COSMETIC COMPOSITIONS WITH IMPROVED RESISTANCE TO WEAR AND TRANSFER

Abstract

COSMETIC COMPOSITIONS WITH IMPROVED WEAR AND TRANSFER RESISTANCE A cosmetic composition may be used to improve wear and transfer resistance. The cosmetic composition may include (i) a hydrogel dispersion in oil, the hydrogel having an ethylenic polymer core, and (ii) a transfer-resistant film-forming material, (iii) a hydrophilic active agent incorporated into the ethylenic polymer core, or (iv) both (ii) and (iii). The dispersion may include a plurality of ethylenic polymer core particles dispersed in an oily substance that is liquid at 20 °C and 1 atmosphere and also includes a polymer stabilizing agent. Figure for abbreviation: none

Description

Title of the invention: COSMETIC COMPOSITIONS WITH IMPROVED RESISTANCE TO WEAR AND TRANSFER technical field

[0001] This disclosure relates to a cosmetic composition, and in particular to cosmetic compositions exhibiting improved resistance to wear and transfer. BACKGROUND

[0002] Consumers want long-lasting cosmetic products, such as lipsticks, foundations, and mascaras, to have excellent non-transfer properties with respect to olive oil, acetic acid, and saliva, and to exhibit consistent wear, such as no smudging. To achieve these properties, such compositions are often devoid of skin-conditioning ingredients (or contain very few) because they disrupt the film properties, reducing wear resistance. Incorporating many skin-beneficial ingredients and actives into these formulas is challenging. Furthermore, controlling the release of such skin-beneficial ingredients once incorporated into the products can be very difficult. These long-wear products are also expected to offer certain aesthetic properties.For example, lipsticks are supposed to be comfortable to wear and offer a glossy, matte, or satin finish to the lips as desired. Finally, it can prove difficult to offer such characteristics in a product intended for extended wear if the product also requires the provision of volume. BRIEF SUMMARY

[0003] To achieve these objectives, a cosmetic composition may be provided. The cosmetic composition may be a lip cosmetic. The cosmetic composition may include a hydrogel dispersion in oil. The dispersion may include an ethylenic polymer core particle obtained by polymerization of monomers of: (a) (CrC4)alkyl (CrC4)(alkyl)acrylate in which the CrC4 alkyl group(s) are optionally substituted by one or more hydroxy groups and / or (di)(Ci-C4)amino groups; (b) poly[oxy (CrC4)alkylene] (CrC4)(alkyl)acrylate; and / or (c) ethylenic monomers comprising one or more groups selected from carboxy, anhydride, phosphoric acid, and sulfonic acid.The dispersion may include a polymer stabilizing agent selected from (d) ethylenic polymers of (Ci-C6) (alkyl) acrylate monomers of (C3-Ci2) cycloalkyl and / or (e) copolymers of ethylenic monomers of (Ci-C6) (C3-Ci2) cycloalkyl (alkyl)acrylate and (CrC4)alkyl (CrC4). (alkyl)acrylate. The dispersion may include a fatty substance that is liquid at 20 °C and 1 atmosphere.

[0004] In some embodiments, the ethylenic polymers of (Ci-C6) (alkyl)acrylate of (C3-C12) cycloalkyl monomers may be ethylenic homopolymers of (Ci-C6) (alkyl) acrylate of (C3-C12) cycloalkyl. In some embodiments, the ethylenic polymers of (Ci-C6) (alkyl) acrylate of (C3-C12) cycloalkyl monomers may be ethylenic homopolymers of (C3-C12) cycloalkyl (meth)acrylate. In some embodiments, the copolymers of the ethylenic monomers of (Ci-C6) (C3-C12) cycloalkyl (alkyl)acrylate and (C1-C4) alkyl (C1-C4) (alkyl)acrylate can be copolymers of (C3-C12) cycloalkyl (meth)acrylate and (Cl- C4) alkyl (meth)acrylate.

[0005] In some embodiments, the fatty substance is a volatile hydrocarbon. In some environments, the volatile hydrocarbon is isododecane.

[0006] In some embodiments, the dispersion may also include an additional particle. The additional particle may have a different chemical structure from that of the ethylenic polymer core particle, the additional particle being obtained by polymerization of monomers selected from the ethylenic monomers of points a), b) and / or c).

[0007] The cosmetic composition may include a transfer-resistant film-forming material. In some embodiments, the transfer-resistant film-forming material includes silicone pullulan, silicone norbornene, a sequenced pseudocopolymer, an MQ resin, a propyl siloxane T resin, an MQT resin, or a combination thereof. In some embodiments, the film-forming material includes an MQ resin, a polyester, a trimethylsiloxymethacrylate copolymer, or a dimethicone copolymer.

[0008] The cosmetic composition may include a hydrophilic active agent incorporated into the ethylenic polymer core particle. In some embodiments, the hydrophilic active agent is a moisturizing agent, a desquamating agent, a humectant, an anti-aging agent, a healing agent, an antibacterial agent, a texture modifier, a colorant, a pigment modifier, a skin lightening agent, a vitamin, a bulking agent, or a combination thereof.

[0009] In some embodiments, the cosmetic composition may include other materials. In some embodiments, the cosmetic composition may include water, a colorant, an antioxidant, an ultraviolet (UV) filter, a mattifying agent, or a combination thereof.

[0010] In some embodiments, the cosmetic composition, external to the core particle, may include a hydrophilic active agent. In some embodiments, The hydrophilic active agent is a moisturizing agent, a desquamating agent, a humectant, an anti-aging agent, a mattifying agent, a healing agent, an antibacterial agent, a texture modifier, a colorant, a pigment modifier, a skin brightening agent, a vitamin, a bulking agent, or a combination thereof. DETAILED DESCRIPTION

[0011] To overcome all or part of the problems with conventional techniques, it is possible to provide a cosmetic composition that includes (i) a dispersion and (ii) a transfer-resistant film-forming material, a hydrophilic active agent incorporated into an ethylene polymer core particle of the dispersion, or both. It is understood that transfer resistance requires a transfer-resistant film-forming material.

[0012] As used herein, the term "alkyl radical" means a linear or branched C1-C8 saturated hydrocarbon-based group, in particular C1-C6, preferably C1-C4 such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl and tert-butyl.

[0013] As used herein, the radical expression "C9-C22 alkyl" means a linear or branched saturated hydrocarbon-based group, preferably linear in C9-C22, in particular in C10-C20, preferably in C12-C18, more preferably in C12-C16, such as lauryl (C12), myristyle (C14), hexadecyl (C16), stearyl (C18), arachidyl (C20) or behenyl (C22); more particularly, the C9-C18 alkyl is a linear or branched, preferably linear, saturated C9-C18 hydrocarbon-based group.

[0014] As used here, the term radical “alkylene” refers to a linear or branched divalent saturated group based on C1-C8 hydrocarbons, in particular Ci-C6, preferably Ci-C4 such as methylene, ethylene or propylene.

[0015] As used herein, the expression "(di) (Ci-CJ amino (alkyl)" denotes an amino -NH2 radical; a Ci-C4 alkylamino radical such as methylamino ethylamino; a CrC4 di-alkylamino radical such as dimethylamino, diethylamino, preferably dimethylamino.

[0016] As used here, the expression "anhydrous" dispersion or composition means a dispersion or composition containing less than 2% by weight of water, or even less than 0.5% of water, and in particular free from water; where appropriate, these small quantities of water may in particular be supplied by ingredients of the composition which may contain residual amounts of it.

[0017] As used herein, the term "aryl" means a fused or unfused monocyclic or polycyclic carbon-based group comprising 6 to 22 carbon atoms, and in which at least one ring is aromatic. In some embodiments, the aryl radical designates an unsaturated cyclic aromatic radical, monocyclic or bicyclic, fused or unfused, comprising from 6 to 12 carbon atoms; preferably, the aryl group comprises 1 ring and contains 6 carbon atoms, such as phenyl. In some embodiments, the aryl radical is a phenyl, a biphenyl, a naphthyl, an indenyl, an anthracenyl, or a tetrahydroxydronaphthyl.

[0018] As used here, the radical expression "aryloxy" designates an aryl-oxy, that is to say an aryl-O- radical, with aryl as defined above, preferably phenoxy.

[0019] As used herein, the expression radical “aryl(CrC4)alkoxy” denotes an aryl-(Ci-C4)alkyl-O- radical, preferably benzoxy.

[0020] As used herein, the term "cyclic" radical refers to a saturated or unsaturated, aromatic or non-aromatic hydrocarbon-based cyclic group comprising 1 to 3 rings, preferably 1 ring, and comprising 3 to 10 carbon atoms, such as cyclohexyl or phenyl.

[0021] As used herein, the term "cycloalkyl radical" means a saturated hydrocarbon-based cyclic group comprising 1 to 3 rings, preferably 2 rings, and comprising 3 to 12 carbon atoms, preferably between 5 and 10 carbon atoms, such as cyclopentyl, cyclohexyl, cycloheptyl, norbomyl or isobornyl, the cycloalkyl radical being able to be substituted by one or more Ci-C4 alkyl groups such as methyl; preferably, the cycloalkyl radical is an isobornyl group.

[0022] As used herein, the term "insoluble" monomer means any monomer whose polymer, in particular Thomopolymer, is not in soluble form, i.e., not completely dissolved at a concentration greater than 5 wt% at room temperature (20 °C) in said hydrocarbon-based liquid medium consisting of iii) hydrocarbon-based liquid fats. However, "insoluble" monomers may, as monomers, be soluble in the hydrocarbon-based liquid medium consisting of hydrocarbon-based liquid fats iii) of the dispersion, it being understood that they become insoluble after polymerization.

[0023] As used herein, the term "soluble monomer" refers to any monomer whose polymer, in particular Thomopolymer, is soluble, at 5% by weight, at 20 °C and atmospheric pressure in the hydrocarbon-based liquid medium consisting of liquid hydrocarbon-based fatty substances iii) of the dispersion. The polymer, in particular Thomopolymer, is completely dissolved in the carbon-based liquid medium, visually at 20 °C, i.e., no deposit, precipitate, agglomerate, or insoluble sediment is visually observed.

[0024] As used herein, the expression "ethylenic copolymer" means a polymer resulting from the polymerization of different monomers, in particular at least two different monomers. Preferably, the ethylenic copolymer of the invention is derived from two or three different monomers, more preferably from two different monomers.

[0025] As used herein, the expression "ethylenic homopolymer" means a polymer resulting from the polymerization of identical monomers.

[0026] As used herein, the expression "ethylenic monomer" means an organic compound including one or more conjugated or non-conjugated unsaturations of the type >C=C<, which is capable of polymerizing.

[0027] As used herein, the term "fatty substance" means an organic compound that is immiscible in water at ordinary room temperature (25 °C) and atmospheric pressure (760 mmHg) (solubility less than 5%, preferably 1%, and even more preferably 0.1%). Fatty substances have in their structure at least one hydrocarbon chain comprising at least six carbon atoms or a sequence of at least two siloxane groups. In addition, they are generally soluble in organic solvents under the same conditions of temperature and pressure, for example, ethanol, ether, liquid petroleum, or decamethylcyclopentasiloxane. These fatty substances are neither polyoxyethylenated nor polyglycerolated. They differ from fatty acids, since salified fatty acids constitute soaps, which are generally soluble in an aqueous medium.

[0028] As used herein, the expression "liquid" fatty substance refers in particular to a fatty substance that is liquid at 25 °C and 1 atmosphere; preferably, said fatty substance has a viscosity less than or equal to 7000 centipoise at 20 °C.

[0029] As used herein, the expression "hydrocarbon-based" oily substance means an oily substance comprising at least 50% by weight, in particular from 50% to 100% by weight, for example from 60% to 99% by weight, or even from 65% to 95% by weight, or even from 70% to 90% by weight, relative to the total weight of said oily substance, of a carbon-based compound, having an overall Hansen solubility parameter of less than or equal to 20 (MPa)l / 2, or a mixture of such compounds.

