A process for treating keratin fibers using a composition comprising at least two distinct specific fatty acids and at least one oligo / polyester

Abstract

The present invention relates to a process for treating keratin fibers using a composition comprising at least two distinct specific fatty acids and at least one oligo / polyester.

Description

Title of the invention: Process for treating keratin fibers using a composition comprising at least two distinct particular fatty acids and at least one oligo / polyester Technical field of the invention

[0001] The present invention relates to a method for treating keratin fibers using a composition comprising at least two distinct particular fatty acids and at least one oligo / polyester. Background to the invention

[0002] External atmospheric agents such as pollution and bad weather, as well as mechanical or chemical treatments such as brushing, combing, dyeing, bleaching, perming, straightening, repeated washing, damage and weaken the hair. The hair is thus damaged and can in the long run become dry, rough, brittle, dull, split and / or limp or even sensitive to humidity, making the hair unruly, often with frizz, and / or difficult to style in humid environments, particularly in very humid environments.

[0003] Thus, to overcome these drawbacks, it is usual to use hair care products which use compositions intended to condition the hair in a suitable manner by providing it with satisfactory cosmetic properties, in particular softness to the touch (the hair is no longer rough), good detangling properties making it easy to comb, and good discipline of the hair which thus has good shape.

[0004] These hair care products, often based on silicone raw materials, can however give a greasy and heavy appearance to the touch which is not always pleasant for the user. Furthermore, these hair care products have little or no effect on controlling the volume of keratin fibers and / or maintaining the hairstyle and / or disciplining the hair in a humid or even very humid environment.

[0005] Furthermore, the formulation of environmentally friendly cosmetic products, i.e. those whose design and development take environmental issues into account, is becoming a major concern in helping to meet global challenges. It is therefore essential to offer more sustainable compositions that will enable us to meet these environmental challenges, in particular by reducing the use of compounds of petrochemical origin.

[0006] Thus, there is a real need to develop a hair treatment process that can overcome these drawbacks and which is particularly capable of preserving or even improve the quality of the fiber, in particular softness, detangling, smoothing, discipline and / or shine, and to permanently limit the formation of frizz and / or the increase in volume of the hair in a humid environment in order to facilitate styling of the hair in a humid environment. Such a process should ideally not use silicone raw materials.

[0007] The applicant has surprisingly discovered that all or part of these objectives can be achieved by the method according to the present invention. Summary of the invention

[0008] According to a first aspect, the subject of the present invention is a process for treating keratin fibers comprising step i) of applying to the keratin fibers a composition (C) comprising: • at least two distinct compounds D chosen independently from the compounds of formula (I) below, their salts, their isomers, their solvates such as hydrates and their mixtures: Formula (I) in which: ■ R1 represents: - a hydrocarbon group, linear or branched, saturated or unsaturated, comprising from 6 to 26 carbon atoms, the hydrocarbon group being optionally substituted by one or more groups, identical or different, chosen from: hydroxyl (-OH), amino (-NH2), carboxyl (-COOH), (hetero)cyclic such as phenyl and / or optionally interrupted by one or more heteroatoms or groups chosen from -O-, -CO-, -NRa-, or combinations thereof such as -O-CO-, -(CO)-O-, -NRa-(CO)- or -(CO)-NRa-; or - a (hetero)cyclic group such as phenyl, optionally substituted by one or more groups, identical or different, chosen from: hydroxyl (-OH) or Rb -(CO)-; ■ Ra represents a hydrogen atom or a hydrocarbon group, linear or branched, saturated or unsaturated, comprising from 1 to 10 carbon atoms optionally substituted by one or more identical or different groups chosen from (-OH), amino (-NH2) or carboxyl (-COOH); ■ Rb represents a (C2-Cio)alkyl group; and • one or more compounds E chosen from oligoesters, polyesters and their mixtures.

[0009] According to a second aspect, the present invention relates to a composition (C) as defined above.

[0010] According to a third aspect, the subject of the present invention is the use of a composition (C) as defined above for the care of keratin fibers, preferably for providing the keratin fibers with softness to the touch and / or a smoothness to the touch and / or shine, more preferably for providing softness to the touch and / or a smoothness to the touch.

[0011] According to a fourth aspect, the present invention relates to the use of a com position (C) as defined previously to protect the keratin fibers from humidity, preferably to limit the formation of frizz and / or the increase in volume of the hair in a humid environment. Detailed description of the invention

[0012] For the purposes of the present invention, and unless otherwise indicated:

[0013] ■ by "keratin fibers" we mean fibers of human or animal origin such as than hair, body hair, eyelashes, eyebrows, wool, angora, cashmere or fur. According to the present invention, the keratin fibers are preferably human keratin fibers, more preferably hair.

[0014] ■ by "alkyl group" we mean a linear or branched, saturated hydrocarbon radical, comprising from 1 to 30 carbon atoms, preferably from 1 to 26 carbon atoms, more preferably from 1 to 22 carbon atoms, for example methyl, ethyl, n-propyl, iso-propyl, butyl, n-pentyl, n-hexyl, n-decyl, n-undecyl, n-dodecyl, n-tetradecyl, n-hexadecyl or eicosyl.

[0015] ■ by "(Cx-Cy) alkyl group" is meant an alkyl group comprising from x to y atoms of carbon.

[0016] ■ by "(hydroxy)(Cx-Cy)alkyl group" we mean a (Cx-Cy)alkyl group one of which at least one of the hydrogen atoms is optionally replaced by a hydroxy group (-OH). A "(hydroxy)(Cx-Cy)alkyl group" thus denotes a (Cx-Cy)alkyl group or a hydroxy(Cx-Cy)alkyl group, i.e. a (Cx-Cy)alkyl group in which at least one of the hydrogen atoms is replaced by a hydroxy group (-OH).

[0017] ■ by di(hydroxy)(Cx-Cy)alkylammonium salt, we mean an ammonium salt bearing two (hydroxy)(Cx-Cy)alkyl groups, said (hydroxy)(Cx-Cy)alkyl groups being identical or different.

[0018] ■ by tri(hydroxy)(Cx-Cy)alkylammonium salt, we mean an ammonium salt bearing three (hydroxy)(Cx-Cy)alkyl groups, said (hydroxy)(Cx-Cy)alkyl groups being identical or different.

[0019] ■ by tetra(hydroxy)(Cx-Cy)alkylammonium salt, we mean an ammonium salt bearing four (hydroxy)(Cx-Cy)alkyl groups, said (hydroxy)(Cx-Cy)alkyl groups being identical or different.

[0020] ■ by "(hetero)cyclic group" we mean a cyclic or heterocyclic group.

[0021] ■ by "cyclic group" we mean a carbocycle, mono or polycyclic, condensed or not, saturated or unsaturated, in particular aromatic, comprising from 6 to 22 carbon atoms, said cyclic group possibly being substituted by one or more identical or different groups, in particular chosen from: (Ci-C6)alkyl, (Ci-C6)alkoxy, (Ci -C6)(poly)hydroxyalkyl, hydroxyl (-OH) or carboxyl (-COOH).

[0022] ■ by "heterocyclic group" we mean a mono or polycyclic group, condensed or not, saturated or unsaturated, in particular aromatic, comprising from 5 to 22 links and containing from 1 to 3 heteroatoms chosen from the nitrogen, oxygen or sulfur atom, said heterocyclic group possibly being substituted by one or more groups, identical or different, in particular chosen from: (Ci-C6)alkyl, (Ci-C6)alkoxy, (Ci -C6)(poly)hydroxyalkyl, hydroxyl (-OH) or carboxyl (-COOH).

[0023] ■ by "unsaturated hydrocarbon group" is meant a hydrocarbon group comprising one or more ethylenic double bonds, conjugated or not.

[0024] ■ by "oligoester" we mean a hydrocarbon chain comprising from 2 to 10 units of identical or different esters (ester units also called ester monomers).

[0025] ■ by "polyester" we mean a hydrocarbon chain comprising more than 11 units of identical or different esters (ester units also called ester monomers).

[0026] ■ by "isomer" we mean an optical, geometric or tautomeric isomer.

[0027] The expressions "at least one" and "one or more" are synonymous and can be used interchangeably. Process for treating keratin fibers

[0028] According to a first aspect, the subject of the present invention is a method for treating keratin fibers as defined above.

[0029] The applicant has found, surprisingly, that the process according to the present invention makes it possible to preserve or even improve the quality of the fiber, in particular softness, detangling, smoothing and / or discipline and / or shine, and to limit the formation of frizz and / or the increase in volume of the hair in a humid environment, thus making it easier to style the hair in a humid environment. Distinct compounds D

[0030] Composition (C) comprises at least two distinct compounds D chosen independently from the compounds of formula (I) as defined above, their salts, their isomers, their solvates such as hydrates and their mixtures.

[0031] Preferably, the salts of the compounds of formula (I) are chosen from the monovalent salts of the compounds of formula (I).

[0032] More preferably, the salts of the compounds of formula (I) are chosen from alkali metal salts such as sodium or potassium, ammonium salts, tetra(Ci-Ci0)alkylammonium salts, di(Ci-Ci0)alkylammonium salts, tri(Ci-Cio)alkylammonium salts, and mixtures thereof, preferably chosen from alkali metal salts such as sodium or potassium, tetra(Ci-Ci0)alkylammonium salts, and mixtures thereof.

