Composition comprising at least one (c1-c6)alkyl acrylic acid polymer, hyaluronic acid and a hydrophilic gelling agent

Abstract

Composition comprising at least one (C1-C6)alkyl acrylic acid polymer, hyaluronic acid and a hydrophilic gelling agent The present invention relates to a composition, particularly a cosmetic composition, comprising at least one polymer obtained from (C1-C6)alkyl acrylic acid or one of its salts, less than 0.15% by weight relative to the total weight of the composition, of hyaluronic acid and / or one of its salts, and at least one hydrophilic gelling agent different from the polymer obtained from (C1-C6)alkyl acrylic acid or one of its salts and from hyaluronic acid and / or its salts. It also relates to a cosmetic treatment method for skin care, in particular for oily skin, comprising the application of a cosmetic composition according to the invention.

Description

[0001] Composition comprising at least one (CrCgJalkyl acrylic acid polymer, hyaluronic acid and a hydrophilic gelling agent

[0002] The present invention relates to a composition, particularly a cosmetic composition, comprising at least one polymer obtained from (C1-C6)alkyl acrylic acid or one of its salts, less than 0.15% by weight relative to the total weight of the composition of hyaluronic acid and / or one of its salts, and at least one hydrophilic gelling agent different from the polymer obtained from (C1-C6)alkyl acrylic acid or one of its salts and from hyaluronic acid and / or its salts. It also relates to a cosmetic treatment method for skin care, in particular for oily skin, comprising the application of a cosmetic composition according to the invention.

[0003] Sebum is normally a moisturizing agent of the epidermis. It is the natural product of the sebaceous gland which forms an appendage to the pilosebaceous unit. It is essentially a more or less complex mixture of fats. Conventionally, the sebaceous gland produces squalene, triglycerides, aliphatic waxes, cholesterol waxes, and possibly free cholesterol.

[0004] Hyperseborrheic oily skin is characterized by excessive sebum secretion and excretion. Conventionally, a sebum level greater than 200 pg / cm2measured on the forehead is considered as characteristic of such oily skin. Such skin is also often associated with defective desquamation, a shiny complexion and / or a thick skin texture, i.e. signs perceived as skin imperfections or blemishes.

[0005] Skin glossiness is generally related to substantial sebum secretion, but can also be related to sweat, result from physical activity or climatic conditions (heat, humidity); it can also be due to the combination of the two phenomena (sebum and sweat).

[0006] Besides the active agents for preventing and / or treating this substantial sebum secretion, compositions are sought which have an appearance consistent with the purpose for which this composition is used by the consumer.

[0007] Thus, a composition having minimal glossiness, a slushy / water ice appearance and a slip effect on application on the skin is highly sought-after by users, in particular those with combination or oily skin, because it gives a perception of lightness, freshness while guaranteeing a certain comfort when applied. There is therefore a need for cosmetic compositions, particularly adapted for oily or oily- prone skin having good sensory properties, namely minimal glossiness (i.e. very slightly glossy) as well as a slushy / water ice appearance while retaining a slip effect when applied on the skin.

[0008] The Applicant has now discovered that a composition comprising at least one polymer obtained from (C C6)alkyl acrylic acid, hyaluronic acid or one of its salts at a certain concentration and at least one hydrophilic gelling agent different from the polymer obtained from (CrCeJalkyl acrylic acid and from hyaluronic acid, has minimal glossiness, a slushy / water ice appearance and a good slip effect when applied on the skin.

[0009] Thus, the subject matter of the invention is a composition, particularly a cosmetic composition, comprising: i) at least one polymer obtained from (C Cejalkyl acrylic acid or one of its salts, comprising a repetition of units of formula (I):

[0010] [Chem 1] formula (I) wherein:

[0011] * R1and R2, identical or different, represent a hydrogen atom or a (C-j-Cejalkyl group such as methyl, preferably R1and R2represent a hydrogen atom,

[0012] * M+represents a cationic counterion, preferably an alkali, alkaline earth metal or ammonium, more preferably M+represents an alkali metal such as sodium; ii) less than 0.15% by weight relative to the total weight of the composition, of hyaluronic acid and / or one of its salts, and iii) at least one hydrophilic gelling agent different from the polymer obtained from (C1- C6)alkyl acrylic acid or one of its salts and from hyaluronic acid and / or its salts.

[0013] Such a composition according to the invention is advantageous in several respects: it gives the user a sensation of freshness and lightness on application due to its minimal glossiness (i.e. very slightly glossy) and its slushy appearance (like finely crushed ice), while retaining a certain comfort thanks to a slip effect when applied on the skin.

[0014] For the purposes of the invention, “slushy” characterizes an appearance with a slightly granular, ice-frosted effect. Slushy appearance is synonymous with a frosted texture; “frosted texture” means a composition having a water ice appearance, which melts on the skin when applied. Such a frosted texture is characterized in particular by the presence of clusters homogeneously distributed in the composition. The slushy effect and a minimal glossiness of the composition according to the invention are visual features of the composition, which can particularly be evaluated in its container such as a jar, and are of particular interest in the context of compositions intended for the treatment of oily skin, because they give the consumer the sensation of a light and fresh texture.

[0015] The slip effect of the composition according to the invention can be evaluated by determining the number of revolutions that can be performed on the skin for a defined time, for example the number of revolutions for 15 seconds after depositing the composition on the skin.

[0016] Advantageously, the composition according to the invention has a viscosity of less than 40 Pa.s, preferably a viscosity ranging from 20 to 40 Pa.s, more preferably from 25 to 40 Pa.s, even more preferably from 30 to 40 Pa.s.

[0017] The viscosity is measured at 30°C, using an Ametek Brookfield HADV2T viscometer equipped with a no. 6 spindle such as that with the reference HA-6, the measurement being made after 1 minute of rotation of the spindle in the composition (after which time, a stabilization of the viscosity and rotational speed of the spindle is observed), at a speed of 10 rpm.

[0018] The invention also relates to a cosmetic treatment method for skin care, in particular for oily skin, comprising the application of a cosmetic composition according to the invention.

[0019] According to the present invention, and unless indicated otherwise:

[0020] “Polymer(s)" means one or more homopolymer(s) (i.e. obtained from the polymerization of identical synthons), one or more copolymer(s) (i.e. obtained from the polymerization of different synthons), or mixtures thereof, i.e. homopolymers and copolymers.

