Cosmetic composition comprising at least one silicone of specific formula, at least one aminosilicone, at least one particular copolymer and at least one polyol

Abstract

Cosmetic composition comprising at least one silicone of specific formula, at least one aminosilicone, at least one particular copolymer and at least one polyol The present invention relates to a cosmetic composition comprising: (a) at least one silicone of formula (X); (b) at least one aminosilicone and (c) at least one copolymer comprising at least one 2-acrylamido-2-methylpropanesulfonic acid monomer, at least one monomer with a hydrophobic group and at least one ethylenically unsaturated monomer which does not comprise any hydrophobic group and (d) at least one polyol; Figure for abstract: none

Description

Title of the invention: Cosmetic composition comprising at least one silicone of specific formula, at least one aminosilicone, at least one particular copolymer and at least one polyol

[0001] The present invention relates to a cosmetic composition comprising at least one silicone of specific formula, at least one aminosilicone, at least one particular copolymer and at least one polyol.

[0002] The invention also relates to the cosmetic process for treating keratin fibers comprising the step of applying said cosmetic composition to the keratin fibers and the use of said cosmetic composition for the cosmetic treatment of keratin fibers and relates to a device suitable for applying said cosmetic composition to the keratin fibers. Technical field

[0003] Keratin fibers, including human keratin fibers such as hair, are subjected to numerous external aggressions throughout daily activities, which can lead to difficulties in combing and keeping hair manageable, smooth and supple.

[0004] In the field of cosmetic treatment of keratin fibers, and more particularly in the field of washing and / or hair care, rinse-out products are used, but also leave-in products. These products aim to provide various cosmetic properties, including smoothness, shine, softness, flexibility, lightness, a natural feel and good detangling properties.

[0005] However, with increasing regulations regarding the use of raw materials, particularly silicones, cosmetic companies are looking for alternative cosmetic formulations to replace conventional cyclopentasiloxane-based serums. Cosmetic companies are seeking to offer compliant and suitable formulations while retaining the cosmetic sensory benefits.

[0006] However, most formulations result in compositions with insufficient cosmetic sensory benefits, particularly in terms of anti-frizz and hair conditioning properties. Indeed, the hair remains dull and difficult to style.

[0007] There is therefore a need to develop cosmetic compositions, particularly leave-in compositions, which provide superior anti-frizz, curl-opening and conditioning properties and provide manageable, smooth, soft and shiny hair.

[0008] The Applicant has now discovered that a composition containing at least one silicone of specific formula, at least one aminosilicone, at least one particular copolymer, and at least one polyol, makes it possible to obtain products which offer excellent cosmetic sensory benefits to the hair. In particular, the hair treated with the compositions according to the invention is smooth, soft, shiny, very easy to style and has good anti-frizz properties. Disclosure of the invention

[0009] The present invention relates to a cosmetic composition comprising:

[0010] (a) at least one silicone of formula (X) as defined below;

[0011] (b) at least one aminosilicone and

[0012] (c) at least one copolymer comprising at least one acid monomer 2-acrylamido-2-methylpropanesulfonic acid, at least one monomer with a hydrophobic group and at least one ethylenically unsaturated monomer which does not comprise any hydrophobic group and

[0013] (d) at least one polyol;

[0014] The composition of the invention makes it possible to give the hair good cosmetic properties, such as smoothing properties, shine, softness, flexibility, lightness, a natural feel and good detangling and manageability properties. In addition, the composition is clear and transparent and has a pleasant texture which makes it easier to apply.

[0015] An object of the present invention relates to a cosmetic process for treating keratin fibers comprising the step of applying said cosmetic composition to the keratin fibers.

[0016] An object of the present invention also relates to the use of said cosmetic composition for treating keratin fibers, in particular human keratin fibers such as hair.

[0017] Another object of the present invention relates to a dropper device suitable for applying said cosmetic composition to keratin fibers such as hair and delivering said composition drop by drop.

[0018] Other objects, characteristics, aspects and advantages of the invention will appear even more clearly on reading the description and the examples which follow.

[0019] In the following text, unless otherwise stated, the limits of a range of values ​​are included in this range, in particular in the expressions “between” and “ranging from ... to ... ».

[0020] Furthermore, the expression "at least one" used in the present description is equivalent to the expression "one or more".

[0021] “Cosmetically acceptable” means that the article in question is compatible with any keratinous material. For example, “cosmetically acceptable medium” means a medium that is compatible with any keratinous substrate, and in particular human hair.

[0022] “Conditioning” as used herein means imparting to at least one fiber ke ratinic at least one property selected from combability, manageability, moisture retention, luster, shine, smoothness and softness. Conditioning condition could be assessed by measuring and comparing, for example, the surface condition of treated and untreated hair in terms of average maximum force (newton) using a sliding bench.

[0023] “Silicone compound” as used herein includes, for example, silanes, siloxanes and organosiloxanes. Silicone (a)

[0024] According to the present invention, the composition comprises at least one silicone (a) of formula (X) below:

[0025] where:

[0026] R24, which is identical or different, denotes a C1-C10 alkyl radical, preferably a C1-C4 alkyl radical, even more preferably a methyl radical;

[0027] R26, which is the same or different, denotes an aryl group, since this aryl group may comprise one or more optionally substituted aryl rings;

[0028] R25, identical or different, denotes R26, R24 or -OSi(R24)3;

[0029] t varies from 0 to 1000; preferably t is equal to 0;

[0030] u varies from 1 to 1000; preferably, u varies from 1 to 10;

[0031] and the sum of t+u can vary from 1 to 2000; preferably from 1 to 10.

[0032] Substituents of aryl groups may be alkyl, alkenyl, acyl, ketone, halogen (e.g., Cl and Br) or amine groups. Examples of aryl groups are phenyl, a phenyl group substituted by C1-C5 alkyl radicals or C1-C5 alkenyl radicals such as alkylphenyl, methylphenyl, ethylphenyl or vinylphenyl, and mixtures thereof.

[0033] R26 preferably denotes an unsubstituted aryl group.

[0034] R24 preferably denotes a methyl radical.

[0035]

[0036]

[0037]

[0038]

[0039]

[0040] R26 preferably denotes a phenyl, naphthyl, benzyl or phenethyl radical, more preferably a phenyl radical. R25 preferably denotes a methyl, phenyl radical or an -OSi(CH3)3 radical. Preferably, all R24 denote a methyl radical, and R26 denotes a phenyl, naphthyl, benzyl or phenethyl radical, more preferably a phenyl radical; and R25 denotes a methyl radical, a phenyl or a -OSi(CH 3 ) 3 radical; and preferably t is equal to 0 and u varies from 1 to 10. More specifically, the sum t+u varies from 1 to 1000. Among the silicones of formula (X) as defined above, it is possible to use, for example, example (INCI names): - phenyl trimethicone: where u varies from 1 to 10, 11

[0041] preferably, u is 1 or - diphenyl dimethicone: WHERE U 't' varies from 1 to 10 and t varies from 1 to 10, preferably, u and t are equal to 1 or

[0042] - phenylmethicone: where u varies from 1 to CK-, 10, preferably, u is equal to 1.

[0043] Examples of these compounds include those marketed by the company Bayer under the name Baysilone Fluid PD5 Oil, by the company Dow Corning under the name Dow Corning 556 Fluid, by Rhône-Poulenc under the names Mirasil DPDM, Rhodorsil Oil 510 V 100, Rhodorsil Oil 550, Rhodorsil Oil 510V500, or Rhodorsil Oil 710, or by the company Wacker under the names Wacker Belsil PDM 20, PDM 200 or PDM 1000.