[0030] As used here, the overall solubility parameter θ according to the Hansen solubility space is defined in the article "Solubility parameter values" by Grulke in the book "Polymer Handbook", 3rd edition, Chapter VII, pages 519-559, by the relation θ = (dD² + dP² + dH²)l / 2 in which: - dD characterizes the London dispersion forces arising from the formation of induced dipoles during molecular impacts, - dP characterizes the Debye interaction forces between permanent dipoles, dH characterizes the specific interaction forces (such as hydrogen bonding, acid / base, donor / acceptor, etc.); The definition of solvents in Hansen's three-dimensional solubility space is described in Hansen's article: "The three-dimensional solubility parameters", J. Paint Technol. 39, 105 (1967).

[0031] As used here, the term "oil" means a fatty substance that is liquid at room temperature (25 °C) and atmospheric pressure.

[0032] As used herein, the expression "hydrocarbon-based oil" means an oil formed essentially, or even composed, of carbon and hydrogen atoms, and possibly of oxygen and nitrogen atoms, and containing no silicon or fluorine atoms. It may contain hydroxy, ester, ether, carboxylic acid, amine and / or amide groups.

[0033] As used herein, the term "volatile oil" means an oil (or a non-aqueous medium) that can evaporate upon contact with keratinous materials, in particular the skin, in less than one hour, at room temperature and atmospheric pressure. The volatile oil is a volatile cosmetic oil, which is liquid at room temperature, having in particular a non-zero vapor pressure, at room temperature and atmospheric pressure, having in particular a vapor pressure ranging from 0.13 Pa to 40,000 Pa (103 to 300 mmHg), preferably ranging from 1.3 Pa to 13,000 Pa (0.01 to 100 mmHg) and preferably ranging from 1.3 Pa to 1300 Pa (0.01 to 10 mmHg).

[0034] As used here, the expression "non-volatile oil" means an oil having a vapor pressure of less than 0.13 Pa at ambient temperature and atmospheric pressure.

[0035] As used herein, the expression "silicone oil" means an oil comprising at least one silicon atom and in particular, at least one Si-O group. Silicone oil may be volatile or non-volatile.

[0036] As used herein, the term "dispersant" refers to a compound that can protect dispersed particles from agglomeration or flocculation. This dispersant may be a surfactant, an oligomer, a polymer, or a mixture of several of these, having one or more functionalities with a strong affinity for the surface of the ethylenic polymer core particles to be dispersed; in particular, it may bind physically or chemically to the surface of the pigments. These dispersants also contain at least one functional group that is compatible with the continuous medium or soluble in it. The agent may be charged: it may be anionic, cationic, zwitterionic, or neutral.

[0037] As used herein, the term "submicron" or "submicron" refers to pigments having a particle size that has been micronized by a micronization process and having an average particle size of less than one micrometer (qm), in particular between 0.1 and 0.9 qm and preferably between 0.2 and 0.6 qm.

[0038] As used herein, the term "heteroaryl" means a fused or unfused monocyclic or polycyclic group having from 5 to 22 links, possibly cationic, comprising from 1 to 6 heteroatoms selected from nitrogen, oxygen, sulfur and selenium, of which at least one ring is aromatic; Preferably, a heteroaryl radical is chosen from acridinyl, benzimidazolyl, benzobistriazolyl, benzopyrazolyl, benzopyridazinyl, benzoquinolyl, benzothiazolyl, benzotriazolyl, benzoxazolyl, pyridinyl, tetrazolyl, dihydrothiazolyl, imidazopyridyl, imidazolyl, indolyl, isoquinolyl, naphthoimidazolyl, naphthoxazolyl, naphthopyrazolyl, oxadiazolyl, oxazolyl, oxazolopyridyl, phenazinyl, phenoxazolyl, pyrazinyl, pyrazolyl, pyrilyl, pyrazoyltriazyl, pyridyl, pyridinoimidazolyl, pyrrolyl, quinolyl, tetrazolyl, thiadiazolyl, thiazolyl, thiazolopyridinyl, thiazoylimidazolyl, thiopyrylyl, triazolyl, xanthyl and the ammonium salt thereof.

[0039] As used herein, the term "heterocyclic" means a monocyclic or polycyclic aromatic or non-aromatic radical, fused or unfused, having from 5 to 22 links that may contain one or more unsaturations, including from 1 to 6 heteroatoms selected from nitrogen, oxygen and sulfur.

[0040] As used herein, the term "heterocycloalkyl" means a saturated heterocyclic radical such as morpholinyl, piperazinyl or piperidyl.

[0041] As used herein, the expression "salt of organic or mineral acid" means more particularly salts selected from a salt derived from a halogenated acid such as i) hydrochloric acid HCl, ii) hydrobromic acid HBr, iii) sulfuric acid H2SO4, iv) alkylsulfonic acids: Alk-S(O)2OH such as methylsulfonic acid and ethylsulfonic acid; v) arylsulfonic acids: Ar-S(O)2OH such as benzenesulfonic acid and toluenesulfonic acid; optionally hydroxylated carboxylic acids such as vi) citric acid; vii) succinic acid; viii) tartaric acid; ix) lactic acid; x) acetic acid CH3C(O)OH; xi) alkoxysulfinic acids: Alk-OS(O)OH such as methoxysulfinic acid and ethoxysulfinic acid; xii) aryloxysulfinic acids such as toluenoxysulfinic acid and phenoxysulfinic acid; xiii) phosphoric acid H3PO4; xiv) triflic acid CF3SO3H and xv) tetrafluoroboric acid HBF4;More preferably, the salts of organic or mineral acids are chosen from among the salts of halogenated acids such as HCl and HBr, and of carboxylic acids possibly hydroxylated such as vi) citric acid; vii) succinic acid; viii) tartaric acid; ix) lactic acid; x) acetic acid CH3C(O)OH.

[0042] As used herein, the expression "anionic counterion" means an anion or anionic group derived from a salt of an organic or mineral acid that counterbalances the charge of the molecule in question; more specifically, the anionic counterion is chosen from: i) halides such as chloride or bromide; ii) nitrates; iii) sulfonates, including Ci-C6 alkylsulfonates: Alk-S(O)2O- such as methylsulfonate or mesylate and ethylsulfonate; iv) arylsulfonates: Ar-S(O)2O- such as benzenesulfonate and toluenesulfonate or tosylate; v) citrate; vi) succinate; vii) tartrate; viii) lactate; ix) alkyl sulfates: Alk-OS(O)O- such as methyl sulfate and ethyl sulfate; x) aryl sulfates: Alc-OS(O)O- such as benzene sulfate and toluene sulfate; xi) alkoxy sulfates: Alk-OS(O)2O- such as methoxy sulfate and ethoxy sulfate; xii) aryloxy sulfates: Ar-OS(O)2O-, xiii) phosphates O=P(OH)2-O-, O=P(O-)2-OH, O=P(O-)3, H0-[P(O)(O-)]wP(O)(O-)2 with w being an integer; xiv) acetate; xv) triflate and xvi) borates such as tetrafluoroborate, xvii) disulfate (O=)2S(O-)2 or SO42- and monosulfate HSO4-;The anionic counterion, derived from a salt of organic or mineral acid, ensures the electrical neutrality of the molecule; thus, it is understood that when the anion comprises several anionic charges, then the same anion can serve for the electrical neutrality of several cationic groups in the same molecule or can serve for the electrical neutrality of several molecules; for example, a molecule containing two cationic groups can contain two anionic counterions "with a single charge" or contain one anionic counterion "with a double charge" such as (O=)2S(O-)2 or O=P(O-)2-OH.

[0043] In addition, the addition salts that may be used in the context of this disclosure are in particular chosen from among cosmetically acceptable addition salts such as alkalizing agents as defined below, for example alkali metal hydroxides such as sodium hydroxide, potassium hydroxide, aqueous ammonia, amines or alkanolamines.

[0044] For the purposes of this disclosure, and unless otherwise indicated:

[0045] The "aryl" or "heteroaryl" radical, or the aryl or heteroaryl part of a radical, may be substituted by at least one substituent attached to a carbon atom, chosen from:

[0046] * an alkyl radical in the C6-C1 and, preferably, in the C4-C1, possibly substituted by one or more radicals chosen from hydroxyl, alkoxy in Ci-C2, (poly)hydroxyalkoxy in C2-C4, acylamino, amino substituted by two alkyl radicals in CrC4 which may be identical or different, possibly bearing at least one hydroxyl group, or the two radicals possibly forming, with the nitrogen atom to which they are attached, a saturated or unsaturated heterocycle, possibly substituted, of 5 to 7 links and, preferably, of 5 or 6 links, possibly comprising nitrogen or a non-nitrogenous heteroatom;

[0047] * halogen;

[0048] * hydroxyl;

[0049] * C1-C2 alkoxy;

[0050] * (poly)hydroxyalkoxy at C2-C4;

[0051] * amino ;

[0052] * an amino radical substituted by one or two identical C1-C6 alkyl radicals or different, possibly bearing at least one hydroxyl group;

[0053] * acylamino (-NR-C(O)-R') wherein the radical R is a hydrogen atom or an alkyl radical in CrC4 possibly bearing at least one hydroxyl group and the radical R' is an alkyl radical in C1-C2;

[0054] * carbamoyl ((R)2N-C(O)-) in which the R radicals, which may be identical or different, represent a hydrogen atom or an alkyl radical in Ci-C4 possibly bearing at least one hydroxyl group;

[0055] * alkylsulfonylamino [R'-S(O)2-N(R)-] in which the radical R represents an atom hydrogen or a Ci-C4 alkyl radical possibly bearing at least one hydroxyl group and the R' radical represents a CrC4 alkyl radical or a phenyl radical;

[0056] * an aminosulfonyl radical ((R)2N-S(O)2-) in which the R radicals, which can be identical or different, represent a hydrogen atom or an alkyl radical in CrC4 possibly bearing at least one hydroxyl group;

[0057] * carboxylic acid or salt form (preferably with an alkali metal or a substituted or unsubstituted ammonium);

[0058] * cyano ;

[0059] * nitro or nitroso;

[0060] * polyhaloalkyl, preferably trifluoromethyl;

[0061] * the cyclic or heterocyclic part of a non-aromatic radical can be substituted by at least one substituent chosen from the following groups: a) hydroxyl; b) alkoxy in CrC4, (poly)hydroxyalkoxy in C2-C4; c) alkyl in Ci-C4;

[0062] * alkylcarbonylamino [RC(O)-N(R')-] in which the radical R' is an atom of hydrogen or an alkyl radical in CrC4 possibly bearing at least one hydroxyl group, and the radical R is an alkyl radical in C1-C2 or an amino radical possibly substituted by one or two alkyl groups in Ci-C4> which may be identical or different, themselves possibly bearing at least one hydroxyl group, said alkyl radicals being able to form, with the nitrogen atom to which they are attached, a heterocycle of 5 to 7 links, saturated or unsaturated, possibly substituted, possibly comprising at least one other nitrogen or non-nitrogenous heteroatom;

[0063] * alkylcarbonyloxy [RC(O)-O-] in which the radical R is a Cr alkyl radical C4 or an amino group possibly substituted by one or two identical or different Cr C4 alkyl groups themselves possibly bearing at least one group hydroxyl, said alkyl radicals being able to form with the nitrogen atom to which they are attached a saturated or unsaturated heterocycle, possibly substituted with 5 to 7 links, possibly comprising at least one other nitrogen or non-nitrogenous heteroatom;

[0064] * alkylcarbonyl (RGC(O)-) in which the radical R is a Ci-C4 alkyl radical, G is an oxygen atom or an amino group possibly substituted by an alkyl group in CrC4 itself possibly bearing at least one hydroxyl group, said alkyl radical being able to form with the nitrogen atom to which it is attached a saturated or unsaturated heterocycle, possibly substituted with 5 to 7 links, possibly comprising at least one other nitrogen or non-nitrogenous heteroatom;

[0065] - a cyclic or heterocyclic radical, or a non-aromatic part of a radical aryl or heteroaryl, can also be substituted by one or more oxo groups; and

[0066] - a hydrocarbon-based chain is unsaturated when it includes one or more double bonds and / or one or more triple bonds.

