be made of lauryl alcohol containing 4 moles of glycerol (INCI name: POLYGLYCERYL-4 LAURYL ETHER), lauric alcohol containing 1.5 moles of glycerol, and alcohol. oleic acid with 4 moles of glycerol (INCI name: POLYGLYCERYL-4 OLEYL ETHER), oleic alcohol with 2 moles of glycerol (INCI name: POLYGLYCERYL-2 OLEYL ETHER), cetearyl alcohol with 2 moles of glycerol, alcohol 6 moles of glycerol, oleocetyl alcohol with 6 moles of glycerol, and octadecanol with 6 moles of glycerol. Among the glycerolated alcohols, it is more particularly preferred to use the alcohol C8 / 010 to one mole of glycerol, the C10 / 012 alcohol to 1 mole of glycerol and the alcohol in O12 to 1.5 moles of glycerol.

The at least one nonionic surfactant (s) according to the invention are preferably chosen from: - oxyethylenated Ca-Cao alcohols comprising from 1 to 100 moles of ethylene oxide, preferably from 2 to 50, more preferably from 2 to 40 moles of ethylene oxide; saturated or unsaturated oxyethylenated vegetable oils comprising from 1 to 100 moles of ethylene oxide, preferably from 2 to 50; - (C8-C30) alkyls (poly) glucosides, optionally oxyalkylenated (0 to 10 0E) and comprising 1 to 15 glucose units; - C8-040 alcohols, mono- or poly-glycerolated, comprising from 1 to 50 moles of glycerol, preferably from 1 to 10 moles of glycerol; saturated or unsaturated, linear or branched, oxyalkylenated C8-030 fatty acid amides; saturated or unsaturated, linear or branched, C 8 -C 30 acid esters of polyethylene glycols; - and their mixtures.

Even more preferably, the agent (s) surfactant (s) (s) nonionic (s) according to the invention are selected from: - alcohols Ca-Cao, saturated or not, linear or branched, oxyalkylenés, including PPG-7-BUTETH-10 .; (C 8 -C 30) alkyl (poly) glucosides, especially caprylyl / capryl glucoside; saturated or unsaturated, linear or branched, C 8 -C 30 acid esters of polyethylene glycols and in particular PEG-8 isostearate; - and their mixtures. The composition according to the invention may comprise one or more cationic surfactant (s). The term "cationic surfactant" means a surfactant positively charged when it is contained in the composition according to the invention. This surfactant may carry one or more positive permanent charges or contain one or more cationizable functions within the composition according to the invention.

The cationic surfactant (s) is (are) preferably chosen from primary, secondary or tertiary fatty amines, optionally polyoxyalkylenated, or their salts, quaternary ammonium salts, and mixtures thereof. Fatty amines generally comprise at least one C8-C30 hydrocarbon chain.

