FR2977155A1 - Cosmetic composition, useful e.g. as make up composition e.g. mascara, comprises a polyalkene-based supramolecular polymer capable of resulting from reaction of functionalized polyalkene polymer and linking group, and an amide compound - Google Patents

Abstract

Cosmetic composition comprises, in a medium, at least one polyalkene-based supramolecular polymer capable of resulting from the reaction of at least one functionalized polyalkene polymer by at least one reactive function and of at least one linking group functionalized by at least one reactive function capable of reacting with the reactive functions carried by functionalized polyalkene polymer, and/or at least one amide compound (I), where the compounds are in the form of free acid or salt. Cosmetic composition comprises, in a medium, at least one polyalkene-based supramolecular polymer capable of resulting from the reaction of at least one functionalized polyalkene polymer by at least one reactive function and of at least one linking group functionalized by at least one reactive function capable of reacting with the reactive functions carried by functionalized polyalkene polymer, where the linking group is capable of forming at least 3, preferably 4 hydrogen bonds, and/or at least one amide compound of formula (I) or its salt, isomer and/or solvate, where the compounds are in the form of free of acid or salt. R1a : H, or linear 1-20C or branched 3-20C alkyl; R2a : linear 1-20C or branched 3-20C alkyl containing 5-6C ring, or 5-6C cycloalkyl (optionally substituted by one or two substituents of methyl, phenyl, benzyl or phenethyl); and R3a, R4a : H, or linear 1-12C or branched 3-12C alkyl, provided that when R1a is H. [Image].

Description

The present invention relates to cosmetic compositions comprising the combination of polymer and particular solvent, and a cosmetic treatment method employing it.

There are many cosmetic compositions for which gloss properties of the deposited film, after application to keratin materials, are desired. Examples include lipsticks or nail polish. In order to obtain such a result, it is possible to associate particular raw materials, especially lanolins, with so-called brilliant oils such as polybutenes, or esters of fatty acid or alcohol whose carbon number is Student; or some vegetable oils; or esters resulting from the partial or total esterification of an aliphatic compound hydroxylated with an aromatic acid, as described in the patent application EP1097699. In order to improve the gloss and durability of the deposited film, it has also been proposed to use triglyceride-type oils, in this case castor oil, functionalized with isophorone diisocyanate (IPDI). as described in US5707612. Functionalization by IPDI significantly improves the performance and brightness of castor oil; the oils thus crosslinked find an application especially in the field of lipsticks.

However, it has been found that these crosslinked oils, if they provide resistance and gloss to the deposit, do not make it possible to obtain on the keratinous substrate a homogeneous and cohesive deposit, which forms a uniform film, and which is in addition not sticky and without transfer.

It was then proposed, for example by the application FR2938760, cosmetic compositions which make it possible to obtain a film-forming deposit on the substrate, said film combining the gloss and the hold of the composition, even the non-transfer, while being particularly comfortable to wear. This is possible thanks to the use of a supramolecular polyalkene polymer obtainable by reaction between a polyalkene functionalized with at least one reactive group, and a linking group functionalized with a reactive group capable of reacting with the reactive group. the polyalkene functionalized, said junction group being capable of forming at least 3 H bonds. However, it has been found that the polyalkene supramolecular polymers thus obtained were not easily manipulated in lipophilic solution, because of their too high viscosity; it is therefore difficult to convey high solids (in large quantities) in lipophilic solvents common in cosmetics, such as isododecane, which limits and makes it more difficult to implement them in cosmetic formulations.

There is therefore the need to find new solvents to convey, in particular to solubilize or disperse, effectively the supramolecular polymers defined above.

However, the Applicant has now discovered, surprisingly, that a particular family of solvents, consisting of 4-carboxy 2-pyrrolidinone derivatives of formula given below, achieved this goal.

An object of the present invention is therefore a cosmetic composition comprising, in a cosmetically acceptable medium, (i) at least one supramolecular polymer based on polyalkene, capable of being derived from the reaction of at least one functionalized polyalkene polymer with at least one reactive function, with at least one linking group functionalized by at least one reactive functional group capable of reacting with the reactive function (s) carried by the functionalized polyalkene polymer, said joining group being capable of forming at least 3 H bonds (hydrogen ), preferably at least 4 H bonds, preferably 4 H bonds; and (ii) at least one compound of formula (I '), alone or in admixture, and / or one of its salts and / or isomers and / or solvates: ## STR1 ## in which: 1 denotes a hydrogen atom or a linear C 1 -C 20 alkyl radical or C 3 -C 20 radical; R '2 denotes a linear C 1 -C 20 or branched C 3 -C 20 alkyl radical which may contain a C 5 -C 6 ring; a C5-C6 cycloalkyl radical optionally substituted by one or two methyl radicals; the phenyl radical, the benzyl radical or the phenethyl radical; R '3 and R' 4 denote, independently of one another, a hydrogen atom or a linear C 1 -C 12 or branched C 3 -C 12 alkyl radical, it being understood that when R '1 = H the compounds may be in their free acid form or in the form of their cosmetically acceptable salts.

Thanks to the invention, one can achieve a wide range of formulations, for the en-30 of cosmetics trades. Indeed, the specific physicochemical properties of the compounds of formula (I '), and in particular their character is hydrophilic or lipophilic, not only allow them to confer an excellent solvent power of supramolecular lipophilic polymers, but also a compatibility with the balance. hydrophilic / lipophilic keratin substrates such as skin and superficial body growths. In addition, these compounds (I ') have excellent compatibility with the usual cosmetic mid-places and are therefore very easy to implement for the formulator.

Moreover, the compounds (I ') according to the invention make it possible to obtain an improved spread of the formula on the skin and its integuments, which results in a homogeneous deposition and an aesthetic final effect.

The composition according to the invention therefore comprises at least one supramolecular polymer based on polyalkene (or polyolefin), said polymer being capable of generating at least 3 H bonds, in particular 4 H bonds. For the purposes of the present invention, polyalkene-based supramolecular polymer, a polymer likely to be derived from the reaction, in particular condensation, of at least one polyalkene polymer functionalized by at least one reactive functional group, with at least one linking group functionalized by at least one reactive function capable of reacting with the reactive functional group (s) carried by the functionalized polyalkene polymer, said joining group being capable of forming at least 3 H (hydrogen) bonds, preferably at least 4 H bonds, preferably 4 H bonds. supramolecular composition according to the invention is capable of forming a supramolecular polymer chain or network, by (auto) assembling said polymer with at least one other polymer, identical or different, each assembly involving at least one pair of paired joining groups, identical or different, carried by each of the polymers according to the invention. For the purposes of the invention, the term "linking group" means any group comprising donor groups or acceptors of H bonds and capable of establishing at least three H bonds, preferably at least four H bonds, preferably four H bonds, with a partner junction group, identical or not. These junction groups may be lateral to the polymeric backbone (in side branching), and / or carried by the ends of the polymeric backbone, and / or in the chain forming the polymeric backbone. They can be randomly or controlled. By "polyalkene" or polyolefin is meant in the present invention a polymer likely to be derived from the polymerization of at least one monomer of the alkene type, comprising ethylenic unsaturation, said monomer may be during or in the main chain said polymer. The term "polyalkene" thus refers to polymers that may or may not include a double bond in the end. Preferably, the supramolecular polymers based on polyalkene according to the invention are prepared from a polymer resulting from the polymerization of an alkene comprising at least two ethylenic unsaturations.