[0067] As used here, the expression "at least one" is equivalent to "one or more". As used here, the limits of a range of values ​​are included in that range, in particular in the expressions "between... and..." and "from... to...". As used here, the expression "inclusive" for a range of concentrations means that the limits of that range are included in the defined interval.

[0068] As disclosed herein, a cosmetic composition may be supplied which includes (i) a dispersion and (ii) a transfer-resistant film-forming material, a hydrophilic active agent incorporated into an ethylenic polymer core particle of the dispersion, or both. Dispersion.

[0069] The dispersion can be understood as a hydrogel dispersion in oil. The dispersion contains three components: (a) an ethylenic polymer core particle, (b) a fatty substance that is liquid at 20 °C and 1 atmosphere and (c) a polymer stabilizing agent (“stabilizers”).

[0070] In some embodiments, the dispersion may be present from at least about 5% by weight on the basis of the total weight of the cosmetic composition.

[0071] The dispersion, combined with a wide range of film-forming materials, can remarkably improve transfer resistance while maintaining wear resistance. Furthermore, the dispersion is a Pickering dispersion, and the core particles form a hydrogel. By incorporating hydrophilic materials into the hydrogel, it swells, thus increasing its volume.

[0072] Polymer particles

[0073] To obtain the dispersion, particular monomers can be polymerized which are capable of forming the polymer “core” in the presence of a polymer statistical stabilizer comprising a small amount of a soluble part and a large amount of an insoluble part in the dispersion medium, i.e., in the liquid fatty substance(s) based on hydrocarbons.

[0074] In some embodiments, the cosmetic composition includes a plurality of ethylenic polymer core particles. In some embodiments, each ethylenic polymer core particle has a unique composition. In some embodiments, the plurality of ethylenic polymer core particles includes at least two particles of different compositions.

[0075] In certain embodiments, the ethylenic polymer core particles of the dispersion may consist of ethylenic monomers of:

[0076] aj (Ci-C4)alkyl (Ci-C4)(alkyl)acrylate in which the CrC4 alkyl group(s) are optionally substituted by one or more groups selected from hydroxy and (di)(Ci-C4)amino; and / or

[0077] a2) poly[oxy(CrC4)alkylene] (CrC4)(alkyl)acrylate, and

[0078] a3) ethylenic monomers comprising one or more carboxy groups, anhydride, phosphoric acid, sulfonic acid.

[0079] According to another particular embodiment of this disclosure, the ethylenic polymer core particle of the dispersion may be composed of one or more polymer(s) selected from

[0080] bi) at least one copolymer of ethylenic monomers of:

[0081] aj (CrC4)alkyl (CrC4)(alkyl)acrylate in which the CrC4 alkyl group(s) are optionally substituted by one or more groups selected from hydroxy and (di) (Ci-C4 alkyl)amino; and / or

[0082] a2) poly[oxy(CrC4)alkylene] (CrC4)(alkyl)acrylate, and

[0083] a3) ethylenic monomers comprising one or more carboxy groups, anhydride, phosphoric acid, sulfonic acid; and

[0084] b2) at least one ethylenic monomer polymer comprising one or more carboxy groups, anhydride, phosphoric acid or sulfonic acid.

[0085] Preferably, the ethylenic monomers comprising one or more carboxy groups, anhydride, phosphoric acid, sulfonic acid (a3) ​​are chosen from among the ethylenic monomers comprising one or more carboxy groups, more preferably the alkyl acrylic acids in the C1-C4 group) such as (meth)acrylic acid, in particular acrylic acid. Preferably, the ethylenic monomers of (CrC4)alkyl (CrC4)(alkyl)acrylate in which the alkyl in CrC4 denotes an alkyl (meth)acrylate in CrC4 such as ethyl (meth)acrylate or (methyl meth)acrylate, in particular methyl acrylate and ethyl acrylate.

[0086] Preferably, the ethylenic monomers of (Ci-C4)alkyl (Ci-C4)(alkyl)acrylate in which the CrC4 alkyl group(s) are substituted by one or more hydroxy groups, (di)(Ci-C4 alkyl)amino groups, are chosen from the ethylenic monomers of (CrC4) (CrC4)alkyl (alkyl)acrylate substituted by a hydroxy group or by a (di)(CrC4 alkyl)amino group. According to one embodiment, the ethylenic monomers of (Ci-C4) (Ci-C4)alkyl (alkyl)acrylate in which the CrC4 alkyl group(s) are substituted by one or more hydroxy groups are substituted by a hydroxy group such as 2-hydroxyethyl (meth)acrylate, in particular 2-hydroxyethyl acrylate (HEA).

[0087] According to another embodiment, the ethylenic monomers of (Ci-C4)alkyl (Cr C4)(alkyl)acrylate in which the CrC4 alkyl group(s) are optionally substituted by one or more groups selected from hydroxy, and (di)(Cl-C4 alkyl) amino, are substituted by a di(CrC4 alkyl) amino group such as a dimethylamino group such as 3-(dimethylamino)propyl (meth)acrylate and 2-(dimethylamino)ethyl (meth)acrylate.

[0088] According to a particular embodiment of this disclosure, the ethylenic polymer core particles of the dispersion contain Al particles made up of copolymers of ethylenic monomers:

[0089] ai) (Ci-C4)alkyl (Ci-C4)(alkyl)acrylate in which the CrC4 alkyl group(s) are optionally substituted by one or more groups selected from hydroxy and (di)(Ci-C4 alkyl)amino; and / or

[0090] a2) poly[oxy(CrC4)alkylene] (CrC4)(alkyl)acrylate, and

[0091] a3) ethylenic monomers comprising one or more carboxy, anhydride, acid phosphoric acid, sulfonic acid

[0092] preferably consisting of copolymers of ethylenic monomers a1) and a3), or a2) and a3), more preferably a1) and a3).

[0093] According to a particular embodiment of this disclosure, the ethylenic polymer core particles of the dispersion may contain particles A'1 made up of copolymers of ethylenic monomers a'1) (CrC4)alkyl (CrC4) (alkyl)acrylate and a3) ethylenic monomers comprising one or more carboxy, anhydride, phosphoric acid, sulfonic acid.

[0094] According to another particular embodiment of this disclosure, the ethylenic polymer core particles of the dispersion may contain A'2 particles made of copolymers of ethylenic monomers a'1) (CrC4) (alkyl) (CrC4) alkyl acrylate substituted by one or more groups selected from hydroxy, (di) (alkyl CrC4) amino, preferably substituted with a hydroxy group such as 2-hydroxyethylacrylate (HEA) and a3) ethylenic monomers comprising one or more carboxy, anhydride, phosphoric acid, sulfonic acid.

[0095] According to a preferred embodiment, the ethylenic polymer core particles of the dispersion may contain A'1 particles and A'2 particles as described above and more preferably the ethylenic polymer core particles of the dispersion are a mixture of A'1 and A'2 particles, in particular in a mass ratio (mass of A'1 particles / mass of A'2 particles) between 0.3 and 3, more particularly between 0.5 and 2.8, even more preferably between 0.6 and 2.

[0096] According to another particular embodiment of this disclosure, the ethylenic polymer core particles of the dispersion may consist of a mixture of b 1) at least one copolymer of ethylenic monomers of a1) and / or a2) and a3) as described above and b2) at least one polymer of ethylenic monomers comprising one or more carboxy, anhydride, phosphoric acid or sulfonic acid groups.

[0097] According to another particular embodiment of the present disclosure, the ethylenic polymer core particles of the dispersion may consist of a mixture of b 1) at least one copolymer of ethylenic monomers of a1) and a3) as described above and b2) at least one polymer of ethylenic monomers comprising one or more carboxy, anhydride, phosphoric acid or sulfonic acid groups.

[0098] According to a particular form of this disclosure, b2) denotes a homopolymer of ethylenic monomers comprising one or more carboxy, anhydride, phosphoric acid or sulfonic acid groups, preferably comprising a carboxy group, more preferably (meth)acrylic acid and even more preferably acrylic acid.

[0099] The ethylenic polymer core particles can be cross-linked or non-cross-linked.

[0100] According to one embodiment of this disclosure, the ethylenic polymer core particles contain ethylenic copolymers A'1 resulting from the polymerization of formula monomer (I) with ethylenic monomers comprising one or more carboxy, anhydride, phosphoric acid, sulfonic acid a3 groups.

[0101] H2C=C(R)-C(O)-O-R' (I)

[0102] formula (I) wherein: R represents a hydrogen atom or a C1-C4 alkyl group such as methyl, and R' represents a C1-C4 alkyl group such as methyl or ethyl, preferably a C1-C4 alkyl acrylate such as methyl acrylate.

[0103] According to a particular embodiment of this disclosure, the (C1-C4) (Cl- C4) (alkyl) acrylate monomers refer to the C1-C4 alkyl (meth)acrylate monomers, preferably selected from methyl (meth)acrylate, ethyl (meth)acrylate, n-propyl (meth)acrylate, isopropyl (meth)acrylate, n-butyl (meth)acrylate, isobutyl (meth)acrylate, tert-butyl (meth)acrylate and preferably from methyl (meth)acrylate, ethyl (meth)acrylate and even more preferably selected from methyl acrylate and ethyl acrylate.

[0104] According to an advantageous embodiment of this disclosure, the dispersion may include from 60% to 99% by weight, in particular from 70% to 99% by weight, preferably from 80% to 95% by weight, in particular from 85% to 93% by weight of monomers constituting the ethylenic polymer core particles relative to the total weight of polymers contained in said dispersion.

[0105] Preferably, the monomers capable of forming the ethylenic polymer core particles are chosen from among the monomers that are insoluble in the liquid hydrocarbon-based fatty substance(s) of the dispersion.

[0106] In certain embodiments, the insoluble monomers may preferably represent 80 to 100% by weight, more preferably 90 to 100% by weight, even more preferably 95 to 100% by weight and even more particularly 100% by weight, of the total weight of monomers forming the ethylenic polymer core particles.

[0107] Ethylene monomers bearing an acid, anhydride or aryl function:

[0108] The ethylenic polymer core particles may include ethylenic polymers which comprise or consist of ethylenic monomers a3) comprising one or more carboxy, anhydride, phosphoric acid or sulfonic acid groups.

[0109] More specifically, the ethylenic monomers a3) may comprise one or more carboxy, anhydride, phosphoric acid or sulfonic acid groups, selected from (1), (2), (3) and (4):

[0110] (1) R1(R2)C=C(R3)-Acid with R1, R2 and R3 representing a hydrogen atom or a CO2H, H2PO4 or SO3H group, and Acid representing a carboxyl group, phosphoric acid or sulfonic acid, preferably carboxyl, and organic or mineral base salts thereof such as alkali metal or alkaline earth metal salts, such as C(O)ONa or C(O)OK, preferably (1) represents (5) H2C=C(R)-C(O)-OH with R representing a hydrogen atom or a C1-C4 alkyl group such as methyl, and also organic or mineral base salts thereof such as alkali metal or alkaline earth metal salts, such as Na or K;

[0111] (2) H 2 C=C(R)-C(O)-N(R')-Alk-Acid with R and R', which may be identical or different, representing a hydrogen atom or an alkyl group in Ci-C4; Alk represents an alkylene group in CrC6 optionally substituted by at least one group selected from the Acid as defined above and the hydroxyl; and the Acid is as defined above, preferably carboxyl, phosphoric or sulfonic acid, and organic or mineral base salts thereof such as alkali metal or alkaline earth metal salts such as C(O)ONa or C(O)OK;

[0112] (3) Ar-(Ra)C=C(Rb)-Rc with Ra, Rb and Rc, which may be identical or different, representing a hydrogen atom or an alkyl group in Ci-C4, and Ar representing an aryl group, preferably benzyl, possibly substituted by at least one acid group CO2H, H2PO4 or SO3H, preferably substituted by a CO2H or SO3H group, as well as organic or mineral base salts thereof such as alkali metal or alkaline earth metal salts such as C(O)ONa or C(O)OK;

[0113] (4) maleic anhydride of formulas (4a) and (4b): (4a) (4b)

[0114] wherein formulas (4b) and (4b), Ra, Rb and Rc, which may be identical or different, represent a hydrogen atom or a Ci-C4 alkyl group; preferably, Ra, Rb and Rc represent a hydrogen atom. Preferably, the ethylenically unsaturated anhydride monomer has formula (4b) and is more preferably a maleic anhydride.