By way of quaternary ammonium salts, mention may be made, for example, of: - those corresponding to the following general formula (I): R 8 / Rio NR ((I) in which the groups R 8 to R 11, which may be identical or different, represent a linear or branched aliphatic group containing from 1 to 30 carbon atoms, or an aromatic group such as aryl or alkylaryl, at least one of the groups R8 to R11 denoting a group containing from 8 to 30 carbon atoms preferably, from 12 to 24 carbon atoms The aliphatic groups may comprise heteroatoms such as in particular oxygen, nitrogen, sulfur and halogens, the aliphatic groups are, for example, chosen from C1-C30 alkyl groups. C1-C30 alkoxy, polyoxyalkylene (C2-06), C1-C30 alkylamide, (C1-C22) alkylamido (C2-C6) alkyl, (C12-C22) alkyl, and C1-C30 hydroxyalkyl; X is an anion chosen from the group of halides, phosphates, acetates, lactates, alkyl (C 1-C4) sulfates, (C1-C4) alkyl or (C1-C4) alkylsulphonates. Among the quaternary ammonium salts of formula (I), tetraalkylammonium salts, for example dialkyl dimethylammonium or alkyltrimethylammonium salts, in which the alkyl group comprises from about 12 to 22 carbon atoms, are preferred. carbon, in particular the salts of behenyltrimethylammonium, distearyldimethylammonium, cetyltrimethylammonium, benzyldimethylstearylammonium or, on the other hand, the salts of palmitylamidopropyltrimethylammonium, of stearamidopropyltrimethylammonium, the salts of stearamidopropyldimethylcétéaryl ammonium, or the salts of stearamidopropyldimethyl- (myristylacetate) -ammonium marketed under the name CERAPHYL® 70 by the company VAN DYK. It is particularly preferred to use the chloride salts of its compounds. the quaternary ammonium salts of imidazoline, such as, for example, those of the following formula (II): ## STR2 ## wherein R 1 N C 1 -C 12 -N (R 15) -CO-R 2 N N CC 2 H 2 (II) in which R12 represents an alkenyl or alkyl group having 8 to 30 carbon atoms, for example fatty acid derivatives of tallow, R13 represents a hydrogen atom, a C1-C4 alkyl group or an alkenyl or alkyl group containing from 8 to 30 carbon atoms, R14 represents a C1-C4 alkyl group, R15 represents a hydrogen atom, a C1-C4 alkyl group, X is an anion chosen from the group of halides, phosphates, acetates, lactates, alkyl sulphates, alkyl- or alkylaryl-sulfonates, the alkyl and aryl groups of which preferably comprise 1 to 20 carbon atoms and 6 to 30 carbon atoms, respectively. Preferably, R12 and R13 denote a mixture of alkenyl or alkyl groups containing from 12 to 21 carbon atoms, for example fatty acid derivatives of tallow, R14 denotes a methyl group, R15 denotes a hydrogen atom. Such a product is for example marketed under the name REWOQUAT® W 75 by the company REVVO; the quaternary di or triammonium salts, in particular of formula (III): ## STR5 ## in which R16 denotes a alkyl radical containing about 16 to 30 carbon atoms optionally hydroxylated and / or interrupted by one or more oxygen atoms, R17 is chosen from hydrogen or an alkyl radical containing from 1 to 4 carbon atoms or a group (R16a R17a, R17a, R18a, R18, R19, R20 and R21, which may be identical or different, are chosen from hydrogen or an alkyl radical containing from 1 to 4 and X is an anion selected from the group of halides, acetates, phosphates, nitrates and methylsulfates. Such compounds are, for example, Finquat CT-P proposed by Finetex (Quaternium 89), Finquat CT proposed by Finetex (Quaternium 75), X-quaternary ammonium salts containing at least one ester function, such as those of the following formula (IV): (CsH 2 s 0) z - R 25 O 1 R 24 - C - (ORCH 2 R)), N + (CtH 2 O) x - R 23 X - R 22 (IV) in which: R 22 is chosen from C1-C6 alkyl groups and C1-C6 hydroxyalkyl or dihydroxyalkyl groups; R 23 is chosen from: O - the group R 26 C- - the groups R 27 which are linear or branched, saturated or unsaturated C 1 -C 22 hydrocarbon groups, - the hydrogen atom, R 25 is chosen from: O - the R28 group C- - R29 groups which are linear or branched, saturated or unsaturated hydrocarbon groups C1-C6, - the hydrogen atom, R24, R26 and R28, which are identical or different, are chosen from hydrocarbon groups in 07-021, linear or branched, saturated or unsaturated; r, s and t, identical or different, are integers ranging from 2 to 6; y is an integer from 1 to 10; x and z, which are identical or different, are integers ranging from 0 to 10; X is a simple or complex anion, organic or inorganic; with the proviso that the sum x + y + z is from 1 to 15, that when x is 0 then R23 is R27 and that when z is 0 then R25 is R29.

The alkyl groups R22 may be linear or branched and more particularly linear. Preferably, R 22 denotes a methyl, ethyl, hydroxyethyl or dihydroxypropyl group, and more particularly a methyl or ethyl group. Advantageously, the sum x + y + z is from 1 to 10.

When R 23 is a hydrocarbon R 27 group, it may be long and have 12 to 22 carbon atoms, or short and have 1 to 3 carbon atoms. When R 25 is a hydrocarbon R 29 group, it preferably has 1 to 3 carbon atoms.

Advantageously, R24, R26 and R28, which are identical or different, are chosen from linear or branched, saturated or unsaturated Cil-021 hydrocarbon groups, and more particularly from linear or branched, saturated Cil-021 alkyl and alkenyl groups. or unsaturated. Preferably, x and z, identical or different, are 0 or 1.