[0033] According to a preferred embodiment, R1 represents a linear or branched, saturated or unsaturated hydrocarbon group comprising from 6 to 26 carbon atoms, the hydrocarbon group being optionally substituted by one or more groups, identical or different, chosen from: hydroxyl (-OH), amino (-NH2), carboxyl (-COOH), (hetero)cyclic such as phenyl and / or optionally interrupted by one or more heteroatoms or groups chosen from -O-, -CO-, -NRa-, or combinations thereof such as -O-CO-, -(CO)-O-, -NRa-(CO)- or -(CO)-NRa-, preferably a linear or branched, saturated or unsaturated, unsubstituted hydrocarbon group comprising from 6 to 26 carbon atoms, more preferably a linear or branched, saturated or unsaturated, unsubstituted hydrocarbon group comprising from 6 to 20 carbon atoms.

[0034] According to one embodiment, composition (C) does not comprise salts of compounds of formula (I) as defined previously.

[0035] According to a preferred embodiment, at least one of the distinct compounds D, preferably all of the distinct compounds D are in non-salified form.

[0036] According to a preferred embodiment, at least two of the distinct compounds D are in non-salified form and the molar ratio of total quantity of one of the distinct compounds D in non-salified form / total quantity of another of the distinct compounds D in non-salified form in the composition (C) ranges from 0.25 to 4. In cases where the composition (C) comprises more than two distinct compounds D in non-salified form, it is sufficient for the molar ratio between two of these distinct compounds D to vary from 0.25 to 4, in order for this criterion to be met.

[0037] According to a more preferred embodiment, the composition (C) does not comprise more than two distinct compounds D, the two distinct compounds D being in non-salified form and the molar ratio of total quantity of one of the distinct compounds D in non-salified form / total quantity of the other distinct compound D in non-salified form in the composition (C) ranging from 0.25 to 4.

[0038] According to a particular embodiment, at least one of the distinct compounds D is in non-salified form and at least one of the distinct compounds D is in salified form and the molar ratio total quantity of one of the distinct compounds D in non-salified form / total quantity of one of the distinct compounds D in salified form in the com position (C) is greater than or equal to 1, preferably ranging from 1 to 100. In cases where the composition (C) comprises more than two distinct compounds D in non-salified form and / or more than two distinct compounds D in salified form, it is sufficient that the molar ratio total quantity of one of the distinct compounds D in non-salified form / total quantity of one of the distinct compounds D in salified form is greater than or equal to 1, preferably ranging from 1 to 100 so that this criterion is met.

[0039] According to a more particular embodiment, the composition (C) does not comprise more than two distinct compounds D, one of the distinct compounds D being in non-salified form and the other in salified form and the molar ratio of the total quantity of the distinct compound D in non-salified form / total quantity of the distinct compound D in salified form in the composition (C) being greater than or equal to 1, preferably ranging from 1 to 100.

[0040] Composition (C) preferably comprises no more than five distinct compounds D, more preferably no more than four distinct compounds D, even more preferably no more than three distinct compounds D, and better still no more than two distinct compounds D, chosen independently from the compounds of formula (I) as defined above, their salts, their isomers, their solvates such as hydrates and their mixtures.

[0041] According to a preferred embodiment, the distinct compounds D are chosen from the following compounds 1 to 39, their salts, their isomers, their solvates such as hydrates and their mixtures: Deicic acid Compound 1 Palmitic acid Compound 2 Oi Myristic acid Compound 3 OH ■O Boric Acids Compound 4 OH Isostearic acid Compound 5 -Q RC—RCHjCOOH with RCO- representing the acyfe groups derived from coconut oil Cccoyl Sarcasm HO. . ..0 H Laiæroyi Lysine Compound 7 Behenâqoe acid Compound 8 C'A <X“ ■•-•■• x XX .<■■'■■""""-x .'"'v XX .Xx X ■-' •" x ''ï' vx 'y / ' b 6 Aride o-octanoyl5-sa^cy^que Composé 9 X'X ,XX.; X'Xs X'X x"’X. ,XXx X"‘x .• - ^vX O H Aride hydroxystéanque Composé 10 «0, ...-O q X ..■•x .X', XX XV XV X, X ...-x ..-0 ' T T ÔH Acide 2-dtwiécasami^perrtarie^ Composé 11 O-H K C- æ " ^93 Actée 24tepSadéœnamK|0pe^nedim^^ Composé 12 Giyçeryî Stearate Citrate Compound 13 OH Gapryfoyi Glycine Compound 14 1-Vammomdécarï^ue acid Compound 15 Q Capric Arid Compound 16 Arid capjyftque Compound 17 Arid 1 O-hy draxy decanoïcüe OH Adde 104*ÿdroxy-2rdécénoœqup Compound 19 Adde 13-hydmxy stearic acid Compound 20 Adde 6-atrtnoœproic Compound 21 Laufëih-11 carboxylic acid Compound 22 O Acetamidocaproic acid Compound 23 Adde deurfêqug Compound 24 Arachidic Acid Compound 25 0 Arachidonic acid Compound 26 Adde 24ætfyfodandic Compound 27 Cerous acid Compound 28 4-Ethy ioda-2t4-dæïKH acid that Compound 29 Adde 4-éfr XH Q yioctaWjque >osé 30 Acids s QH '\X'' déarique sosé 31 OH .-•••x ..'X 0: X........" XX" Adde 1 ..X** 'x X ' xX X mléique Comj >osé 32. ' Acid in <v nnamique comf josé 33 ......... ,ww », acide < x 7 éranique 34 Heptanoic acid OH Y ise Compound 35 1 , Inolenic acid T ' £3 je Compound 36 Adde pergom O •X jue Compound 37 OH Adde phenylaceî ic Compound 3£ OH Rindétq acid KZ ( Xo d X Compound 39 chosen from compounds 1, 4, 16 or 17, their salts, their isomers, their solvates such as hydrates and their mixtures.

[0044] According to a preferred variant, the distinct compounds D are chosen from compounds 1 to 39, their isomers, their solvates such as hydrates and their mixtures, preferably from compounds 1 to 20, 22, 25, 26, 28, 31, 32, 36 or 39, their isomers, their solvates such as hydrates and their mixtures, more preferably from compounds 1, 4, 16 or 17, their isomers, their solvates such as hydrates and their mixtures.

[0045] When one or more of the distinct compounds D are in salified form, these are preferably chosen from the following compounds 1' to 11', their isomers, their solvates such as hydrates and their mixtures: with X+ representing a preferably monovalent cation, more preferably a monovalent cation derived from a salt chosen from alkali metal salts such as sodium or potassium, ammonium salts, tetra(hydroxy)(CrCio )alkylammonium salts, di(hydroxy)(Ci-Ci0)alkylammonium salts, tri(hydroxy)(Ci-Ci0)alkylammonium salts, and mixtures thereof, even more preferably a monovalent cation derived from a salt chosen from alkali metal salts such as sodium or potassium, tetra(hydroxy)(Ci-Ci0)alkylammonium salts, and mixtures thereof.

[0046] When one or more of the distinct compounds D are in salified form, these are more preferably chosen from compounds 1' to 11', their isomers, their solvates such as hydrates and their mixtures, with X+ representing a monovalent cation derived from a salt chosen from alkali metal salts such as sodium or potassium, ammonium salts, tetra(Ci-Ci0)alkylammonium salts, di(Ci-Ci0)alkylammonium salts, tri(Ci-Ci0)alkylammonium salts, and their mixtures, preferably chosen from alkali metal salts such as sodium or potassium, tetra(Ci-Ci0)alkylammonium salts, and their mixtures.

[0047] When one or more of the distinct compounds D are in salified form, these are even more preferably chosen from compounds 1' to 11', their isomers, their solvates such as hydrates and their mixtures, with X+ representing a Na+, K+, NH4+ or tetra(Ci-Cio)alkylammonium ion.

[0048] When one or more of the distinct compounds D are in salified form, these are most preferably chosen from the following compounds 1” to 13”, their isomers, their solvates such as hydrates and their mixtures:

[0049] According to a particularly preferred embodiment, when one or more of the distinct compounds D are in salified form, these are chosen from compounds 5”, 6”, their isomers, their solvates such as hydrates and their mixtures.

[0050] Preferably, the composition (C) comprises a total content of distinct compounds D of at least 0.01% by weight, preferably at least 0.05% by weight, more preferably ranging from 0.1% to 99.9% by weight, even more preferably ranging from 1% to 95% by weight relative to the total weight of the composition (C).

[0051] According to a preferred embodiment, the distinct compounds D are chosen from the following combinations of compounds: - the combination of caprylic acid and lauric acid, the molar ratio of total quantity of caprylic acid / total quantity of lauric acid in composition (C) preferably being equal to 3 / 1; - the combination of capric acid and lauric acid, the molar ratio of total quantity of capric acid / total quantity of lauric acid in composition (C) preferably being equal to 2 / 1; - the combination of lauric acid and oleic acid, the molar ratio of total quantity of lauric acid / total quantity of oleic acid in composition (C) preferably being from 0.25 to 0.7, more preferably equal to 1 / 3; - the combination of caprylic acid and capric acid, the molar ratio of total quantity of caprylic acid / total quantity of capric acid in composition (C) preferably being equal to 1 / 1; - the combination of capric acid and sodium laurate, the molar ratio of total quantity of capric acid / total quantity of sodium laurate in composition (C) preferably being equal to 4 / 1.