[0044] In a preferred embodiment, the at least one silicone (a) according to the invention is phenyl trimethicone.

[0045] Advantageously, the total amount of silicone(s) (a) in the composition ranges from 1 to 40% by weight, preferably from 1 to 30% by weight, more preferably from 2 to 20% by weight, even more preferably from 2.5 to 15% by weight, better still from 3 to 10% by weight, better still from 4 to 6% by weight, relative to the total weight of the composition.

[0046] Advantageously, the total amount of phenyl trimethicone in the composition ranges from 1 to 40% by weight, preferably from 1 to 30% by weight, more preferably from 2 to 20% by weight, even more preferably from 2.5 to 15% by weight, better still from 3 to 10% by weight, better still from 4 to 6% by weight, relative to the total weight of the composition. Amino-silicone (b)

[0047] According to the present invention, the composition comprises at least one aminosilicone (b). The term "aminosilicone" designates any silicone including at least one primary, secondary or tertiary amine or a quaternary ammonium group.

[0048] The weight-average molecular masses of these aminosilicones can be measured by gel permeation chromatography (GPC) at room temperature (25 °C), in polystyrene equivalent. The columns used are q styragel columns. The eluent is THF and the flow rate is 1 ml / min. 200 ql of a 0.5% by weight silicone solution in THF are injected. Detection is carried out by refractometry and UV.

[0049] Preferably, the amino silicone(s) (b) which may be used in the context of the invention is (are) chosen from:

[0050] a) polysiloxanes corresponding to formula (A): (HAS)

[0051] in which x' and y' are integers such that the average molecular weight by weight (Mw) is between 5000 and 500,000 g / mol approximately;

[0052] b) aminosilicones corresponding to formula (B):

[0053] R'aG3 a-Si(OSiG2)n-(OSiGbR'2 b)mO-SiG3 a-R'a (B)

[0054] where:

[0055] - G, which may be the same or different, denotes a hydrogen atom or a phenyl, OH, CrC8 alkyl, e.g. methyl, or CrC8 alkoxy, e.g. methoxy,

[0056] - a and a', which may be the same or different, denote 0 or an integer from 1 to 3, in particular 0, provided that at least one of a and a' is equal to zero,

[0057] - b denotes 0 or 1, in particular, 1,

[0058] - m and n are numbers such that the sum (n + m) ranges from 1 to 2000 and, in particular, from 50 to 150, n possibly designating a number from 0 to 1999 and in particular from 49 to 149, and m possibly designating a number from 1 to 2000 and in particular from 1 to 10;

[0059] - R', which may be identical or different, denotes a monovalent radical of formula - CqH2qL in which q is a number ranging from 2 to 8 and L is an optionally quaternized amine group selected from the following groups:

[0060] • -NR"-QN(R") 2,

[0061] • -N(R")2

[0062] • -N+(R")3 A,

[0063] • -N+H(R")2 A,

[0064] • -N+H2(R") A,

[0065] • -NR"-Q-N+(R")H2 A,

[0066] • -NR"-Q-N+(R")2H A and

[0067] • -NR"-Q-N+(R")3 A ,

[0068] in which R", which may be identical or different, denotes hydrogen, phenyl, benzyl or a saturated monovalent hydrocarbon radical, for example a C1-C20 alkyl radical; Q denotes a linear or branched group of formula CrH2r, r being an integer ranging from 2 to 6, preferably from 2 to 4; and A- represents a cosmetically acceptable halide anion, in particular a halide such as fluorine, chloride, bromide or iodide.

[0069] Preferably, the aminosilicone(s) (b) are chosen from aminosilicones of formula (B). Preferably, the aminosilicones of formula (B) are chosen from aminosilicones corresponding to formulas (C), (D), (E), (F) and / or (G) below.

[0070] According to a first embodiment, the aminosilicones corresponding to formula (B) are chosen from silicones called “trimethylsilyl amodimethicone”, corresponding to formula (C): _m

[0071] in which m and n are numbers such that the sum (n + m) ranges from 1 to 2000 and, in particular, from 50 to 150, n possibly designating a number from 0 to 1999 and in particular from 49 to 149, and m possibly designating a number from 1 to 2000 and in particular from 1 to 10.

[0072] According to a second embodiment, the aminosilicones corresponding to formula (B) are chosen from the silicones of formula (D) below: CH- R3 CH, 1 Si ■0 Si — -O—St-----: TO 1 -œ-33 1 1 1 CH CH. 1 CH, 5 • HH t'CH.H '1 1 m

[0073] where:

[0074] - m and n are numbers such that the sum (n + m) ranges from 1 to 1000, in particular 50 to 250 and, more particularly, from 100 to 200; n optionally denotes a number from 0 to 999, in particular from 49 to 249 and, more particularly, from 125 to 175, and m optionally denotes a number from 1 to 1000, in particular from 1 to 10 and, more particularly, from 1 to 5 and

[0075] - Ri, R2 and R3, which may be identical or different, represent a radical hydroxyl or alkoxy in C1-C4, in Zoins one of the radicals R1 to R3 denoting an alkoxy radical, preferably a methoxy radical.

[0076] The hydroxy / alkoxy molar ratio preferably ranges from 0.2:1 to 0.4:1, and preferably from 0.25:1 to 0.35:1 and is more particularly equal to 0.3:1.

[0077] The weight average molecular mass (Mw) of these silicones preferably ranges from 2000 to 1,000,000 g / mol and, more particularly, from 3,500 to 200,000.

[0078] According to a third embodiment, the aminosilicones corresponding to formula (B) are chosen from the silicones of formula (E) below:

[0079] where:

[0080] - p and q are numbers such that the sum (p + q) goes from 1 to 1000, in particular, from 50 to 350 and, more particularly, from 150 to 250; p optionally denotes a number from 0 to 999, in particular, from 49 to 349 and, more particularly, from 159 to 239, and q optionally denotes a number from 1 to 1000, in particular, from 1 to 10 and, more particularly, from 1 to 5 and

[0081] - Ri and R2, which are different, represent a C1-C4 alkoxy or hydroxyl radical at least one of the radicals Ri or R2 designating a methoxyn radical, preferably a methoxy radical

[0082] The hydroxy / alkoxy molar ratio generally varies from 1:0.8 to 1:1.1, preferably from 1:0.9 to 1:1 and, more particularly, is equal to 1:0.95.

[0083] The weight average molecular weight (Mw) of the silicone preferably ranges from 2000 to 200,000, even more particularly from 5000 to 100,000 and more particularly from 10,000 to 50,000.

[0084] Commercial products comprising silicones of structure (D) or (E) may include in their composition one or more other aminosilicones, the structure of which is different from that of formula (D) or (E).

[0085] A product containing aminosilicones of structure (D) is marketed by the company Wacker under the name Belsil® ADM 652.

[0086] A product containing aminosilicones of structure (E) is marketed by Wacker under the name Fluid WR 1300® or under the name Belsil® ADM LOG 1.

[0087] When these aminosilicones are used, a particularly advantageous embodiment consists of using them in the form of an oil-in-water emulsion. The oil-in-water emulsion may comprise one or more surfactants. The surfactants may be of any nature but are preferably cationic and / or non-ionic. The number-average size of the silicone particles in the emulsion generally ranges from 3 nm to 500 nm. Preferably, in particular in the form of aminosilicones of formula (E), microemulsions are used whose average particle size ranges from 5 nm to 60 nm (inclusive) and, more particularly, from 10 nm to 50 nm (inclusive). Thus, use may be made according to the invention of aminosilicone microemulsions of formula (E) marketed under the names Finish CT 96 E® or SLM 28020® by the Wacker company.