Advantageously, y is equal to 1. Preferably, r, s and t, identical or different, are 2 or 3, and even more particularly are equal to 2. The anion X is preferably a halide (chloride, bromide or iodide ) or an alkyl sulphate more particularly methyl sulphate. However, it is possible to use methanesulphonate, phosphate, nitrate, tosylate, an anion derived from an organic acid such as acetate or lactate or any other anion compatible with ammonium with an ester function. Anion X is even more particularly chloride or methylsulfate. In the composition according to the invention, the ammonium salts of formula (IV) are used more particularly in which: R 22 denotes a methyl or ethyl group, x and y are equal to 1; z is 0 or 1; r, s and t are 2; R 23 is chosen from: 0 - the group R 26 C - methyl, ethyl or C 14 -C 22 hydrocarbon groups, - the hydrogen atom; R 25 is selected from: 0 - the group - the hydrogen atom; R28 R24, R26 and R28, which are identical or different, are chosen from linear or branched, saturated or unsaturated C13-C17 hydrocarbon-based groups, and preferably from linear or branched, saturated or branched C13-C17 alkyl and alkenyl groups; unsaturated.

Advantageously, the hydrocarbon groups are linear. There may be mentioned, for example, the compounds of formula (IV) such as the salts (in particular chloride or methylsulfate) of diacyloxyethyl-dimethylammonium, of diacyloxyethyl-hydroxyethyl-methylammonium, of monoacyloxyethyl-dihydroxyethylmethylammonium, of triacyloxyethyl-methylammonium, of monoacyloxyethylhydroxyethyl-dimethylammonium and their mixtures. The acyl groups preferably have from 14 to 18 carbon atoms and come more particularly from a vegetable oil such as palm oil or sunflower oil. When the compound contains more than one acyl group, the latter groups may be identical or different. These products are obtained, for example, by direct esterification of triethanolamine, triisopropanolamine, alkyldiethanolamine or alkyldiisopropanolamine, optionally oxyalkylenated, with C10-C30 fatty acids or with mixtures of C10-C30 fatty acids. plant or animal origin, or by transesterification of their methyl esters. This esterification is followed by quaternization using an alkylating agent such as an alkyl halide (preferably methyl or ethyl), a dialkyl sulphate (preferably methyl or ethyl), methanesulfonate. methyl, para-toluenesulfonate methyl, chlorohydrin glycol or glycerol. Such compounds are, for example, sold under the names DEHYQUART® by the company HENKEL, STEPANQUAT® by the company STEPAN, 25 NOXAMIUM® by the company CECA, REWOQUAT® VVE 18 by the company REWOWITCO. The composition according to the invention may contain, for example, a mixture of quaternary ammonium mono-, di- and triester salts with a majority by weight of diester salts. It is also possible to use the ammonium salts containing at least one ester function described in US-A-4874554 and US-A-4137180. Behemoylhydroxypropyltrimethylammonium chloride proposed by KAO can be used under the name Quatarmin BTC 131. Preferably, the ammonium salts containing at least one ester function contain two ester functions.

Among the quaternary ammonium salts containing at least one useful ester function, it is preferred to use dipalmitoylethylhydroxyethylmethylammonium salts. The cationic surfactants are preferably chosen from those of formula (I) and those of formula (IV), and even more preferably from those of formula (I). The composition according to the invention may comprise one or more anionic surfactant (s).