Preferably, the functionalized polyalkene polymer, capable of forming all or part of the polymer backbone of the supramolecular polymer according to the invention, is of formula HX-P-X'H in which: XH and X'H are reactive functions, with X and X ', which are identical or different, chosen from O, S, NH, or NRa, Ra representing a C1-C6 alkyl group; preferably, X and / or X 'denote O; preferentially, X and X 'denote O; P represents a homo- or a copolymer obtainable by polymerization of one or more C 2 -C 10, preferably C 2 -C 4, mono or polyunsaturated, linear, cyclic and / or branched alkenes, preferentially mono-unsaturated, linear or branched, C2-C4. Preferably, the functionalized polyalkene polymer, capable of forming all or part of the polymer backbone of the supramolecular polymer according to the invention, is of formula HO-P-OH in which P represents a homo- or copolymer obtainable by polymerization. of one or more linear, cyclic and / or branched, polyunsaturated, especially diunsaturated alkenes, of C2-C10, preferably of C2-C4.

Preferably, P represents a polymer chosen from a polyethylene, a polybutylene, a polybutadiene, a polyisoprene, a poly (1,3-pentadiene), a polyisobutylene, and their copolymers, and in particular a poly (ethylene / butylene).

Poly (ethylene / butylene) are copolymers of butene-1 and ethylene. They can be schematized by the following sequence of motifs: [-CH2-CH2-] and [-CH2CH (CH2-CH3) -]

The polybutadienes may be 1,4-polybutadienes or 1,2-polybutadienes, which may be schematized by the following chains of units, respectively: [-CH2-CH = CH-CH2-] (1,4-polybutadienes) [ -CH 2 -CH (CH = CH 2) -] (1,2-polybutadienes) Preferably, P is a homopolymer of polybutadiene, especially 1,2-polybutadiene.

The polyisoprenes can be schematized by the following sequences of units: ## STR1 ## It is of course also possible to use a mixture of the above units in order to form copolymers.

Preferably, the functionalized polyalkene polymers have a number-average molecular weight (Mn) of between 1000 and 8000, especially between 1200 and 5000, even between 1500 and 4500, and even better between 2000 and 4000.

The functionalized polyalkene polymers may be hydrogenated, in particular completely hydrogenated, to avoid the risks of crosslinking. The supramolecular polymers may further comprise in their structure 40 other units from other monomers. As comonomers, it is possible to mention, for example, styrene or epoxy group-containing monomers. In a preferred embodiment, they do not include and therefore consist of polyalkene polymers (1000/0) to form the polymer backbone.

The polyalkene polymers are functionalized by at least one reactive function, preferably by at least two reactive functions. The functionalization is preferably at the end of chains. We are talking about telechelic polymers. The reactive functions can be attached to the polyalkene polymer via linkers, preferably linear or branched C1-C4 alkylene groups, or directly by a single bond. As a reactive function, the OH, NH 2, NHR, SH or NCO functions may be mentioned. Preferably, the polyalkene polymers may be functionalized by OH functions, preferably at the ends; they preferably have a functionality in hydroxyl ends of 1.8 to 3, preferably close to 2.

Among the preferred functionalized polyalkene polymers, mention may be made of polydienes, preferably hydrogenated, with hydroxyl functional groups, preferably with hydroxyl ends, and polyolefins with hydroxyl ends. The polydienes with hydroxyl ends are especially defined for example in FR2782723. They can be chosen from homopolymers and copolymers of polybutadiene, polyisoprene and poly (1,3-pentadiene). Mention may in particular be made of hydroxylated polybutadienes marketed by Sartomer, such as Krasol® Resins and Poly BD® Resins. Preferably, it is homopolymers 1,2-polybutadienes hydrogenated dihydroxylated, such as those of the Nisso-PB I range, the G13000, G12000 and G11000 sold by the company Nisso. These polymers can be represented schematically by the following formula: ## STR2 ## with n being preferably between 14 and 10 5, better still between 20 and 85. Among the polyolefins with hydroxyl ends, polyolefins, homopolymers or copolymers having a hydroxyl cos such as polyisobutylenes having α, hydrox hydroxyl ends; and copolymers of the formula: in particular those marketed by Mitsubishi under the tradename POLYTAIL.

The supramolecular polymers according to the invention also have in their structure at least one residue of a linking group capable of forming at least 3 H bonds, preferably at least 4 H bonds, said joining group being initially functionalized with at least less a reactive function. Said reactive functions can be attached to the linkage group via linkers (linker) or directly by a single link. Said reactive functions must be capable of reacting with the reactive function (s) carried by the functionalized polyalkene. As a reactive functional group, mention may be made of carboxy, hydroxy, amino, thioisocyanate or isocyanate groups. Preferably, it is a -NCO or -NCS function, preferentially -NCO.

Preferably, the linker (L) is a divalent, saturated or unsaturated C 1 -C 20 carbon group, in particular chosen from linear or branched C 1 -C 20 alkylene; C 6 -C 20 (alkyl) cycloalkylene C 6 -C 20 alkylene (preferably cyclohexylene methylene), C 11 -C 20 alkylene-biscycloalkylene (preferably alkylene-biscyclohexylene, C 6 -C 20 (alkyl) arylene, alkylene-bisarylene (preferably alkylenebiphenylene), said linker L may be substituted with at least one C1-C6 alkyl group and / or may optionally comprise 1 to 4 N and / or O heteroatoms, especially in the form of NO2 substituent.

Preferably, the linker is chosen from the following groups: - (alkyl) cycloalkylene C 6 -C 20 alkylene, such as isophorone, - C 11 -C 26 alkylene-biscycloalkylene, such as 4,4'-methylene biscyclohexylene, - alkylene C1-C20, such that - (CH2) 2-; - (CH2) 6-; -CH2CH (CH3) -CH2-C (CH3) 2-CH2-CH2, and -C6-C20 (alkyl) phenylene, such as 2-methyl-1,3-phenylene. According to a particularly preferred embodiment, the linker is an alkylcycloalkylene.

Preferably, the linker is a phenylene group; 1,4-nitrophenyl; 1,2-ethylene; 1,6-hexylene; 1,4-butylene; 1,6- (2,4,4-trimethylhexylene); 1.444-methylpentylene); 1,5- (5-méthylhexylène); 1,6- (6-méthylheptylène); 1,542,2,5-trimethylhexylene); 1,7- (3,7-diméthyloctylène); -isophorone-; 4,4'-methylene biscyclohexylene; tolylene; 2-methyl-1,3-phenylene; 4-methyl-1,3-phenylene; 4,4-biphenylenemethylene. Preferably, L is chosen from -isophorone-; - (CH2) 2-; - (CH2) 6-; CH 2 CH (CH 3) -CH 2 -C (CH 3) 2 -CH 2 -CH 2; 4,4'-methylene biscyclohexylene; 2-methyl-1,3-phenylene. Isophorone means the following group: CiH 3 CH 3 The functionalized junction groups capable of forming at least 3 H bonds may comprise at least 3 functional groups, identical or different, preferably at least 4, chosen from: ## EQU1 ## These functional groups can be classified into two categories: ## STR1 ## ## STR2 ## the functional groups giving H: -C-CH -SH -OH \ / C = NH -NH -NH2 bonds-the functional groups accepting H: \ \ \ \ bonds