[0021] “(1-C6)alkyl group" means a saturated, linear or branched, C Ce, preferably CrC4, hydrocarbon radical.

[0022] “Cationic counterion" means a cation or cationic group obtained from an organic or mineral base salt counterbalancing the anionic charge of the ingredients of formula (I’) or (II’); more particularly, the cationic counterion is chosen from alkali metals such as sodium, potassium, preferably Na+; alkaline earth metals such as calcium; ammonium (R)4N+where R, identical or different, represents a hydrogen atom or a (C Cejalkyl group optionally substituted by one or more hydroxy groups, preferably R represents a hydrogen atom or a (C C4)alkyl group such as methyl.

[0023] “Composition comprising a physiologically acceptable medium" means a composition comprising a medium compatible with the skin. “Skin" means all of the skin of the human body, and preferably the skin of the face, scalp, neckline, neck, arms and forearms, or even more preferably, the skin of the face, in particular the forehead, nose, cheeks, chin, eye contour. Preferably, the skin concerned according to the invention is oily skin, i.e. having excess sebum.

[0024] Polymer obtained from (C1-C6)alkyl acrylic acid

[0025] The composition of the invention comprises i) one or more polymer(s) obtained from (Cr C6)alkyl acrylic acid or one of its salts, as defined hereinabove.

[0026] Preferably, the polymer(s) i) is / are chosen from homopolymers.

[0027] According to another embodiment of the invention, the polymer(s) of i) is / are chosen from copolymers.

[0028] According to a particular embodiment of the invention, the polymer(s) i) comprise a repetition of units of formula (I) and unit(s) of formula (II):

[0029] -[CH(R1)-C(R2)(COO-M+)]- (I) and -[CH(R1)-C(R2)(COOH)]- (II) formulas (I) and (II) wherein R1and R2, and M+are as defined hereinabove.

[0030] According to a particular embodiment of the invention, the polymer(s) i) comprise a repetition of units of formula (I) and unit(s) of formula (II):

[0031] -[CH(R1)-C(R2)(COO-M+)]y- (l) and -[CH(R1)-C(R2)(COOH)]z- (II) formulas (I) and (II) wherein R1and R2, and M+are as defined hereinabove, and

[0032] * y represents an integer greater than or equal to 2;

[0033] * z equals zero, or represents a number greater than zero; preferably y > z.

[0034] According to a particular embodiment, the polymer(s) i) of the invention consist(s) of a repetition of unit of formula (I) and formula (II).

[0035] According to a preferred embodiment of the invention, the polymer(s) i) of the invention comprise (preferably consist of) a repetition of units of formula (I) and formula (II) wherein the molar number of units of formula (I) is greater than or equal to the molar number of units of formula (II), preferably the molar number of units of formula (I) is greater than the molar number of units of formula (II).

[0036] According to a particular embodiment, the polymer(s) i) of the invention comprise (preferably consist of) a repetition of units of formula (I) without any unit (II). According to another particular embodiment, the polymer(s) of the invention i) comprise (preferably consist of) a repetition of units of formula (I) and formula (II) wherein the molar number of units of formula (II) is greater than the molar number of units of formula (I).

[0037] The neutralized polymer(s) i) can be totally or partially neutralized. Preferably, the polymer(s) i) is / are partially neutralized, preferably by a metal salt, more preferably by an alkali metal salt, and even more preferably a sodium salt.

[0038] According to a particular embodiment, in the polymer(s) of the invention, the molar ratio of the neutralized parts (units of formula (I)) to non-neutralized parts (units of formula (II)) is at least 10%, particularly at least 20%, more particularly at least 30%, even more particularly at least 40%, or even at least 50% and / or particularly at most 90%, more particularly at most 80%, even more particularly at most 70%, more preferably at most 60%.

[0039] According to a particular embodiment of the invention, the composition comprises one or more polymer(s) i) as defined hereinabove comprising (preferably consisting of) a repetition of units of formula (I) and unit (II) wherein R1and R2represent a hydrogen atom or a (Cr C4)alkyl group such as methyl, preferably a hydrogen atom.

[0040] According to a particular embodiment of the invention, the composition comprises one or more polymer(s) i) as defined hereinabove wherein M+represents a cationic counterion chosen from an alkali, alkaline earth metal and ammonium, preferably M+represents an alkali metal such as sodium.

[0041] Particularly, the polymer(s) i) as defined hereinabove is / are selected from “superabsorbents", i.e. the polymer(s) is / are capable of absorbing at least 20 times its / their weight in water (i.e. at least 20 grams of water absorbed per gram of superabsorbent polymer - the water absorbency features being defined at ambient temperature, 25°C, and atmospheric pressure (1 atm.) with distilled water), more particularly at least 50 times its / their weight in water, more particularly capable of absorbing at least 80 times its / their weight in water, preferably the polymer(s) of formula (I) is / are capable of absorbing at least 100 times its / their weight in water.

[0042] The “water-absorbing capacity’ value of the polymer(s) can be determined for example by dispersing 5 grams (g) of polymer(s) in 150 g of water and waiting from 5 minutes (min) to 30 min, such as 20 min, by filtering the solution through a 150 mm filter in 20 min and weighing the non-absorbed water. According to a particular embodiment of the present invention, the polymer(s) i) as defined hereinabove can have a water-absorbing capacity of 10 g or more, preferably 20 g or more, and more preferably 50 g or more, and / or 2000 g or less, preferably 1500 g or less, and more preferably 1000g or less, relative to 1 g of the polymer at 25°C and 1 atm.

[0043] The polymer(s) of the invention i) as defined above is / are particularly obtained from the polymerization of: a) several monomers, identical (in which case they will be homopolymers) or different (in which case they will be copolymers), chosen from:

[0044] - (alkyl)acrylic acids of the following formula (II’) HC(R1)=C(R2)-C(O)OH,

[0045] - salts of the following formula (I’) HC(R1)=C(R2)-C(O)O M+and

[0046] - mixtures of the monomers (I’) and (II’), as well as their optical isomers, and / or geometric isomers, it being understood that in formulas (I’) and (II’), R1, R2and M+are as defined hereinabove; b) in the presence of polymerization initiator (UV-initiator) to result in the polymers of formula (I) as defined hereinabove.