The term "anionic surfactant" means a surfactant comprising as ionic or ionizable groups only anionic groups. These anionic groups are preferably chosen from -COOH, -000-, -SO 3 H, -SO 3, -SO 3 H, -OSO 3, -PO 2 H 2, -PO 2 H-, -PO 2 -, -P (OH) 2, = P groups ( 0) OH, -P (OH) O-, = P (O) O-, = POH, = PO-, the anionic parts comprising a cationic counterion such as an alkali metal, an alkaline earth metal, or a ammonium. As examples of anionic surfactants that may be used in the composition according to the invention, mention may be made of alkyl sulphates, alkyl ether sulphates, alkylamido ether sulphates, alkylaryl polyether sulphates, monoglyceride sulphates, alkyl sulphonates, alkyl amide sulphonates and alkyl aryl sulphonates. alpha-olefinsulfonates, paraffin sulfonates, alkylsulfosuccinates, alkylethersulfosuccinates, alkylamidesulfosuccinates, alkylsulfoacetates, acylsarcosinates, acylglutamates, alkylsulfosuccinamates, acylisethionates and N-acyltaurates, monoesters alkyl and polyglucoside polycarboxylic acids, acyllactylates, D-galactoside uronic acid salts, alkyl ether carboxylic acid salts, alkyl aryl ether carboxylic acid salts, alkyl amidoether carboxylic acids, alkyl or alkenyl phosphates and the corresponding non-salified forms of all these compounds the alkyl and acyl groups of all these compounds having from 6 to 40 carbon atoms and the aryl group denoting a phenyl group. These compounds may be oxyethylenated and then preferably comprise from 1 to 50 ethylene oxide units. The salts of C6-C24 alkyl monoesters and of polyglucoside-polycarboxylic acids may be chosen from C6-C24 alkyl polyglucoside-citrates, C6-C24 alkyl polyglucoside-tartrates and polyglucosides-sulphosuccinates. C6-O24 alkyl. When the anionic surfactant (s) are in the salt form, they may be chosen from alkali metal salts such as sodium or potassium salt and preferably sodium salt, sodium salts or ammonium, salts of amines and in particular of aminoalcohols or salts of alkaline earth metals such as magnesium salts. By way of example of aminoalcohol salts, mention may be made in particular of the salts of mono-, di- and triethanolamine, the salts of mono-, di- or triisopropanolamine and the salts of 2-amino-2-methyl-1-one. propanol, 2-amino-2-methyl-1,3-propanediol and tris (hydroxymethyl) amino methane. The alkali metal or alkaline earth metal salts and in particular the sodium or magnesium salts are preferably used. Of the abovementioned anionic surfactants, it is preferred to use (C6-C24) alkylsulphates, (C6-C24) alkylsulphates, (C6-C24) alkyls, or (C6-C24) alkenyls containing from 2 to 50 oxide units. ethylene, especially in the form of alkali metal salts, ammonium, aminoalcohols, and alkaline earth metals, or a mixture of these compounds. In particular, it is preferred to use (C 12 -C 20) alkyl sulphates, C 12 -C 20 alkyl ether sulphates, C 12 -C 24 alkyl or C 12 -C 24 alkenyl phosphates comprising from 2 to 20 ethylene oxide units. especially in the form of alkali metal salts, ammonium, aminoalcohols, and alkaline earth metals, or a mixture of these compounds. More preferably, it is preferred to use oleth-20 phosphate. The composition according to the invention may comprise one or more surfactant (s) amphoteric (s) or zwitterionic (s). In particular, the amphoteric (s) or zwitterionic (s) surfactant (s), preferably non-silicone surfactants, that may be used in the present invention may in particular be derivatives of secondary or tertiary aliphatic amines, optionally quaternized, in which the aliphatic group is a linear or branched chain having 8 to 22 carbon atoms, said amine derivatives containing at least one anionic group such as, for example, a carboxylate group, sulfonate, sulfate, phosphate or phosphonate. Mention may in particular be made of (C 8 -C 20) alkyl betaines, (C 8 -C 20) alkyl sulfobetaines, (C 8 -C 20) alkylamido (C 3 -C 8) alkylbaines and (C 8 -C 20) alkylamidoylalkyl (C 6 C8) sulfobetaines.

Among the derivatives of secondary or tertiary aliphatic amines, optionally quaternized that can be used, as defined above, there may also be mentioned the compounds of respective structures (V) and (VI): Ra-CONHCH2CH2-N + (Rb) (Rc) ) -CH 2 CO 2 -, M +, X (V) Formula in which: - Ra represents a C 10 -C 30 alkyl or alkenyl group derived from an acid RaCOOH, preferably present in hydrolysed coconut oil, a heptyl or nonyl group; or undecyl; Rb represents a beta-hydroxyethyl group; and - R, represents a carboxymethyl group; M + represents a cationic counterion derived from an alkali metal, alkaline earth metal, such as sodium, an ammonium ion or an ion derived from an organic amine, and - X represents an organic or inorganic anionic counterion, such as the one chosen among the halides, acetates, phosphates, nitrates, (C 1 -C 4) alkyl sulphates, (C 1 -C 4) alkyl or (C 1 -C 4) alkylarylsulfonates, in particular methylsulphate and ethylsulphate; or else M + and X are absent; Ra'-CONHCH2CH2-N (B) (B ') (VI) Formula wherein: - B represents the group -CH2CH2OX'; B 'represents the group - (CH2), Y', with z = 1 or 2; X 'represents the group -CH2COOH, -CH2CH2COOH, -C1-12C1-12-000Z', or a hydrogen atom; Y 'represents the group -COOH, -COOZ', -CH2CH (OH) SO3H or the group CH2CH (OH) SO3-Z '; Z 'represents a cationic counterion derived from an alkaline or alkaline earth metal, such as sodium, an ammonium ion or an ion derived from an organic amine; Ra 'represents a C10-C30 alkyl or alkenyl group of a Ra'-COOH acid preferably present in coconut oil or in hydrolysed linseed oil, an alkyl group, in particular in O17 and its iso form; , a group in 017 unsaturated.