[0088] According to a fourth embodiment, the aminosilicones corresponding to formula (B) are chosen from the silicones of formula (F) below: CH, ï “ CH, 1 __H Qi U ol 1 ï" ■R 1 NH NH2 CH, m. (F)

[0089] where:

[0090] - m and n are numbers such that the sum (n + m) ranges from 1 to 2000 and, in particular, from 50 to 150, n possibly designating a number from 0 to 1999 and in particular from 49 to 149, and m possibly designating a number from 1 to 2000 and in particular from 1 to 10;

[0091] - A denotes a linear or branched alkylene radical containing from 4 to 8 atoms of carbon and preferably 4 carbon atoms. This radical is preferably linear.

[0092] The weight average molecular mass (Mw) of these aminosilicones preferably ranges from 2000 to 1,000,000 and even more particularly from 3500 to 200,000.

[0093] Another silicone corresponding to formula (B) is, for example, the Xiameter MEM 8299 emulsion from Dow Corning (INCI name: amodimethicone and trideceth-6 and cetrimonium chloride).

[0094] According to a fifth embodiment, the aminosilicones corresponding to formula (B) are chosen from the silicones of formula (G) below:

[0095] where:

[0096] - m and n are numbers such that the sum (n + m) ranges from 1 to 2000 and, in particular, from 50 to 150, n possibly designating a number from 0 to 1999 and in particular from 49 to 149, and m possibly designating a number from 1 to 2000 and in particular from 1 to 10;

[0097] - A denotes a linear or branched alkylene radical containing from 4 to 8 atoms of carbon and preferably 4 carbon atoms.

[0098] The weight average molecular mass (Mw) of these aminosilicones preferably ranges from 500 to 1,000,000 and even more particularly from 1,000 to 200,000.

[0099] A silicone corresponding to this formula is, for example, the amino fluid DC2-8566 from Dow Corning;

[0100] c) aminosilicones corresponding to the formula (H):

[0101] where:

[0102] - R5 represents a monovalent hydrocarbon radical containing from 1 to 18 atoms of carbon, and in particular a C1-C18 alkyl or C2-C18 alkenyl radical, for example a methyl;

[0103] - R6 represents a divalent hydrocarbon radical, in particular an alkylene radical in C1-C18 or a divalent CrCi8 alkyleneoxy radical, for example CrC8, linked to Si via a SiC bond;

[0104] - Q is an anion, such as a halide ion, in particular a chloride ion, or a salt organic acid, especially an acetate;

[0105] - r represents an average statistical value ranging from 2 to 20 and, in particular, from 2 to 8 ;

[0106] - s represents an average statistical value ranging from 20 to 200 and, in particular, from 20 to 50.

[0107] These aminosilicones are notably described in US patent 4,185,087.

[0108] - d) quaternary ammonium silicones of formula (I): R_ 11 CH OH- CH.- N -R* - I R7

[0109] where:

[0110] - R7, which may be identical or different, represent a hydrocarbon radical monovalent containing from 1 to 18 carbon atoms, and, in particular, a C1-C18 alkyl radical, a C2-C18 alkenyl radical or a cycle comprising 5 or 6 carbon atoms, for example methyl;

[0111] - R6 represents a divalent hydrocarbon radical, in particular an alkylene radical in Ci-Cig or a divalent CrCi8 alkyleneoxy radical, for example CrC8, linked to Si via a SiC bond;

[0112] - R8, which may be the same or different, represent a hydrogen atom, a monovalent hydrocarbon radical containing from 1 to 18 carbon atoms, and, in particular, a C1-C18 alkyl radical, a C2-C18 alkenyl radical or a -R6 -NHCOR7 radical;

[0113] - X is an anion such as a halide ion, in particular chloride, or an acid salt organic, especially acetate and

[0114] - r represents an average statistical value ranging from 2 to 200 and, in particular, from 5 to 100.

[0115] These silicones are described, for example, in patent application EP-A 0 530 974;

[0116] e) aminosilicones of formula (J): If — R5

[0117] where:

[0118] - Ri, R2, R3 and R4, which may be identical or different, denote a radical C1-C4 alkyl or a phenyl group,

[0119] - R5 denotes a C1-C4 alkyl radical or a hydroxyl group,

[0120] - n is an integer in the range 1 to 5,

[0121] - m is an integer in the range 1 to 5 and

[0122] - x is chosen such that the amine index is 0.01 to 1 meq / g;

[0123] f) multiblock polyoxyalkylenated aminosilicones, of the (AB)n type, A being a block of polysiloxane and B being a polyoxyalkylene block comprising at least one amine group.

[0124] Said silicones are preferably formed from repeating units having the following general formulas:

[0125] [-(SiMe2O)xSiMe2-R -N(R”)- R'-O(C2H4O)a(C3H6O)b-R'-N(H)-R-]

[0126] or alternatively

[0127] [-(SiMe2O)xSiMe2 - R -N(R”)- R' - O(C2H4O)a(C3H6O)b -]

[0128] where:

[0129] - a is an integer greater than or equal to 1, preferably ranging from 5 to 200 and, more particularly, from 10 to 100;

[0130] - b is an integer between 0 and 200, preferably ranging from 4 to 100 and, more specifically, between 5 and 30;

[0131] - x is an integer ranging from 1 to 10,000 and, more particularly, from 10 to 5000;

[0132] - R" is a hydrogen atom or a methyl;

[0133] - R, which may be identical or different, represent a hydrocarbon radical divalent linear or branched C2-Ci2, optionally comprising one or more heteroatoms such as oxygen; preferably, R denotes an ethylene radical, a linear or branched propylene radical, a linear or branched butylene radical or a CH2 CH2CH2OCH2CH(OH)CH2- radical; preferably, R denotes a CH2CH2CH2OCH2 CH(OH)CH2- radical;

[0134] R', which may be identical or different, represent a hydrocarbon radical divalent linear or branched C2-Ci2 optionally including one or more heteroatoms such as oxygen; preferably, R' denotes an ethylene radical, a linear or branched propylene radical, a linear or branched butylene radical, or a CH 2CH2CH2OCH2CH(OH)CH2- radical; preferentially R' denotes -CH(CH3)-CH2-,

[0135] The siloxane blocks preferably represent between 50 mol% and 95 mol% of the total weight of the silicone, more particularly from 70 mol% to 85 mol%.

[0136] The amine content is preferably between 0.02 and 0.5 meq / g of copolymer in a 30% solution of dipropylene glycol, more particularly between 0.05 and 0.2.

[0137] The weight average molecular weight (Mw) of the silicone is preferably between 5,000 and 1,000,000 and, more particularly, between 10,000 and 200,000.

[0138] Mention may in particular be made of silicones marketed under the name Silsoft A-843 or Silsoft A+ by Momentive.

[0139] g) and mixtures thereof.

[0140] Preferably, the aminosilicones of formula (B) are chosen from the amino-silicones corresponding to formula (E).

[0141] Preferably, the composition according to the invention comprises at least one amino-silicone (b) having the INCI name amodimethicone, preferably introduced in the form of an emulsion or a microemulsion with surfactants.

[0142] Preferably, the composition according to the invention comprises at least one amino-silicone (b) having the INCI name amodimethicone as an emulsion or microemulsion with surfactants, having the INCI names trideceth-5 and trideceth-10.