[0047] According to a particular embodiment of the invention, the polymer(s) of the invention i) as defined above is / are obtained from the polymerization of monomers of formula (II’), said polymer(s) being subsequently neutralized using at least one alkaline agent, preferably the alkaline agent is inorganic, particularly chosen from alkali or alkaline earth metal hydroxides such as sodium hydroxide, potassium hydroxide, alkali or alkaline earth metal (bi)carbonate(s), preferably chosen from sodium (bi)carbonate and sodium carbonate, more preferably sodium carbonate.

[0048] Preferably R1represents a hydrogen atom, R2represents a hydrogen atom or a (C C4)alkyl group such as methyl, more preferably R2represents a hydrogen atom; and M+preferably represents an alkali metal such as sodium or potassium, more preferably sodium.

[0049] Furthermore, the polymer(s) i) as defined hereinabove and the monomers (I’) and / or (II’) is / are capable of crosslinking in the presence of one or more crosslinking agent(s), said agent(s) can be applied for example by spraying on the surface of said polymer(s), said polymer(s) being more particularly in particle form.

[0050] The polymer(s) of i) as defined hereinabove can be in the particle form.

[0051] The polymer(s) i) as defined hereinabove is / are preferably in particle form and preferably spherical. The average size of the primary particles as D50 (particularly non-hydrated particles) of the polymer(s) i) as defined hereinabove is not particularly limited, is generally 0.1 m or more, preferably 0.5 pm or more, and more preferably 1 pm or more, and / or is 200 pm or less, preferably 100 pm or less, more preferably 50 pm or less.

[0052] The term “D50” here means the particle size for which 50% of the particle volume, based on the total particle volume, has a particle size less than or equal to D50.

[0053] The D50 value can be determined by laser diffraction, for example using a laser diffraction particle size distribution analyzer, such as Mastersizer 2000 from Malvern Corp.

[0054] The polymer(s) i) as defined can be water-soluble, the polymer(s) i) possibly being included in the aqueous phase, including water, of the composition according to the present invention.

[0055] According to an embodiment of the invention, once hydrated, said particles swell by forming flexible particles having an average diameter between 10 pm and 300 p m inclusive, more particularly between 20 pm and 200 p m, even more particularly between 40 pm and 150 p m. The particle sizes correspond to the primary particle sizes.

[0056] According to a particular embodiment of the invention, the particles of the polymer(s) i) are non-swollen and have an average particle size (average diameter) between 2 pm and 10 p m, particularly between 4 pm and 50 p m, more particularly between 5 pm and 30 p m, more preferably between 10 pm and 20 p m. The particle sizes correspond to the primary particle sizes.

[0057] The polymer(s) i) as defined hereinabove is / are preferably crosslinked, and more preferably in particle form.

[0058] In a preferred embodiment, the polymer(s) i) as defined hereinabove is / are chosen from crosslinked homopolymers.

[0059] Among the preferred polymers i) of the invention, mention can be made of polyacrylates of alkali, alkaline earth metals or ammonium, preferably polyacrylates of alkali or alkaline earth metals, more preferably polyacrylates of alkali metals such as sodium acrylates, for example that sold under the name of AQLIPEC particularly AQU PEC MG N40R, crosslinked and partially neutralized and also known as sodium carbomer (or carbopol), more particularly, the polymer(s) i) is / are chosen from carbomers, preferably S carbomer or sodium carbomer.

[0060] The quantity in the composition of polymer(s) i) as defined hereinabove is particularly at least 0.5% by weight, more particularly at least 0.7% by weight, and more preferably at least 1 % by weight relative to the total weight of the composition. The quantity in the composition of polymer(s) i) as defined hereinabove is particularly at most 10% by weight, preferably at most 5% by weight, and more preferably at most 3% by weight, relative to the total weight of the composition.

[0061] Particularly, the quantity in the composition of polymer(s) i) as defined hereinabove ranges from 0.5% to 5% by weight, preferably ranges from 0.7% to 4% by weight, and more preferably ranges from 1 % to 3% by weight, more preferably ranges from 1% to 2% relative to the total weight of the composition.

[0062] Hyaluronic acid and / or one of its salts

[0063] The composition according to the invention also comprises hyaluronic acid and / or one of its salts ii), at a concentration less than or equal to 0.15% by weight relative to the total weight of the composition.

[0064] Hyaluronic acid belongs to the glycosaminoglycan (GAG) family.

[0065] GAGs are linear chains composed of the repetition of a basic diholoside always containing a hexosamine (glucosamine or galactosamine) and another sugar (glucuronic acid, iduronic acid or galactose). Glucosamine is either N-sulfated or N-acetylated. On the other hand, galactosamine is always N-acetylated. Furthermore, there may be O-bound sulfates on hexosamine, uronic acid and galactose.

[0066] Hyaluronic acid or hyaluronan (HA) is the main GAG of the dermis, the latter containing half of the body’s HA.

[0067] It is a polysaccharide of disaccharides themselves composed of D-glucuronic acid and N- acetylglucosamine, bound together by alternating beta-1 ,4 and beta-1 ,3 glycoside bonds. It plays an important role in skin hydration and elasticity.

[0068] As hyaluronic acid salts, mention can be made in particular of potassium hyaluronate and sodium hyaluronate.

[0069] Preferably, sodium hyaluronate will be used according to the invention.

[0070] In the composition of the invention, sodium hyaluronate with a molecular weight of 1 ,100,000 Daltons sold by SOLIANCE under the trade name CRISTALHYAL® can particularly be used.

[0071] Hyaluronic acid or one of the salts thereof, or mixtures thereof, can be present in the composition according to the invention in a quantity of less than 0.13% by weight (of dry matter) and preferably at least 0.0001% by weight (of dry matter) relative to the total weight of the composition. In a preferred embodiment, hyaluronic acid or one of its salts or mixtures thereof is present in the composition according to the invention in a quantity ranging from 0.0001% to 0.15% by weight (of dry matter) relative to the total weight of the composition, preferably ranging from 0.01% to 0.13% by weight (of dry matter), more preferably ranging from 0.05% to 0.12% by weight (of dry matter) relative to the total weight of the composition.

[0072] Hydrophilic gelling agent

[0073] The composition according to the invention comprises at least one hydrophilic gelling agent iii). It can preferably comprise a mixture of several hydrophilic gelling agents.