[0052] According to a more preferred embodiment, the distinct compounds D are chosen from the following combinations of compounds: - the combination of caprylic acid and lauric acid, the molar ratio of total quantity of caprylic acid / total quantity of lauric acid in composition (C) preferably being equal to 3 / 1; - the combination of capric acid and lauric acid, the molar ratio of total quantity of capric acid / total quantity of lauric acid in composition (C) preferably being equal to 2 / 1; - the combination of lauric acid and oleic acid, the molar ratio of total quantity of lauric acid / total quantity of oleic acid in composition (C) preferably being from 0.25 to 0.7, more preferably equal to 1 / 3; - the combination of caprylic acid and capric acid, the molar ratio of total quantity of caprylic acid / total quantity of capric acid in composition (C) preferably being equal to 1 / 1.

[0053] According to a most preferred embodiment, the composition (C) comprises the combination of lauric acid and oleic acid, the molar ratio of total amount of lauric acid / total amount of oleic acid in the composition (C) preferably being from 0.25 to 0.7, more preferably equal to 1 / 3.

[0054] When composition (C) comprises one of the combinations of two compounds described above, the total content of combination present in composition (C) is preferably at least 0.01% by weight, more preferably at least 0.05% by weight, even more preferably from 0.1% to 99.9% by weight, most preferably from 1% to 95% by weight relative to the total weight of composition (C). Compounds E

[0055] Composition (C) further comprises one or more compounds E chosen from oligoesters, polyesters and their mixtures.

[0056] The compound(s) E are preferably derived from: - the reaction of one or more polyols and one or more compounds chosen from carboxylic acids F comprising one or more carboxyl groups, carboxylic acid anhydrides and mixtures thereof; and / or - the polycondensation of one or more hydroxy acids; and / or - ring-opening polymerization of one or more lactones. Polyols

[0057] According to a particular embodiment, the compound(s) E are obtained from one or more polyols preferably comprising from 2 to 6 hydroxyl groups (-OH), in particular two or four hydroxyl groups.

[0058] According to a particular embodiment, the polyol(s) are organic compounds comprising a hydrocarbon chain, linear or branched, acyclic or (poly)cyclic, saturated or unsaturated, aromatic or not, comprising from 3 to 18 carbon atoms, in particular from 4 to 12 carbon atoms, or even from 5 to 10 carbon atoms; and from 2 to 6 hydroxyl groups, in particular from 3 to 6 hydroxyl groups, said hydrocarbon chain being optionally interrupted by one or more heteroatoms, in particular of oxygen, in particular possibly having ether functions.Examples of such polyols that may be mentioned, without this list being limiting, are: i) oses, in particular pentoses such as ribose, arabinose, xylose, lyxose, ribulose, xylulose or hexoses such as allose, altrose, galactose, glucose, idose, mannose, talose, fructose, sorbose or deoxyhexoses such as fucose or rhamnose; ii) triols such as glycerol, iii) tetraols such as pentaerythritol (tetramethylolmethane), erythritol, diglycerol, iv) pentols such as xylitol, v) hexols such as sorbitol and mannitol, or dipen-taerythritol or triglycerol, and mixtures thereof.

[0059] According to a particular embodiment, the polyol(s) are oligomers derived from one or more diols of formula (II) HO-ALK-OH formula (II) in which ALK represents a linear or branched C1-C18, in particular C1-C6, alkylene group, optionally substituted by one or more hydroxyl groups, in particular a hydroxyl group. The polyol(s) are then poly(Ci-Ci8)alkane diols. In particular, the polyol(s) may be oligomers derived from one or more diols of the abovementioned formula (II) with a weight-average molecular mass of between 200 and 4,000 g.mol-1, in particular between 300 and 3,000 g.mol-1. For example, the compound of formula (II) is such that ALK represents a (Ci-C6)alkylene group, the oligomer then being a poly(Ci-C6)alkane diol. Mention may in particular be made of polypropane diol (also known as polypropylene glycol) with a weight-average molecular mass of between 300 and 3,000 g.mol-1, or polyethylene glycol with a weight-average molecular mass of between 300 and 3,000 g.mol-1.

[0060] According to another particular embodiment, the polyol(s) may be chosen from monosaccharide or polysaccharide sugars.

[0061] According to a preferred embodiment, the compound(s) E are obtained from one or more organic polyols chosen from: - diols and triols, such as propanediols, butanediols such as 1,4-butanediol, hexanediols, dilinoleic dimer alcohols, glycerol, diethylene glycol, neopentyl glycol, tricyclodecane dimethanol, trihydroxystearin, or 2-di(hydroxymethyl)butan-1-ol; - tetraols, such as pentaerythritol (tetramethylolmethane), erythritol or diglycerol; - pentols such as xylitol; - hexols such as sorbitol, mannitol or dipentaerythritol; - polyglycerol-3, polyglycerol-6 or polyglycerol-10; and - their mixtures.

[0062] According to a more preferred embodiment, the compound(s) E are obtained from one or more organic polyols chosen from: - diols and triols, such as propanediols, butanediols such as 1,4-butanediol, hexanediols, dilinoleic dimer alcohols, glycerol, diethylene glycol, neopentyl glycol, tricyclodecane dimethanol, trihydroxystearin, or 2-di(hydroxymethyl)butan-1-ol; - tetraols, such as pentaerythritol (tetramethylolmethane), erythritol, or di-glycerol; - polyglycerol-3, polyglycerol-6 or polyglycerol-10; and - their mixtures.

[0063] According to an even more preferred embodiment, the compound(s) E are obtained from one or more organic polyols chosen from: - diols and triols chosen from propanediols, butanediols such as 1,4-butanediol, hexanediols, dilinoleic dimer alcohols, glycerol, diethylene glycol, neopentyl glycol or tricyclodecane dimethanol; - pentaerythritol (tetramethylolmethane), erythritol or diglycerol; - polyglycerol-3; and - their mixtures. Polyacids F

[0064] According to a particular embodiment, the compound(s) E are obtained from one or more polycarboxylic acids, also called in the remainder of the text "polyacids", i.e. comprising at least two carboxyl groups.

[0065] The polyacid(s) may be acyclic or (poly)cyclic, saturated or unsaturated, aromatic or not, linear or branched, and comprise at least two carboxyl groups -C(O)OH, in particular two to four groups -C(O)OH and more particularly two groups -C(O)OH.

[0066] The polyacid(s) are preferably chosen from polycarboxylic acids comprising at least two carboxyl groups -C(O)OH, in particular from 2 to 4 carboxyl groups, in particular 2 carboxyl groups and comprising a total number of carbon atoms (carbon atoms of the carboxyl groups included) ranging from 2 to 54, in particular ranging from 2 to 50 and more particularly ranging from 3 to 40, and even more particularly ranging from 3 to 36.

[0067] When the polyacid(s) comprise two carboxyl groups, it is then referred to as a dicarboxylic acid or diacid.

[0068] According to a particular embodiment, the polyacid(s) may be chosen from polycarboxylic acids, in particular dicarboxylic acids, having a molecular molar mass MM less than or equal to 200 g.mol '.

[0069] In particular, the polyacid(s) may be chosen from oxalic acid, succinic acid, adipic acid, fumaric acid, phthalic acid, terephthalic acid, their isomers, their salts of organic or mineral bases, their solvates such as hydrates and their mixtures.

[0070] According to a particular embodiment, the polyacid(s) may be chosen from polycarboxylic acids, in particular dicarboxylic acids, having a molecular molar mass MM greater than 200 g.mol *.

[0071] In particular, the polyacid(s) may be chosen from fatty polyacids, in particular fatty diacids and in particular from fatty acid dimers.

[0072] By "(poly)fatty acid" is meant a (poly)carboxylic acid comprising at least one hydrocarbon chain, linear or branched, preferably linear, saturated or unsaturated, which may contain at least one carbocycle, in particular one or two carbocycle(s), in particular of the cycloalkyl, mono or polycyclic type, for example cyclohexyl or decalinyl (cis or trans decalinyl) and comprising a total number of carbon atoms (carbon atoms of the carboxyl group(s) included) ranging from 8 to 38, in particular ranging from 8 to 36, in particular ranging from 10 to 36.

[0073] Preferably, the total number of carbon atoms of the (poly)fatty acid is even.

[0074] According to a particular embodiment, the polyacid(s) are chosen from: compounds of the following formula (III), their salts of organic or mineral bases, their solvated such as hydrates and their mixtures HO-C(O)-ALK'-C(O)-OH (III) in which ALK' represents a hydrocarbon chain, linear or branched, preferably linear, saturated or unsaturated, which may contain at least one carbocycle, in particular one or two carbocycle(s), in particular of the cycloalkyl, mono or polycyclic type, for example cyclohexyl or decalinyl (cis or trans decalinyl), the hydrocarbon chain comprising a total number of carbon atoms ranging from 6 to 36, in particular ranging from 6 to 34, in particular ranging from 8 to 34.

[0075] Examples of polyfatty acids include sebacic acid and fatty acid dimers. The term "fatty acid dimer" refers to the dimerization product of mono- or polyunsaturated fatty acids.

[0076] The fatty acids from which the fatty acid dimers can be prepared can be more particularly chosen from oleic acid, linoleic acid, palmitoleic acid, linolenic acid, eleostearic acid and mixtures thereof.

[0077] The polyacid(s) may be chosen from fatty acid dimers comprising a total number of carbon atoms ranging from 18 to 38, in particular ranging from 34 to 38 and more particularly 36 carbon atoms.