[0143] Preferably, the composition comprises aminosilicone(s) (b) chosen from amodimethicones, preferably chosen from aminosilicones of formulae (C), (D), (E), (G) and their mixtures, more preferably chosen from aminosilicones of formula (E) and their mixtures.

[0144] Advantageously, the total amount of aminosilicone(s) (b) in the composition ranges from 0.01 to 30% by weight, preferably from 0.05 to 20% by weight, better still from 0.1 to 10% by weight, even better still from 0.5 to 6% by weight, even better still from 1 to 4% by weight. weight relative to the total weight of the composition.

[0145] Advantageously, the total amount of alkali metal carbonate(s) a) ranges from 0.01 to 30% by weight, preferably from 0.05 to 20% by weight, better still from 0.1 to 10% by weight, better still from 0.5 to 6% by weight, better still from 1 to 4% by weight relative to the total weight of the composition. Copolymer (c)

[0146] According to the present invention, the composition comprises at least one copolymer (c) comprising at least one 2-acrylamido-2-methylpropanesulfonic acid monomer, at least one monomer with a hydrophobic group and at least one ethylenically unsaturated monomer which does not comprise any hydrophobic group.

[0147] In the context of the present invention, the term “hydrophobic group” means a branched or unbranched, saturated or unsaturated hydrocarbon fatty chain comprising from 6 to 50 carbon atoms.

[0148] The copolymer(s) (c) may be crosslinked in the presence of a crosslinking agent.

[0149] The term "crosslinked copolymer" refers to a non-linear copolymer that exists as a three-dimensional network that is insoluble in water but swellable in water, resulting in the production of a chemical gel.

[0150] The crosslinking agent is chosen from polyolefinically unsaturated compounds commonly used for crosslinking polymers obtained by radical polymerization.

[0151] The crosslinking agent is more particularly chosen from ethylene glycol dimethacrylate, tetraallyloxyethane, ethylene glycol diacrylate, diallylurea, triallylamine, trimethylolpropane triacrylate or methylenebisacrylamide or a mixture of these compounds.

[0152] Preferably, the crosslinking agent is trimethylolpropane triacrylate.

[0153] Preferably, the copolymer(s) (c) are crosslinked by a crosslinking agent, preferably trimethylolpropane triacrylate.

[0154] The 2-acrylamido-2-methylpropanesulfonic acid monomer(s) of the copolymer (c) contained in the composition according to the invention are in free form or are partially or completely neutralized by an inorganic base (sodium hydroxide, potassium hydroxide or aqueous ammonia) or an organic base, such as mono-, di- or triethanolamine, an aminomethylpropanediol, N-methylglucamine, basic amino acids, such as arginine and lysine, and the mixture of these compounds.

[0155] According to the invention, the 2-acrylamido-2-methylpropanesulfonic acid monomers preferably correspond to the following general formula (1):

[0156] (1)

[0157] Where X + denotes a cationic counterion, in particular an alkali metal or an alkaline earth metal, or an ammonium, preferably ammonium, or a mixture of cations; Ri denotes a hydrogen atom or a linear or branched C1-C6 alkyl radical such as methyl, and Ri preferably denotes a hydrogen atom.

[0158] Preferably, the 2-acrylamido-2-methylpropanesulfonic acid monomer(s) according to the invention are partially or completely salified in the form of the ammonium salt.

[0159] Preferably, the 2-acrylamido-2-methylpropanesulfonic acid monomer(s) according to the invention are completely salified, preferably in the form of the ammonium salt.

[0160] AMPS® may be cited as an example of acid monomer(s) 2-acrylamido-2-methylpropanesulfonic acid.

[0161] The copolymer(s) (c) comprise at least one monomer with a hydrophobic group which is preferably an ethylenically unsaturated monomer comprising at least one fatty hydrocarbon chain comprising from 6 to 50 carbon atoms, preferably from 6 to 22 and more particularly from 12 to 18 carbon atoms.

[0162] The monomer with a hydrophobic group is preferably chosen from acrylates or acrylamides of formula (2):

[0163] (2)

[0164] in which Ri denotes a hydrogen atom or a linear or branched C1-C6 alkyl radical, preferably methyl; Y denotes O or NH; R2 denotes a hydrocarbon radical comprising from 6 to 50 carbon atoms and more preferably from 6 to 22 carbon atoms and even more preferably from 12 to 18 carbon atoms; x denotes a number ranging from 0 to 100.

[0165] According to a particular embodiment of the invention, in formula (2), Y denotes an oxygen atom.

[0166] According to a particular embodiment of the invention, in formula (2), the group Ri represents a methyl.

[0167] According to a particular embodiment of the invention, x represents an integer between 3 and 25, and x is preferably equal to 4.

[0168] According to a particular embodiment of the invention, in formula (2), the group R2 represents an alkyl radical comprising from 12 to 18 carbon atoms.

[0169] According to an even more preferred embodiment of the invention, in formula (2), Y denotes an oxygen atom, the group Ri represents a methyl, the group R2 represents an alkyl radical comprising from 12 to 18 carbon atoms, x represents an integer between 3 and 25 and x is preferably equal to 4.

[0170] According to a particular embodiment of the invention, the hydrophobic monomer of formula (2) is tetraethoxylated lauryl methacrylate (4EO), corresponding to the compound of formula (2) in which the group Y denotes O, the group R2 represents and the alkyl radical comprising 12 carbon atoms and x is equal to 4.

[0171] Preferably, the monomer with a hydrophobic group is tetraethoxylated lauryl methacrylate.

[0172] According to a particular embodiment of the invention, the copolymer (c) may comprise at least one monomer of formula (2) in which x is equal to 0, Y representing an oxygen atom, the group Ri representing a methyl and the group R2 representing an alkyl radical comprising from 12 to 18 carbon atoms.

[0173] In this embodiment, the monomer with a hydrophobic group is preferably lauryl methacrylate.

[0174] According to a particular embodiment, the copolymer (c) comprises at least one monomer of formula (2) in which x is equal to 0, Y preferably denoting an oxygen atom, the group Ri representing a methyl, and the group R2 representing an alkyl radical comprising from 12 to 18 carbon atoms, and at least one monomer of formula (2) in which Y denotes an oxygen atom, the group Ri represents a methyl, the group R2 represents an alkyl radical comprising from 12 to 18 carbon atoms, x represents an integer between 3 and 25 and x is preferably equal to 4.

[0175] Preferably, the copolymer (c) comprises, as monomers with a hydrophobic group, lauryl methacrylate and tetraethoxylated lauryl methacrylate.

[0176] The copolymer(s) (c) also comprises / comprise at least one ethylenically unsaturated monomer, which does not comprise / comprise any hydrophobic group, preferably corresponding to the following general formula (3): CT R,

[0177] (3)

[0178] in which Ri denotes a hydrogen atom or a linear or branched C1-C4 alkyl radical> Ri preferably denotes a hydrogen atom, R2 denotes a linear or branched C1-C4 alkyl radical and R3 denotes a linear or branched C1-C4 alkyl radical and R2 and R3 preferably denotes a methyl.

[0179] The ethylenically unsaturated monomer which does not comprise any hydrophobic group is selected from (meth)acrylamides such as acrylamide, (meth)acrylic acids and (meth)acrylate esters thereof, such as 2-hydroxyethyl acrylate, vinylpyrrolidones, N-(C i-C4)alkylacrylamides, and N,N-di(C 1-C4 )alkylacrylamides such as N,N-dimethylacrylamide.

[0180] Preferably, the ethylenically unsaturated monomer which does not comprise any hydrophobic group is N,N-dimethylacrylamide.