[0074] Of course, the hydrophilic gelling agent iii) is different from the polymer obtained from (C1- C6)alkyl acrylic acid or one of its salts i) and also different from hyaluronic acid and / or its salts ii).

[0075] Advantageously, the composition according to the invention comprises at least one hydrophilic gelling agent chosen from polymers with a sulfonic group, polysaccharides, and mixtures thereof.

[0076] The hydrophilic gelling agent(s) can be present in the composition according to the invention at a concentration ranging from 0.01 % to 5%, and preferably from 0.1% to 3%, and even more preferably from 0.1% to 1% by weight relative to the total weight of said composition.

[0077] Polymer with a sulfonic group

[0078] “Polymer with a sulfonic group” means a poly(2-acrylamido 2-methyl propane sulfonic) acid polymer, their salts or mixtures thereof, preferably a homo- or copolymer of a monomer with a sulfonic group, their salts or mixtures thereof.

[0079] These polymers are water-soluble, water-dispersible or can swell in water. These polymers used in accordance with the invention are homo- or copolymers that can be obtained from at least one monomer with ethylenic unsaturation and with a sulfonic group, possibly in free or partially or totally neutralized form.

[0080] Preferably, the polymers with a sulfonic group used in accordance with the invention can be partially or completely neutralized by a mineral base (such as sodium hydroxide, potassium hydroxide or aqueous ammonia) or an organic base such as mono-, di- or triethanolamine, an aminomethyl propanediol, N-methylglucamine or basic amino acids such as arginine or lysine, or mixtures of these compounds. In general, they are neutralized. In the present invention, the term “neutralized” is intended to refer to polymers that have been neutralized completely or almost completely, that is to say neutralized to at least 90%. The polymers with a sulfonic group used in the composition of the invention generally have a number-average molecular mass ranging from 1000 to 20,000,000 g / mol, preferably ranging from 20,000 to 5,000,000, and even more preferably from 100,000 to 1 ,500,000 g / mol.

[0081] The monomers with a sulfonic group of the polymer are chosen particularly from vinylsulfonic acid, styrenesulfonic acid, (meth)acrylamido-(C1-C22)alkylsulfonic acids, N- (C1-C22)alkyl-(meth)acrylamido-(C1 C22)-alkylsulfonic acids such as undecyl-acrylamido- methane-sulfonic acid, as well as the partially or totally neutralized forms thereof, and mixtures thereof.

[0082] According to a preferred embodiment of the invention, the monomers with a sulfonic group are chosen from (meth)acrylamido(C1-C22)alkylsulfonic acids such as for example acrylamido-methane-sulfonic acid, acrylamido-ethane-sulfonic acid, acrylamido-propane- sulfonic acid, 2-acrylamido-2-methylpropane-sulfonic acid, 2-methacrylamido-2- methylpropane-sulfonic acid, 2-acrylamido-n-butane-sulfonic acid, 2-acrylamido-2,4,4- trimethylpentane-sulfonic acid, 2-methacrylamido-dodecyl-sulfonic acid, 2-acrylamido-2,6- dimethyl-3-heptane-sulfonic acid, as well as the partially or totally neutralized forms thereof, and mixtures thereof.

[0083] These polymers according to the invention can be crosslinked or non-crosslinked.

[0084] When the polymers are crosslinked, the crosslinking agents may be chosen from the olefinically-polyunsaturated compounds commonly used for crosslinking polymers obtained by radical polymerization.

[0085] As examples of crosslinking agents, mention can be made of divinylbenzene, diallyl ether, dipropylene glycol diallyl ether, polyglycol diallyl ethers, triethylene glycol divinyl ether, hydroquinone diallyl ether, di(meth)acrylate ethylene glycol, di(meth)acrylate tetraethylene glycol, trimethylol propane triacrylate, methylene-bis-acrylamide, methylene-bis- methacrylamide, triallylamine, triallyl cyanurate, diallyl maleate, tetraallylethylenediamine, tetra-allyloxyethane, trimethylolpropane diallyl ether, allyl (meth)acrylate, allyl ethers of alcohols as well as the allyl esters of phosphoric acid derivatives and / or vinylphosphonic acid derivatives, or mixtures of these compounds. According to a preferred embodiment of the invention, the crosslinking agent is chosen from methylene-bis-acrylamide, allyl methacrylate or trimethylol propane triacrylate (TMPTA).

[0086] The degree of crosslinking generally ranges from 0.01 to 10% in moles, and more particularly from 0.2 to 2% in moles, with respect to the polymer.

[0087] Preferably, the polymer with a sulfonic group is chosen from 2-acrylamido-2-methyl propane sulfonic acid homo- and copolymers, their salts and mixtures thereof. Even more preferably, the polymer with a sulfonic group is chosen from 2-acrylamido-2- methyl propane sulfonic acid homopolymers, their salts and mixtures thereof.

[0088] The more particularly preferred 2-acrylamido 2-methyl propane sulfonic acid homopolymers comprise randomly distributed units with the following general formula (III):

[0089] [Chem 2] wherein X+denotes a proton, an alkali metal cation, an alkaline earth cation or the ammonium ion, at most 10% mol of X+cations may consist of H+protons; and crosslinking agents originating from at least one monomer having at least two olefinic double bonds.

[0090] The homopolymers that are used, and more particularly preferred, according to the invention comprise from 90 to 99.9% by weight, and preferably from 98 to 99.5% by weight of units with the formula (III), and from 0.01 to 10% by weight, preferably from 0.2 to 2% by weight of crosslinking units, the proportions by weight being defined relative to the total weight of the polymer.

[0091] The preferred homopolymers of this type are chosen from crosslinked or non-crosslinked polymers of sodium 2-acrylamido-2-methyl propane sulfonate acid such as that used in the commercial product SIMULGEL 800 (CTFA name: Sodium Polyacryloyldimethyl Taurate), or crosslinked polymers of ammonium 2-acrylamido-2-methyl propane sulfonate acid (INCI name: AMMONIUM POLYACRYLDIMEHYLTAURAMIDE) such as the product sold under the trade name HOSTACERIN AMPS® by Clariant.