These compounds are classified in the CTFA dictionary, 5th edition, 1993, under the names cocoamphodiacétate disodium, lauroamphodiacétate disodium, caprylamphodiacétate disodium, capryloamphodiacétate disodium, cocoamphodipropionate disodium, lauroamphodipropionate disodium, caprylamphodipropionate disodium, capryloamphodipropionate disodium, acid lauroamphodipropionic, cocoamphodipropionic acid. By way of example, mention may be made of cocoamphodiacetate marketed by Rhodia under the trade name MIRANOL® C2M concentrate. It is also possible to use compounds of formula (VII); Ra "-NHCH (Y") - (CH2) r, CONH (CH2) n -N (Rd) (Re) Formula wherein: Y "represents the group -COOH, -COOZ", -CH2-CH (OH) SO 3 H or the group CH 2 CH (OH) SO 3 Z 2 - Rd and Re, independently of one another, represent a C 1 -C 4 alkyl or hydroxyalkyl radical; Z 2 represents a cationic counterion derived from an alkali metal or alkaline earth metal, such as sodium, an ammonium ion or an ion derived from an organic amine; Ra "represents a C 10 -C 30 alkyl or alkenyl group of an acid Ra" - COOH, preferably present in coconut oil or in hydrolysed linseed oil; n and n ', independently of one another, denotes an integer ranging from 1 to 3. Among the compounds of formula (VII), mention may be made of the compound classified in the CTFA dictionary under the name sodium diethylaminopropyl cocoaspartamide and marketed by CHIMEX under the name CHIMEXANE HB. These compounds can be used alone or in mixtures. Among the amphoteric or zwitterionic surfactants mentioned above, use is preferably made of alkyl (C 8 -C 20) betaines such as cocobetaine, (C 8 -C 20) alkylamido (C 3 -C 8) alkyl betaines such as cocamidopropylbetaine, and mixtures thereof, the compounds of formula (VII) such as the sodium salt of diethylaminopropyl laurylamino succinamate (INCI name: sodium diethylaminopropyl cocoaspartamide). Among all the surfactants mentioned, it is preferred to use one or more nonionic surfactant (s), preferably oxyethylenated (s) such as oxyethylenated Ca-Cao alcohols comprising from 1 to 100 moles of ethylene oxide, preferably from 2 to 50, more preferably from 2 to 40 moles of ethylene oxide, and phosphate anionic surfactants such as (C6-C24) alkyl or (C6-C24) alkenyl; phosphates comprising from 2 to 50 ethylene oxide units.

When present, the surfactant (s) represent (s) from 0.001 to 20%, preferably from 0.005 to 15%, more preferably from 0.01 to 10% by weight, relative to the total weight of the composition. The composition may also comprise one or more thickeners. For the purposes of the present invention, the term "thickener" is understood to mean an agent which, introduced at 1% by weight in an aqueous or aqueous-alcoholic solution containing 30% of ethanol, and at pH = 7, makes it possible to attain a viscosity of at least 100 mPa.s (100 cPs), preferably at least 500 mPa.s (500 cPs), at 25 ° C and at a shear rate of 1 s1. This viscosity can be measured using a cone / plane viscometer (Haake R600 Rheometer or the like). The thickening agents may be chosen from fatty acid amides obtained from C 10 -C 30 carboxylic acids, such as monoisopropanol, diethanol or coconut acid monoethanol amide and alkyl ether acid monoethanolamide. oxyethylenated carboxylic acid, non-cationic, preferably nonionic, cellulosic thickeners, such as hydroxyethylcellulose, hydroxypropylcellulose and carboxymethylcellulose, guar gum and its nonionic derivatives such as hydroxypropylguar, gums of microbial origin, such as such as xanthan gum, scleroglucan gum, crosslinked homopolymers and copolymers based on acrylic acid or methacrylic acid or acrylamidopropanesulphonic acid, and non-cationic associative polymers, in particular acrylic or polyurethane polymers, as described hereinabove. -Dessous. The associative polymers that can be used according to the invention are water-soluble or water-dispersible polymers capable, in an aqueous medium, of reversibly associating with each other or with other molecules. Their chemical structure comprises hydrophilic zones, and hydrophobic zones characterized by the presence of at least one fatty chain preferably comprising from 10 to 30 carbon atoms. They may be of anionic, cationic, amphoteric or nonionic type, such as, for example, the polymers sold under the names Pemulen TR1 or TR2 by the company Goodrich, whose INCI name is Acrylates / C10-30 Alkyl Acrylate Crosspolymer, SALCARE SC90 by the company CIBA, ACULYN 22, 28, 33, 44, 46 or 88 by the company ROHM & HAAS and ELFACOS T210 and T212 by the company AKZO. Among the thickeners mentioned, acrylic associative thickeners are preferably used.