[0181] Preferably, the copolymer (c) is chosen from copolymers of 2-acrylamido-2-methylpropanesulfonic acid, preferably completely salified, of N,N-dimethylacrylamide, of tetraethoxylated lauryl methacrylate and of lauryl methacrylate, preferably crosslinked, such as, for example, the copolymer marketed under the name Sepimax Zen® by SEPPIC, with the INCI name Polyacrylate crosspolymer-6.

[0182] Advantageously, the total amount of copolymer(s) (c) comprising at least one 2-acrylamido-2-methylpropanesulfonic acid monomer, at least one monomer with a hydrophobic group and at least one ethylenically unsaturated monomer which does not comprise any hydrophobic group in the composition ranges from 0.01 to 20% by weight, preferably from 0.001 to 15% by weight, better still from 0.01 to 10% by weight, even better still from 0.05 to 5% by weight, better still from 0.1 to 2% by weight, even better still from 0.1 to 1% by weight, even better still from 0.2 to 0.6% by weight relative to the total weight of the composition.

[0183] Advantageously, the total amount of polyacrylate crosspolymer-6 in the composition ranges from 0.001 to 20% by weight, preferably from 0.001 to 15% by weight, more preferably from 0.01 to 10% by weight, even more preferably from 0.05 to 5% by weight, better still from 0.1 to 2% by weight, better still from 0.1 to 1% by weight, relative to the total weight of the composition. Polyol (d)

[0184] The composition according to the present invention comprises at least one polyol (d).

[0185] The term "polyol" herein means an alcohol having two or more hydroxy groups, and does not include a saccharide or a derivative thereof. The derivative of a saccharide includes a sugar alcohol obtained by reducing one or more carbonyl groups of a saccharide, as well as a saccharide or a sugar alcohol in which the hydrogen atom(s) in one or more hydroxy groups thereof has been replaced by at least one substituent such as an alkyl group, a hy- droxyalkyl, an alkoxy group, an acyl group or a carbonyl group.

[0186] The polyol (d) may be a C2.12 polyol, preferably a C2_9 polyol, more preferably a C2_6 polyol comprising at least 2 hydroxy groups, and preferably 2 to 5 hydroxy groups.

[0187] The polyol (d) may be a natural or synthetic polyol. The polyol may have a linear, branched or cyclic molecular structure.

[0188] The polyol (d) may be chosen from glycerins and derivatives thereof, as well as glycols and derivatives thereof and mixtures thereof. The polyol (d) may be chosen from the group consisting of glycerin, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene, butylene glycol, pentylene glycol, hexylene glycol, 1,2-propanediol, 1,3-butanediol and 1,5-pentanediol and mixtures thereof.

[0189] It is preferable that the polyol b) has 3 or more carbon atoms and is selected from the group consisting of glycerin, ethylene glycol, poly(ethylene glycol), propylene glycol, dipropylene glycol, butylene glycol, pentylene glycol, hexylene glycol and a mixture thereof.

[0190] Preferably, the polyol(s) (d) is (are) selected from C212 polyols, preferably C2-9 polyols, more preferably C2-6 polyol, comprising at least 2 hydroxy groups, and preferably from 2 to 5 hydroxy groups and mixtures thereof, more preferably from the group consisting of glycerin and its derivatives, and glycols and their derivatives, and mixtures, even more preferably from the group consisting of glycerin, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, butylene glycol, pentylene glycol, hexylene glycol, 1,2-propanediol, 1,3-propanediol and 1,5-pentanediol and mixtures thereof, more preferably from the group consisting of glycerin, propylene glycol and mixtures thereof.

[0191] Advantageously, the total amount of polyol(s) (d) in the composition ranges from 5 to 60% by weight, preferably from 10 to 55% by weight, more preferably from 15 to 50% by weight, even more preferably from 20 to 45% by weight, better still from 25 to 45% by weight, better still from 30 to 45% by weight, relative to the total weight of the composition.

[0192] Advantageously, the total amount of polyol(s) (d) selected from C2-6 polyols in the composition ranges from 5 to 60% by weight, preferably from 10 to 55% by weight, more preferably from 15 to 50% by weight, even more preferably from 20 to 45% by weight, better still from 25 to 45% by weight, better still from 30 to 45% by weight, relative to the total weight of the composition. Silicone (e)

[0193] The composition according to the present invention may also include at least one silicone (e) different from the silicones (a) and the aminosilicones (b) as defined previously.

[0194] Silicones (e) can be solid or liquid at 25°C and at atmospheric pressure (1.013x10 5 Pa), and volatile or non-volatile.

[0195] The silicones (e) which can be used can be soluble or insoluble in the composition according to the invention; they can be in the form of oil, wax, resin or gum.

[0196] Silicones are notably described in detail in Walter Noll's Chemistry and Technology of Silicones (1968), Academie Press.

[0197] The composition may contain one or more silicones which are liquid at 25°C and at atmospheric pressure (1.013x10 5 Pa).

[0198] The volatile silicones may be chosen from those having a boiling point of between 60°C and 260°C (at atmospheric pressure) and more particularly from linear polydialkylsiloxanes containing 2 to 9 silicon atoms, which generally have a viscosity less than or equal to 5x10 6m2 / s at 25°C, such as deca-methyltetrasiloxane.

[0199] Other silicones belonging to this category are described in the article published in Cosmetics and Toiletries, Vol. 91, Jan. 76, pages 27-32 - Todd & Byers Volatile silicone fluids for cosmetics; we can cite the product marketed under the name SH 200 by the company Toray Silicone.

[0200] Among the non-volatile silicones, mention may be made, alone or as a mixture, of polydialkylsiloxanes and in particular polydimethylsiloxanes (PDMS), silicone gums and resins, as well as organopolysiloxanes (or organomodified polysiloxanes, or alternatively organomodified silicones) which are polysiloxanes including in their structure one or more organofunctional groups, generally attached via a hydrocarbon group, and preferably chosen from alkoxy groups and polyoxyethylene or polyoxypropylene groups.

[0201] Among the organomodified silicones, we can also cite polyorganosiloxanes, in particular:

[0202] - polyoxyethylene and / or polyoxypropylene groups optionally comprising C6-C24 alkyl groups, such as dimethicone copolyols, and in particular those marketed by Dow Corning under the name DC1248 or Silwet® L 722, L 7500, L 77 and L 711 oils from Union Carbide; or alternatively (C12)alkylmethicone copolyols, and in particular those marketed by Dow Corning under the name Q2-5200;

[0203] - thiol groups, such as the products marketed under the names GP 72 A and Genesee GP 71;

[0204] - alkoxylated groups, such as the product marketed under the name Silicone Copolymer F-755 by SWS Silicones and Abil Wax® 2428, 2434 and 2440 by Goldschmidt.

[0205] - hydroxyl groups, for example polyorganosiloxanes carrying a function hydroxyalkyl;

[0206] - acyloxyalkyl groups, such as the polyorganosiloxanes described in the patent US-A-4,957,732;

[0207] - anionic groups of the carboxylic acid type, as described, for example, in EP 186 507, or of the alkylcarboxylic type, such as the product X-22-3701E from the company Shin-Etsu; or as a variant of the 2-hydroxyalkylsulfonate or 2-hydroxyalkylthiosulfate type, such as the products marketed by the company Goldschmidt under the names Abil® S201 and Abil® S01-0.