[0092] The preferred copolymers of 2-acrylamido 2-methyl propane sulfonic acid are chosen from: - copolymers of 2-acrylamido-2-methylpropane sulfonic acid and acrylamide, for example of SEPIGEL or SIMULGEL type sold in particular by SEPPIC. By way of non-limiting examples of such copolymers, mention can be made for example of anionic crosslinked acrylamide / 2-acrylamido 2-methyl propane sulfonic acid copolymers, in the form of W / O emulsion, such as those marketed under the trade name Sepigel 305 (INCI name: polyacrylamide (and) C13-14 isoparaffin (and) laureth-7) and under the trade name Simulgel 600 (INCI name: acrylamide / sodium acryloyldimethyltaurate copolymer (and) isohexadecane (and) polysorbate 80) by the company SEPPIC; - copolymers of 2-acrylamido 2-methyl propane sulfonic acid and vinylpyrrolidone or vinylformamide such as that used in the commercial product sold under the trade name ARISTOFLEX AVC® by CLARIANT (CTFA name: AMMONIUM ACRYLOYLDI METH YLTAURATEA / P COPOLYMER) but neutralized with soda or potash;

[0093] - copolymers of 2-acrylamido 2-methyl propane sulfonic acid and sodium acrylate, such as for example the 2-acrylamido 2-methyl propane sulfonic acid / sodium acrylate copolymer such as that used in the commercial product sold under the trade name SIMULGEL EG® by SEPPIC or under the trade name SEPINOV EM (CTFA name: HYDROXYETHYL ACRYLATE / SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER);

[0094] - copolymers of 2-acrylamido 2-methyl propane sulfonic acid and hydroxyethyl acrylate, such as for example 2-acrylamido 2-methyl propane sulfonic acid / hydroxyethyl acrylate copolymer such as that used in the commercial product sold under the trade name SIMULGEL NS® by SEPPIC (CTFA name: HYDROXYETHYL ACRYLATE / SODIUM ACRYLOYLDI METHYLTAU RATE COPOLYMER (AND) SQUALANE (AND) POLYSORBATE 60) or as the product marketed under the name SODIUM ACRYLAMIDO- 2-M ETHYLPROPANE SULFONATE / HYDROXYETHYLACRYLATE COPOLYMER such as the commercial product SEPINOV EMT 10 (INCI name: HYDROXYETHYL ACRYLATE / SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER);

[0095] - copolymers of 2-acrylamido 2-methyl propane sulfonic acid and ethoxylated cetearyl methacrylate, optionally crosslinked, such as Aristoflex® HMS, which bears the name 80 / 20 2-acrylamido 2-methyl propane sulfonic acid / ethoxylated (25 EO) cetearyl methacrylate copolymer, crosslinked with trimethylolpropane triacrylate (TMPTA) or Ammonium Acryloyldimethyltaurate / Steareth-25 methacrylate crosspolymer as the INCI name;

[0096] - and mixtures thereof.

[0097] Preferably, the polymer with a sulfonic group is a crosslinked homopolymer of 2-acrylamido- 2-methyl propane sulfonic acid ammonium salt (INCI name: AMMONIUM POLYACRYLDIMEHYLTAURAMIDE) such as the product sold under the trade name HOSTACERIN AMPS® by Clariant.

[0098] Polysaccharide

[0099] As a general rule, the polysaccharides according to the invention can be chosen from polysaccharides produced by microorganisms; polysaccharides isolated from algae and polysaccharides from upper plants, such as homogeneous polysaccharides, particularly celluloses and their derivatives and fructosans, heterogeneous polysaccharides such as gum arabic, galactomannans, glucomannans, pectins, and their derivatives. In particular, the polysaccharides can be chosen from fructans, gellans, glucans, amylose, amylopectin, glycogen, pullulan, dextrans, celluloses and their derivatives, in particular methylcelluloses, hydroxyalkylcelluloses, ethylhydroxyethylcelluloses and carboxymethylcelluloses, mannans, xylans, lignins, arabans, galactans, galacturonans, alginate-based compounds, chitin, chitosans, glucoronoxylans, arabinoxylans, xyloglucans, glucomannans, pectic acids and pectins, arabinogalactans, carrageenans, agars, gums, tragacanth gums, ghatti gums, karaya gums, carob gums, galactomannans such as guar gums and their non-ionic derivatives, in particular gual hydroxypropyl, and ionic derivatives, biopolysaccharide gums of microbial origin, in particular scleroglucan or xanthan gums or polyholosides comprising fucose, galactose and galacturonic acid units such as biosaccharide gum-1 , mucopolysaccharides, and in particular chondroitin sulfates and mixtures thereof.

[0100] Advantageously, a composition according to the invention comprises as a hydrophilic gelling agent at least one polysaccharide chosen from carrageenans, particularly kappa- carrageenan, gellan gum, agar-agar, xanthan gum, alginate-based compounds, particularly sodium alginate, sceroglucan gum, guar gum, inulin, pullulan, and mixtures thereof.

[0101] These polysaccharides can be chemically modified, in particular by urea, urethane groups, or by hydrolysis, oxidation, esterification, etherification, sulfation, phosphatation, amination, amidation, alkylation reactions, or by several of these modifications.

[0102] The derivatives obtained can be anionic, cationic, amphoteric or non-ionic.

[0103] Advantageously, the polysaccharides can be chosen from carrageenans, particularly kappa-carrageenan, gellan gum, agar-agar, xanthan gum, alginate-based compounds, particularly sodium alginate, sceroglucan gum, guar gum, inulin, pullulan, and mixtures thereof.

[0104] Generally, compounds of this type, that can be used in the present invention, are chosen from those particularly described in “Encyclopedia of Chemical Technology”, Kirk-Othmer, Third Edition, 1982, Volume 3, pp. 896-900, and volume 15, pp 439-458, in “Polymers in Nature”, by E. A. Me GREGOR and C. T. GREENWOOD, Editions John Wiley & Sons, Chapter 6, pp 240-328, 1980, in the publication by Robert L. DAVIDSON’ “Handbook of Water Soluble Gums and Resins” published by Me Graw Hill Book Company (1980) and in “Industrial Gums, Polysaccharides and Their Derivatives”, edited by Roy L. WHISTLER, Second Edition, Edition Academic Press Inc.

[0105] According to a preferred embodiment, the polysaccharide is chosen from xanthan gum, alginate-based compounds, particularly sodium alginate, sceroglucan gum, guar gum, and mixtures thereof.