[0115] More particularly, in certain embodiments, the ethylenic monomer a3) comprising one or more carboxy, anhydride, phosphoric acid or sulfonic acid groups is chosen from (1) and (4), in particular (5) and more particularly (5) and even more preferably an acrylic acid.

[0116] According to another particular embodiment of this disclosure, the polymer constituting the ethylenic polymer core particles and in particular A'1 and / or bl) is an ethylenic acrylate copolymer resulting from the polymerization:

[0117] of at least one monomer a1) of formula (I) as defined above, preferably a CrC4 alkyl acrylate such as methyl acrylate or ethyl acrylate; and

[0118] of at least one monomer a3) of formula (5) and basic organic or mineral salts thereof such as alkali metal or alkaline earth metal salts such as Na or K:

[0119] In certain embodiments, the amount of acrylic acid ranges from 0.01% to 30% by weight relative to the total weight of the copolymer A'1 or b 1, preferably between 0.1% and 20% by weight relative to the weight of the polymer(s) of the ethylenic core particles. More particularly, A'1 or b 1 is a copolymer resulting from the copolymerization of acrylic acid with one or more CrC4 alkyl meth(acrylate) monomers selected in particular from methyl (meth)'acrylate and ethyl (meth)acrylate.

[0120] According to another embodiment, the polymer constituting the ethylenic polymer core particles, and in particular A'1) and / or bl), is an ethylenic acrylate copolymer resulting from the polymerization:

[0121] of at least two different monomers a^: of formula (I) as defined above, preferably of an alkyl (meth)acrylate in Cr C4 such as methyl (meth)acrylate or ethyl (meth)acrylate, and

[0122] of a monomer a3) of formula (5) as defined above, and of organic or inorganic base salts thereof such as alkalis or alkaline earth metals such as Na or K, preferably an acrylic acid. Even more preferably, A'1 and / or bl) result from the polymerization of methyl acrylate, ethyl acrylate and acrylic acid. According to one embodiment, the ethylenic monomer a3) comprising one or more carboxy, anhydride, phosphoric acid, sulfonic acid groups is chosen from crotonic acid, maleic anhydride, itaconic acid, fumaric acid, maleic acid, styrenesulfonic acid, vinylic acid, vinylphosphoric acid, acrylic acid, methacrylic acid, acrylamidopropanesulfonic acid, acrylamidoglycolic acid, and their salts, even more preferably the ethylenic monomer comprising one or more carboxy, anhydride, phosphoric acid, sulfonic acid groups represents acrylic acid and its salts..

[0123] According to one embodiment, the dispersion includes at least one type of particle. In some embodiments, the dispersion includes at least two different types of particles. In some embodiments, the dispersion comprises 2 to 5 types of particles. In some embodiments, the dispersion comprises two different types of particles.

[0124] In some embodiments, the dispersion comprises at least 2 different types of core particles, preferably two types of core particles which are copolymers of different chemical structure derived from monomers aj and / or a2) and a3), in particular which are copolymers of different chemical structure obtained by polymerization of monomers ai) and a3).

[0125] In some embodiments, the various core particles preferably comprise ethylenic (IA) copolymers of:

[0126] a"l) (Ci-C4)alkyl (Ci-C4)(alkyl)acrylate in which the CrC4 alkyl group(s) is / are optionally substituted by one or more groups selected from hydroxy and (di) (Ci-C4 alkyl) amino, preferably hydroxy and / or

[0127] a2) oly[oxy(CrC4)alkylene] (CrC4)(alkyl)acrylate, and

[0128] a3) ethylenic monomers comprising one or more carboxy groups, anhydride, phosphoric acid, sulfonic acid, preferably carboxy groups; preferably ethylenic copolymers of a'i) and a3).

[0129] More particularly, the ethylenic monomers a3) comprising one or more carboxy, anhydride, phosphoric acid, sulfonic acid groups are selected from (1), (2), (3) and (4) as defined above and designate in particular (5) as well as its salts of organic or inorganic bases such as alkalis or alkaline earth metals such as Na or K.

[0130] In certain embodiments, the various core particles preferably comprise i) ethylenic copolymers (l'A) resulting from the polymerization of:

[0131] a"'i) at least one monomer of formula (I') H 2 C=C(R)-C(O)-OR", in which R represents a hydrogen atom or an alkyl group in CrC4 such as methyl, and R" represents an alkyl group in CrC4 substituted by one or more hydroxyl groups (preferably, the alkyl group is substituted at the end of the chain by a hydroxyl group), such as hydroxymethyl or 2-hydroxyethyl; preferably (I1) represents a hydroxyalkyl (meth)acrylate in CrC4 such as hydroxyethyl acrylate; and

[0132] a3") at least one monomer of formula (5) as defined above, as well as its salts of organic or inorganic bases such as alkalis or alkaline earth metals such as Na or K.

[0133] According to yet another particular embodiment, the different particle(s) preferably comprise an ethylenic copolymer (IB) resulting from the polymerization of:

[0134] a2") at least one monomer of formula (I') H 2 C=C(R)-C(O)-O-[ALK-O] p - R', in which R represents a hydrogen atom or a CrC4 alkyl group such as methyl, R' represents a Ci-C4 alkyl group such as methyl or ethyl, preferably a CrC4 alkyl acrylate such as methyl acrylate; ALK represents a Ci-C6 alkylene group optionally substituted by at least one group selected from Acid as defined above and hydroxyl; preferably, ALK represents a C1-C4 alkylene group such as ethylene, propylene, butylene, or isobutylene; more preferably, ALK represents an ethylene group; and p represents an integer greater than or equal to 1 and less than or equal to 100; and

[0135] a3") at least one monomer of formula (5) as defined above, as well as its salts of organic or inorganic bases such as alkalis or alkaline earth metals such as Na or K, preferably an acrylic acid.

[0136] In some embodiments, the core particles may include more than 50% of one monomer and less than 50% of another monomer. For example, the core particles may include more than 75% of 2-hydroxyethyl acrylate and less than 25% of acrylic acid.

[0137] In some embodiments, one or more of the monomers is / are neutralized to less than 100%.

[0138] According to this embodiment, the different particle(s) may preferably comprise ethylenic copolymers (IC) obtained by polymerization of:

[0139] a) (C1-C4) (alkyl) acrylate monomers, preferably of formula (I) as defined above; and / or

[0140] a2) poly[oxy(Ci-C4)alkylene] (CrC4)(alkyl)acrylate, and

[0141] a3) ethylenic monomers comprising one or more carboxy groups, anhydride, Phosphoric acid, sulfonic acid, preferably chosen from (1), (2), (3) and (4) as defined above, more particularly of formula (5) and its salts of organic or inorganic bases such as alkalis or alkaline earth metals such as Na or K and even more preferably an acrylic acid, the ethylenic copolymers (IC) preferably resulting from the polymerization of monomers a"i) and a3), the monomers a"' preferably designating CrC4 alkyl (meth)acrylates, in particular ethyl (meth)acrylate, methyl (meth)acrylate, more preferably methyl acrylate, ethyl acrylate.

[0142] More preferably, the copolymers (IC) result from the polymerization of several different monomers a₁₋₁) and monomers a₃), even more preferably of ethyl (meth)acrylate with methyl (meth)acrylate and monomers a₃), more particularly of methyl acrylate with ethyl acrylate and monomers a₃).

[0143] According to another embodiment, the dispersion comprises at least 2 different types of particles, preferably 2 different types of particles which are chosen from copolymers obtained by polymerization of monomers aj and a3) as defined above, and polymers b2) of ethylenic monomers comprising one or more carboxy, anhydride, phosphoric acid, sulfonic acid groups, preferably carboxy.

[0144] According to this embodiment, the copolymers are preferably chosen from among the copolymers (IC) described above.

[0145] Polymers of ethylenic monomers b2) preferably designate the homopolymer (ID), more preferably a homopolymer of monomers selected from (1), (2), (3) and (4) as defined above, more particularly of monomers of formula (5) as well as its salts of organic or inorganic bases such as alkalis or alkaline earth metals such as Na or K and even more preferably of acrylic acid.

[0146] The ethylenic polymer core particle(s) of the dispersion preferably has a number average size greater than 50 nm.

[0147] The final size of the structure core particles (ID) included in the dispersion may preferably be greater than 50 nm. In particular, an average number size ranging from 50 nm to 600 nm; more particularly ranging from 100 nm to 500 nm, and even more particularly ranging from 150 nm to 400 nm.

[0148] The final size of the nucleus structure particles (IA), (IB), (IC) or (IE) included in the dispersion (A) is preferably greater than 100 nm. In particular, an average number size ranging from 100 nm to 100 pm, and more particularly from 500 nm to 10 pm.

[0149] The average particle size of ethylenic polymer cores is determined by conventional methods known to those skilled in the art. A Malvem NanoZS laser particle size analyzer (particularly suited to submicron dispersions) is used to measure the particle size distribution of these samples. The operating principle of this type of machine is based on dynamic light scattering (DLS), also known as quasi-elastic light scattering (QELS) or photon correlation spectroscopy (PCS). Particle size can also be determined by transmission microscopy.

[0150] The sample is pipetted into a disposable plastic reservoir (four transparent sides, 1 cm side length and 4 mL volume) placed in the measuring cell. The data are analyzed based on a cumulative adjustment method that leads to a unimodal particle size distribution characterized by an intensity-weighted mean diameter d (nm) and a size polydispersity factor Q. The results can also be expressed as statistical data such as D10, D50 (median), D90 and the mode.

[0151] Other particle size measurement techniques can obtain this type of information, such as Nanoparticle Tracking Analysis (NTA), laser scattering (LS), acoustic extinction spectroscopy (AES), spatial filter Doppler velocimetry or image analysis.

[0152] Preferably, the monomers capable of forming the ethylenic core of the particle are chosen from monomers that are insoluble in the hydrocarbon-based liquid medium consisting of liquid hydrocarbon-based fatty substances. In particular, the insoluble monomers represent 100% by weight relative to the total weight of the monomers forming the polymer core of the particle.

[0153] Preferably, the monomers constituting the ethylenic core particles are chosen from among the monomers insoluble in the hydrocarbon-based liquid medium consisting of hydrocarbon liquid fat(s). The insoluble monomers represent, in particular, 80% to 100% by weight, preferably 90% to 100% by weight, more preferably 95% to 100% by weight, and even more preferably 100% by weight, of the total weight of the monomers forming the ethylenic core particle(s).

[0154] Stabilizer s)

[0155] The dispersion also includes one or more polymer stabilizing agents (“stabilizers”). Preferably, only one type of stabilizer is used in the composition.

[0156] According to another particular embodiment, the stabilizer(s) is / are chosen from d) ethylenic homopolymers of (C3-Ci2)cycloalkyl (Cr C6)(alkyl)acrylate monomers, preferably ethylenic homopolymers of (meth)acrylate of C3-Ci2 cycloalkyl; more particularly ethylenic homopolymers resulting from the polymerization of monomers of formula: H 2 C=C(R)-C(O)-OR" with R as defined above, and R" representing a C5-C10 cycloalkyl group such as norbornyl or isobornyl, preferably isobornyl.

[0157] More particularly, the stabilizer(s) may be made up of ethylenic polymers selected from the ethylenic homopolymers d) or d') obtained from the polymerization of monomers having the following formula: H 2 C=C(R)-C(O)-OR"', where R represents a hydrogen atom or an alkyl group in CrC4 such as methyl, and R" represents a cycloalkyl group in C5-CiO such as norbornyl or isobornyl, preferably isobornyl.

[0158] According to a particular embodiment, the stabilizer(s) can be chosen from e) copolymers of ethylenic monomers of ei)(C3-Ci2)cycloalkyl (Ci-C6)(alkyl)acrylate, and of e2) (Ci-C4)alkyl (CrC4)(alkyl)acrylate, preferably copolymers of C3-C[2] alkyl (meth)acrylate and CrC4 alkyl (meth)acrylate.