[0208] The silicones may also be chosen from polydialkylsiloxanes, among which mention may be made mainly of polydimethylsiloxanes containing trimethylsilyl end groups. Among these polydialkylsiloxanes, mention may be made of the following commercial products:

[0209] - Silbione® oils from the 47 and 70 047 ranges or Mirasil® oils commercially available marketed by Rhodia, for example oil 70 047 V 500 000;

[0210] - oils from the Mirasil® range marketed by the company Rhodia;

[0211] - Dow Corning's 200 range oils, such as DC200 with a viscosity of 60,000 mm2 / s

[0212] - General Electric Viscasil® oils and certain oils in the SF range (SF 96, SF 18) from General Electric.

[0213] Mention may also be made of polydimethylsiloxanes carrying di-methylsilanol end groups known as dimethiconol (CTFA), such as the oils of the Rhodia 48 range.

[0214] In this category of polydialkylsiloxanes, we can also cite the products marketed under the names Abil Wax® 9800 and 9801 by the company Goldschmidt, which are poly(Cl-C20) dialkylsiloxanes.

[0215] The products which can be used more particularly in accordance with the invention are mixtures such as:

[0216] - mixtures formed from a polydimethylsiloxane with a chain to ter hydroxyl or dimethiconol (CTFA) and cyclic polydimethylsiloxane, also known as cyclomethicone (CTFA), such as the product Q2-1401 1401 marketed by Dow Corning;

[0217] - mixtures formed from a polydimethylsiloxane with a chain to ter hydroxyl or dimethiconol (CTFA), and from a polydimethylsiloxane, also known as dimethicone (CTFA), such as the Xiameter® product PMX-1503 Fluid marketed by Dow Corning.

[0218] Preferably, the composition further comprises at least one silicone (e) different from the silicones (a) and the aminosilicones (b), and better still at least two different silicones (e).

[0219] Preferably, the silicone(s) (e) chosen from:

[0220] - polydialkylsiloxanes, more preferably among polydimethylsiloxanes, even more preferably among polydimethylsiloxanes bearing trimethylsilyl end groups,

[0221] - hydroxy-terminated chain polydimethylsiloxanes (dimethiconol), and

[0222] - their mixtures.

[0223] Better still, the composition comprises one or more polydimethylsiloxanes and one or more dimethiconols.

[0224] Advantageously, the total amount of silicone(s) (a) in the composition ranges from 0.1 to 45% by weight, preferably from 1 to 40% by weight, more preferably from 5 to 35% by weight, even more preferably from 10 to 35% by weight, better still from 15 to 30% by weight, better still from 20 to 25% by weight, relative to the total weight of the composition.

[0225] Advantageously, the total quantity of silicone(s) (e) selected from polydimethylsiloxanes, dimethiconols and their mixtures in the composition ranges from 0.1 to 45% by weight, preferably from 1 to 40% by weight, better still from 5 to 35% by weight, even better still from 10 to 35% by weight, even better still from 15 to 30% by weight, even better still from 20 to 25% by weight, relative to the total weight of the composition.

[0226] Preferably, the silicone (e) is not chosen from cyclic polydialkylsiloxanes including from 3 to 7 and in particular 4 to 5 silicon atoms, such as octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane.

[0227] Preferably, the composition does not comprise decamethylcyclopentasiloxane, meaning that the composition comprises less than 0.1% decamethylcyclopentasiloxane, more preferably, the composition comprises 0% decamethylcyclopentasiloxane. Alkane

[0228] The composition according to the present invention may also include at least one alkane, preferably at least one volatile alkane.

[0229] More particularly, the volatile alkanes may have a flash point ranging from 40°C to 102°C, preferably ranging from 40°C to 55°C and most preferably ranging from 40°C to 50°C.

[0230] The alkanes may in particular be chosen from alkanes containing from 8 to 16 carbon atoms, and their mixtures, and in particular:

[0231] - branched C8-Ci6 alkanes such as C8-Ci6 isoalkanes (also known under the name of isoparaffins), isododecane, isodecane and isohexadecane, and, for example, oils marketed under the trade name Isopar or Permethyl,

[0232] (2) linear alkanes, for example n-dodecane (C12) and n-tetradecane (C14), marketed by Sasol under the respective references Parafol 12-97 and Parafol 14-97, as well as their mixtures, the undecane-tridecane mixture, the mixtures of n-undecane (Cl 1) and n-tridecane (Cl3) obtained in examples 1 and 2 of patent application WO 2008 / 155 059 from the company Cognis, and their mixtures,

[0233] Preferably, the composition according to the invention further comprises at least one alkane, preferably chosen from alkanes comprising from 8 to 16 carbon atoms and their mixtures, more preferably chosen from branched C8-Ci6 alkanes, even more preferably from C8-Ci6 isoalkanes such as isododecane, isodecane, isohexadecane and their mixtures, more preferably from isododecane.

[0234] Advantageously, the total amount of alkane(s) in the composition ranges from 0.1 to 25% by weight, preferably from 0.1 to 20% by weight, better still from 0.5 to 15% by weight, better still from 1 to 10% by weight relative to the total weight of the composition.

[0235] The composition according to the invention is preferably aqueous.

[0236] The amount of water may be between 1% and 70% by weight, preferably between 10% and 60% by weight and better still between 15% and 50% by weight, even better still between 20 and 45% by weight relative to the total weight of the composition according to the invention.

[0237] Preferably, the composition according to the present invention comprises: a. at least one silicone of formula (X) selected from the group consisting of phenyl trimethicone, diphenyl dimethicone or phenyl methicone, and mixtures thereof, b. at least one aminosilicone selected from the group consisting of amodimethicones, c. at least one crosslinked polymer of polyacrylate-6, d. at least one polyol is selected from the group consisting of C2-12 polyols, comprising at least 2 hydroxy groups, and preferably from the group consisting of glycerin, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, butylene glycol, pentylene glycol, hexylene glycol, 1,2-propanediol, 1,3-propanediol and 1,5-pentanediol and mixtures thereof. Other ingredients

[0238] The composition according to the present invention may also comprise at least one optional or additional ingredient.

[0239] The optional or additional ingredient(s) may be selected from the group consisting of anionic, nonionic or amphoteric polymers; surfactants anionic, non-ionic or amphoteric; organic or inorganic UV filters; peptides and their derivatives; protein hydrolysates; bulking and penetrating agents; agents for combating hair loss; anti-dandruff agents; natural or synthetic thickeners for water or oils; suspending agents; sequestering agents; colorants; pearlescent agents, pigments, opacifying agents, sunscreen agents; vitamins or provitamins; perfumes; preservatives, co-preservatives, stabilizers and mixtures thereof.

[0240] The amount of the optional or additional ingredient(s) is not limited, but may be from 0.01% to 30% by weight, preferably from 0.1% to 20% by weight, and more preferably from 1% to 10% by weight, relative to the total weight of the composition according to the present invention.

[0241] The composition according to the present invention may be of the leave-in or rinse-out type, preferably of the leave-in type. Use

[0242] The composition according to the present invention may preferably be used as a cosmetic composition. The cosmetic composition may be used to treat keratin fibers. The keratin fibers may be hair, eyebrows, eyelashes and the like.

[0243] In particular, the composition according to the present invention may be intended to be applied to keratin fibers such as hair. Thus, the composition according to the present invention may be used for a cosmetic process for keratin fibers.

[0244] The composition according to the present invention can preferably be used as a cosmetic composition. The cosmetic composition can be used to treat keratin fibers. The keratin fibers can be hair, eyebrows, eyelashes and the like.