The joining groups capable of forming at least 3 H bonds form a basic structural element comprising at least 3 groups, preferably at least 3 groups. At least 4 groups, and more preferably 4 functional groups capable of establishing H bonds. Preferably, the linking groups can establish 4 H bonds with an identical (or autocomplementary) partner group among which 2 donor bonds (for example NH) and 2 acceptor bonds (eg CO and -C = N-). Preferably, the linking groups capable of forming at least 3 H bonds, in particular at least 4 H bonds (without the reactive function), are chosen from the ureidopyrimidones of formula (1), it being understood that all the tautomeric forms are included: Wherein: R1 represents a single bond, a hydrogen atom, a halogen atom or a carbon group (especially alkyl); monovalent, linear, branched and / or cyclic, C1-C30, saturated or unsaturated, optionally aromatic, which may contain one or more heteroatoms such as O, S, N; The radical R 1 may especially be a C 4 -C 12 cycloalkyl group, a linear or branched C 1 -C 30 alkyl group or a C 4 -C 12 aryl group, optionally substituted with an amino, thio and / or hydroxy function. Preferably, R1 is a C4H9 group; phenyl; 1,4-nitrophenyl; 1,2-ethylene; 1,6-hexylene; 1,4-butylene; 1,6- (2,4,4-trimethylhexylene); 1,444-methylpentylene); 1,5- (5-methylhexylene); 1,6- (6-methylheptylene); 1,542,2,5-trimethylhexylene); 1,7- (3,7-dimethyloctylene); -isophorone-; 4,4'-methylene biscyclohexylene; tolylene; 2-methyl-1,3-phenylene; 4-methyl-1,3-phenylene; 4,4-biphénylèneméthylène; or a single link. Preferably R1 represents -isophorone-; - (CH2) 2-; - (CH2) 6-; -CH2CH (CH3) -CH2-C (CH3) 2-CH2-CH2; 4,4'-methylene biscyclohexylene; 2-methyl-1,3-phenylene, or a single bond; R2 represents a single bond, a divalent group of C1-C6 alkylene type, or a monovalent group chosen from a hydrogen atom or a linear, branched and / or cyclic, C1-C30, saturated or saturated monovalent hydrocarbon group; no, optionally aromatic, may contain one or more heteroatoms such as O, S, N; Preferably, R2 may be a single bond or H, a C1-C30 alkyl group; a C4-C12 cycloalkyl group, a C4-C12 aryl group, a C4-C12 aryl group or a C1-C12 alkyl group; these groups being optionally substituted by an amino, thio and / or hydroxy function. Preferentially, R2 represents H, CH3, CH2OH, (CH2) 2-OH, C13H27, C7H15 or phenyl; or a single link.

- R3 represents a hydrogen atom or a linear, branched and / or cyclic, saturated or unsaturated, optionally aromatic, C1-C30 hydrocarbon-based group which may contain one or more heteroatoms such as O, S, N; Preferably, R3 may be a C4-C12 cycloalkyl group, a linear or branched C1-C30 alkyl group or a C4-C12 aryl group, optionally substituted with an amino, thio and / or hydroxy function; preferentially, R3 represents H, CH3, CH2OH, (CH2) 2-OH; and even better methyl; it being understood that at least one, in particular one or two, groups R1 and R2 is a single bond, constituting the point of attachment of the linking group capable of forming at least 3 H bonds on the rest of the graft. Preferably, said point of attachment is carried by RI which is therefore a single bond

Preferably: the radical RI (or the radicals R1 and R2) is a single bond constituting the point of attachment of the linker linker group capable of forming at least 3 H bonds (preferably 4) on the rest of the graft . Preferably, said point of attachment is borne only by RI which is a single link; and / or - the radical R2 represents a single bond, or a divalent C1-C6 alkylene group, or a hydrogen atom, or a saturated, linear or branched, saturated C 1 -C 20 monovalent hydrocarbon group which may contain one or more heteroatoms such as O, S or N, these groups being optionally substituted with a hydroxy, amino and / or thio function. Preferably, the radical R 2 may be a single bond or a mono-valent group selected from H, CH 2 OH and (CH 2) 2-OH, CH 3. According to a particularly preferred embodiment, R2 is H; and / or - the radical R3 represents a divalent or monovalent group; in particular, R3 is chosen from a hydrogen atom or a linear or branched saturated CI-Clo monovalent hydrocarbon group which may contain one or more heteroatoms such as O, S, N, said hydrocarbon group being optionally substituted by a hydroxy, amino and / or thio function. Preferably, the radical R3 may be a monovalent group chosen from H, CH2OH and (CH2) 2-OH, CH3. According to a particularly preferred embodiment, R3 is a methyl group.

According to a preferred embodiment, the linking groups are chosen from 2-ureidopyrimidone and 6-methyl, 2-ureidopyrimidone.

The linking groups, and especially the ureidopyrimidone junction groups, can be added directly or well formed in situ during the method of preparing the supramolecular polymer. The first and second modes of preparation described below respectively illustrate these two alternatives.

Unless otherwise specified, the term "junction group" in the present description refers to the group without its reactive function. The functionalized junction groups capable of reacting with the functionalized polyalkene polymer to give the supramolecular polymer according to the invention are preferably of formula (III) and preferably of formula (IV): ## STR2 ## L-NCO HH CH3 ~ NH O

Wherein L is a single bond or a linker as defined above; In particular L is a divalent (alkylene), saturated or unsaturated, or even aromatic, C1-C20 carbon group, linear, cyclic and / or branched, optionally containing 1 to 4 N and / or O heteroatoms, especially in the form of a substituent. NO2, and especially a phenylene group; 1,4-nitrophenyl; 1,2-ethylene; 1,6-hexylene; 1,4-butylene; 1,6- (2,4,4-trimethylhexylene); 1,4- (4-methylpentylene); 1,5- (5-méthylhexylène); 1,6- (6-méthylheptylène); 1,5- (2,2,5-trimethylhexylene); 1,7- (3,7-diméthyloctylène); -isophorone-; 4,4'-methylene biscyclohexylene; tolylene; 2-methyl-1,3-phenylene; 4-methyl-1,3-phenylene; 4,4-biphénylèneméthylène. Preferably, L is -isophorone-; - (CH2) 2-; - (CH2) 6-; -CH2CH (CH3) -CH2-C (CH3) 2-CH2-CH2; 4,4'-methylene biscyclohexylene; 2-methyl-1,3-phenylene; and better isophorone. R2 represents a single bond, a divalent group of C1-C6 alkylene type, or a monovalent group chosen from a hydrogen atom or a linear, branched and / or cyclic, C1-C30, saturated or saturated monovalent hydrocarbon group; no, optionally aromatic, may contain one or more heteroatoms such as O, S, N; Preferably, R2 may be a single bond or H, a C1-C30 alkyl group; a C4-C12 cycloalkyl group, a C4-C12 aryl group, a C4-C12 aryl group or a C1-C12 alkyl group; these groups being optionally substituted by an amino, thio and / or hydroxy function. Preferentially, R2 represents H, CH3, CH2OH, (CH2) 2-OH, C13H27, C7H15 or phenyl; or a single link. - R3 represents a hydrogen atom or a linear, branched and / or cyclic, saturated or unsaturated, optionally aromatic, C1-C30 hydrocarbon-based group which may contain one or more heteroatoms such as O, S, N. Preferably R3 may be a C4-C12 cycloalkyl group, a C1-C30 linear or branched alkyl group or a C4-C12 aryl group, optionally substituted with an amino, thio and / or hydroxy function; preferably, R'3 represents H, CH3, CH2OH, (CH2) 2-OH; and even better methyl.

In a preferred embodiment, the supramolecular polymer of the invention corresponds to the formula: ## STR5 ## in which NH 2 -NH-NH-NH-CXP-X'-C-NH-L "-NH II Wherein: - L 'and L "have, independently of each other, the meaning indicated above for L; X = X '= O and P has the meaning indicated above for the functionalized polyalkene polymer. Preferably, L 'and L "represent a divalent (alkylene), saturated or unsaturated, C 1 -C 20 linear, cyclic and / or branched carbon group, Preferably L' and L" are selected from C 1 -C 4 alkylene. C20, linear or branched; C 5 -C 20 (alkyl) cycloalkylene, alkylene-biscycloalkylene, C 6 -C 20 (alkyl) arylene. Preferably, L 'and L "represent a group -isophorone-; (CH2) 2-; - (CH2) 6-; -CH2CH (CH3) -CH2-C (CH3) 2 -CH2-CH2; Biscyclohexylene ethylene, 2-methyl-1,3-phenylene.