[0159] According to another embodiment, the stabilizer(s) may be chosen from e') the ethyl copolymers of ej (C3-Ci2)cycloalkyl (Ci-C6)(alkyl)acrylate and e2) (Ci-C4)alkyl (Ci-C4)(alkyl)acrylate, preferably the copolymers el) of C3-Ci2 cycloalkyl (meth)acrylate and e2) of Ci-C4 alkyl (meth)acrylate.

[0160] More specifically, the stabilizer(s) ii) is / are chosen from ethylenic copolymers of e) monomers of formula (IV) and monomers of formula (III): H2C=C(R)-C(O)-O-R’ (III) H2C=C(R)-C(O)-OR” (IV)

[0161] wherein R, which may be the same or different, represents a hydrogen atom or a Ci-C4 alkyl group such as methyl; R', which may be the same or different, represents a CrC4 alkyl group such as methyl or ethyl; and R" represents a C5-C10 cycloalkyl group such as norbornyl or isobornyl, preferably isobornyl.

[0162] According to another particular embodiment of this disclosure, R" represents a C5-Ci0 cycloalkyl group such as norbornyl or isobornyl, preferably isobornyl.

[0163] According to a particular embodiment, the stabilizer(s) may / (may be made up of ethyl copolymers e) selected from ej of (C3-Ci2)cycloalkyl (Ci-C6)(alkyl)acrylate monomer polymers, in particular of formula (IV) and of formula (HD as defined above.

[0164] More particularly, the stabilizer(s) may be made up of ethylenic copolymers e) selected from e'i) nibornyl (meth)acrylate or isobornyl (meth)acrylate, preferably isobornyl (meth)acrylate and e'2) methyl (meth)acrylate or ethyl (meth)acrylate.

[0165] According to another embodiment, the stabilizer(s) can be chosen from the ethylenic copolymers e) obtained from the polymerization ej of a monomer of formula (IV) as defined above and e2) of two different monomers of formula (III) as defined above.

[0166] Preferably, the stabilizer(s) ii) are chosen from copolymers resulting from the polymerization of ei) a monomer of formula (IV) as defined above, chosen in particular from an isobornyl (meth)acrylate and e2) from two different monomers of formula (III) as defined above, in particular different CrC4 alkyl (meth)acrylates, preferably a methyl and ethyl acrylate.

[0167] In particular, the stabilizer may be selected from d) homopolymers of (C3C12)cycloalkyl (Ci-C6)(alkyl)acrylate monomers; and e) statistical copolymers of e1 (C3C12)cycloalkyl (Ci-C6)(alkyl)acrylate and e2 (CrC4)alkyl (CrC4)(alkyl)acrylate with a weight ratio ei / e2 greater than 4. Advantageously, said weight ratio ranges from 4.5 to 19. More advantageously, said weight ratio ei / e2va ranges from 5 to 15 and more preferably said weight ratio ranges from 5.5 to 12.

[0168] More particularly, the stabilizer may be a polymer selected from d') the homopolymer of isobomyl (meth)acrylate and e) the statistical copolymers of ef) isobomyl (meth)acrylate and e2') C1-C4 alkyl (meth)acrylate, preferably present in a weight ratio of isobomyl (meth)acrylate / C1-C4 alkyl (meth)acrylate (ei / e2) greater than 4. Advantageously, said weight ratio ei' / e2' ranges from 4.5 to 19. Advantageously, said weight ratio el' / e2' ranges from 5 to 15 and more preferably said weight ratio ei' / e2' ranges from 5.5 to 14.

[0169] The stabilizing agent(s) as disclosed herein shall / preferably comprise 80% to 100% by weight of monomer soluble in liquid hydrocarbon-based fats (iii), in particular 85% to 95% by weight of soluble monomer, alone or in mixture, relative to the total weight of monomers of the stabilizing agent(s). The stabilizer (co)polymer(s) may / may comprise, in particular, between 0% and 20% by weight, in particular between 5% and 15% by weight of monomer insoluble in liquid hydrocarbon-based fats of the dispersion, alone or in mixture, relative to the total weight of monomers of the stabilizing agent(s).

[0170] Preferably, the stabilizer(s) and the particle(s) have a number average molecular weight (Mn) between 1000 and 1,000,000 g / mol, in particular between 5000 and 500,000 g / mol and even better between 10,000 and 300,000 g / mol.

[0171] According to a particular embodiment, the dispersion may include from 5% to 40% by weight, in particular from 7% to 20% by weight, especially from 8% to 15% by weight and preferably from 9% to 13% by weight of (C3-Ci2)cycloalkyl (Cl C6) (alkyl)acrylate monomers d) or el), relative to the total weight of the polymers contained in said dispersion.

[0172] The stabilizer(s) may be present in the dispersion in an amount of between 0.01% and 30% by weight relative to the total weight of the dispersion, more particularly between 0.1% and 20% by weight, preferably between 0.5% and 10% by weight, more preferably between 0.7% and 4.5% by weight relative to the total weight of the dispersion.

[0173] In some embodiments, the quantity of stabilizer(s) may be between 0.05% and 30% by weight relative to the total weight of the dispersion without water, preferably between 0.2% and 20% by weight, in particular between 2% and 15% by weight, more particularly between 2% and 10% by weight, more preferably between 2.5% and 5% by weight relative to the total weight of the dispersion where the dispersion includes water.

[0174] In certain embodiments, the quantity of stabilizer(s) may be between 0.01% and 20% by weight relative to the total weight of said dispersion with water, preferably between 0.1% and 15% by weight, in particular between 0.9% and 10% by weight, more particularly between 1% and 5% by weight, more preferably between 2% and 3.5% by weight relative to the total weight of the dispersion where the dispersion includes water.

[0175] In some embodiments, the amount of stabilizer(s) may be present in an amount between 5% and 40% by weight relative to the total weight of the ethylenic core particles + stabilizer(s), more particularly between 8% and 30% by weight, preferably between 9.8% and 12.5% ​​by weight relative to the total weight of the ethylenic core particles + stabilizer(s).

[0176] Liquid fatty substance(s) based on hydrocarbons

[0177] The dispersion of polymer particles according to this disclosure also includes one or more liquid hydrocarbon-based fatty substances in which said particles are dispersed.

[0178] In certain embodiments, the hydrocarbon-based liquid grease(s) are selected from hydrocarbons, in particular alkanes, animal oils, vegetable oils, glycerides or fluorinated oils of synthetic origin, fatty alcohols, esters of fatty acids and / or fatty alcohols, silicone-free waxes and silicones; in particular, the hydrocarbon-based liquid grease(s) are hydrocarbon-based oils, which are preferably volatile, or are a mixture of different volatile oils, more particularly isododecane.

[0179] Liquid fatty substances based on hydrocarbons are in particular selected from C6-Ci6 hydrocarbons or hydrocarbons comprising more than 16 carbon atoms and up to 50 carbon atoms, preferably between C6 and Ci6, and in particular alkanes, oils of animal origin, oils of vegetable origin, glycerides, fatty alcohols, fatty acids and / or fatty alcohol esters and silicones.

[0180] In certain embodiments, fatty alcohols, fatty esters, and fatty acids more particularly contain one or more linear or branched, saturated or unsaturated hydrocarbon groups comprising 6 to 50 carbon atoms, which are optionally substituted, in particular, by one or more hydroxyl groups (in particular 1 to 4). If unsaturated, these compounds may comprise one to three conjugated or non-conjugated carbon-carbon double bonds.

[0181] As regards C6-Ci6 alkanes, they may be linear or branched, and possibly cyclic. Examples include hexane, decane, undecane, dodecane, tridecane, or isoparaffins, such as isohexadecane, isodecane, or isodecane, and their mixtures such as the combination of undecane and tridecane, such as CETIOL UT®, or mixtures of C9-C12 alkanes, preferably of natural origin, particularly linear or branched C9-C12 alkanes. This latter mixture is notably known under the INCI name C9-C12 ALCANE E511470, CAS 68608-12-8, VEGELIGHT SILK®, marketed by BioSynthls. This mixture of biodegradable volatile oils is obtained from coconut oil (viscosity of 0.9-1.1 cSt (40 °C) and flash point of 65 °C).

[0182] Linear or branched hydrocarbons containing more than 16 carbon atoms may be selected from liquid paraffins, petroleum jelly, liquid petroleum jelly, hydrogenated polydecenes and polyisobutenes such as Parleam®.

[0183] Among the liquid fatty substances based on hydrocarbons having an overall solubility parameter according to the Hansen solubility space less than or equal to 20 (MPa)l / 2, we can mention oils, which can be chosen from natural or synthetic hydrocarbon-based oils, which are possibly branched, alone or in mixture.

[0184] According to a highly advantageous embodiment, the dispersion may include one or more liquid fatty substances, which are one or more hydrocarbon-based oils. The hydrocarbon-based oil(s) may be volatile or non-volatile. In some embodiments, only one hydrocarbon-based oil is used.

[0185] According to a preferred embodiment, the hydrocarbon-based liquid grease(s) are hydrocarbon-based oils that are volatile or are a mixture of different volatile oils.

[0186] According to a preferred embodiment, the fatty substance(s) are linear or branched hydrocarbon oils that are volatile, in particular selected from undecane, dodecane, isododecane, tridecane, and their mixture of different volatile oils preferably including isododecane in the mixture, or a mixture of undecane and tridecane.

[0187] According to another particular embodiment, the liquid fatty substance(s) is / are a mixture of volatile hydrocarbon oil and non-volatile hydrocarbon oil, the mixture of which preferably comprises dodecane or isododecane as the volatile oil.

[0188] According to another advantageous embodiment, the fatty substance(s) may be a mixture of non-volatile oil(s) and volatile oil(s), wherein preferably the volatile oil(s) includes undecane, dodecane, isododecane and / or tridecane, more preferably isododecane. A mixture of volatile and non-volatile oil may be cited as an example of such a mixture.

[0189] More preferably when the fatty substance(s) is a mixture of volatile and non-volatile oil, the quantity of volatile oil is greater than the quantity of non-volatile oil.

[0190] According to another particular embodiment, the liquid hydrocarbon-based oily substance(s) is / are a mixture of a volatile oil and a non-volatile oil such as a mixture of isododecane / octyldodecanol or a mixture of isododecane / isonononyl isononanoate.

[0191] In certain embodiments, the volatile hydrocarbon-based oil may be selected from: hydrocarbon-based oils containing 8 to 14 carbon atoms, and in particular:

[0192] C8-Ci4 branched alkanes, for example petroleum-derived C8-Ci4 isoalkanes (also known as isoparaffins), for example isododecane (also known as 2,2,4,4,6-pentamethylheptane), isodecane and, for example, oils sold under the trade name Isopar or Permethyl;

[0193] linear alkanes, for example n-dodecane (Ci2) and n-tetradecane (CM), sold by Sasol under the respective references Parafol 12-97 and Parafol 14-97, as well as mixtures of these, the undecane-tridecane mixture, the mixtures of n-undecane (Cn) and n-tridecane (Cn) obtained in Examples 1 and 2 of Cognis patent application WO 2008 / 155 059, and mixtures of these;

[0194] oils based on hydrocarbons of vegetable origin, such as triglycerides consisting of fatty acid esters of glycerol, the fatty acids of which may have chain lengths ranging from C4 to C24, these chains being optionally linear or branched, and saturated or unsaturated;These oils include heptanoic acid or octanoic acid, triglycerides, or alternatively, wheat germ oil, sunflower oil, grapeseed oil, sesame oil, corn oil, apricot oil, castor oil, shea butter, avocado oil, olive oil, soybean oil, sweet almond oil, rapeseed oil, cottonseed oil, hazelnut oil, macadamia oil, jojoba oil, palm oil, alfalfa oil, poppy oil, pumpkin oil, sesame oil, squash oil, rapeseed oil, blackcurrant oil, and other oils. evening primrose oil, millet oil, barley oil, quinoa oil, rye oil, safflower oil, candlenut oil, passionflower oil or rosehip oil;or, alternatively, caprylic / capric acid triglycerides such as those sold by Stéarinerie Dubois or those sold under the names Miglyol 810®, 812® and 818®;

[0195] synthetic ethers containing 10 to 40 carbon atoms;

[0196] linear or branched hydrocarbons of mineral or synthetic origin, such as petroleum jelly, polydecenes, hydrogenated polyisobutene such as Parleam®, squalane and liquid paraffins, and mixtures thereof,

[0197] synthetic esters such as oils of formula R1C(O)-O-R2 in which RI represents a linear or branched fatty acid residue including from 1 to 40 carbon atoms and R2 represents a chain, including a branched chain, based on hydrocarbons containing from 1 to 40 carbon atoms, provided that RI + R2 > 10, for example purcelline oil (cetostearyl octanoate), isopropyl myristate, isopropyl palmitate, alkyl benzoates in C12 to C15, hexyl laurate, diisopropyl adipate, isopropyl isonanoate, 2-ethylhexyl palmitate, isostearyl, 2-hexyldecyl laurate, 2-octyldecyl palmitate, 2-octyldodecyl myristate, alcohol heptanoates or polyalcohols, octanoates, decanoates or ricinoleates such as propylene glycol dioctanoate; hydroxylated esters such as isostearyl lactate, diisostearyl malate and 2-octylethyl lactate; polyol esters and pentaerythritol esters;

[0198] fatty alcohols that are liquid at room temperature, with a branched and / or unsaturated carbon chain containing 12 to 26 carbon atoms, for example octyldodecanol, isostearyl alcohol, oleyl alcohol, 2-hexyldecanol, 2-butyloctanol and 2-undecylpentadecanol.