[0245] Thus, the present invention also relates to the use of a cosmetic composition as defined above for the treatment of keratin fibers, preferably human keratin fibers, such as hair, eyebrows, eyelashes and the like, even more preferably hair. Process

[0246] In particular, the composition according to the present invention may be intended to be applied to keratin fibers such as hair. Thus, the composition according to the present invention may be used for a cosmetic process for keratin fibers.

[0247] The present invention also relates to a cosmetic process for keratin fibers, preferably hair, comprising the step of applying the com position according to the present invention on keratin fibers.

[0248] The keratin fibers to which the composition according to the present invention has been applied can be left for a suitable time which is required to treat the keratin fibers.

[0249] The composition according to the present invention may or may not be rinsed. When the composition is rinsed, the duration of the treatment is not limited, but it may range from 1 minute to 10 minutes, preferably from 1 minute to 5 minutes.

[0250] Preferably, the composition of the invention is not rinsed.

[0251] The keratin fibers may be treated at room temperature. Alternatively, the keratin fibers may be heated to 15°C to 45°C, preferably to 20°C to 40°C, more preferably to 25°C to 35°C, and even more preferably to 27°C to 35°C, before and / or during and / or after the step of applying the composition according to the present invention to the keratin fibers.

[0252] The keratin fibers to which the composition according to the present invention has been applied may or may not be rinsed, preferably they are not rinsed after application of the composition.

[0253] The method, preferably the cosmetic method, according to the present invention can provide keratin fibers such as hair with improved conditioning and manageability cosmetic effects such as smoothness (e.g., smooth combing even if the keratin fibers are wet, and a smooth feel when the keratin fibers are dry), softness, shine, ease of styling, ease of detangling, and volume control (thus, it can be easy to style the shape of the keratin fibers, due to the anti-frizz properties of the composition according to the present invention). The term "volume reduction" means that the spreading of the keratin fibers is reduced or controlled, and therefore, the styling of the keratin fibers can be well controlled.

[0254] In particular, the method according to the present invention can provide keratin fibers such as hair with a higher level of smoothness, softness, shine, volume control and the like. Device

[0255] An object of the present invention relates to a dropper device suitable for applying the cosmetic composition according to the invention to keratin fibers such as hair and delivering said composition drop by drop.

[0256] In the present description, the terms “drop by drop” and “pipette” are equivalent.

[0257] In one embodiment, the cosmetic composition according to the invention may be packaged in a dropper device suitable for applying said cosmetic composition to keratin fibers, preferably the hair, in which said device comprises a vial, bottle or container containing said cosmetic composition, and a dropper or pipette, and in which it delivers said cosmetic composition drop by drop.

[0258] The drop-by-drop dispensing of the composition allows for controlled dispensing of the composition via a regular sequence of drops rather than uncontrolled jet dispensing. Thus, the drop-by-drop dispensing of the composition allows for quantity control when dispensing the product.

[0259] In one embodiment, the dropper or pipette is adapted to be mounted on the vial, bottle or container via removable assembly means and / or detachable attachment means.

[0260] In some embodiments, the composition is provided in an appropriate amount to the user using a dropper device comprising a vial, bottle or container and a dropper or pipette.

[0261] As used herein, "appropriate amount" means that a sufficient amount of the composition is provided for use, without excessive dispensing of the composition.

[0262] The vial, bottle or container may be made of glass or plastic, or from any other material suitable as a container for cosmetic compositions.

[0263] In one embodiment, the composition may be stored in the body of the vial, bottle or container and dispensed through the cone of the dropper or pipette.

[0264] In another embodiment, the composition of the invention is stored in a dropper device comprising a container containing said composition, a closure member fully screwed onto the container, a pipette attached to the closure member, and a compressible chamber connected to the pipette and configured to expel the product from the pipette when it is compressed and to draw the product into the pipette when it is relaxed. This type of dropper device is also indicated in document WO0147784.

[0265] In a preferred embodiment, the dropper device is suitable for delivering a composition according to the invention which is fluid to semi-fluid, more preferably a composition according to the invention which is fluid.

[0266] Advantageously, the different portions constituting the dropper device are connected so as to prevent leaks of the composition according to the invention during use.

[0267] The composition according to the invention is not limited to use with the dropper device disclosed above. Other dropper actuation mechanisms may be used, or the composition may be packaged in a bottle, a bottle or standard container.

[0268] The present invention also relates to a process for applying the composition according to the invention using a dropper device as defined previously to the hair, comprising the following steps:

[0269] (i) shaking the vial, bottle or container containing at least the composition according to the invention,

[0270] (ii) applying pressure to the compressible chamber connected to the dropper or pipette to draw the composition according to the invention into the dropper or pipette,

[0271] (iii) removing the dropper or pipette from the vial, bottle or container and applying further pressure to the compressible chamber connected to the dropper or pipette to expel in a controlled manner the composition according to the invention, for example onto the hair or the palm of the hand, then

[0272] (iv) spread the composition on the hair with your fingers and smooth it until it is homogenized. EXAMPLES

[0273] The present invention will be described in more detail by way of examples. However, these examples should not be construed as limiting the scope of the present invention. Example 1

[0274] Composition A according to the invention and comparative composition B were prepared from the ingredients indicated in Table 1 below, the quantities of which are expressed in grams of AM per 100 g, unless otherwise stated (AM meaning “active material”):

[0275] [Tables 1] Ingredients Composition A (invention) Composition B (comparative) Amodimethicone 2.4 2.4 Dimethicone 19.4 19.4 Dimethiconol 2.6 2.6 Glycerin 4.1 4.1 Isododecane 3.5 3.5 Mica / Titanium 0.02 0.02 Phenyl Trimethicone 5.0 5.0 Polyacrylate Crosspolymer-6 (1) 0.4 - Acrylates / C10-30 Alkyl Acrylate Crosspolymer Crosspolymer (2) - 0.4 Propylene Glycol 33.0 33.0 Trideceth-10 0.2 0.2 Trideceth-5 0.9 0.9 Preservatives qs qs Water Qsp 100 Qsp 100

[0276] (1) marketed by the company SEPPIC under the brand name Seppimax Zen®

[0277] (2) marketed by the company Lubrizol under the brand name Pemulen TRI Polymer Application protocol

[0278] Strands (27 cm) of double bleached Caucasian hair were washed with shampoo, rinsed and dried.

[0279] Compositions A and B thus obtained were then applied to the locks at a ratio of 3 g of composition per gram of hair. After 2 minutes, the locks were dried. Instrumental evaluation

[0280] The characterization of the surface condition of dry hair was carried out through a sliding test using a sliding bench in a controlled environment (23°C, 50% RH). The test was repeated on three locks of hair for each composition.

[0281] A movable wick, attached to a sliding bench, was moved in a horizontal rectilinear manner between two other fixed wicks. The force required to slide the wick between the other two was measured using an electronic gauge connected to a drive arm. The measurement was taken from root to tip.

[0282] The average force (over 3 measurements) was calculated, and the evolution of the sliding force was recorded to quantify the surface condition (homogeneous or not), along the fiber. The lower the sliding force, the more homogeneous the surface condition of the hair. The more homogeneous the surface, the smoother the hair is to the touch.

[0283] The results are collected in Table 2 below:

[0284] [Tables2] Compositions Fmax mean (N) Standard deviation (N) A (invention) 0.77 ±0.01 B (comparative) 1.02 ±0.02

[0285] The sliding force for composition A according to the invention is significantly lower than the sliding force for comparative composition B. Thus, the surface condition is more homogeneous and the hair is smoother to the touch when treated with composition A according to the invention.