Preferably L 'and L "are the same, and L' and L" are preferably an isophorone group. Preferably, P represents a polyethylene, a polybutylene, a polybutadiene, a polyisoprene, a poly (1,3-pentadiene), a polyisobutylene, or a copolymer thereof, especially a poly (ethylene / butylene). In a particularly preferred embodiment, the supramolecular polymer according to the invention is of formula: ## STR1 ## Preferably, n is such that the number-average molecular weight (Mn) of said polymer is between 1000 and and 8000, in particular between 1200 and 5000, even between 1500 and 4500, and even better between 2000 and 4000.

Said polymer according to the invention may be prepared by the methods usually employed by those skilled in the art, in particular to form a urethane bond between the free OH functions of a polyalkene, and the isocyanate functional groups carried by the linking group. By way of illustration, a first general method of preparation consists in: - optionally ensuring that the polymer to be functionalized has no residual water, - heating said polymer comprising at least one reactive function, especially 2 reactive functions, in particularly OH, at a temperature ranging from 60 ° C to 140 ° C; the hydroxyl number of the polymer that can be used as a reference in order to measure the progress of the reaction; - Add, preferably directly, the junction group carrying the reactive functions, including isocyanate; optionally stirring the mixture, under a controlled atmosphere, at a temperature of the order of 90-130 ° C .; for 1 to 24 hours; - optionally follow by infrared spectroscopy, the disappearance of the characteristic band of isocyanates (between 2500 and 2800 cm-1) so as to stop the reaction to the total disappearance of the peak, then allow the final product to return to ambient temperature.

The reaction can also be followed by assays of the hydroxyl functions; it is also possible to add ethanol to ensure the total disappearance of residual isocyanate functions. The reaction can be carried out in the presence of a solvent, especially methyltetrahydrofuran, tetrahydrofuran, toluene, propylene carbonate or butyl acetate. It is also possible to add a conventional catalyst for urethane bond formation. By way of example, mention may be made of dibutyl tin dilaurate. The polymer may ultimately be washed and dried, or even purified, according to the general knowledge of the skilled person.

According to the 2nd "method of preparation, the reaction may comprise the following steps: (i) functionalization of the polymer, preferably dried beforehand, with a diisocyanate according to the reaction scheme: OH-polymer-OH (1 eq.) + NCO- X-NCO (1 eq.) -> OCN-X-NH- (0) CO-polymer-30 OC (O) -NH-X-NCO The diisocyanate may be optionally in excess of the polymer. This first step can be followed by a stirring period, under a controlled atmosphere for 1 to 24 hours, and the mixture can be optionally heated. The state of progress of this first step can be followed by an assay of the hydroxyl functions and then (ii) reaction of the prepolymer obtained above with 6-methylisocytosine of formula: Me

NOT

This second step may optionally be carried out in the presence of a co-solvent such as toluene, butyl acetate or propylene carbonate. The reaction mixture can be heated between 80 ° C and 140 ° C for a time varying between 1 to 24 hours. The presence of a catalyst, especially dibutyltin dilaurate, may favor the obtaining of the desired final product. The reaction can be followed by infrared spectroscopy, following the disappearance of the peak characteristic of the isocyanate between 2200 and 2300 cm-1. At the end of the reaction, ethanol may be added to the reaction medium in order to neutralize any residual isocyanate functional groups. The reaction mixture may be optionally filtered. The polymer can also be stripped directly into a cosmetic solvent.

Said polymer based on polyalkene, alone or as a mixture, may be present in the compositions according to the invention in an amount which may be between 1 and 99% by weight, preferably between 1.5 and 80% by weight, in particular between 2 and 60% by weight, even between 2.5 and 40% by weight, and better still between 3 and 30% by weight, preferably 3.5 to 25% by weight, relative to the weight of the final cosmetic composition.

The composition also comprises 4-carboxy-2-pyrrolidinone derivatives, which have the following general formula (I '), and / or one of its salts and / or isomers and / or solvates: O R'3 R'2 NO in which: R '1 denotes a hydrogen atom or a linear C 1 -C 20 alkyl radical or C 3 -C 20 radical; R '2 denotes a linear C 1 -C 20 or branched C 3 -C 20 alkyl radical which may contain a C 5 -C 6 ring; a C5-C6 cycloalkyl radical optionally substituted by one or two methyl radicals; the phenyl radical, the benzyl radical or the phenethyl radical; R'3 and R'4 denote, independently of one another, a hydrogen atom, a linear C 1 -C 12 or branched C 1 -C 12 alkyl radical, it being understood that when R'l = H, the compounds may be in their free acid form or in the form of their cosmetically acceptable salts. In the formula (II) among the alkyl groups, mention may especially be made of methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, noctyl, 2-ethylhexyl, dodecyl, hexadecyl or cyclohexyl groups. methylcyclohexyl.

The salts of the compounds described in the present invention include the conventional non-toxic salts of said compounds such as those formed from organic or inorganic acids or bases, cosmetically acceptable. There may be mentioned ammonium salts, alkanolamine salts such as triethanolamine, aminopropanediol, alkali metal or alkaline earth metal salts, such as sodium, potassium, magnesium and calcium.

The preferred compounds are those of formula (I ') in which R' 3 and R '4 are hy-drogenous. Preferably, R '1 denotes a hydrogen atom or a linear C 1 -C 18 or branched C 3 -C 18 alkyl radical; and better still, a C2-C18 or branched C3-C10 linear alkyl radical. Preferably, R '2 denotes a linear C 2 -C 18 or branched C 3 -C 18 alkyl radical; and more preferably a linear C3-C16 or branched C3-C12 alkyl radical; or a cyclohexyl, phenyl, benzyl or phenethyl radical; and still more preferably a linear or branched C4-C10 alkyl radical; and most preferably butyl or 2-ethylhexyl.

Among the compounds of formula (I '), the following products (a) to (bx) will be used more particularly: (a) RN = 59857-86-2 O (f) RN = 59857-84-0 OO ( 1) G) RN = 100453-61-0 RN = 59857-87-3 O0 (e) RN = 102943-44-2000O RN = 10080-92-9000O (c) O (d) RN = 100911-29 -3 R = 428518-32-5 OR ~ y y j j 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 (9) RN = 428518-33-6 RN = 856637-16-6 RN = 1 01 572-83-2 OO (p) RN = 59857-85-1 OO (q) (r) (s) RN = 873969-57-4 O (t) O ( u) O (W) RN = 593253-22-6 (z) (Y) O (aa) RN = 101572-84-3 RN = 102180-23-4 RN = 102444-77-9 O (ak) (ad) ) (ae) RN = 147452-59-3 RN = 100878-04-4 OO \ \ O / N- / N ~ O RN = 856636-64-1 RN = 100252-83-3 RN = 106783-22-6 RN = 66397-80-65 OO (ap) RN = 100718-54-5 (aq) RN = 64320-92-9 OO x N

O (at) (as) RN = 91957-98-1 RN = 1 0 1 1 05-62-8 (av) OH OH OH (ay) (az) (ba) RN = 43094-86-6 RN = 52743-73-4 RN = 208118-23-4 RN = 299920-47-15 O (bb) (bd) RN = 157687-77-9 RN = 944648-73-1 OH RN = 696647-92-4 OH N (bd) RN = 845546-13-6 OH RN = 116167-27-2 RN = 6304-56-9 RN = 944511-54-0 OH (bj) RN = 1211449-66-9 RN = 10054-19 The counterions indicated may be replaced by any cosmetically acceptable cationic counterion, organic or inorganic, preferably chosen from alkaline or alkaline earth mineral cations, such as Na, Mg, K and Ca, and organic cations such as ammonium NR4 +, with R, same or different, representing H or a (hydroxy) C1-C6 alkyl.