[0078] In particular, the fatty acid dimers may be chosen from the compounds of formula (III) as defined above, in which ALK' represents a hydrocarbon chain comprising a total number of carbon atoms ranging from 16 to 36, in particular ranging from 32 to 36, in particular 34, incorporating at least one carbocycle group, preferably one or two carbocycle(s), and more preferably a central carbocycle group, in particular of the mono or polycyclic cycloalkyl type, in particular cyclohexyl or decalinyl, in particular cyclohexyl.

[0079] In a particular embodiment, the polyacid(s) may be chosen from diacids of the fatty acid dimer type, containing a cycloalkyl group, in particular cyclohexyl, connected to the -C(O)OH groups via C2 to C10, in particular C4 to C8, in particular C6 alkylene chains, said cycloalkyl group having in particular pendant C4 to C12, in particular C7 to C9, in particular C8 alkyl groups. In particular, the fatty acid dimer may be formed from C16 to C20, in particular C18, fatty acids, for example from oleic acid and / or linoleic acid. Fatty acid dimers may be commercially available. Examples include fatty acid dimers marketed by Croda under the references Pripol®, in particular Pripol®1009, cosmetic grade.According to a particular embodiment, the polyacid(s) may comprise, or even consist of, diacid(s) of the fatty acid dimer type, for example Pripol® 1009. Monoacids F.

[0080] According to a particular embodiment, the compound(s) E are obtained from of one or more monocarboxylic acids also called in the rest of the text "monoacids", that is to say comprising a single carboxyl group.

[0081] Preferably, the monoacid(s) are acyclic or (poly)cyclic, saturated or unsaturated, aromatic or not, linear or branched, and comprise a total number of carbon atoms (carbon atoms of the carboxyl group included) ranging from 6 to 32, in particular ranging from 8 to 28 and more particularly ranging from 10 to 20 carbon atoms.

[0082] According to a preferred embodiment, the monoacid(s) are non-aromatic, saturated or unsaturated, linear or branched, cyclic or not, and comprise a total number of carbon atoms (carbon atoms of the carboxyl group included) ranging from 6 to 32, in particular ranging from 8 to 30 carbon atoms and more particularly ranging from 10 to 28 carbon atoms, preferentially ranging from 12 to 26 carbon atoms, more preferentially ranging from 16 to 24 carbon atoms, even more preferentially ranging from 18 to 22 carbon atoms.

[0083] When the monoacid(s) used are of natural origin, they may in particular consist of mixtures comprising saturated acids and unsaturated acids with conjugated and / or non-conjugated unsaturations.

[0084] According to a particular embodiment, the monoacid(s) are chosen from fatty acids, saturated or unsaturated.

[0085] According to a first variant, the monoacid(s) are chosen from monocarboxylic acids comprising a linear or branched, preferably linear, saturated or unsaturated hydrocarbon chain, comprising a total number of carbon atoms (carbon atoms of the carboxyl group included) of more than 7, in particular more than 8, more particularly ranging from 8 to 30, in particular ranging from 14 to 26, even more particularly ranging from 16 to 22, preferably ranging from 18 to 20.

[0086] As examples, the monoacid(s) may be chosen from isostearic acid (C18 branched saturated), stearic acid (C18 linear saturated), linoleic acid (C18 linear polyunsaturated), arachidic acid (C20 linear saturated), behenic acid (C22 linear saturated), capric acid (C10 linear saturated), caprylic acid (C8 linear saturated), their salts of organic or mineral bases, their isomers, their solvates such as hydrates and their mixtures, preferably from isostearic acid (C18 branched saturated), capric acid (C10 linear saturated), caprylic acid (C8 linear saturated), their salts of organic or mineral bases, their isomers, their solvates such as hydrates and their mixtures.

[0087] According to another variant, the monoacid(s) are chosen from (poly)cyclic monocarboxylic acids, preferably polycyclic, comprising in particular a fused mono-, bicyclic or tricyclic carbocycle, saturated and / or unsaturated, preferably unsaturated, in particular non-aromatic, and comprising from 5 to 20 atoms of carbon, said carbocycle being optionally substituted by one or more (C i-C4)alkyl groups such as methyl. Carboxylic acid anhydrides

[0088] According to a particular embodiment, the compound(s) E are obtained from one or more carboxylic acid anhydrides.

[0089] By carboxylic acid anhydride is meant an organic compound which results from the dehydration of a carboxylic acid and which comprises at least one functional group -C(O)-OC(O)-.

[0090] By way of example, the acid anhydride(s) may be chosen from trimellitic anhydride, phthalic anhydride, terephthalic anhydride and mixtures thereof. Hydroxyacids

[0091] According to a particular embodiment, the compound(s) E are derived from the polycondensation of one or more hydroxy acids.

[0092] By "hydroxy acid" is meant a monoacid or polyacid comprising a hydrocarbon chain substituted by at least one hydroxyl group.

[0093] The hydroxy acid(s) may be acyclic or (poly)cyclic, saturated or unsaturated, aromatic or not, linear or branched, and comprise a total number of carbon atoms ranging from 4 to 32, in particular ranging from 4 to 28 and more particularly ranging from 4 to 22 carbon atoms.

[0094] By way of example, the hydroxy acid(s) may be chosen from hydroxystearic acids, hydroxybutyric acids, hydroxypentanoic acids, hydroxyhexanoic acids, lactic acid, ricinoleic acid, their salts of organic or mineral bases, their isomers, their solvates such as hydrates and their mixtures.

[0095] As examples of compounds E resulting from the polycondensation of one or more hydroxy acids, mention may be made of compounds having the following INCI names: Polyhydroxy-butyrate, Polyhydroxystearic Acid, Polylactic Acid, 3-Hydroxybutyrate / 3-Hydroxyhexanoate Copolymer and Hydroxybutyric Acid / Hydroxypentanoic Acid Copolymer Lactones

[0096] According to a particular embodiment, the compound(s) E are derived from the ring-opening polymerization of one or more lactones.

[0097] By "lactone" is meant an organic compound whose functional group -C(O)-O- is part of a cycle.

[0098] By way of example, the lactone(s) are chosen from e-caprolactone, gluconolactones, glucarolactones, butyrolactones, valerolactones, octalactones, galactonolactones, and mixtures thereof, preferably the lactone is e-caprolactone.

[0099] By way of example, compound E is derived from ring-opening polymerization of one or more lactones, polycaprolactone may be mentioned.

[0100] It is understood that the particular methods of obtaining the compound(s) E described above can be combined. Special embodiments

[0101] According to a particular embodiment, the compound(s) E are derived from the reaction of one or more polyols as defined above and one or more compounds chosen from monoacids F as defined above, polyacids F as defined above, carboxylic acid anhydrides as defined above and mixtures thereof.

[0102] According to a more particular embodiment, the compound(s) E are derived from the reaction of one or more polyols as defined above and one or more compounds chosen from the monoacids F as defined above, the polyacids F as defined above and their mixtures.

[0103] According to a variant, the compound(s) E are derived from the reaction of one or more polyols as defined previously and one or more monoacids F as defined previously, in particular a vegetable oil chosen in particular from triglycerides.

[0104] According to another variant, the compound(s) E are derived from the reaction of one or more polyols as defined previously and one or more diacids F as defined previously.

[0105] Thus, according to this latter variant, the compound(s) E may be derived from the reaction of one or more diols comprising a C2-C10, preferably C2-C8, more preferably C2-C6 hydrocarbon chain, the hydrocarbon chain possibly being interrupted by an oxygen atom, preferably chosen from pro-panediols, butanediols, hexanediols, diethylene glycol, neopentyl glycol and mixtures thereof and one or more diacids F comprising a total number of carbon atoms (carbon atoms of the carboxyl groups included) ranging from 2 to 54, in particular ranging from 2 to 50 and more particularly ranging from 3 to 40, and even more particularly ranging from 3 to 36.

[0106] More particularly, the compound(s) E are derived from the reaction of one or more dimers and / or trimers of saturated or unsaturated fatty acids, preferably unsaturated fatty acids, and one or more diols.

[0107] In a preferred embodiment, the saturated fatty acid dimer(s) may comprise from 28 to 44 carbon atoms and 2 carboxylic acid groups. The saturated fatty acid trimer(s) may comprise from 42 to 66 carbon atoms and 3 carboxylic acid functions.

[0108] Preferably, one or more unsaturated fatty acid dimers are used, in particular having 36 carbon atoms and 2 carboxylic acid groups.

[0109] The unsaturated fatty acid trimer(s) may comprise from 3 to 6 unsaturations, conjugated or not, in their carbon chain.

[0110] Preferably, the unsaturated fatty acid dimer(s) and / or trimer(s) are polycarboxylic acids comprising at least 2 and up to 6 carboxylic acid groups per molecule. In a preferred embodiment, the unsaturated fatty acid dimer(s) may comprise from 28 to 44 carbon atoms and 2 carboxylic acid groups. The unsaturated fatty acid trimer(s) may comprise from 42 to 66 carbon atoms and 3 carboxylic acid functions.