If they are present, the thickeners may be present in an amount ranging from 0.01% to 20% by weight, preferably from 0.1% to 10% by weight, better still from 0.2% to 5% by weight relative to the weight. The composition according to the invention may further contain one or more additives chosen from anionic fixing polymers different from the acrylic copolymers according to the invention, the amphoteric fixing polymers and the nonionic fixing polymers, the conditioning agents such as cationic polymers other than cationic polymers obtained by radical polymerization or grafting, fatty substances, silicones, ceramides and pseudo-ceramides, vitamins and pro-vitamins including panthenol, water-soluble and fat-soluble sunscreens, pearlescent agents and opacifiers , sequestering agents, solubilizing agents, antioxidants, hydroxy acids, penetration agents, rfums, peptizers, amino-acids and preservatives, alone or in admixture, and any other additive conventionally used in the cosmetics field. Those skilled in the art will take care to choose the possible additives and their amounts so that they do not adversely affect the properties of the compositions of the present invention. These additives may be 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. The compositions according to the invention may be present inter alia in the form of more or less thickened liquids, gels, creams, pastes or foams. Preferably, the compositions are in the form of gels.

The compositions in accordance with the invention may be packaged for example in a jar, in a tube, in a pump bottle or in an aerosol device that is usual in cosmetics. The compositions according to the invention may, when they are intended to be packaged in an aerosol type device, contain one or more propellant gases.

The propellant gas may then be chosen for example from volatile hydrocarbons, such as in particular C 1 to C 4 alkanes and preferably n-butane, propane, isobutane and mixtures thereof, chlorinated and / or fluorinated hydrocarbons, in particular 1,1-difluoroethane, dimethyl ether and mixtures of these gases. Preferably, the propellant is chosen from 1,1-difluoroethane, dimethyl ether, n-butane, propane and isobutane, and mixtures thereof. When it contains, the composition comprises a propellant in a content ranging from 2 to 75% by weight, more preferably from 2 to 60% by weight, relative to the total weight of said composition.

When the composition is distributed in the form of an aerosol spray, the composition comprises a propellant in a content preferably ranging from 20 to 60% by weight, relative to the total weight of said composition. When the composition is distributed in the form of an aerosol foam, the composition comprises a propellant in a content preferably ranging from 2 to 10% by weight, relative to the total weight of said composition. The present invention also relates to a method for shaping and / or maintaining the hairstyle comprising the implementation of the composition as defined above.

In particular, the method of shaping and / or maintaining the hairstyle comprises a step of application to human keratinous fibers, in particular the hair, dry or wet, of a composition as defined previously pulverized, to rinse or not after a possible exposure time or after any drying.

Preferably, the composition according to the invention is not rinsed. The cosmetic composition according to the invention can thus be applied to dry or wet hair. Preferably, the cosmetic composition is applied to clean hair. According to a particular embodiment of the invention, the application of the composition may be followed by drying at room temperature or at a temperature above 40 ° C. Drying can be carried out immediately after application or after a laying time ranging from 1 minute to 30 minutes. According to one embodiment, the composition is applied from an aerosol device. The aerosol device comprises a pressurized container containing the composition described above, the container being surmounted by a diffuser. The container may be equipped with a valve. The diffuser may be provided with an outlet orifice of the composition, in particular a single-orifice or swirling channel nozzle, or several outlet orifices, in particular three orifices. Any type of container and valve system for aerosol composition is suitable for carrying out the present invention. The present invention also relates to the use of a composition as defined above, for shaping and / or maintaining the hairstyle. The examples which follow serve to illustrate the invention without, however, being limiting in nature.