[0199] In particular, the dispersion may include at least one liquid fatty substance based on hydrocarbons iii) selected from:

[0200] vegetable oils formed by fatty acid esters of polyols, in particular triglycerides, such as sunflower oil, sesame oil, rapeseed oil, macadamia oil, soybean oil, sweet almond oil, beauty leaf oil, palm oil, grapeseed oil, corn oil, arara oil, cottonseed oil, apricot oil, avocado oil, jojoba oil, olive oil or cereal germ oil;

[0201] linear, branched or cyclic esters containing more than 6 carbon atoms, in particular 6 to 30 carbon atoms, and in particular isononyl isononanoate;

[0202] and more particularly esters of the formula Rd-C(O)-O-Re in which Rd represents a higher fatty acid residue comprising 7 to 19 carbon atoms and Re represents a hydrocarbon-based chain comprising 3 to 20 carbon atoms, such as palmitates, adipates, myristates and benzoates, in particular diisopropyl adipate and isopropyl myristate;

[0203] hydrocarbons and in particular volatile or non-volatile, linear, branched and / or cyclic alkanes, such as C5-C6o isoparaffins, which are possibly volatile, such as isododecane, paream (hydrogenated polyisobutene), isohexadecane, cyclohexane or isopars; or liquid paraffins, liquid petroleum jelly or hydrogenated polyisobutylene; in particular isododecane;

[0204] ethers containing 6 to 30 carbon atoms;

[0205] aliphatic fatty monoalcohols containing 6 to 30 carbon atoms, the hydrocarbon-based chain not including any substitution group, such as oleyl alcohol, decanol, dodecanol, octadecanol, octyldodecanol and linoleyl alcohol;

[0206] polyols containing 6 to 30 carbon atoms, such as hexylene glycol; and

[0207] their mixtures, such as the combination of undecane and tridecane such as, by example, CETIOL UT®, preferably of isododecane, or mixtures of linear or branched fatty acid esters in C8-Ci0 and fatty alcohol in Ci2 C6-Ci8 alkanes resulting from the complete hydrogenation / reduction of fatty acid mixtures obtained from Cocos Nucifera (coconut) oil, in particular dodecane such as mixtures of cococaprylate / caprate and dodecane, we can cite those bearing the INCI name coconut alkanes (and) Coco-caprylate / caprate marketed under the name VEGELIGHT 1212LC® by Grant Industries; or mixtures of C9cn alkanes whose chains comprise 9 to 12 carbon atoms, preferably linear or branched C9-C[2] alkanes, including in particular docane, one can cite the oil mixture bearing the INCI name C9-Ci2 ALKANE, VEGELIGHT SILK® marketed by BioSynthls.

[0208] Advantageously, the liquid fatty substance(s) based on hydrocarbons can be nonpolar, that is to say, formed solely of carbon and hydrogen atoms.

[0209] Preferably, the dispersion may include at least one nonpolar liquid fatty substance based on hydrocarbons iii) preferably selected from:

[0210] linear or branched C8-C30 alkanes, in particular C10-C20 and more particularly C10-C16, volatile or non-volatile, preferably volatile;

[0211] non-aromatic cyclic alkanes in the C5-C12 range, volatile or non-volatile, preferably volatile; and

[0212] mixtures of these.

[0213] The liquid hydrocarbon-based oily substance(s) may / preferably be selected from hydrocarbon-based oils containing 8 to 16 carbon atoms, in particular those containing 10 to 14 carbon atoms, which are preferably volatile, more particularly non-polar oils, as disclosed herein.

[0214] Among the C8-C16 branched alkanes, and in particular the C10-C14 branched alkanes, which are suitable for use as hydrocarbon-based liquid fatty substances in dispersion, the following may be mentioned:

[0215] petroleum-derived isoalkanes (also known as isoparaffins), such as isododecane (also known as 2,2,4,4,6-pentamethylheptane), isodecane and, for example, oils sold under the trade name Isopar or Permethyl,

[0216] linear alkanes, for example n-dodecane (C12) and n-tetradecane (C14) sold by Sasol under the respective references Parafol 12-97 and Parafol 14-97, as well as mixtures thereof, the undecane-tridecane mixture, the n-undecane (C11) and n-tridecane (C13) mixtures from the Cognis company, and

[0217] mixtures of these.

[0218] Preferably, the liquid fatty substance(s) based on hydrocarbons iii) may be nonpolar, more particularly isododecane.

[0219] According to another advantageous embodiment, the liquid hydrocarbon-based oily substance(s) is a mixture of non-volatile and volatile oil; preferably, the mixture comprises isododecane as the volatile oil or a mixture of oils, in particular undecane and tridecane or isonyl isonanoate or octyldodecanol.

[0220] Preferably, the liquid oily substance(s) based on hydrocarbons may be present in the dispersion of the invention in an amount between 1% and 25% by weight, more preferably between 2.5% and 20% by weight, even more preferably between 4% and 15% and preferably between 10% and 11.2% by weight relative to the total weight of the dispersion, where the dispersion may include water.

[0221] According to a particular embodiment of the invention, the liquid fatty substance(s) based on hydrocarbons may be present in the dispersion of the invention in an amount between 1.5% and 30% by weight, more preferably between 4% and 20% by weight, even more preferably between 8% and 15% and in particular between 12% and 13% by weight relative to the total weight of the dispersion, where the dispersion is free of water.

[0222] According to a particular embodiment of the invention, one or more volatile hydrocarbons may be present from approximately 1 to approximately 85% by weight, based on the total weight of the cosmetic composition. In some cases, the cosmetic composition may include at least one or more volatile hydrocarbons selected from isoparaffin, isohexadecane, isododecane, isodecane, undecane, tridecane, dodecane, isohexyl, isodecyl, neopentanoate, or a combination thereof. In at least one case, isododecane and / or isoparaffins (e.g., C8-9 isoparaffin) are preferred. The cosmetic composition may be formulated to include volatile hydrocarbons that do not contain silicon atoms.

[0223] The total amount of volatile hydrocarbons may vary. In some embodiments, the cosmetic composition may include approximately 1 to approximately 85% by weight based on the total weight of the cosmetic composition. In some cases, the total amount of volatile hydrocarbons is about 5 to about 85% by weight, about 10 to about 85% by weight, about 12 to about 85% by weight, about 14 to about 85% by weight, about 15 to about 85% by weight, about 20 to about 85% by weight, about 30 to about 85% by weight, about 1 to about 80% by weight, about 5 to about 80% by weight, about 10 to about 80% by weight, about 15 to about 80% by weight, about 20 to about 80% by weight, based on the total weight of the cosmetic composition. In some cases, the total quantity of volatile hydrocarbons is approximately 30 to approximately 80% by weight, approximately 30 to approximately 75% by weight, approximately 35 to approximately 85% by weight,from approximately 35 to approximately 80% by weight, from approximately 35 to approximately 75% by weight, from approximately 40 to approximately 85% by weight, from approximately 40 to approximately 80% by weight, from approximately 40 to approximately 75% by weight, from approximately 45 to approximately 85% by weight, from approximately 45 to approximately 80% by weight, from approximately 45 to approximately 75% by weight, from approximately 50 to approximately 85% by weight, from approximately 50 to approximately 80% by weight, from approximately 50 to approximately 75% by weight, from approximately 55 to approximately 85% by weight, from approximately 55 to approximately 80% by weight, from approximately 55 to approximately 75% by weight, from approximately 60 to approximately 85% by weight, from approximately 60 at approximately 75% by weight, from approximately 65% ​​to approximately 85% by weight, from approximately 65% ​​to approximately 80% by weight, from approximately 65% ​​to approximately 75% by weight, including the ranges and sub-ranges of these values, based on the total weight of the cosmetic composition.

[0224] According to a particular embodiment of the invention, the mass ratio of the sum of the ingredients ([% by weight of ethylenic polymer core particles + % by weight of polymer stabilizing agents] / % by weight of fatty substance which is liquid at 20 °C and 1 atmosphere) is less than or equal to 3, more particularly the mass ratio is between 1 and 2.5, even more particularly between 1.5 and 2.4, preferably between 1.7 and 2.2.

[0225] The dispersion may optionally include other components. For example, in some embodiments, the dispersion may include one or more polyols that are liquid at 20 °C and 1 atm, and / or may include water.

[0226] Polyols

[0227] The dispersion may optionally include one or more polyols which are liquid at 20 °C and 1 atm.

[0228] The term “polyol” means a compound that is liquid at 20 °C and 1 atm, comprising at least two hydroxyl groups, preferably between two and ten hydroxyl (OH) groups, and comprising at least one carbon atom. In particular, the polyol(s) of the invention are chosen from compounds comprising at least 2 OH groups, preferably between 2 and 8 OH groups, more preferably 2 or 3 OH groups, even more preferably 3 OH groups, and comprising a linear or branched, cyclic or acyclic, saturated or unsaturated hydrocarbon-based chain comprising from 1 to 10 carbon atoms, in particular between 2 and 8 carbon atoms.

[0229] More particularly, the polyol(s) of this disclosure has a molecular weight between 50 g / mol and 300 g / mol, more particularly between 80 g / mol and 150 g / mol.

[0230] According to a particular embodiment of this disclosure, the polyol(s) is / are selected from:

[0231] C2-C6 hydrocarbon-based alkanediol compounds and

[0232] C2-C6 alkanetriols such as glycerol and butanetriols and pentanetriols, and hexanetriols such as hexane-1,2,6-triol.

[0233] Preferably, the polyol(s) iv) is / are selected from C2-C6 alkanetriol compounds based on hydrocarbons such as glycerol.

[0234] According to one embodiment, the dispersion may include one or more polyols in an amount greater than or equal to 5% by weight and less than 95% by weight relative to the total weight of the water-free dispersion; in particular, the amount of polyol(s) in the dispersion is between 10% and 90% by weight relative to the total weight of the water-free dispersion, more particularly between 25% and 90% by weight, more particularly between 35% and 90% by weight, relative to the total weight of the water-free dispersion; and more preferably between 50% and 70%.

[0235] According to one embodiment, the dispersion may include one or more polyols in an amount greater than or equal to 15% by weight and less than 90% by weight relative to the total weight of the dispersion with water; in particular, the amount of polyol(s) in the dispersion is between 20% and 85% by weight relative to the total weight of the dispersion with water, more particularly between 25% and 80% by weight, more particularly between 40% and 60% by weight, relative to the total weight of the dispersion including water.

[0236] In some cases, the cosmetic composition may include one or more polyols, in addition to the one or more polyols incorporated in the dispersion, which may be identical or different from those discussed here.