[0111] Preferably, one or more dimers of unsaturated fatty acids are used, in particular having 36 carbon atoms and 2 carboxylic acid groups. Mixtures of dimers and trimers of unsaturated fatty acids and / or unsaturated fatty acids (unpolymerized and therefore corresponding to a monomer) may also be used within the scope of the invention. In the case of such a mixture, a mixture comprising more than 50% by weight of dimers is preferred, for example a mixture comprising more than 90% by weight, preferably more than 95%, of acids in the form of dimers, the remainder of the mixture possibly being trimers and / or monomers of unsaturated fatty acids. The dimer(s) and / or trimer(s) of unsaturated fatty acids may optionally be hydrogenated after the polymerization reaction of the unsaturated fatty acid, in particular to improve the stability of the dimer or trimer product.Hydrogenated fatty acid dimers (oleic or linoleic acid) are marketed under the brand names EMPOL1008, EMPOL1004, EMPOL1025, EMPOL1011 and EMPOL1062 by BASF and Pripol 1006 (dilinoleic acid) by Uniqema, International. Uniqema also markets a hydrogenated fatty acid dimer under the name Pripol 1013 (hydrogenated dilinoleic acid).

[0112] In a particularly preferred manner, the unsaturated fatty acid dimer is a dimer of linoleic acid, also called dilinoleic acid, obtained by intermolecular polymerization of linoleic acid. The unsaturated fatty acid may be of natural origin, preferably plant-based. A fatty acid of plant origin may come from any plant source producing said fatty acid. For example, in the case of linoleic acid, molecules extracted from soybean or rapeseed may be used.

[0113] According to another variant, the compound(s) E are derived from the reaction of one or more polyols as defined previously and one or more diacids F as defined previously and one or more monoacids F as defined previously.

[0114] Thus, according to this variant, the compound(s) E may be formed from at least, or even formed solely, from glycerol, a fatty acid dimer as described previously, in particular in C34 to C38 and more particularly in C36, by example that marketed by the company Croda, under the reference Pripol®1009, cosmetic grade and isostearic acid.

[0115] Alternatively, according to this variant, the compound(s) E may be formed from at least, or formed solely, from pentaerythritol, at least one diacid F, preferably at least one diacid F having a molecular molar mass MM less than or equal to 200 g.mol-1, and more particularly chosen from oxalic acid, succinic acid, adipic acid, and mixtures thereof, as well as their optical, geometric isomers, their salts of organic or mineral bases, and their solvates such as hydrates, more preferably still adipic acid; and at least one monoacid F as defined above, preferably comprising more than 7 carbon atoms, in particular from 7 to 26 carbon atoms and more particularly from 7 to 20 carbon atoms, and more particularly a mixture of several monoacids of 7 to 26 carbon atoms such as a mixture of capric acid, caprylic acid and isostearic acid.

[0116] The compound(s) E used according to the invention may have a weight-average molar mass, Mw, ranging from 400 to 100,000 g.mol '. The weight-average molar mass can be determined by size exclusion chromatography (SEC).

[0117] According to another variant, the compound(s) E are derived from the reaction of one or more polyols as defined previously and one or more diacids F as defined previously and one or more carboxylic acid anhydrides as defined previously.

[0118] Thus, according to this latter variant, the compound(s) E can be formed from neopentyl glycol and adipic acid and trimellitic anhydride.

[0119] According to a particular embodiment of the invention, the compound(s) E are liquid. By "liquid" compound is meant a compound which begins to flow under its own weight in less than one minute at room temperature (25°C) and atmospheric pressure.

[0120] The compound(s) E are more preferably derived from: - the reaction of one or more polyols as defined above and one or more monoacids F as defined above, in particular a vegetable oil chosen in particular from triglycerides; and / or - the reaction of one or more polyols as defined above and one or more diacids F as defined above; and / or - the reaction of one or more polyols as defined above and one or more diacids F as defined above and one or more monoacids F as defined above; and / or - the reaction of one or more polyols as defined above and one or several diacids F as defined above and one or more carboxylic acid anhydrides as defined above; and / or - the polycondensation of one or more hydroxy acids; and / or - ring-opening polymerization of one or more lactones; it being understood that: ■ the polyol(s) are preferably chosen from: - diols and triols, such as propanediols, butanediols such as 1,4-butanediol, hexanediols, dilinoleic dimer alcohols, glycerol, diethylene glycol, neopentyl glycol, tricyclodecane dimethanol, trihydroxystearin, or 2-di(hydroxymethyl)butan-1-ol; - tetraols, such as pentaerythritol (tetramethylolmethane), erythritol or diglycerol; - pentols such as xylitol; - hexols such as sorbitol, mannitol or dipentaerythritol; - polyglycerol-3, polyglycerol-6 or polyglycerol-10; and - their mixtures; and / or ■ the monoacid(s) F are preferably chosen from monocarboxylic acids comprising a linear or branched, preferably linear, saturated or unsaturated hydrocarbon chain, comprising a total number of carbon atoms (carbon atoms of the carboxyl group included) of more than 7, preferably more than 8, more preferably ranging from 8 to 30, the monoacid(s) F being even more preferably chosen from capric acid, caprylic acid, isostearic acid, their organic or mineral base salts, their isomers and their mixtures; and / or ■ the diacid(s) F are preferably chosen from dilinoleic acid, adipic acid, terephthalic acid, phthalic acid, sebacic acid, succinic acid, fumaric acid, their organic or mineral base salts, their isomers and their mixtures; and / or ■ the hydroxy acid(s) are preferably chosen from hydroxystearic acids, hydroxybutyric acids, hydroxypentanoic acids, hydroxyhexanoic acids, lactic acid, their salts of organic or mineral bases, their isomers, their solvates such as hydrates and their mixtures; and / or ■ the lactone(s) are preferably chosen from e-caprolactone, glucono-lactones, glucarolactones, butyrolactones, valerolactones, octalactones, galactonolactones, and mixtures thereof, more preferably the lactone is e-caprolactone.

[0121] According to a preferred embodiment, the compound(s) E are chosen from polymers having the following INCI names: - Dimer Dilinoleyl Dimer Dilinoleate; - Dilinoleic Acid / Butanediol Copolymer; - Polyhydroxystearic Acid; - Hydroxybutyric Acid / Hydroxypentanoic Acid Copolymer; - 3-Hydroxybutyrate / 3-Hydroxyhexanoate Copolymer; - Polyhydroxybutyrate; - Adipic Acid / Diglycol Crosspolymer; - Adipic Acid / Neopentyl Glycol / Trimellitic Anhydride Copolymer; - Polyethylene Terephthalate; - Polybutylene Terephthalate; - Polylactic Acid; - Polycaprolactone; - Dilinoleic Acid Propanediol Copolymer; - Adipic Acid / Neopentyl Glycol Copolymer; - Pentaerythrityl Isostearate / Caprate / Caprylate / Adipate; - Diisostearoyl Polyglyceryl-3 Dimer Dilinoleate; - Capryloyl Glycerin / Sebacic Acid Copolymer; - 1,4-Butanediol / Succinic Acid / Adipic Acid Copolymer; - 1,4-Butanediol / Succinic Acid / Adipic Acid / HDI Copolymer; - Adipic Acid / 1,4-Butanediol / Terephthalate Copolymer; - Adipic Acid / Dilinoleic Acid / Hexylene Glycol Copolymer; - Adipic Acid / Fumaric Acid / Phthalic Acid / Tricyclodecane Dimethanol Copolymer; and -their mixtures.

[0122] According to a more preferred embodiment, the compound(s) E are chosen from polymers having the following INCI names: - Dimer Dilinoleyl Dimer Dilinoleate; - Dilinoleic Acid / Butanediol Copolymer; - Polyhydroxystearic Acid; and - their mixtures

[0123] According to a preferred embodiment, composition (C) comprises: ■ the combination of lauric acid and oleic acid, the molar ratio of total quantity of lauric acid / total quantity of oleic acid in composition (C) preferably being from 0.25 to 0.7, more preferably equal to 1 / 3; and ■ one or more compounds E chosen from polymers having the following INCI names: - Dimer Dilinoleyl Dimer Dilinoleate; - Dilinoleic Acid / Butanediol Copolymer; - Polyhydroxystearic Acid; and - their mixtures

[0124] Preferably, the composition (C) comprises a total content of compounds E of at least 0.01% by weight, preferably at least 0.1% by weight, more preferably ranging from 0.01% to 20% by weight, even more preferably ranging from 0.1% to 15% by weight, relative to the total weight of the composition (C).

[0125] Preferably, the composition (C) comprises a total content of distinct compounds D and compounds E of at least 0.02% by weight, preferably at least 0.2% by weight, more preferably ranging from 0.2% to 100% by weight, even more preferably ranging from 1.1% to 100% by weight relative to the total weight of the composition (C).

[0126] Preferably, the mass ratio of total quantity of distinct compounds D / total quantity of compounds E in composition (C) is from 5 to 1000, preferably from 5 to 200. Other characteristics of the composition (C)

[0127] Composition (C) is a cosmetic composition, i.e. which comprises a cosmetically acceptable medium, i.e. a medium compatible with human keratin fibers.

[0128] Composition (C) may comprise water, preferably in a total content ranging from 0.1% to 98% by weight, relative to the total weight of the composition.

[0129] According to a preferred embodiment, the composition (C) comprises a total water content of less than 30% by weight, preferably less than 10% by weight, more preferably less than 5% by weight, even more preferably less than 1% by weight, most preferably less than 0.1% by weight, and better still less than 0.01% by weight relative to the total weight of the composition (C), and even better still the composition (C) is anhydrous.

[0130] Where appropriate, such small quantities of water may in particular be provided by ingredients of the composition which may contain residual quantities thereof.

[0131] The pH of composition (C) is preferably from 2 to 11, more preferably from 3 to 9. The pH can be adjusted using an organic or mineral acid or an organic or mineral base usually used in cosmetics.