EXAMPLE The following compositions A and B according to the invention can be prepared from the ingredients indicated in the table below in grams of active material: Lacquer composition according to the invention: AB Copolymer AMP-acrylates / C1-C18 alkylacrylate / CiCg alkylacrylamide / hydroxyethylacrylate (1) 4 3 Polyquaternium-6 (2) 2 3 Dimethyl ether 50 50 Water - 30 Ethanol Qs 100 Qs 100 (1) PLASCIZE® L-9700U marketed by the company GOO CHEMICAL (Copolymer AMP-acrylates / C1- C18 alkylacrylate / C1-C8 alkylacrylamide / hydroxyethylacrylate at 38%, Oleth-20 phosphate at 1%, PPG-7-Buteth-10 at 1% and ethanol at 60%) (2) Merquat 100 marketed by NALCO can be introduced the above compositions in an aerosol dispensing device. A valve may be used comprising: - a 0.33 mm nozzle orifice, - no additional gas intake orifice, - an internal restriction orifice of 0.33 mm. A diffuser with a 0.45 mm diameter outlet channel vortex nozzle can be used.

The compositions can be sprayed on dry hair.

Claims (18)

REVENDICATIONS1. A composition comprising: (i) one or more acrylic copolymers comprising as monomers: (a) at least one unsaturated acidic monomer selected from acrylic or methacrylic acids or their salts; (b) at least one acrylate or methacrylate unsaturated ester monomer having in its structure at least one linear or branched chain fatty alkyl group, preferably having a C 8 -C 30 alkyl group, more preferably a C 10 -C 16 alkyl group, better in C12-C13; (c) at least one unsaturated ester monomer of acrylate or methacrylate type having in its structure at least one short-chain alkyl group, linear or branched, preferably branched, preferably having a C 2 -C 6 alkyl group, more preferably C3-05, better in C4; and (d) at least one acrylamide monomer having a linear or branched, preferably branched, alkyl group, preferably having a C 3 -C 10 alkyl group, preferably a C 1 -C 6 alkyl group; (ii) one or more cationic polymer (s) obtained by radical polymerization or grafting. 2. Composition according to claim 1, characterized in that the copolymer further comprises, as monomer, one or more hydroxylated ester monomers of acrylic or methacrylic acid, preferably a C2-C6 hydroxylated alkyl acrylate or methacrylate, more preferably acrylate or hydroxyethyl methacrylate. 3. Composition according to any one of the preceding claims, characterized in that the acrylic or methacrylic acids or their salts are present in a content ranging from 2 to 10% by weight, preferably from 5 to 9% by weight relative to weight of the copolymer. 4. Composition according to any one of the preceding claims, characterized in that the monomer (s) ester (s) unsaturated (s) of acrylate or methacrylate type having in its structure or structure at least one alkyl group with a fatty chain. is or are present in a content ranging from 0.1 to 5% by weight, preferably from 0.5 to 3% by weight, better still from 1 to 2% by weight relative to the total weight of the copolymer. 5. Composition according to any one of the preceding claims, characterized in that the monomer (s) ester (s) unsaturated (s) of acrylate or methacrylate type having in its structure or structure at least one short-chain alkyl group is or are present in a content ranging from 50 to 95% by weight, preferably from 60 to 90% by weight, better still from 70 to 85% by weight relative to the total weight of the copolymer. 6. Composition according to any one of the preceding claims, characterized in that the monomer (s) acrylamide (s) substituted (s) with at least one alkyl group is or are present (s) in a content ranging from 0, 0.1 to 10% by weight, preferably 1 to 5% by weight relative to the weight of the copolymer. 7. Composition according to any one of the preceding claims, characterized in that the molecular weight of the acrylic copolymer ranges from 20000 to 500000 g / mol, preferably from 100000 to 250000 g / mol. 8. Composition according to any one of the preceding claims, characterized in that the acrylic copolymer is present in a content ranging from 0.5 to 20% by weight, preferably from 1 to 10% by weight relative to the total weight of the composition. 9. Composition according to any one of the preceding claims, characterized in that it comprises a surfactant chosen from nonionic, anionic, cationic, amphoteric or zwitterionic surfactants, preferably from nonionic and anionic surfactants, preferably oxyethylenated surfactants. . 