[0106] According to a preferred embodiment, the polysaccharide is xanthan gum. Xanthan gums have a molecular weight between 1 ,000,000 g / mol and 50,000,000 g / mol and a viscosity between 0.6 and 1.65 Pa.s for an aqueous composition containing 1 % xanthan gum (measured at 25°C with a Brookfield LVT viscometer at 60 rpm).

[0107] Xanthan gums are represented for example by the products sold under the trade names Rhodicare by RHODIA CHIMIE, under the trade name SATIAXANE™ by Cargill Texturizing Solutions (for the food, cosmetic and pharmaceutical industry), under the name NOVAXAN™ by ADM, and under the names Kelzan® and Keltrol® by CP-Kelco.

[0108] In a preferred embodiment, the composition according to the invention comprises at least one hydrophilic gelling agent iii) chosen from polymers with a sulfonic group, polysaccharides, and mixtures thereof. In a preferred embodiment, the composition according to the invention comprises at least one hydrophilic gelling agent chosen from a crosslinked homopolymer of 2-acrylamido-2-methyl propane sulfonic acid ammonium salt, a xanthan gum, and mixtures thereof.

[0109] Physiologically acceptable medium

[0110] In addition to the compounds indicated hereinabove, the composition according to the invention comprises a physiologically acceptable medium.

[0111] The physiologically acceptable medium is generally adapted to the nature of the substrate onto which the composition is to be applied, and also to the aspect in which the composition is to be packaged.

[0112] The cosmetic compositions of the invention are preferably in the form of an O / W emulsion.

[0113] The physiologically acceptable medium can comprise water and optionally one or more water-miscible solvent(s).

[0114] According to a preferred embodiment, the compositions according to the invention comprise at least 20% by weight of water, particularly at least 40% by weight of water relative to the total weight of said composition.

[0115] Preferably, the composition according to the invention has a water content ranging from 20% to 95% by weight, more preferably from 40% to 90% by weight relative to the total weight of the composition.

[0116] A water suitable for the invention can be a floral water such as cornflower water and / or a mineral water such as VITTEL water, VICHY water or LA ROCHE POSAY water and / or a spring water. Among the water-miscible organic solvents (at ambient temperature 25°C), mention can be made of one or more cosmetically acceptable organic solvents, which can be alcohols, in particular monovalent alcohols such as ethyl alcohol, propanediol, isopropyl alcohol, benzyl alcohol and phenylethyl alcohol; diols such as ethylene glycol, propylene glycol, butylene glycol and pentylene glycol; and ethers such as monomethyl, monoethyl and monobutyl ethers of ethylene glycol, monomethyl, monoethyl and monobutyl ether of propylene glycol, and monomethyl, monoethyl and monobutyl ethers of butylene glycol, and glycerin.

[0117] The water-miscible organic solvent(s) can be present at a concentration of 0.01% to 30% by weight, preferably from 0.1% to 20% by weight and more preferably from 1% to 15% by weight, relative to the total weight of the composition.

[0118] The composition according to the invention can also comprise any water-soluble or water- dispersible compound such as film-forming polymers, surfactants, and mixtures thereof.

[0119] The composition according to the invention can also comprise at least one fatty substance such as one or more oil(s).

[0120] The term “oil” means any fatty substance in liquid form at ambient temperature (20-25°C) and at atmospheric pressure. These oils may be of plant, mineral or synthetic origin.

[0121] As oils suitable for use in the composition of the invention, mention can be made for example of: hydrocarbon oils particularly of plant origin; synthetic esters and ethers, in particular of fatty acids, such as the oils of formulas R1COOR2 and R1OR2 wherein R1 represents the residue of a fatty acid including 8 to 29 carbon atoms, and R2 represents a hydrocarbon chain, branched or not, containing 3 to 30 carbon atoms; linear or branched hydrocarbons, of mineral or synthetic origin;

[0122] - fatty alcohols having from 8 to 26 carbon atoms; partially hydrocarbon and / or silicone fluorinated oils; silicone oils; mixtures thereof.

[0123] The term hydrocarbon oil in the list of oils cited above denotes any oil comprising mostly carbon and hydrogen atoms, and optionally ester, ether, fluorinated, carboxylic acid and / or alcohol groups.

[0124] According to a particular embodiment of the invention, the composition used within the scope of the invention is a water-in-oil (W / O) or oil-in-water (O / W), preferably oil-in water(O / W), emulsion. The proportion of fatty substance of the emulsion can range from 1 to 90% by weight, and preferably from 1 to 60% by weight relative to the total weight of the composition.

[0125] The composition can comprise at least one emulsifier. The emulsions generally contain at least one emulsifier selected from amphoteric, anionic, cationic or non-ionic emulsifiers, used alone or in a mixture, and optionally a co-emulsifier. The emulsifiers are suitably selected according to the emulsion to be obtained (W / O or O / W).

[0126] The emulsifier and the co-emulsifier are generally present in the composition in a proportion ranging from 0.05 to 5% by weight, and preferably from 0.07 to 3% by weight relative to the total weight of the composition.

[0127] Preferably, the composition according to the present invention has a pH of 4.5 or more, and more preferably of 5 or more.

[0128] Preferably, the composition according to the present invention has a pH of 7.0 or less, and more preferably of 6.5 or less.

[0129] Preferably, the composition according to the present invention has a pH from 4.5 to 6.5, and more preferably from 5.5 to 6.5.

[0130] The pH of the composition means the pH of the aqueous phase of the composition according to the present invention.

[0131] Additives

[0132] A cosmetic composition according to the invention can also further comprise any additive routinely used in the field in question, for example chosen from gums different from compounds iii), resins, dispersing agents, essential oils, preservatives, fragrances, antiseptic agents, anti-UV protective agents, cosmetic active agents, sequestering agents, fillers, and mixtures thereof.

[0133] A person skilled in the art can adjust the type and quantity of additives present in the compositions according to the invention by means of routine operations, so that the cosmetic properties and the stability properties sought for these compositions are not affected by the additives.