[0132] Composition (C) may comprise one or more organic solvents chosen from C2-C4 alcohols, polyols and polyol ethers, aromatic alcohols, hydrocarbon oils, and mixtures thereof.

[0133] When present in composition (C), this or these organic solvents may be present in composition (C) in a total content ranging from 0.01% to 98% by weight, preferably ranging from 30% to 95% by weight relative to the total weight of composition (C).

[0134] Composition (C) is preferably liquid.

[0135] By "liquid composition" within the meaning of the present invention is meant on a macroscopic scale, a composition which does not have its own form and cannot be seized, unlike a solid. It is a fluid that adapts to the shape of the container in which it is placed at room temperature (25°C). Transferred into another container, a liquid still retains its volume. A liquid therefore has its own volume. At rest, the free surface of a liquid is generally flat and horizontal in equilibrium.

[0136] Composition (C) may be in any of the galenic forms conventionally used for hair application. In a non-limiting manner, composition (C) may be in the form of a lotion, a serum, a cream, a mousse, a gel, a spray or a hairspray.

[0137] Composition (C) can be used in rinse-off or non-rinse-off application.

[0138] Composition (C) may be in the form of a mask, a composition conditioning or pre-shampoo. Composition (C) can also be in the form of a composition to be added or mixed before application to a mask or conditioning composition.

[0139] Composition (C) may be packaged in a pump bottle or in an aerosol container, in order to ensure application of composition (C) in spray form (lacquer) or in foam form. In these cases, composition (C) preferably comprises at least one propellant.

[0140] According to a preferred embodiment, the composition (C) comprises a total content of coloring agents of less than 0.1% by weight, preferably less than 0.01% by weight, more preferably less than 0.01% by weight relative to the total weight of the composition (C), even more preferably, the composition (C) is free of coloring agents.

[0141] By "coloring agent" is meant an oxidation dye, a direct dye or a pigment.

[0142] By "oxidation dye" is meant an oxidation dye precursor chosen from oxidation bases and couplers. Oxidation bases and couplers are compounds with little or no color which, by a condensation reaction in the presence of an oxidizing agent, give a colored species.

[0143] By "direct dye" is meant a natural and / or synthetic dye, including in the form of extract(s), different from oxidation dyes. These are colored compounds which will diffuse superficially on the fiber. They can be ionic or non-ionic, i.e. anionic, cationic, neutral or non-ionic.

[0144] According to a preferred embodiment, the composition (C) comprises a total silicone content of less than 5% by weight, preferably less than 2% by weight, more preferably less than 1% by weight, even more preferably less than 0.1% by weight, most preferably less than 0.01% by weight, and better still less than 0.001% by weight relative to the total weight of the composition (C), and still better, composition (C) is free of silicones.

[0145] According to a preferred embodiment, the composition (C) comprises a total content of cationic polymers of less than 5% by weight, preferably less than 2% by weight, more preferably less than 1% by weight, even more preferably less than 0.1% by weight, most preferably less than 0.01% by weight, and better still less than 0.001% by weight relative to the total weight of the composition (C), and even better still the composition (C) is free of cationic polymers.

[0146] By "cationic polymer" is meant any non-silicone polymer (not comprising a silicon atom) containing cationic groups and / or groups ionizable into cationic groups, and not containing anionic groups and / or groups ionizable into anionic groups.

[0147] According to a preferred embodiment, the composition (C) comprises a total content of cationic surfactants of less than 5% by weight, preferably less than 2% by weight, more preferably less than 1% by weight, even more preferably less than 0.1% by weight, most preferably less than 0.01% by weight, and better still less than 0.001% by weight relative to the total weight of the composition (C), and even better still the composition (C) is free of cationic surfactants.

[0148] According to a preferred embodiment, the composition (C) comprises a total content of poly(oxyethylenated) compounds of less than 5% by weight, preferably less than 2% by weight, more preferably less than 1% by weight, even more preferably less than 0.1% by weight, most preferably less than 0.01% by weight, and better still less than 0.001% by weight relative to the total weight of the composition (C), and even better still the composition (C) is free of poly(oxyethylenated) compounds.

[0149] As an example of poly(oxyethylenated) compounds, mention may be made of polyethylene glycols (PEG).

[0150] Composition (C) can be applied to dry or wet keratin fibers, preferably to wet keratin fibers.

[0151] The bath ratio of the composition (C) applied to the keratin fibers can range from 0.02 to 10. By bath ratio is meant the ratio between the total weight of the composition (C) applied and the total weight of keratin fibers to be treated.

[0152] The method may comprise at least one additional step following step i) chosen from the following steps ii) to iv): ii) a step of applying the composition (C) to the keratin fibers, preferably lasting at least 10 seconds, said application step optionally being carried out under an airtight film such as papillote or plastic film; iii) a step of rinsing and / or washing the keratin fibers; iv) a step of drying the keratin fibers in ambient air or using a heating device.

[0153] Preferably, the method comprises the additional steps ii) and iv) as described above and carried out in that order.

[0154] According to a particular embodiment, the method comprises all of the additional steps ii), iii) and iv) as described previously and carried out in this order.

[0155] The step of applying the composition (C) may have a duration ranging from 10 seconds to 60 minutes, preferably ranging from 30 seconds to 30 minutes.

[0156] The temperature of the heating device may range from 45°C to 230°C, preferably from 45°C to 100°C, more preferably from 50°C to 80°C. For example, a hair dryer, a heating helmet, an iron or a heating brush may be used as the heating device.

[0157] The drying step iv) may also be a combination of drying in the air or with a heating device at a temperature ranging from 50°C to 80°C such as a hair dryer or a heating hood, optionally followed by a step of passing through an iron, preferably a straightening iron.

[0158] Steps i) and optionally steps ii) to iv) may be repeated as many times as necessary and each cycle of steps may be spaced from the next by a few minutes to a few days or weeks. Different hair treatments of the invention may be carried out between different application cycles, before or after. Composition (C)

[0159] According to a second aspect, the subject of the present invention is a composition (C) as defined above. Uses

[0160] According to a third aspect, the subject of the present invention is the use of a composition (C) as defined above for the care of keratin fibers, preferably for providing the keratin fibers with softness to the touch and / or a smoothness to the touch and / or shine, more preferably for providing softness to the touch and / or a smoothness to the touch.

[0161] According to a fourth aspect, the subject of the present invention is the use of a composition (C) as defined above to protect keratin fibers from humidity, preferably to limit the formation of frizz and / or the increase in volume of the hair in a humid environment. Examples

[0162] The following examples provide a better understanding of the invention without, however, being limiting in nature. In the following examples, unless otherwise indicated, all quantities are indicated as a percentage by mass relative to the total weight of the composition.

[0163] The following compositions C1 to C3 were prepared according to the preparation protocol described below:

[0164] [Tables 1] Ingredients Cl C2 C3 Polyhydroxystearic Acid (Dispersun DSP-OL300 marketed by Innospec Performance Chemicals) 5 Dilinoleic Acid / Butanediol Copolymer (Viscoplast 14436 H marketed by Biosynthis) 5 Dimer Dilinoleyl Di-linoleate (Lusplan DD-DA7 marketed by Nippon Fine Chemical Company Ltd.) 5 Lauric acid / oleic acid mixture (molar ratio 1 / 3) Qsp 100 Qsp 100 Qsp 100 Process for the preparation of compositions C1 to C3

[0165] 1 mole of lauric acid is weighed into a flask to which 3 moles are added of oleic acid. The mixture is heated with stirring at 70°C for 1 hour. After returning the temperature of the reaction medium to room temperature, compound E is added to the resulting liquid and the mixture is again heated with stirring at 70°C for 20 minutes. After returning to room temperature, the composition is obtained in the form of a slightly viscous, transparent, colorless liquid of the oil type.

[0166] Composition C4 was prepared from the following composition C0 according to the preparation protocol described below:

[0167] [Tables2] Ingredients CO Stearamidopropyl diethylamine 2,4 Cetearyl alcohol 6 Cetyl esters 1,5 Isopropyl myristate 2 Sunflower oil 1 Shea butter 1 Caprylyl glycol 0,5 Tartaric acid 0,6 Preservatives qs Water Qsp 100

[0168] [Tables3] Ingredients C4 Composition Cl 10 Composition C0 Qsp 100 Protocol for the preparation of composition C4

[0169] 10% by weight of composition Cl is incorporated into composition CO. The mixture is heated with stirring at 60°C for 1 hour. After returning to room temperature with stirring, a smooth and homogeneous white cream is obtained.

[0170] Example 1: Evaluation of hairstyle hold in a humid environment

[0171] The hold of the hairstyle, i.e. the formation of frizz and the increase in volume of hair in a humid environment were evaluated for compositions Cl, C2 and C4 according to the evaluation protocol described below.

[0172] Wicks used

[0173] 2.7g strands of Brazilian hair with a length of 27cm and type IV curl were used.

[0174] Evaluation protocol

[0175] The strands were washed using a DOP shampoo (0.4 g / g of hair) before applying the compositions to be tested. 81 mg of each of the test compositions were then applied to separate damp strands, previously wrung out and dabbed on absorbent paper. This application was done with the fingers while kneading the hair fiber. The hair strands were then combed, detangled and placed in a glove box at 20% relative humidity at 25°C for 2 hours. The wicks were then placed in an oven at 80% relative humidity at 25°C for 24 hours. Volume and frizz measurements via the measurement of the width of the strand at mid-height were carried out at the exit of the oven and compared with the value obtained for a reference strand which had not undergone treatment with the composition according to the invention.