[0237] According to one embodiment, one or more polyols may be present from approximately 1 to approximately 50% by weight, based on the total weight of the skin-firming composition. The total amount of polyols may vary but is usually from approximately 1 to approximately 50% by weight, based on the total weight of the skin-firming composition. In some cases, the total amount of polyols is approximately 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 22, 24 to approximately 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 38, 40, 42, 44, 46, 48 and 50% by weight based on the total weight of the cosmetic composition. In some embodiments of the cosmetic composition, the weight ratio of the total amount of the polymer core of the dispersion to the total amount of polyols is between 1:1 and 4:1. In one or more embodiments of the cosmetic composition, the weight ratio of the total amount of polymer core of the dispersion to the total amount of polyols is from 1:1 to 4:1, 1:1 to 3.5:1, 1:1 to 3:1, 1:1 to 2.5:1, 1:1 to 2:1, 1:1 to 1.5:1, or any range and subrange of these values.

[0238] Water

[0239] In some embodiments, the dispersion, in particular the hydrogel, may comprise water in an amount of between 5% and 50% by weight relative to the total weight of the dispersion, more particularly between 7% and 48% by weight and preferably between 9% and 46% by weight relative to the total weight of the dispersion.

[0240] In certain embodiments, the weight ratio of the hydrocarbon-based liquid fat(s) / water is between 0.1 and 5, more particularly between 0.2 and 1, preferably between 0.3 and 0.7, more preferably between 0.4 and 0.6.

[0241] Suitable water for use in this disclosure may be tap water, distilled water, spring water, floral water such as corn flower water and / or mineral water such as Vittel, Lucas or La Roche Posay water and / or thermal water.

[0242] The dispersion may also include one or more water-miscible solvents. According to this disclosure, the term "water-miscible solvent" means a compound that is liquid at room temperature and miscible with water (miscibility with water greater than 50% by weight at 25°C and atmospheric pressure). The water-miscible solvents that may be used in the dispersion of this disclosure may also be volatile. Examples of water-miscible solvents that may be used in the composition according to the invention include lower monoalcohols containing 2 to 5 carbon atoms, such as ethanol and isopropanol.

[0243] Water may also include any water-soluble or water-dispersible compound that is compatible with an aqueous phase, such as associated film-forming polymers, surfactants, and mixtures thereof. The term "surfactant" means a "surface-active agent," which is a compound capable of modifying the surface tension between two surfaces; surfactants are amphiphilic molecules, that is, they contain two parts of different polarities, one lipophilic and nonpolar, the other hydrophilic and polar. Surfactants can be non-ionic, anionic, amphoteric or cationic active agents.

[0244] In some embodiments, the dispersion may not include more than 3% by weight of surfactants relative to the total weight of the dispersion, preferably not more than 2% by weight of surfactants relative to the total weight of the dispersion, more particularly not more than 1% by weight of surfactants relative to the total weight of the dispersion; even more preferably, the composition does not include more than 0.5% by weight of surfactants relative to the total weight of the dispersion, and better still, the mixture does not include any surfactant.

[0245] In some embodiments, the dispersion includes 10 to 20% of the ethylenic polymer core particles, 15 to 35% of the hydrocarbon-based liquid oily substance(s), 10 to 30% of the polymer stabilizer and 40 to 60% of water, by weight relative to the total weight of the dispersion.

[0246] Film-forming material resistant to transfer.

[0247] In some embodiments, the cosmetic composition may include a transfer-resistant film-forming material. By "film-forming material" is meant a polymer that is capable of forming, alone or in the presence of another film-forming agent, a macroscopically continuous film on a substrate, in particular on keratinous substances, and preferably a cohesive film.

[0248] In some embodiments, the cosmetic composition comprises or consists of a silicone-based film-forming material. In some embodiments, the transfer-resistant film-forming material may include silicone pullulan, silicone norbornene, a sequenced pseudo-copolymer, an MQ resin, a propyl siloxane T resin, an MQT resin, or a combination thereof. In some embodiments, the transfer-resistant film-forming material may include an MQ resin, a polyester, a trimethylsiloxymethacrylate copolymer, and / or a dimethicone copolymer.

[0249] In some embodiments, the film-forming material(s) may be present in a total quantity of 1% to 30% by weight of the composition. In some embodiments, the film-forming material(s) may be present in a total quantity of 1% to 5% by weight. In some embodiments, the film-forming material(s) may be present in a total quantity of 5% to 20% by weight. In some embodiments, the film-forming material(s) may be present in a total quantity of 5% to 10% by weight. In some embodiments, the film-forming material(s) may be present in a total quantity of 8% to 14% by weight.

[0250] Sequenced pseudo-copolymer

[0251] As used herein, the term "sequenced pseudo-copolymer" refers to a film-forming sequenced polymer, preferably containing at least one first block and at least one second block having different glass transition temperatures (Tg), the first and second blocks being linked together by an intermediate block comprising at least one monomer that is a component of the first block and at least one monomer that is a component of the second block. Advantageously, the first and second blocks of the sequenced polymer are mutually incompatible. Polymers of this type are described, for example, in documents EP 1411069 or WO04 / 028488. In some embodiments, the sequenced pseudo-polymer has a polydispersity index (I) greater than 2.

[0252] In certain embodiments, the film-forming sequenced polymer is a linear ethylenic film-forming sequenced polymer. As used here, the expression "mutually incompatible blocks" means that the mixture formed from the polymer corresponding to at least one first block and the polymer corresponding to at least one second block is immiscible in the polymerization solvent that constitutes the majority by weight of the at least one sequenced pseudopolymer, at room temperature (25 °C) and atmospheric pressure (105 Pa), for a polymer mixture content greater than or equal to 5% by weight, relative to the total weight of the mixture (polymers and solvent), in which:

[0253] i) the polymers corresponding to at least one first block and at least one second block are present in the mixture in an amount such that the respective weight ratio varies from 10:90 to 90:10 and

[0254] ii) each of the polymers corresponding to at least one first block and at least one second block has an average molecular mass (weight average or number average) equal to that of at least one sequenced pseudopolymer ± 15%.

[0255] In some embodiments, the transfer-resistant film-forming material may be a silicone resin, which may be, for example, type MQ, type T (in particular a t-propyl siloxane resin), and / or type MQT. In some embodiments, a combination of an MQ type resin and a type T resin may be used.

[0256] MQ type resins

[0257] Examples of MQ-type silicone resins include alkyl siloxysilicates of formula [(Rl)3SiO1 / 2]x(SiO4 / 2)y(MQ motifs) in which x and y are integers between 50 and 80, and such that the RI group represents a radical as defined previously, and is preferably an alkyl group containing 1 to 8 carbon atoms, preferably a methyl group. In some embodiments, the MQ-type resin is a trimethylsiloxysilicate.

[0258] Examples of MQ type solid silicone resins of trimethylsiloxysilicate type include those sold under the reference SR1000 by General Electric, under the reference TMS 803 by Wacker, or under the name KF-7312J by Shin-Etsu, or DC749 or DC593 by Dow Corning.

[0259] Examples of silicone resins comprising MQ siloxysilicate motifs include phenylalkylsiloxysilicate resins, such as phenylpropyldimethylsiloxysilicate (Silshine 151 sold by General Electric). The preparation of these resins is described in particular in US patent no. 5,817,302.

[0260] Type T resins.

[0261] Examples of these T-type silicone resins include polysilsesquioxanes of formula (RSiO32)x(T motifs) in which x is greater than 100 and such that the R group is an alkyl group containing from 1 to 10 carbon atoms, said polysilsesquioxanes also comprising Si—OH terminal groups. In some embodiments, the T-type resin is a polymethylsilsesquioxane. In some embodiments, the T-type resin is a polypropylsilsesquioxane.

[0262] Polymethylsilsesquioxane resins that may preferably be used are those in which R represents a methyl group, for example those sold:

[0263] by Wacker under the reference Resin MK, such as Belsil PMS MK: a polymer comprising repeating CH3SiO3 / 2 motifs (T motifs), which may also comprise up to 1 wt% of (CH3)2SiO2 / 2 motifs (D motifs) and having an average molecular weight of about 10,000 g / mol, or

[0264] by the company Shin-Etsu under the reference KR-220L which are composed of T motifs of formula CH3SiO3 / 2 and have Si—OH (silanol) terminal groups, under the reference KR-242A which comprise 98% T motifs and 2% D motifs of dimethyl and have Si—OH terminal groups, or alternatively under the reference KR-251 comprising 88% T motifs and 12% D motifs of dimethyl and have Si—OH terminal groups.

[0265] MQT type resins

[0266] Resins comprising particularly well-known MQT motifs are those mentioned in US patent document no. 5,110,890). A preferred form of MQT-type resins are MQT-propyl resins (also called resins MQTPr). These resins which can be used in the compositions according to the invention include the resins described and prepared in patent application WO 2005 / 075 542, the contents of which are incorporated herein by way of reference.

[0267] In some embodiments, the MQT resin comprises polymethylsilsesquioxane. In some embodiments, the MQT resin may be trimethylsiloxysilicate polymethylsilsesquioxane.

[0268] The MQT-propyl resin preferably comprises the following motifs:

[0269] (Rl3SiO1 / 2)a (i)

[0270] (R22SiO2 / 2)b (ii)

[0271] (R3SiO3 / 2)c and (üi)

[0272] (SiO4 / 2)d (iv)

[0273] RI, R2 and R3 independently representing a hydrocarbon-based radical (in particular alkyl) containing 1 to 10 carbon atoms, a phenyl group, a phenylalkyl group or a hydroxyl group, and preferably an alkyl radical containing 1 to 8 carbon atoms or a phenyl group, a being between 0.05 and 0.5, b being between 0 and 0.3, c being greater than 0, d being between 0.05 and 0.6, a+b+c+d=l, and a, b, c and d being mole fractions, provided that more than 40 mol% of the R3 groups of the siloxane resin are propyl groups.

[0274] Preferably, the siloxane resin comprises the following motifs:

[0275] (Rl3SiO1 / 2)a (i)

[0276] (R3SiO3 / 2), and (iii)

[0277] (SiO4 / 2)d (iv)

[0278] RI and R3 independently representing an alkyl group containing from 1 to 8 carbon atoms, RI being preferably a methyl group and R3 preferably a propyl group, a being between 0.05 and 0.5 and preferably between 0.15 and 0.4, c being greater than 0 and preferably between 0.15 and 0.4, d being between 0.05 and 0.6, preferably between 0.2 and 0.6, or between 0.2 and 0.55, a + b + c + d = 1 and a, b, c and d being mole fractions, provided that more than 40 mol% of the R3 groups of the siloxane resin are propyl groups.

[0279] In certain embodiments, the siloxane resins that can be used according to the invention can be obtained by a process comprising the reaction of: A) an MQ resin comprising at least 80 mol% of (R13SiO1 / 2)a and (SiO4 / 2)d units, R1 representing an alkyl group containing from 1 to 8 carbon atoms, an aryl group, a carbinol group, or an amino group, a and d being greater than 0, the ratio to aid being between 0.5 and 1.5; and B) a T-propyl resin comprising at least 80 mol% of (R3SiO3 / 2)c units, R3 representing an alkyl group containing from 1 to 8 carbon atoms, an aryl group, a carbinol group, or an amino group, c being greater than at 0, provided that at least 40 mol% of the R3 groups are propyl groups, wherein the mass ratio A / B is between 95 / 5 and 15 / 85 and the mass ratio A / B is preferably 30 / 70. Advantageously, the mass ratio A / B is between 95 / 5 and 15 / 85. Preferably, the A / B ratio is less than or equal to 70 / 30. These preferred ratios have been shown to produce deposits that are comfortable due to the absence of percolation of rigid MQ resin particles into the deposit.