Even more preferred compounds are the compounds of formulas (1), (n), (o), (ac), (am), (at), (a), (av), (ba), (bg), (bl), (bm), (bp), (br), (bw) and (bx).

The compounds of formula (I ') can be obtained according to the syntheses described in the following articles: J. Org. Chem., 26, pp. 1519-24 (1961); Tetrahedron Asymmetric, 12 (23), pages 3241-9 (2001); J. Industrial & Engineering Chem., 47, pp. 1572-8 (1955); J. Am. Chem. Soc., 60, pp. 402-6 (1938); and in patents EP0069512, US2811496, US2826588, US3136620, FR2290199 and FR2696744.

The compounds of formula (I ') are preferably present, alone or as a mixture, in the cosmetic compositions according to the invention in an amount of 0.5 to 400/0 by weight, better still 1 to 300/0 by weight, or 2 to 250/0 by weight, and preferably 3 to 200/0 by weight, relative to the total weight of the composition.

The cosmetic composition according to the invention may furthermore comprise, according to the application envisaged, a cosmetically acceptable medium, that is to say compatible with keratin materials such as the skin of the face or the body, the eyelashes, the eyebrows. , lips and nails.

The cosmetic composition may advantageously comprise a liquid fatty phase which may comprise at least one compound chosen from oils and / or solvents of mineral, animal, vegetable or synthetic origin, carbonaceous, hydrocarbon, fluorinated and / or silicone, volatile or non-volatile. , alone or in mixture as long as they form a homogeneous and stable mixture and are compatible with the intended use. For the purposes of the invention, the term "volatile" is intended to mean any compound capable of evaporating on contact with keratin materials, or the lips, in less than one hour at ambient temperature (25 ° C.) and atmospheric pressure ( 1 atm). In particular, this volatile compound has a non-zero vapor pressure, at ambient temperature and atmospheric pressure, in particular ranging from 0.13 Pa to 40 000 Pa (10-3 to 300 mmHg). By contrast, the term "non-volatile" means a compound remaining on the keratin materials or the lips at room temperature and atmospheric pressure, at least one hour and having in particular a vapor pressure of less than 10 -3 mmHg (0, 13 Pa).

The composition may thus comprise at least one oil and / or a solvent chosen from, alone or as a mixture:

1 / esters of monocarboxylic acids with monoalcohols and polyalcohols; advantageously, said ester is a C 12 -C 15 alkyl benzoate or has the following formula: R "1-COO-R" 2 in which: R "1 represents a linear or branched alkyl radical of 1 to 40 carbon atoms, preferably from 7 to 19 carbon atoms, optionally comprising one or more ethylenic double bonds, optionally substituted and whose hydrocarbon chain may be interrupted by one or more heteroatoms chosen from N and O and / or one or more carbonyl functions, and R "2 represents a linear or branched alkyl radical of 1 to 40 carbon atoms, preferably of 3 to 30 carbon atoms and better still of 3 to 20 carbon atoms, optionally comprising one or more ethylenic double bonds, optionally substituted and the The hydrocarbon chain may be interrupted by one or more heteroatoms selected from N and O and / or one or more carbonyl functions.

By "optionally substituted" is meant that R "1 and / or R" 2 may carry one or more substituents selected, for example, from groups comprising one or more heteroatoms selected from O and / or N, such as amino, amine , alkoxy, hydroxyl. Examples of R "1 groups are those derived from preferably higher fatty acids selected from the group consisting of acetic, propionic, butyric, caproic, caprylic, pelargonic, capric, undecanoic, lauric, myristic, palmitic, stearic, isostearic, arachidic. behenic, oleic, linolenic, linoleic, oleostearic, arachidonic, erucic, and mixtures thereof Preferably R "1 is an unsubstituted branched alkyl group of 4 to 14 carbon atoms, preferably 8 to 10 carbon atoms and R "2 is an unsubstituted branched alkyl group of 5 to 15 carbon atoms, preferably 9 to 11 carbon atoms.

In particular, mention may be made, preferably, of C8-C48 esters, optionally incorporating in their hydrocarbon chain one or more heteroatoms of N and O and / or one or more carbonyl functions; and more particularly purcellin oil (cetostearyl octanoate), isononyl isononanoate, isopropyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, octyl-2 stearate -dodecyl, octyl-2-dodecyl erucate, isostearyl isostearate, C12-C15 alcohol benzoate, hexyl laurate, diisopropyl adipate; and the heptanoates, octanoates, decanoates or ricinoleates of alcohols or polyalcohols, for example of fatty alcohols such as propylene glycol dioctanoate, as well as isopropyl N-lauroyl sarcosinate (in particular Eldew®-205SL from Ajinomoto); hydroxylated esters such as isostearyl lactate, diisostearyl malate; and pentaerythritol esters; branched C8-C16 esters, especially isohexyl neopentanoate.

2 / hydrocarbon vegetable oils with a high triglyceride content consisting of esters of fatty acids and of glycerol, the fatty acids of which may have chain lengths varying from C4 to C24, the latter may be linear or branched, saturated or unsaturated; these oils include wheat germ, maize, sunflower, shea, castor oil, sweet almond, macadamia, apricot, soya, rapeseed, cotton, alfalfa, poppy, pumpkin, sesame, squash, avocado, hazelnut, grape seed or black currant, evening primrose, millet, barley, quinoa, olive, rye, safflower, of bancoulier, passionflower, muscat rose, jojoba, palm, calophyllum; or the triglycerides of caprylic / capric acids such as those sold by the company Stearinerie Dubois or those sold under the names "Miglyol 810®", "812 °" and "818 °" by the company Dynamit Nobel.

3 / alcohols, and especially monohydric alcohols, C6-C32, especially C12-C26, such as oleic alcohol, linoleic alcohol, linolenic alcohol, isostearyl alcohol, 2-hexyldecanol, 2 -butyloctanol, 2-undecylpentadecanol and octyldodecanol;

4 / linear or branched hydrocarbon oils, volatile or not, of synthetic or mineral origin, which may be chosen from hydrocarbon-based oils having from 5 to 100 carbon atoms, and in particular petroleum jelly, polydecenes, hydrogenated polyisobutenes such as Parleam, squalane, perhydrosqualene and their mixtures. It is more particularly possible to mention linear, branched and / or cyclic C5-C48 alkanes, and preferably branched C8-C16 alkanes such as C8-C16 isoalkanes of petroleum origin (also called isoparaffins); especially decane, heptane, dodecane, cyclohexane; as well as isododecane, isodecane, isohexadecane.

5 / silicone oils, volatile or non-volatile; Volatile silicone oils that may be mentioned include volatile linear or cyclic silicone oils, in particular those having a viscosity of less than 8 centistokes, and especially having from 2 to 10 silicon atoms, these silicones possibly comprising alkyl or alkoxy groups having 1 to 22 carbon atoms; and in particular octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane, methylhexyldimethylsiloxane and mixtures thereof. The non-volatile silicone oils that may be used according to the invention may be polydimethylsiloxanes (PDMSs), polydimethylsiloxanes comprising alkyl or alkoxy groups, during and / or at the end of the silicone chain, groups each having from 2 to 24 carbon atoms, and phenyl silicones such as phenyltrimethicones, phenyldimethicones, phenyltrimethylsiloxydiphenylsiloxanes, diphenyldimethicones, diphenylmethyldiphenyltrisiloxanes, 2-phenylethyl trimethylsiloxysilicates.