[0176] Results of the evaluation

[0177] The results of the measurements of the widths of the wicks at mid-height in cm are summarized in the table below:

[0178] [Tables4] Tested compositions Width of wicks at mid-height (before application of compositions) Width of wicks at mid-height final (out of oven) Cl 2 3.0 C2 2 3.2 C4 2 3.7 Reference (Untreated wick) 2 5.0

[0179] It is observed that the width values ​​of the wicks at mid-height are lower for the wicks treated by the method according to the invention than for the reference wick.

[0180] The method according to the invention therefore makes it possible to limit the formation of frizz and the increase in the volume of the hair in a humid environment, even in the absence of silicone raw materials.

[0181] Example 2: Evaluation of "smoothness to the touch" by the friction test

[0182] The surface of a natural hair is perceived as smooth, that is to say with a co efficient low friction, unlike that of damaged hair which is perceived as rough, i.e. with a high coefficient of friction. Hair-damaging treatments, such as coloring and bleaching, are known to increase the hair's coefficient of friction. Therefore, the lower the coefficient of friction of the hair, the better the feeling of repaired hair and the ease of combing and detangling the hair in dry and wet conditions.

[0183] The "smoothness to the touch" was evaluated for compositions C1 to C4 according to the protocol assessment described below.

[0184] Wicks used

[0185] For the study, 3.5 cm strands of bleached Caucasian hair (alkaline solubility SA22) were used.

[0186] Evaluation protocol

[0187] In this test, the 3.5 cm long wick is fixed in the sample holder of a Zwickiline Z2.5 mechanical testing machine (Zwick, Germany) equipped with a 100 Newton (N) measuring cell. A normal force of 0.5 N is applied to the wicks by means of a clamp covered with disposable plastic foam. The foam is replaced after each measurement. The testing machine imposes a displacement at a constant speed of 100 mm / min to extract the wick from the clamp. During withdrawal, the force required to extract the hair brush is measured as a function of the displacement. The force / displacement curve obtained is characterized at the end of the stroke by a plateau, the average force at the plateau is recorded. The impact of hair treatments on friction properties is determined by comparing the average force at the reference wick plateau with the average force at the treated wick plateau.

[0188] For dry measurements (dry friction force), the hair is conditioned at 25°C and 45% relative humidity.

[0189] For wet measurements (wet friction force), the hair strands are immersed in demineralized water for one minute prior to measurement.

[0190] Compositions C1 to C4 were applied according to the leave-on protocol described below, then measurements in the dry and wet states were carried out according to the protocol described previously.

[0191] A power ratio between treated hair and untreated hair could thus be determined: FtreatedS(N) / Funtreated(N).

[0192] Leave-on protocol

[0193] 1) Washing the strand with a DOP shampoo at a bath ratio of 0.4 g / g of hair; 2) Combing the wick; 3) Application of the compositions to still damp hair according to a bath ratio of 0.15 g / g of hair, no application time; 4) Let the wick dry at room temperature (22°C)

[0194] Results

[0195] The results of the measurements are summarized in the table below:

[0196] [Tables5] Tested composition Protocol Treated / Untreated on dry hair Leave-on / Untreated on wet hair Cl Leave-on 0.43 0.33 C2 Leave-on 0.42 0.34 C3 Leave-on 0.39 0.34 C4 Leave-on 0.98 0.72

[0197] Lower friction forces are observed on dry and wet hair for hair treated by the process according to the present invention than for untreated hair. The surface of the hair is smoother, even in the absence of silicone raw materials. Treated hair is softer, easier to comb and detangle, than untreated hair.< / v>

Claims

1. Claims Process for treating keratin fibers comprising step i) of applying to the keratin fibers a composition (C) comprising: • at least two distinct compounds D chosen independently from the compounds of formula (I) below, their salts, their isomers, their solvates such as hydrates and their mixtures:

2. Formula (I) in which: ■ R1 represents: - a hydrocarbon group, linear or branched, saturated or unsaturated, comprising from 6 to 26 carbon atoms, the hydrocarbon group being optionally substituted by one or more groups, identical or different, chosen from: hydroxyl (-OH), amino (-NH2), carboxyl (-COOH), (hetero)cyclic such as phenyl and / or optionally interrupted by one or more heteroatoms or groups chosen from -O-, -CO-, -NRa-, or combinations thereof such as -O-CO-, -(CO)-O-, -NRa-(CO)- or -(CO)-NRa-; or - a (hetero)cyclic group such as phenyl, optionally substituted by one or more groups, identical or different, chosen from: hydroxyl (-OH) or Rb-(CO)-; ■ Ra represents a hydrogen atom or a hydrocarbon group, linear or branched, saturated or unsaturated, comprising from 1 to 10 carbon atoms optionally substituted by one or more identical or different groups chosen from (-OH), amino (-NH2) or carboxyl (-COOH); ■ Rb represents a (C2-Cio)alkyl group; and • one or more compounds E chosen from oligoesters, polyesters and their mixtures. Process according to the preceding claim, in which R1 represents a hydrocarbon group, linear or branched, saturated or unsaturated, comprising from 6 to 26 carbon atoms, the hydrocarbon group being optionally substituted by one or more groups, identical or different, chosen from: hydroxyl (-OH), amino (-NH2), carboxyl (-COOH), (hetero)cyclic such as phenyl and / or optionally interrupted by one or more heteroatoms or groups chosen from -0-, -CO-, -NRa-, or their combinations such as -O-CO-, -(CO)-O-, -NRa-(C0)- or -(C0)-NRa-, preferably a hydrocarbon group, linear or branched, saturated or unsaturated, unsubstituted, comprising from 6 to 26 carbon atoms, more preferably a hydrocarbon group, linear or branched, saturated or unsaturated, unsubstituted, comprising from 6 to 20 carbon atoms.

3. A method according to any one of the preceding claims, wherein at least one of the distinct compounds D, preferably all of the distinct compounds D are in non-salified form.

4. A method according to any one of the preceding claims, wherein at least two of the distinct compounds D are in non-salified form and the molar ratio of total amount of one of the distinct compounds D in non-salified form / total amount of another of the distinct compounds D in non-salified form in composition (C) is from 0.25 to A

5. A method according to any one of the preceding claims, wherein composition (C) comprises no more than five distinct compounds D, preferably no more than four distinct compounds D, more preferably no more than three distinct compounds D, even more preferably no more than two distinct compounds D.

6. A method according to any one of the preceding claims, wherein the distinct compounds D are selected from the following compounds 1 to 39, their salts, their isomers, their solvates such as hydrates and their mixtures: Diethylamino acid Compound 1 Palmitic acid Compound 2 Oi- Myristic acid Compound 3 OH Iaunque acid Compound 4 OH Isosteafic acid Compound 5 0 RC with RCO- represented the ac^es groups derived from coconut ndx Cocsyi Sarcosine Lauroyï Lysine Compound 7 Adde béhéntqae Compound 8 n-Octsno^-S-sa^üque acid Compound 9 Hydraxystearic acid Compound 10 2-dodecanol:msdope:ntanedioic acid Compound 11 2-heps adecanamidopetltanedmïqae acid Compound 12 J Qx ..-yy CH Glyceiyi Stearate Ciiraie Compound 13 OH Capryioyi Giyd&e Compound 14 1 l-Aminoundecanic Acid Compound 15 Capric acid Compound 16 Eaptyfic acid Tü-hyds'o»fdec.aàoic acid OH Adde 1 G-^droxy-2-de&enoic Compound 19 Hydroxystenylsuccinate Compound 20 Acsfe £kaminocaproic acid Compound 21 Laweth-11 casboxylic acid Compound 22 O O Adde acetamidocapfosqae Compound 23 QH Adde aieuriëque .Arachitic acid Compound 25 OH Adde aracHttodque Compound 26 Add. 24Mtylocianoïqu& Compound 27 Cerestic acid Compound 28 4-Ehihy focta-2 4-dsenoic acid Adde 4-éihyioctanmqüe Compound 30 1 hour Stearic Acid Compound 31 Linal-eiqu® acid Compound 32 Drwjamic Acid Compound 33 Genetic acid Compound 34 Heptaenoic acid Compound 35 Ackfe gtBdenic Compound 36 O Adde peiargaraque Compound 37 OH Phenyllacedic acid Compound 38 Ftcjpoiéiqise acid Compound 39

7. preferably chosen from compounds 1 to 20, 22, 25, 26, 28, 31, 32, 36 or 39, their salts, their isomers, their solvates such as hydrates and their mixtures; more preferably chosen from compounds 1, 4, 16 or 17, their salts, their isomers, their solvates such as hydrates and their mixtures. Method according to claim 1, in which the distinct compounds D are chosen from the following combinations of compounds: - the combination of caprylic acid and lauric acid, the molar ratio total amount of caprylic acid / total amount of lauric acid in composition (C) preferably being equal to 3 / 1; - the combination of capric acid and lauric acid, the molar ratio of total amount of capric acid / total amount of lauric acid in composition (C) preferably being equal to 2 / 1; - the combination of lauric acid and oleic acid, the molar ratio of total amount of lauric acid / total amount of oleic acid in composition (C) preferably being from 0.25 to 0.7, more preferably equal to 1 / 3; - the combination of caprylic acid and capric acid, the molar ratio of total amount of caprylic acid / total amount of capric acid in composition (C) preferably being equal to 1 / 1; - the combination of capric acid and sodium laurate, the molar ratio of total amount of capric acid / total amount of sodium laurate in composition (C) preferably being equal to 4 / 1;preferably from the following combinations of compounds: - the combination of caprylic acid and lauric acid, the molar ratio of total amount of caprylic acid / total amount of lauric acid in composition (C) preferably being equal to 3 / 1; - the combination of capric acid and lauric acid, the molar ratio of total amount of capric acid / total amount of lauric acid in composition (C) preferably being equal to 2 / 1; - the combination of lauric acid and oleic acid, the molar ratio of total amount of lauric acid / total amount of oleic acid in composition (C) preferably being from 0.25 to 0.7, more preferably equal to 1 / 3; - the combination of caprylic acid and capric acid, the molar ratio of total amount of caprylic acid / total amount of capric acid in composition (C) preferably being equal to 1 / 1;more preferably, composition (C) comprises the combination of lauric acid and oleic acid, the molar ratio of total quantity of lauric acid / total quantity of oleic acid in composition (C) preferably being from 0.25 to 0.7, more preferably equal to 1 / 3.;

8. A method according to any one of the preceding claims, wherein the composition (C) comprises a total content of distinct compounds D of at least 0.01% by weight, preferably at least 0.05% by weight, more preferably ranging from 0.1% to 99.9% by weight, even more preferably ranging from 1% to 95% by weight relative to to the total weight of the composition (C).