[0286] Composition A has good usage properties: in fact, it is a translucent composition, which has a unique and pleasant texture when applied.

[0287] Hair treated with composition A is smooth, shiny, straight, detangled and easy to style.

[0288] Furthermore, composition A has a viscosity suitable for dispensing with a dropper device in a controlled and economical manner. Example 2

[0289] Composition C according to the invention was prepared from the ingredients indicated in Table 3 below, the quantities of which are expressed in grams of AM per 100 g, unless otherwise stated (AM meaning “active material”):

[0290] [Tables3] Ingredients Composition C (invention) Amodimethicone 2.4 Dimethicone 19.4 Dimethiconol 2.6 Glycerin 4.1 Isododecane 3.5 Phenyl trimethicone 5.0 Polyacrylate cross-linked polymer-6 (1) 0.4 Propylene glycol 33.0 Trideceth-10 0.2 Trideceth-5 0.9 Preservatives qs Water Qsp 100

[0291] Application protocol

[0292] Strands (27 cm) of double bleached Caucasian hair were washed with shampoo, rinsed and dried.

[0293] Composition C thus obtained was applied to the locks at a ratio of 3 g of composition per gram of hair. After 2 minutes, the locks were dried.

[0294] The dropper device was used to dispense composition C. Results

[0295] Composition C has good usage properties: in fact, it is a translucent to transparent composition, which has a unique and pleasant texture when applied.

[0296] Hair treated with composition C is smooth, shiny, straight, detangled and easy to style.

[0297] Furthermore, composition C has a viscosity suitable for being supplied with a dropper device in a controlled and economical manner.

Claims

Claims

1. Cosmetic composition comprising: (a) at least one silicone of formula (X) below:

2. Or : R24, which is identical or different, denotes a C1-C10 alkyl radical, preferably a C1-C4 alkyl radical, even more preferably a methyl radical; R26, which is the same or different, denotes an aryl group, given that this aryl group may comprise one or more optionally substituted aryl rings; R25, identical or different, denotes R26, R24 or -OSi(R24)3; t varies from 0 to 1000; preferably t is equal to 0; u varies from 1 to 1000; preferably, u varies from 1 to 10; and the sum of t+u can vary from 1 to 2000; preferably from 1 to 10. (b) at least one aminosilicone and (c) at least one copolymer comprising at least one 2-acrylamido-2-methylpropanesulfonic acid monomer, at least one monomer with a hydrophobic group and at least one ethylenically unsaturated monomer which does not comprise any hydrophobic group and (d) at least one polyol; Composition according to any one of the preceding claims, in which the aminosilicone(s) (b) are selected from amodimethicones, preferably from aminosilicones of the following formulae: - aminosilicones of formula (C): - m and n are numbers such that the sum (n + m) ranges from 1 to 2000 and, in particular, from 50 to 150, n possibly designating a number from 0 to 1999 and in particular from 49 to 149, and m possibly designating a number from 1 to 2000 and in particular from 1 to 10; - aminosilicones of formula (D): Or : - m and n are numbers such that the sum (n + m) ranges from 1 to 1000, in particular from 50 to 250 and, more particularly, from 100 to 200; n optionally designates a number from 0 to 999, in particular from 49 to 249 and, more particularly, from 125 to 175, and m optionally designates a number from 1 to 1000, in particular from 1 to 10 and, more particularly, from 1 to 5 and - Ri, R2 and R3 which may be identical or different, represent a hydroxyl or alkoxy radical in C1-C4, at least one of the radicals Ri to R3 designating an alkoxy radical. - aminosilicones of formula (E): Or : - p and q are numbers such that the sum (p + q) ranges from 1 to 1000, in particular, from 50 to 350 and, more particularly, from 150 to 250; p possibly denotes a number from 0 to 999, in particular, from 49 to 349 and, more particularly, from 159 to 239, and q possibly denotes a number from 1 to 1000, in particular, from 1 to 10 and, more particularly, from 1 to 5 and - Ri and R2, which are different, represent a C1-C4 alkoxy or hydroxyl radical, at least one of the radicals Ri or R2 designating a methoxy radical. - aminosilicones of formula (G):

3. Or : - m and n are numbers such that the sum (n + m) ranges from 1 to 2000 and, in particular, from 50 to 150, n possibly designating a number from 0 to 1999 and in particular from 49 to 149, and m possibly designating a number from 1 to 2000 and in particular from 1 to 10; - A denotes a linear or branched alkylene radical containing from 4 to 8 carbon atoms and preferably 4 carbon atoms. - and mixtures thereof. more preferably chosen from aminosilicones of formula (E) and their mixtures. Composition according to any one of the preceding claims, in which the copolymer(s) (c) comprise at least one monomer corresponding to the general formula (1) below:

4. Where X + denotes a cationic counterion, in particular an alkali metal or an alkaline earth metal, or an ammonium, preferably ammonium, or a mixture of cations; R 1 denotes a hydrogen atom or a linear or branched C 1 -C 6 alkyl radical such as methyl, and R 1 preferably denotes a hydrogen atom. Composition according to any one of the preceding claims, in which the copolymer(s) (c) comprises / comprise at least one monomer with a hydrophobic group chosen from the acrylates or acrylamides of formula (2) below:

5. in which Ri denotes a hydrogen atom or a linear or branched C1-C6 alkyl radical, preferably methyl; Y denotes O or NH; R2 denotes a hydrocarbon radical comprising from 6 to 50 carbon atoms and more preferably from 6 to 22 carbon atoms and even more preferably from 12 to 18 carbon atoms; x denotes a number ranging from 0 to 100. Composition according to any one of the preceding claims, in which the copolymer(s) (c) comprise at least one monomer corresponding to the general formula (3) below: O''" ----------R2 R g

6.

7. in which Ri denotes a hydrogen atom or a linear or branched C1-C4 alkyl radical> Ri preferably denotes a hydrogen atom, R2 denotes a linear or branched C1-C4 alkyl radical and R3 denotes a linear or branched C1-C4 alkyl radical and R2 and R3 preferably denote a methyl. A composition according to any one of the preceding claims, wherein the polyol(s) (d) is (are) selected from C212 polyols, preferably C29 polyols, more preferably C26 polyol, comprising at least 2 hydroxy groups, and preferably 2 to 5 hydroxy groups and mixtures thereof, more preferably from the group consisting of glycerin and derivatives thereof, and glycols and derivatives thereof, and even more preferably from the group consisting of glycerin, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, butylene glycol, pentylene glycol, hexylene glycol, 1,2-propanediol, 1,3-propanediol and 1,5-pentanediol and mixtures thereof. Composition according to any one of the preceding claims, in which the composition further comprises at least one silicone (e) different from the silicones (a) and the aminosilicones (b), and more preferably- potentially at least two different silicones (e), preferably chosen from polydialkylsiloxanes, more preferably from polydimethylsiloxanes, even more preferably from polydimethylsiloxanes carrying trimethylsilyl end groups, polydimethylsiloxanes with a hydroxyl-terminated chain and mixtures thereof.

8. A cosmetic process for keratin fibers, preferably hair, comprising the step of applying the composition according to any one of claims 1 to 7 to the keratin fibers.

9. Use of a cosmetic composition according to any one of claims 1 to 7 for the treatment of keratin fibers, preferably hair.

10. A dropper device suitable for applying the cosmetic composition according to any one of claims 1 to 7 to keratin fibers, preferably hair, wherein said device comprises a vial, bottle or container containing said cosmetic composition, and a dropper or pipette, and wherein it delivers said cosmetic composition drop by drop.