6 / C6 to C40 ethers, especially C10-C40; propylene glycol ethers which are liquid at room temperature, such as propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate or dipropylene glycol mono-butyl ether; 7 / C -C -C fatty acids, such as oleic acid, linoleic acid, linolenic acid and mixtures thereof. 8 / ketones that are liquid at room temperature (25 ° C.), such as methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, isophorone, cyclohexanone or acetone; 9 / aldehydes that are liquid at room temperature, such as benzaldehyde or acetaldehyde; 10 / short-chain esters (having from 3 to 8 carbon atoms in total) such as ethyl acetate, methyl acetate, propyl acetate, n-butyl acetate, isopentyl acetate; 11 / ethers liquid at 25 ° C such as diethyl ether, dimethyl ether or dichlorodiethyl ether.

The composition according to the invention may also comprise at least one wax of vegetable, animal, mineral, synthetic or even silicone origin. In particular, hydrocarbon waxes such as beeswax can be mentioned alone or as a mixture; Carnauba wax, Candellila wax, Ouricoury wax, Japan wax, cork fiber wax or sugar cane wax; paraffin waxes of lignite; microcrystalline waxes; lanolin wax; the wax of Montan; ozokerites; polyethylene waxes; waxes obtained by Fischer-Tropsch synthesis; hydrogenated oils, fatty esters and concrete glycerides at 25 ° C. It is also possible to use silicone waxes, among which mention may be made of alkyls, alkoxys and / or polymethylsiloxane esters.

The composition may also comprise, for example in a hydrophilic phase, water and / or one or more hydrophilic organic solvents such as alcohols and especially linear or branched C1-C6 monoalcohols, such as ethanol or tert-butanol. n-butanol, isopropanol or n-propanol, as well as polyols such as glycerol, diglycerine, propylene glycol, sorbitol, pentylene glycol, or polyethylene glycols, or even glycol ethers. especially C2 and C2-C4 aldehydes hydrophilic.

The composition according to the invention may also comprise one or more dyestuffs which may be chosen from pigments, fillers, nacres and flakes, and / or fat-soluble or water-soluble dyes. The pigments may be white or colored, inorganic and / or organic, interferential or not. Among the inorganic pigments, mention may be made of titanium dioxide, optionally surface-treated, zirconium or cerium oxides, as well as iron or chromium oxides, manganese violet, ultramarine blue, hydrate of chrome and ferric blue. Among the organic pigments, mention may be made of carbon black, D & C type pigments, and lacquers based on cochineal carmine, barium, strontium, calcium, aluminum. The pearlescent pigments may be chosen from white pearlescent pigments such as titanium-coated mica or bismuth oxychloride, colored pearlescent pigments such as titanium mica with iron oxides, titanium mica with, in particular, blue. ferric or chromium oxide, titanium mica with an organic pigment of the aforementioned type as well as pearlescent pigments based on bismuth oxychloride. The fillers can be mineral or organic, lamellar or spherical. Mention may be made of talc, mica, silica, kaolin, powders of Nylon® and polyethylene, poly-R-alanine and polyethylene, Teflon®, lauroyl-lysine, starch, boron nitride, tetrafluoroethylene polymer powders, hollow microspheres such as Expancel® (Nobel Industry), polytrap® (Dow Corning) and silicone resin microbeads, precipitated calcium carbonate, carbonate and the like. magnesium hydrocarbonate, hydroxyapatite, hollow silica microspheres, glass or ceramic microcapsules, metal soaps derived from organic carboxylic acids having from 8 to 22 carbon atoms, preferably from 12 to 18 carbon atoms for example, zinc, magnesium or lithium stearate, zinc laurate, magnesium myristate. Liposoluble dyes are for example Sudan Red, DC Red 17, DC Green 6, 6-carotene, soybean oil, Sudan Brown, DC Yellow, 11, DC Violet 2, Orange DC 5 , yellow quinoline. The water-soluble dyes are, for example, beet juice, methylene blue.

The composition may further include other ingredients commonly used in cosmetic compositions. Such ingredients may be chosen from antioxidants, perfumes, essential oils, preservatives, cosmetic active ingredients, moisturizers, vitamins, ceramides, sunscreens, surfactants, emulsifiers, thickeners, gelling agents, spreading agents, wetting agents, dispersing agents, defoamers, neutralizers, stabilizers, polymers, and mixtures thereof. Of course, those skilled in the art will take care to choose these optional additional ingredients and / or their quantity, such that the advantageous properties of the composition according to the invention are not, or not substantially impaired by the addition envisaged.

The compositions according to the invention may be in any acceptable and customary form for a cosmetic composition. They can therefore be in the form of a suspension, a dispersion including oil in water with vesicles; an organic or oily solution optionally thickened or even gelled; an oil-in-water, water-in-oil, or multiple emulsion; a gel or a mousse; an oily or emulsified gel; a dispersion of vesicles, in particular lipids; a biphase or multiphase lotion; a spray; a lotion, a cream, an ointment, a soft paste, an ointment, a solid cast or molded and especially stick or cup, or compacted solid. Those skilled in the art may choose the appropriate dosage form, as well as its method of preparation, on the basis of its general knowledge, taking into account, on the one hand, the nature of the constituents used, in particular their solubility in the support. and on the other hand the application envisaged for the composition.

The compositions according to the invention can be used for the care or makeup of keratin materials such as the hair, the skin, the eyelashes, the eyebrows, the nails, the lips, the scalp and more particularly for the makeup of the lips, nails, eyelashes and / or face. They can therefore be in the form of a care product and / or makeup of the skin of the body or face, lips, eyelashes, eyebrows, hair, leather hair or nails; a suntan or self-tanning product; a hair product including coloring, conditioning, hygiene and / or hair care. They are advantageously in the form of makeup composition, including mascara, lipstick, lip gloss, lip balm, blush, eyeshadow, foundation, tattoo product, mascara, eyeliner, nail polish; they may also be in the form of an antiperspirant, an artificial tanning product for the skin, a hair coloring product, or a hair care product.

The invention also relates to a process for the cosmetic treatment of keratin materials, in particular the skin of the body or of the face, the lips, the nails, the eyebrows, the hair, the scalp and / or the eyelashes, comprising the application on said materials of a cosmetic composition as defined above. This process according to the invention makes it possible in particular to make up said keratin materials, in particular the lips, the face, the eyelids and / or the cheeks, by application of a composition of lipstick, eyeshadow or cheeks, or foundation, according to the invention.

The invention is illustrated in more detail in the following exemplary embodiments.

EXAMPLE 1 Synthesis of a Polyalkene-Based Polymer 100 g of dihydroxy-hydrogenated 1,2-polybutadiene polymer (G13000 from Nisso) are dried at 80 ° C. under reduced pressure overnight. This polymer is dissolved in 400 ml of anhydrous toluene. 25 μl of catalyst (dibutyltin dilaurate) are added and the mixture is heated at 80 ° C. with stirring until a homogeneous solution is obtained. 15 g of isocyanate functionalized molecule of following structure are added: ~ N ~ H O ~ NN NCO O

1 H H in solution in 300 ml of anhydrous toluene under a controlled atmosphere at 40 ° C. The reaction mixture is heated to 100 ° C and stirred at this temperature for 4 hours. The reaction is monitored by infrared spectroscopy, followed by the total disappearance of the characteristic isocyanate peak at 2260 cm -1. At the end of the reaction, 100 ml of ethanol are added to remove any residual isocyanate, and then the mixture is filtered after addition of isododecane to make the solution less viscous. The polymer solution is then directly stripped with isododecane.