9. Process according to any one of the preceding claims, in which the compound(s) E are derived from: - the reaction of one or more polyols and one or more compounds chosen from carboxylic acids F comprising one or more carboxyl groups, carboxylic acid anhydrides and mixtures thereof; and / or - the polycondensation of one or more hydroxy acids; and / or - the ring-opening polymerization of one or more lactones.

10. Process according to any one of the preceding claims, in which the compound(s) E are derived from: - the reaction of one or more polyols and one or more monoacids F, in particular a vegetable oil chosen in particular from triglycerides; and / or - the reaction of one or more polyols and one or more diacids F; and / or - the reaction of one or more polyols and one or more diacids F and one or more monoacids F; and / or - the reaction of one or more polyols and one or more diacids F and one or more carboxylic acid anhydrides; and / or - the polycondensation of one or more hydroxyacids; and / or - the ring-opening polymerization of one or more lactones;it being understood that: ■ the polyol(s) are preferably chosen from: - diols and triols, such as propanediols, butanediols such as 1,4-butanediol, hexanediols, dilinoleic dimer alcohols, glycerol, diethylene glycol, neopentyl glycol, tricyclodecane di-methanol, trihydroxystearin, or 2-di(hydroxymethyl)butan-1-ol; - tetraols, such as pentaerythritol (tetramethylolmethane), erythritol or diglycerol; - pentols such as xylitol; - hexols such as sorbitol, mannitol or dipentaerythritol; - polyglycerol-3, polyglycerol-6 or polyglycerol-10; and - mixtures thereof; and / or ■ the monoacid(s) F are preferably chosen from monocarboxylic acids comprising a linear or branched, preferably linear, saturated or unsaturated hydrocarbon chain, comprising a total number of carbon atoms (carbon atoms of the group; carboxyl included) of more than 7, preferably more than 8, more preferably ranging from 8 to 30, the monoacid(s) F being even more preferably chosen from capric acid, caprylic acid, isostearic acid, their salts of organic or mineral bases, their isomers and their mixtures; and / or ■ the diacid(s) F are preferably chosen from dilinoleic acid, adipic acid, terephthalic acid, phthalic acid, sebacic acid, succinic acid, fumaric acid, their salts of organic or mineral bases, their isomers and their mixtures; and / or ■ the hydroxy acid(s) are preferably chosen from hydroxystearic acids, hydroxybutyric acids, hydroxypentanoic acids, hydroxyhexanoic acids, lactic acid, their salts of organic or mineral bases, their isomers, their solvates such as hydrates and their mixtures; and / or ■ the lactone(s) are preferably chosen from e-caprolactone, gluconolactones, glucarolactones, butyrolactones, valerolactones, octalactones, galactonolactones, and mixtures thereof, more preferably the lactone is e-caprolactone; the compound(s) E being preferably chosen from polymers having the following INCI names: - Dimer Dilinoleyl Dimer Dilinoleate; - Dilinoleic Acid / Butanediol Copolymer; - Polyhydroxystearic Acid; - Hydroxybutyric Acid / Hydroxypentanoic Acid Copolymer; - 3-Hydroxybutyrate / 3-Hydroxyhexanoate Copolymer; - Polyhydroxybutyrate; - Adipic Acid / Diglycol Crosspolymer; - Adipic Acid / Neopentyl Glycol / Trimellitic Anhydride Copolymer; - Polyethylene Terephthalate; - Polybutylene Terephthalate; - Polylactic Acid; - Polycaprolactone; - Dilinoleic Acid Propanediol Copolymer; - Adipic Acid / Neopentyl Glycol Copolymer; - Pentaerythrityl Isostearate / Caprate / Adipate; - Diisostearoyl Polyglyceryl-3 Dimer Dilinoleate; - Capryloyl Glycerin / Sebacic Acid Copolymer; - 1,4-Butanediol / Succinic Acid / Adipic Acid Copolymer; - 1,4-Butanediol / Succinic Acid / Adipic Acid / HDI Copolymer; - Adipic Acid / 1,4-Butanediol / Terephthalate Copolymer; - Adipic Acid / Dilinoleic Acid / Hexylene Glycol Copolymer; - Adipic Acid / Fumaric Acid / Phthalic Acid / Tricyclodecane Dimethanol Copolymer; and - their mixtures; compound(s) E being more preferably chosen from polymers having the following INCI names: - Dimer Dilinoleyl Dimer Dilinoleate; - Dilinoleic Acid / Butanediol Copolymer; - Polyhydroxystearic Acid; and - their mixtures.

11. Method according to any one of the preceding claims, in which the composition (C) comprises a total content of compounds E of at least 0.01% by weight, preferably at least 0.1% by weight, more preferably ranging from 0.01% to 20% by weight, even more preferably ranging from 0.1% to 15% by weight, relative to the total weight of the composition (C).

12. Method according to any one of the preceding claims, in which the mass ratio of total quantity of distinct compounds D / total quantity of compounds E in composition (C) is from 5 to 1000, preferably from 5 to 200.

13. A method according to any one of the preceding claims, wherein the composition (C) comprises a total silicone content of less than 5% by weight, preferably less than 2% by weight, more preferably less than 1% by weight, even more preferably less than 0.1% by weight, most preferably less than 0.01% by weight, and better still less than 0.001% by weight relative to the total weight of the composition (C), and even better still, the composition (C) is free of silicones.

14. A method according to any one of the preceding claims, wherein the composition (C) comprises a total content of cationic polymers of less than 5% by weight, preferably less than 2% by weight, more preferably less than 1% by weight, even more preferably less than 0.1% by weight, most preferably less than 0.01% by weight, and better still less than 0.001% by weight relative to the total weight of the composition (C), and even better still the composition (C) is free of cationic polymers.

15. A method according to any one of the preceding claims, wherein the composition (C) comprises a total content of cationic surfactants of less than 5% by weight, preferably less than 2% by weight, more preferably less than 1% by weight, even more preferably less than 0.1% by weight, most preferably less than 0.01% by weight, and better still less than 0.001% by weight relative to the total weight of the composition (C), and even better still the composition (C) is free of cationic surfactants.

16. A method according to any one of the preceding claims, wherein the composition (C) comprises a total content of poly(oxyethylenated) compounds of less than 5% by weight, preferably less than 2% by weight, more preferably less than 1% by weight, even more preferably less than 0.1% by weight, most preferably less than 0.01% by weight, and better still less than 0.001% by weight relative to the total weight of the composition (C), and even better still the composition (C) is free of poly(oxyethylenated) compounds.

17. A method according to any one of the preceding claims, wherein the composition (C) comprises a total water content of less than 30% by weight, preferably less than 10% by weight, more preferably less than 5% by weight, even more preferably less than 1% by weight, most preferably less than 0.1% by weight, and better still less than 0.01% by weight relative to the total weight of the composition (C) and even better still the composition (C) is anhydrous.

18. A method according to any one of the preceding claims, wherein composition (C) comprises one or more organic solvents chosen from C2-C4 alcohols, polyols and polyol ethers, aromatic alcohols, hydrocarbon oils, and mixtures thereof.

19. Process according to any one of the preceding claims in which the composition (C) is applied to dry or wet keratin fibres, preferably to wet keratin fibres.

20. Method according to the preceding claim comprising at least one additional step following step i) chosen from the following steps ii) to iv): ii) a step of applying the composition (C) to the keratin fibers, preferably lasting at least 10 seconds, said application step optionally being carried out under a hermetic film such as a papillote or plastic film; iii) a step of rinsing and / or washing the keratin fibers; iv) a step of drying the keratin fibers in ambient air or using a heating device.

21. Composition (C) as defined in any one of claims 1 to 18.

22. Use of a composition (C) as defined in any one of claims 1 to 18 for the care of keratin fibers, preferably for providing the keratin fibers with softness to the touch and / or a smoothness to the touch and / or shine, more preferably for providing softness to the touch and / or a smoothness to the touch.

23. Use of a composition (C) as defined in any one of claims 1 to 18 for protecting keratin fibers from humidity, preferably for limiting the formation of frizz and / or the increase in volume of the hair in a humid environment.