[0134] Preferably, the composition according to the invention further comprises at least one cosmetic active agent. “Cosmetic active agent’ means a compound that can be incorporated into a cosmetic composition to provide an effect on keratin materials, whether this effect is immediate or provided by repeated applications. As examples of cosmetic active agents, mention can be made of optionally colored, optionally fluorescent chromophores, such as those obtained from optical brighteners, or chromophores obtained from UVA and / or UVB filters, anti-aging active agents or active agents intended to provide a benefit to the skin such as active agents having an action on the barrier function, antiacne active agent, deodorant active agents, antiperspirant active agents, exfoliating active agents, antioxidant active agents, moisturizing active agents, sebum-regulating active agents, active agents intended to limit skin glossiness, active agents intended to combat the effects of pollution, antimicrobial or bactericidal active agents, anti-dandruff active agents and fragrances. Preferably, the cosmetic active agent is an agent for preventing and / or treating oily skins, preferably chosen from anti-acne active agents, sebum-regulating active agents and active agents intended to limit skin glossiness. Preferably, such an agent for preventing and / or treating oily skins is chosen from silica, in particular in the form of microspheres, glycyrrhizic acid and its salts such as dipotassium glycyrrhizate, and mixtures thereof.

[0135] The composition according to the can invention comprise glycyrrhizic acid and / or one of its salts such as dipotassium glycyrrhizate. The term “salt” means a salt formed by an inorganic or organic base. Mention can be made, as salts, of the ammonium salt of glycyrrhizic acid and dipotassium glycyrrhizate. Preferably, the glycyrrhizic acid salt according to the invention is dipotassium glycyrrhizate. Glycyrrhizic acid or (3p,20p)-20-carboxy-11-oxo-30- norolean-12-en-3-yl 2-O-p-D-glucopyranuronosyl-alpha-D-glucopyranosiduronic acid is a heteroside, the aglycone (an acidic terpene) part of which is bound to a dimer sugar acid of glucuronic acid.

[0136] It complies with formula (VI) below:

[0137] Dipotassium glycyrrhizate complies with formula (VII) below:

[0138]

[0139] Preferably, such an active agent chosen from silica, particularly in the form of microspheres, glycyrrhizic acid and its salts such as dipotassium glycyrrhizate, and mixtures thereof, is used at a concentration of 0.01 % to 2%, preferably from 0.05% to 1.5% and even more preferably from 0.1% to 1 % relative to the total weight of the composition.

[0140] Preferably, the composition according to the invention comprises niacinamide or one of its derivatives.

[0141] For the purposes of the invention, niacinamide has a structure according to the following formula:

[0142] The term “niacinamide derivative” preferably denotes a compound wherein the amide group of the niacinamide is secondary or tertiary, preferably substituted by one or two alkyl groups independently chosen from C1-C4 alkyl groups and / or wherein at least one hydrogen atom of the pyridine group is replaced by a C1-C4 alkyl group.

[0143] Preferably, the compound chosen from niacinamide and its derivatives is niacinamide. Mention can be made for example of the product Niacinamide PC® marketed by DSM NUTRITIONAL PRODUCTS.

[0144] Preferably, the composition comprises from 0.1% to 20% by weight of the compound chosen from niacinamide and its derivatives relative to the total weight of the composition, preferably from 0.5% to 15% by weight, more preferably from 0.8% to 10% by weight.

[0145] The composition used according to the invention can be in any dosage forms normally used in the cosmetic field. It can particularly be in the form of a gelled aqueous or hydroalcoholic solution, an oil-in- water or water-in-oil or multiple gelled emulsion, or in the form of a serum or a paste. It can be of pasty, or more or less fluid consistency.

[0146] Thus, the composition can comprise all the constituents usually used in the envisaged topical application and administration.

[0147] A composition according to the invention can advantageously be in the form of an emulsion, in particular obtained by dispersing an aqueous phase in a fatty phase (W / O) or a fatty phase in an aqueous phase (O / W), of semi-liquid consistency of the milk type, or of soft, semi-solid consistency of the cream or gel type, or multiple emulsion (W / O / W or O / W / O). These compositions are prepared using routine methods.

[0148] Preferably, the composition according to the invention is applied topically, i.e. on the surface of the skin in question.

[0149] The compositions according to the invention may be applied directly on the skin.

[0150] The composition can be rinsed or not after having been applied on the skin.

[0151] Applications

[0152] The cosmetic compositions covered by the invention can be facial or body care products.

[0153] The compositions according to the invention are cosmetic compositions intended for skin care, in particular for oily skins. These compositions are thus intended to be applied onto the skin.

[0154] According to another subject matter, the present invention also relates to a cosmetic treatment method for skin care, in particular for oily skin, comprising the application of a cosmetic composition according to the invention.

[0155] “Care” means a non-therapeutic treatment that can produce a cosmetic effect without preventing or correcting a pathological dysfunction of the skin.

[0156] The invention will now be illustrated in the following non-limiting examples. Unless specified otherwise, the % are expressed by weight relative to the total weight of the composition (% w / w).

[0157] The compositions are prepared using routine cosmetic composition formulation methods.

[0158] Example: Evaluation of the glossiness / mattness of a composition according to the invention (C1) and comparative compositions (CC1*, CC2* and CC3*) Formulation C1 according to the invention and comparative formulations CC1* to CC3* are as follows: [Table 1]

[0159] Evaluation protocol

[0160] The above compositions were evaluated by a panel of 10 people, with the naked eye, in their primary container (i.e. in the form of a jar). A scoring according to the glossy appearance on a scale of 0 to 5, “0”: least glossy to “5”: glossiest, and according to the + / - slushy texture of each of the compositions C1 , CC1*, CC2* and CC3*, was performed. Results

[0161] The results are as follows:

[0162] [Table 2] Conclusion:

[0163] The composition C1 according to the invention has a low glossiness (= high mattness) while having a slushy / water ice texture, which corresponds to the features sought by consumers, in particular in the context of compositions for the prevention and / or treatment of oily skins, because they provide a light / fresh texture sensation.

Claims

CLAIMS1. Composition, in particular a cosmetic composition, comprising: i) at least one polymer obtained from (Ci-C6)alkyl acrylic acid or one of its salts, comprising a repetition of units of formula (I):[Chem 1]-[CHIR’J-CIffMCOOWHH formula (I) wherein:* R1and R2, identical or different, represent a hydrogen atom or a (C1-C6)alkyl group such as methyl, preferably R1and R2represent a hydrogen atom,* M+represents a cationic counterion, preferably an alkali, alkaline earth metal or ammonium, more preferably M+represents an alkali metal such as sodium; ii) less than 0.15% by weight relative to the total weight of the composition, of hyaluronic acid and / or one of its salts, and iii) at least one hydrophilic gelling agent different from the polymer obtained from (C1- C6)alkyl acrylic acid or one of its salts and from hyaluronic acid and / or its salts.