A solution of the final polymer in isododecane is obtained at 21% solids; the polymer is characterized by GPC (Mn = 6400 and polydispersity index = 1.85) and 1H NMR (spectrum according to what is expected). EXAMPLE 2 Synthesis of a Polyalkene-based Polymer 106.1 g of dihydroxy-hydrogenated 1,2-polybutadiene polymer (Nisso G12000) are heated in the presence of 22 mg of catalyst (dibutyltin dilaurate) at 80 ° C. under reduced pressure for 2 hours. The temperature of the mixture was lowered to 20 ° C., under argon, followed by the addition of 10 ml of isododecane and 19.3 g of isophorone diisocyanate (IPDI). The mixture is stirred for 16 hours at 20 ° C under a controlled atmosphere and is then heated to 120 ° C followed by the addition of 25 ml of propylene carbonate. 12 g of 6-methylisocytosine are added, resulting in a homogeneous white suspension. This suspension is heated to 140 ° C. and is stirred at this temperature for 6 hours. The reaction is monitored by infrared spectroscopy until the characteristic peak of the isocyanates (2250 cm -1) has completely disappeared. The mixture is then lowered to 30 ° C., and 400 ml of heptane, 200 ml of THF and 50 ml of ethanol are added thereto before filtration on cetylite. The mixture is then stripped with isododecane. Finally, a solution of the polymer in isododecane at 20% solids is obtained; the polymer is characterized by GPC (Mn = 7000 and polydispersity index = 2.05). Example 3 Synthesis of a Polyalkene-Based Polymer 99 g of dihydroxy-hydrogenated 1,2-polybutadiene polymer (G13000 from Nisso) are heated in the presence of 22 mg of catalyst (dibutyltin dilaurate) at 80 ° C., under pressure reduced, for 2 hours. The temperature of the mixture was reduced to 20 ° C., under argon, followed by the addition of 30 ml of isododecane and 11 g of isophorone diisocyanate (IPDI). The mixture is stirred for 16 hours at 20 ° C under a controlled atmosphere and is then heated to 120 ° C followed by the addition of 25 ml of propylene carbonate. 8.1 g of 6-methylisocytosine is added, resulting in a homogeneous white suspension. This suspension is heated to 140 ° C. and is stirred at this temperature for 6 hours. The reaction is monitored by infrared spectroscopy until the characteristic peak of the isocyanates (2250 cm -1) has completely disappeared. The mixture is then lowered to 30 ° C., and 1 liter of heptane is added thereto, before filtration on celite. The mixture is then stripped with isododecane. In the end, a solution of the polymer in isododecane at 200% solids content is obtained; the polymer is characterized by GPC (Mn = 4200 and polydispersity index = 2.34).

EXAMPLE 4 Synthesis of a Polyalkene-based Polymer 89 g of dihydroxy-hydrogenated 1,2-polybutadiene polymer (G13000 from Nisso) are heated in the presence of 22 mg of catalyst (dibutyltin dilaurate) at 80 ° C. under pressure reduced, for 2 hours. The temperature of the mixture was lowered to 20 ° C., under argon, followed by the addition of 60 ml of isododecane and 11.6 g of 4,4'-dicyclohexylmethane diisocyanate. The mixture is stirred for 16 hours at 20 ° C, under a controlled atmosphere, and is then heated to 120 ° C, followed by the addition of 40 ml of propylene carbonate. 6.64 g of 6-methylisocytosine is added, resulting in a homogeneous white suspension. This suspension is heated to 140 ° C and is stirred at this temperature for 8 hours. The reaction is monitored by infrared spectroscopy until the characteristic peak of the isocyanates (2250 cm -1) has completely disappeared. The mixture is then lowered to 30 ° C., and 250 ml of isododecane and 500 ml of heptane are added thereto, before filtration on celite. The mixture is then stripped with isododecane.

In the end, a solution of the polymer in isododecane at 220% solids is obtained; the polymer is characterized by GPC (Mn = 10700 and polydispersity index = 2.26).

EXAMPLE 5 Synthesis of a Polyalkene-Based Polymer 143.1 g of dihydroxy-hydrogenated 1,2-polybutadiene polymer (Nisso G12000) are heated in the presence of 33 mg of catalyst (dibutyltin dilaurate) at 80.degree. reduced pressure for 2 hours. The temperature of the mixture was lowered to 20 ° C., under argon, followed by the addition of 85 ml of isododecane and 30.8 g of 4,4'-dicyclohexylmethane diisocyanate. The mixture is stirred for 16 hours at 20 ° C, under a controlled atmosphere, then is heated to 120 ° C, followed by the addition of 70 ml of propylene carbonate. 22.6 g of 6-methylisocytosine are added, resulting in a homogeneous white suspension. This suspension is heated to 140 ° C and is stirred at this temperature for 8 hours. The reaction is followed by infrared spectroscopy until the characteristic peak of isocyanates (2250 cm -1) has completely disappeared. The mixture is then lowered to 20 ° C., and 700 ml of isododecane and 500 ml of heptane are added thereto before filtration over celite. The mixture is then stripped with isododecane. In the end, a solution of the polymer in isododecane at 200% solids content is obtained; the polymer is characterized by GPC (Mn = 8400 and polydispersity index = 2.00). EXAMPLE 6 The use of a polymer according to the invention, the polymer prepared in Example 2, was compared in a solvent according to the invention and in a conventional solvent, isododecane. The solvent according to the invention tested is the following: 0 (av) Implementation: the polymer to be solubilized is weighed; it is diluted to 20% or 40% of dry ex-trait (ES) in the solvent tested; heated at 80 ° C with stirring for 1 hour, waiting for cooling and note the appearance of the mixture.

The following results are obtained: Solvent Observations Polymer of Isododecane Very viscous mixture, at the limit of Example 2 at 20% of a turbid gel, at 25 ° C. ES Polymer of Isododecane Very high viscosity mixture; not Example 2 at 40% conveyable or manipulable at 25 ° C ES Solvent polymer according to the mixture forms a screw oil in Example 2 at 20% the invention slightly opaque at 25 ° C ES Polymer Solvent according to the mixture forms a highly viscous oil Example 2 to 40% the invention transparent and manipulable, ES at 25 ° C10

Claims (15)