10. Composition according to the preceding claim, characterized in that the agent (s) surfactant (s) represent from 0.001 to 20%, preferably from 0.005 to 15%, better from 0.01 to 10% by weight, relative to to the total weight of the composition. 30 11. Composition according to any one of the preceding claims, characterized in that the cationic polymer (s) obtained by radical polymerization or grafting are chosen from (1) homopolymers or copolymers derived from esters. or acrylic or methacrylic amides and having at least one of the following units of formulas (a), (b), (c) and (d): R5 (a) (b) C -CH2-C-O Wherein R 3 and R 4, which may be identical or different, are selected from the group consisting of: ## STR5 ## wherein R 3 and R 4, which may be identical or different, , represent a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms, and preferably a methyl or ethyl group, R5, identical or different, denote a hydrogen atom or a group CH3, A, identical or different different, represent a linear or branched alkyl group of 1 to 6 carbon atoms, preferably of 2 or 3 carbon atoms or a hydroxyalkyl group comprising from 1 to 4 atoms of carbon, R6, R7, R8, which may be identical or different, represent an alkyl group having from 1 to 18 carbon atoms or a benzyl group, and preferably an alkyl group having from 1 to 6 carbon atoms, X denotes a derived anion a mineral or organic acid, preferably a methosulphate anion, or a halide, more preferably a chloride or bromide; (2) cyclopolymers of alkyl diallyl amine or dialkyl diallyl ammonium, such as homopolymers or copolymers comprising, as main constituent of the chain, units corresponding to formulas (e) or (f): (CH 2) t CR 12 (CH 2) C (R12) -CH2 CH2 + C1-12 / NR10 R11Y- (CH2) t CR12CtkC (R12) -CH2CH1-12-12R10 in which k and t are equal to 0 or 1, the sum k + when t is equal to 1, R12 denotes a hydrogen atom or a methyl group, R10 and R11, independently of one another, denote an alkyl group having from 1 to 6 carbon atoms, a hydroxyalkyl group in which the alkyl group preferably has 1 to 5 carbon atoms, a lower amidoalkyl group (C1-C4), or R10 and R11 may designate together with the nitrogen atom to which they are attached, heterocyclic groups, such as piperidinyl or morpholinyl , Y- is an anion such as bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, sulfate, p hosphate; (3) quaternary polymers of vinylpyrrolidone and / or vinylimidazole; (4) cationic polysaccharides, and preferably cationic celluloses and galactomannan gums; (5) cationic proteins or cationic protein hydrolysates; (6) oxyalkylenated polyamines; (7) polyalkyleneimines, in particular polyethyleneimines and polymers comprising in their structure: (a) one or more units corresponding to the following formula (A): CF-I2CF-IN H2 (A) (b) optionally one or more units having the following formula (B): CH2CHNHCOH (B); (e) (f) (8) polymers containing vinylpyridine or vinylpyridinium units, quaternary polyureylenes; (9) cationic derivatives of chitin. 12. Composition according to claim 11, characterized in that the cationic polymer (s) obtained by radical polymerization or grafting are chosen from those of families (2), (3), (4) and (7), and preferably from those of the family (2). 13. Composition according to any one of the preceding claims, characterized in that the cationic polymer (s) obtained by radical polymerization or grafting are present in a content ranging from 0.001 to 15% by weight and preferably from 0.1 to 10%, and more preferably from 1 to 7% by weight relative to the total weight of the composition. 14. Composition according to any one of the preceding claims, characterized in that it comprises one or more solvent (s), the solvent (s) being preferably selected from water, organic solvents preferably water-soluble, alone or in a mixture, preferably from water and / or ethanol. 15. Composition according to the preceding claim, characterized in that the solvent or solvents are present in a content ranging from 30 to 95%, preferably from 40 to 95% by weight, relative to the total weight of the composition. 16. Composition according to any one of the preceding claims, characterized in that it contains one or more propellants, preferably chosen from 1, 1-difluoroethane, dimethylether, n-butane and propane. isobutane and mixtures thereof. 17. A method of shaping and / or maintaining the hairstyle, characterized in that it consists in applying to the hair an effective amount of a composition according to any one of claims 1 to 16. 18. Use of the composition according to one of claims 1 to 16 for shaping and / or maintaining the hairstyle.