2. Composition according to claim 1 , wherein the polymer obtained from (CrC6)alkyl acrylic acid or one of its salts i) comprises a repetition of units of formula (I) and unit(s) of formula (II):-[CH(R1)-C(R2)(COO-M+)]- (I) and -[CH(R1)-C(R2)(COOH)]- (II) formulas (I) and (II) wherein R1and R2, and M+are as defined in claim 1.

3. Composition according to claim 1 or 2, wherein the polymer obtained from (C1-C6)alkyl acrylic acid or one of its salts i) comprises a repetition of units of formula (I) and unit(s) of formula (II):-[CH(R1)-C(R2)(COO-M+)]y- (l) and -[CH(R1)-C(R2)(COOH)]z- (II) formulas (I) and (II) wherein R1and R2, and M+are as defined hereinabove, and* y represents an integer greater than or equal to 2;* z equals zero, or represents a number greater than zero; preferably y > z.

4. Composition according to one of the preceding claims, wherein the polymer obtained from (C1-C6)alkyl acrylic acid or one of its salts i) comprises, preferably consisting of, a repetition of units of formula (I) and unit (II) wherein R1and R2represent a hydrogen atom or a (C C4)alkyl group such as methyl, preferably a hydrogen atom.

5. Composition according to one of the preceding claims, wherein the polymer obtained from (Ci-C6)alkyl acrylic acid or one of its salts i) is chosen from alkali, alkaline earth metal or ammonium polyacrylates, preferably alkali or alkaline earth metal polyacrylates, more preferably sodium acrylates, more preferably carbomers, preferably S carbomer or sodium carbomer.

6. Composition according to one of the preceding claims, wherein the polymer obtained from (C1-C6)alkyl acrylic acid or one of its salts i) is present in a quantity of at least 0.5% by weight, more particularly at least 0.7% by weight, and more preferably at least 1% by weight relative to the total weight of the composition, and / or at most 10% by weight, preferably at most 5% by weight, and more preferably at most 3% by weight relative to the total weight of the composition; preferably from 0.5% to 5% by weight, preferably from 0.7% to 4% by weight, more preferably from 1% to 3% by weight, even more preferably from 1% to 2% relative to the total weight of the composition.

7. Composition according to one of the preceding claims, wherein the hyaluronic acid salt is chosen from potassium hyaluronate and sodium hyaluronate, preferably is sodium hyaluronate.

8. Composition according to one of the preceding claims, wherein hyaluronic acid or one of its salts ii) is present in a quantity of less than 0.13% by weight of dry matter and preferably at least 0.0001 % by weight of dry matter relative to the total weight of the composition; preferably from 0.0001 % to 0.15% by weight of dry matter relative to the total weight of the composition, preferably from 0.001 % to 0.13% by weight of dry matter, more preferably from 0.05% to 0.12% by weight of dry matter relative to the total weight of the composition.

9. Composition according to one of the preceding claims, wherein the hydrophilic gelling agent iii) is chosen from polymers with a sulfonic group, polysaccharides, and mixtures thereof.

10. Composition according to one of the preceding claims, wherein the hydrophilic gelling agent iii) is present at a concentration ranging from 0.01% to 5%, and preferably from 0.1% to 3%, and even more preferably from 0.1% to 1% by weight relative to the total weight of said composition.

11. Composition according to one of the preceding claims, wherein the hydrophilic gelling agent iii) is a polymer with a sulfonic group chosen from homopolymersof 2-acrylamido-2-methyl propane sulfonic acid, copolymers of 2-acrylamido-2- methylpropane sulfonic acid and acrylamide, copolymers of 2-acrylamido 2-methyl propane sulfonic acid and vinylpyrrolidone or vinylformamide, copolymers of 2-acrylamido 2-methyl propane sulfonic acid and sodium acrylate, copolymers of 2-acrylamido 2-methyl propane sulfonic acid and hydroxyethyl acrylate, copolymers of 2-acrylamido 2-methyl propane sulfonic acid and ethoxylated cetearyl methacrylate, optionally crosslinked, their salts, and mixtures thereof.

12. Composition according to one of the preceding claims, wherein the hydrophilic gelling agent iii) is a polysaccharide chosen from fructans, gellans, glucans, amylose, amylopectin, glycogen, pullulan, dextrans, celluloses and their derivatives, in particular methylcelluloses, hydroxyalkylcelluloses, ethylhydroxyethylcelluloses and carboxymethylcelluloses, mannans, xylans, lignins, arabans, galactans, galacturonans, alginate-based compounds, chitin, chitosans, glucoronoxylans, arabinoxylans, xyloglucans, glucomannans, pectic acids and pectins, arabinogalactans, carrageenans, agars, gums, tragacanth gums, ghatti gums, karaya gums, carob gums, galactomannans such as guar gums and their non-ionic derivatives, in particular hydroxypropyl guar, and ionic derivatives, biopolysaccharide gums of microbial origin, in particular scleroglucan or xanthan gums or polyholosides comprising fucose, galactose and galacturonic acid units, mucopolysaccharides, and in particular chondroitin sulfates and mixtures thereof; preferably chosen from xanthan gum, algianate-based compounds, in particular sodium alginate, sceroglucan gum, guar gum and mixtures thereof, preferably xanthan gum.

13. Composition according to one of the preceding claims, which comprises a physiologically acceptable medium comprising water and optionally one or more water- miscible solvent(s), and optionally at least one fatty substance such as one or more oil(s).

14. Composition according to one of the preceding claims, which further comprises at least one cosmetic active agent that is an agent for preventing and / or treating oily skins, preferably chosen from anti-acne active agents, sebum-regulating active agents and active agents intended to limit skin glossiness, preferably chosen from silica, in particular in the form of microspheres, glycyrrhizic acid and its salts such as dipotassium glycyrrhizate, and mixtures thereof.

15. Cosmetic treatment method for skin care, in particular for oily skin, comprising the application of a cosmetic composition according to one of the preceding claims.

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