REVENDICATIONS1. Cosmetic composition, comprising, in a cosmetically acceptable medium, (i) at least one polyalkene-based supramolecular polymer capable of being derived from the reaction of at least one polyalkene polymer functionalized with at least one reactive function, with at least one linking group functionalized with at least one reactive functional group capable of reacting with the reactive functional group (s) carried by the functionalized polyalkene polymer, said joining group being capable of forming at least 3 H (hydrogen) bonds, preferably at least 4 H bonds, preferably 4 H bonds; and (ii) at least one compound of formula (I '), alone or in admixture, and / or one of its salts and / or isomers and / or solvates: O R'3O-R'1 R'2 NO in which R1 represents a hydrogen atom or a C1-C20 linear or C3-C20 branched alkyl radical; R '2 denotes a linear C 1 -C 20 or branched C 3 -C 20 alkyl radical which may contain a C 5 -C 6 ring; a C5-C6 cycloalkyl radical optionally substituted by one or two methyl radicals; the phenyl radical, the benzyl radical or the phenethyl radical; R'3 and R'4 denote, independently of one another, a hydrogen atom or a linear C 1 -C 12 or branched C 3 -C 12 alkyl radical, it being understood that when R'1 = H, the compounds may be in their free acid form or in the form of their cosmetically acceptable salts. 2. Composition according to claim 1, in which the functionalized polyalkene polymer is of formula HX-P-X'H in which: XH and X'H are reactive functions, with X and X ', which are identical or different, chosen from O, S, NH, or NRa, Ra being a C1-C6 alkyl group; preferably, X and / or X 'denote O; preferentially, X and X 'denote O; P represents a homo- or a copolymer that can be obtained by polymerization of one or more linear or cyclic and / or branched monoenes or polyunsaturated alkenes of C2-C10, preferably of C2-C4, preferentially mono-unsaturated, linear or branched, C2-C4. 3. Composition according to claim 2, in which P represents a polymer chosen from polyethylene, polybutylene, polybutadiene, polyisoprene, poly (1,3-pentadiene), polyisobutylene, and their copolymers, and in particular poly ( ethylene / butylene). 4. Composition according to one of the preceding claims, wherein the functionalized polyalkene polymer has a number-average molecular weight (Mn) of between 1000 and 8000, especially between 1200 and 5000, even between 1500 and 4500, and even better between 2000. and 4000. 5. Composition according to one of the preceding claims, wherein the linking group capable of forming at least 3 H bonds is of formula (1), it being understood that all the tautomeric forms are included: ## STR2 ## I) in which: RI represents a single bond, a hydrogen atom, a halogen atom or a linear, branched and / or cyclic, C1-C30, saturated or unsaturated, optionally aromatic, carbonaceous group which may contain one or more heteroatoms such as O, S, N; R2 represents a single bond, a divalent group of C1-C6 alkylene type, or a monovalent group chosen from a hydrogen atom or a linear, branched and / or cyclic, C1-C30, saturated or saturated monovalent hydrocarbon group; no, optionally aromatic, may contain one or more heteroatoms such as O, S, N; - R3 represents a hydrogen atom or a linear, branched and / or cyclic, saturated or unsaturated, optionally aromatic, C1-C30 hydrocarbon-based group which may contain one or more heteroatoms such as O, S, N; it being understood that at least one, in particular one or two, groups R1 and R2 is a single bond, constituting the attachment point of the linking group capable of forming at least 3 H bonds on the remainder of the graft. 6. Composition according to one of the preceding claims, wherein the polyalkene-based supramolecular polymer has the formula: ## STR5 ## In which: L 'and L "represent, independently of one another, a saturated or unsaturated C 1 -C 20 diva-slow carbon (alkylene) group, linear, cyclic and or branched; preferably, L 'and L "are chosen from linear or branched C 1 -C 20 alkylene, C 5 -C 20 (alkyl) cycloalkylene, alkylene-biscycloalkylene, C 6 -C 20 (alkyl) arylene; and L "represent an -isophorone- group; - (CH2) 2-; - (CH2) 6-; -CH2CH (CH3) -CH2-C (CH3) 2-CH2-CH2; 4,4'-methylene biscyclohexylene; 2-methyl-1,3-phenylene. X = X '= O and P represents a polyethylene, a polybutylene, a polybutadiene, a polyisoprene, a poly (1,3-pentadiene), a polyisobutylene, or a copolymer thereof, especially a poly (ethylene / butylene) ). 7. Composition according to one of the preceding claims, wherein the polyalkene-based supramolecular polymer has the formula: ## STR1 ## and n is such that the number-average molecular weight (Mn) of said polymer is comprised between 1000 and 8000, especially between 1200 and 5000, even between 1500 and 4500, and even better between 2000 and 4000. 8. Composition according to one of the preceding claims, wherein the supramolecular polymer based on polyalkene, alone or in mixture, is present in an amount of between 1 and 99% by weight, preferably between 1.5 and 80% by weight. weight, especially between 2 and 60% by weight, even between 2.5 and 40% by weight, and better still between 3 and 30% by weight, preferably 3.5 to 25% by weight, relative to the weight of the cosmetic composition . 9. Composition according to one of the preceding claims, wherein, in the compound of formula (I '), there is: - R'3 and R'4 are hydrogen, and / or - R'1 denotes an atom of hydrogen or a linear C 1 -C 18 or branched C 3 -C 18 alkyl radical; and better still a C2-C18 or branched C3-C10 linear alkyl radical, and / or - R'2 denotes a linear C2-C18 or branched C3-C18 alkyl radical; and more preferably a linear C3-C16 or branched C3-C12 alkyl radical; or a cyclohexyl, phenyl, benzyl or phenethyl radical; and still more preferably a linear or branched C4-C10 alkyl radical; and most preferably butyl or 2-ethylhexyl. 10. Composition according to one of the preceding claims, wherein the compound of formula (I ') is selected from the following products (a) to (bx): OOO (c) OO (b) RN = 10080-92-9 OO (f) RN = 59857-84-0 O (a) RN = 59857-86-2 O (e) RN = 102943-44-2 OO (1) G) RN = 100453-61-0 RN = 59857-87 -3 O (d) RN = 100911-29-3 R = 428518-32-5 O (h) Y Y RN RN = 428518-34-7 O (1) RN = 192717-78-5 RN = 428518-33 R = 443304-01-6 OO RN = 856637-16-6 RN = 101572-83-2 OO (p) RN = 59857-85-1O (q) (r) (s) RN = 873969-57- O (t) O (u) O (W) RN = 593253-22-6 (Y) (z) (aa) (ad) (ae) O (ab) RN = 147452-59-3 RN = 100878- 04-4RN = 856636-64-1 (ag) RN = 100252-83-3 RN-1 06753-22-6 RN = 66397-80-6 RN RN = 101572-84-3 RN = 102180-23-4 RN = 102444-77-9 O (ap) RN = 100718-54-5 (aq) RN = 64320-92-9 0 x x NO (at) (as) RN = 91957-98-1 RN-1 01 1 ## STR2 ## b) RN = 696647-92-4 RN = 157687-77-9 RN = 944648-73-1 OH OH RN = 845546-13-6 OH RN = 116167-27-2 RN = 6304-56-9 RN = 944511 -54 to 0 OHOH (bj) RN = 1211449-66-9 RN = 10054-19-0 OH 11. Composition according to one of the preceding claims, wherein the compound of formula (I '), alone or as a mixture, is present in an amount of 0.5 to 400/0 by weight, better still from 1 to 300/0. by weight, or even 2 to 250/0 by weight, and preferably from 3 to 200/0 by weight, relative to the total weight of the composition. 12. Composition according to one of the preceding claims, in which the cosmetically acceptable medium comprises at least one ingredient chosen from oils and / or solvents of mineral, animal, plant or synthetic origin, carbonated, hydrocarbon-based, fluorinated and / or or silicone, volatile or non-volatile; waxes of vegetable, animal, mineral or synthetic origin, or even silicone; the water; hydrophilic organic solvents; dyestuffs; antioxidants, perfumes, essential oils, preservatives, cosmetic active agents, moisturizers, vitamins, ceramides, sunscreens, surfactants, emulsifiers, thickeners, gelling agents, spreading agents, wetting agents, dispersing agents, defoamers, neutralizers, stabilizers, polymers, and mixtures thereof. 13. Composition according to one of the preceding claims, being in the form of a care product and / or makeup of the skin of the body or face, lips, eyelashes, eyebrows, hair, leather hair or nails; a suntan or self-tanning product; a hair product including coloring, conditioning, hygiene and / or hair care. 14. Process for the cosmetic treatment of keratin materials, in particular the skin of the body or of the face, the lips, the nails, the eyebrows, the hair, the scalp and / or the eyelashes, comprising the application on the said materials of a cosmetic composition as defined in one of claims 1 to 13. 15. The method of claim 14, for the makeup of keratin materials, in particular lips, face, eyelids and / or cheeks, by application of a composition of lipstick, eyeshadow or cheeks, or foundation, as defined in one of claims 1 to 13.