[0280] In some embodiments, the silicone resin is selected from the group comprising:

[0281] a) an MQ-type resin, selected in particular from (i) alkyl siloxysilicates, which may be trimethyl siloxysilicates, of formula [(Rl)3SiOi / 2]x(SiO4 / 2)y, in which x and y are integers from 50 to 80, and such that the RI group represents a hydrocarbon-based radical containing from 1 to 10 carbon atoms, a phenyl group, a phenylalkyl group or a hydroxyl group, and is preferably an alkyl group containing from 1 to 8 carbon atoms, preferably a methyl group, and (ii) phenylalkyl siloxysilicate resins, such as phenylpropyldimethyl siloxysilicate, and / or

[0282] b) a T-type resin, selected in particular from polysilsesquioxanes of formula (RSiO3 / 2)x, wherein x is greater than 100 and the R group is an alkyl group containing from 1 to 10 carbon atoms, for example a methyl group, or a t-propyl group, said polysilsesquioxanes also possibly comprising Si-OH terminal groups, and / or

[0283] c) an MQT type resin, in particular an MQT-propyl type resin, which may comprise motifs (i) (R13SiO1 / 2)a, (ii) (R22SiO2 / 2)b, (ii) (R3SiO3 / 2)c and (iv) (SiO4 / 2)d,

[0284] RI, R2 and R3 independently representing a hydrocarbon-based radical, in particular an alkyl, containing from 1 to 10 carbon atoms, a phenyl group, a phenylalkyl group or a hydroxyl group and preferably an alkyl radical containing from 1 to 8 carbon atoms or a phenyl group, a being between 0.05 and 0.5, b being between 0 and 0.3, c being greater than 0, d being between 0.05 and 0.6, a + b + c + d = 1, and a, b, c and d being mole fractions, provided that more than 40 mol% of the R3 groups of the siloxane resin are propyl groups.

[0285] Polyester.

[0286] In some embodiments, the polyesters may be selected from those comprising a backbone formed by the reaction of at least one diol and at least one diacid. The diol may be a linear or branched aliphatic dihydric compound having two -OH groups. The diacid may be a linear or branched aliphatic dicarboxylic acid having two -COOH groups, although aromatic acids may also be used. The polyester backbone may be formed by the co-condensation of these diols and diacids. The diol may contain from 2 to 10 ether bonds. (—R—O—R—) or 2 to 10 tertiary amine groups (NR 3). The polyester may be linear or crosslinked. In some embodiments, the polyester resin may be a saturated hydroxy-crosslinked functional polyester composed of glycerin, diethylene glycol, and a crosslinked adipate polymer, also known by its INCI name as adipic acid / diethylene glycol / glycerin crosslinked polymer, sold under the name Lexorez® 100 by Inolex Chemical. In some embodiments, the polyester resin is composed of hexanedioic acid, 1,2,3-propanediol, and a crosslinked 2,2,4-trimethyl-1,3-pentanediol polymer, also known by its INCI name as trimethylpentanediol / adipic acid / glycerin crosslinked polymer, sold under the name Lexorez® 200.

[0287] Hydrophilic active agent.

[0288] In some embodiments, the cosmetic composition may include a hydrophilic active agent. In some embodiments, the hydrophilic active agent may be incorporated into at least one ethylenic polymer core formed by the polymers disclosed herein. In some embodiments, the hydrophilic active agent may be external to the ethylenic polymer core.

[0289] In some embodiments, the hydrophilic active agent may be:

[0290] a moisturizing agent, such as a polyol such as, for example, glycerin and sugars, urea and its derivatives, such as in particular hydroxyalkyl urea, especially hydroxyalkyl urea, and mixtures thereof;

[0291] a desquamating agent, which may be a compound capable of acting directly on desquamation by promoting exfoliation, such as 3-hydroxy acids, in particular salicylic acid and its derivatives (including 5-n-octanoylsalicylic acid); α-hydroxy acids, such as glycolic acid, citric acid, lactic acid, tartaric acid, malic acid or mandelic acid; urea; gentisic acid; oligofucoses; cinnamic acid; Saphora japonica extract; resveratrol and certain jasmonic acid derivatives; or to act on the enzymes involved in the desquamation or degradation of comeodesmosomes, glycosidases, the chymotryptic enzyme of the stratum corneum (SCCE), or even other proteases (trypsin, chymotrypsin type).Examples of mineral salt chelating agents include: EDTA; N-acyl-N,N',N'-ethylenediaminetriacetic acid; aminosulfonic compounds, particularly (N-2-hydroxyethylpiperazine-N-2-ethane)sulfonic acid (HEPES); 2-oxothiazolidine-4-carboxylic acid derivatives (procysteine); α-amino acid derivatives of the glycine type (as described in EP-0 852 949 and sodium methylglycinediacetate sold by BASF under the trade name Trilon M); honey; sugar derivatives such as O-octanoyl-6-D-maltose and N-acetylglucosamine; .

[0292] a humectant;

[0293] an anti-aging agent, which may include, for example, one or more of C-beta-D-xylopyranoside-2-hydroxypropane (Pro-Xylane), retinol, peptides, caffeine and other components that improve skin texture, any other suitable soluble / dispersible targeted active ingredient, and combinations thereof.

[0294] a healing agent;

[0295] an antimicrobial agent, examples of which include but are not limited to 2,4,4'-trichloro-2'-hydroxydiphenyl ether (or triclosan), 3,4,4'-trichlorobanilide, phenoxyethanol, phenoxypropanol, phenoxyisopropanol, hexamidine isethionate, metronidazole and its salts, micronazole and its salts, itraconazole, terconazole, econazole, ketoconazole, saperconazole, fluconazole, clotrimazole, butoconazole, oxiconazole, sulfaconazole, sulconazole, terbinafine, ciclopirox, ciclopirox olamine, undecylenic acid and its salts, benzoyl peroxide, 3-hydroxybenzoic acid, 4-hydroxybenzoic acid, phytic acid, acid N-acetyl-L-cysteine, lipoic acid, azelaic acid and its salts, arachidonic acid, resorcinol, 2,4,4'-trichloro-2'-hydroxydiphenyl ether, 3,4,4'-trichlorocarbanalide, octopirox, octoxyglycerin, octanoylglycine, caprylyl glycol, 10-hydroxy-2-decanoic acid, dichlorophenylimidazole dioxolane and its derivatives described in patent WO 93 / 18743,Farnesol and phytosphingosines, and mixtures thereof;

[0296] a water-soluble texture modifier;

[0297] a water-soluble colouring such as beetroot juice or caramel;

[0298] A pigment-modifying agent and / or skin-lightening agents, such as double-stranded RNA oligonucleotides, are useful for decreasing tyrosinase expression.Other examples include ceramides, vitamin C and its derivatives, particularly vitamins CG, CP and 3-ethyl vitamin C, alpha- and beta-arbutin, ferulic acid, kojic acid, resorcinol and its derivatives, calcium sulfonate, D-pantheine, lipoic acid, ellagic acid, vitamin B3, phenylethyl resorcinol (e.g., Symwhite 377® from Symrise), kiwi juice (ActmzWza chinensis) sold by Gattefosse, Paeonia suffructicosa root extract (e.g., Botanpi Liquid B® sold by Ichimaru Pharcos), brown sugar extract (Saccharum officinarum) (e.g., molasses extract sold by Taiyo Kagaku as Molasses Liquides), and a mixture of acids. undecylenic and undecylenoyl phenylalanine, such as Seppiwhite MSH® from Seppic; .

[0299] a vitamin such as vitamin B3, vitamin C and / or derivatives thereof;

[0300] a blowing agent such as polyols or water; or

[0301] a combination of these.

[0302] The cosmetic composition may also include other components, such as water, a colorant, an antioxidant, an ultraviolet (UV) filter, a mattifying agent or a combination thereof.

[0303] Dyes

[0304] The colorants that can be incorporated into the composition (but not into the polymer cores) may include pigments, colorants, such as fat-soluble colorants, pearlescent pigments and pigments with special effects and / or pearlescent agents.

[0305] Representative fat-soluble dyes that can be used according to the present invention include Sudan Red, DC Red 17, DC Green 6, beta-carotene, soybean oil, Sudan Brown, DC Yellow 11, DC Violet 2, DC Orange 5, annatto, and quinoline yellow. The fat-soluble dyes, where applicable, generally have a concentration of up to 40% by weight of the total weight of the composition, such as from 0.0001% to 30%, including all ranges and sub-ranges between these values.

[0306] The pearlescent pigments that can be used according to the present invention can be selected from white pearlescent pigments such as titanium-coated mica or bismuth oxychloride, colored pearlescent pigments such as titanium mica with iron oxides, titanium mica with ferric blue or chromium oxide, titanium mica with an organic pigment selected from those mentioned above, and pearlescent pigments based on bismuth oxychloride. The pearlescent pigments, if any, are present in the composition in a concentration of up to 50% by weight of the total weight of the composition, for example, from 0.0001% to 40%, preferably from 0.001% to 30%, including all ranges and sub-ranges between these values.

[0307] The pigments that can be used according to the present invention can be selected from white, colored, inorganic, organic, polymeric, non-polymer, coated, and uncoated pigments. Representative examples of mineral pigments include titanium dioxide, optionally surface-treated, zirconium oxide, zinc oxide, cerium oxide, iron oxides, chromium oxides, manganese violet, ultramarine blue, chromium hydrate, and ferric blue. Representative examples of organic pigments include carbon black, D&C type pigments, and lakes based on cochineal carmine, barium, strontium, calcium, and aluminum.

[0308] As used herein, the term "pigment" means any pigment that gives colour to keratinous materials, of synthetic or natural origin, the solubility of pigments in water at 25 °C and atmospheric pressure (760 mmHg) being less than 0.05% by weight and preferably less than 0.01%;

[0309] As used herein, the term "lacquer" refers to colorants adsorbed onto insoluble particles, the resulting assembly remaining insoluble during use. The substrates Examples of inorganic materials to which the dyes are adsorbed include alumina, silica, calcium-sodium borosilicate, calcium-aluminum borosilicate, and aluminum. Examples of organic dyes include cochineal carmine.

[0310] As used here, the term "special effect pigments" refers to pigments that generally create a colored appearance (characterized by a certain hue, vibrancy, and level of luminance) that is not uniform and that changes depending on the viewing conditions (light, temperature, viewing angles, etc.). They are thus distinguished from colored pigments that provide a uniform, opaque, semi-transparent, or standard transparent hue.In some embodiments, special effects pigment may include those with a low refractive index, such as fluorescent, photochromic or thermochromic pigments, and those with a higher refractive index, such as pearlescent or glitter pigments.

[0311] In certain embodiments, colorants may be present in the composition at a concentration of up to 50% by weight of the total weight of the composition, such as from 0.0001% to 40%, and furthermore, such as from 0.001% to 30%, including all ranges and sub-ranges between these values. For some products, pigments, including pearlescent pigments, may, for example, represent up to 50% by weight of the composition, such as, for example, from 6% to 50% of the composition.

[0312] Antioxidants may be incorporated into the composition. In some embodiments, the antioxidant is incorporated into the polymer cores. In some embodiments, the antioxidant is not incorporated into the polymer cores. In some embodiments, the antioxidant may be present both within and outside the cores. Antioxidants may include tocopherol and its esters, in particular tocopheryl acetate; EDTA; ascorbic acid and its derivatives, in particular magnesium ascorbyl phosphate and ascorbyl glucoside; chelating agents, such as BHT, BHA, N,N'-bis(3,4,5-trimethoxybenzyl)ethylenediamine and its salts, and mixtures thereof.

[0313] The cosmetic composition may include an ultraviolet (UV) filter incorporated into the composition (but not incorporated into the polymer cores). The UV filter may include, for example, an aminobenzoic acid derivative, a dibenzoylmethane derivative, a salicylic acid derivative, a cinnamic derivative, a [3,[3]diphenylacrylate derivative, a benzophenone derivative, a benzylidene camphor derivative, and mixtures thereof. Examples include ethylhexyl methoxycinnamate sold under the trade name UVINUL MC 80® by BASF, ethylhexyl salicylate sold under the trade name NEO HELIOPAN OS® by SYMRISE, and octocrylene sold under the trade name NEO HELIOPAN 303® by SYMRISE.

[0314] The cosmetic composition may include a mattifying agent, which may include, but is not limited to, mattifying fillers such as, for example, talc, silica, silicone elastomers and polyamides, and waxes such as, for example, beeswax and copemicia cerifera (carnauba) wax.

[0315] Example 1

[0316] Cosmetic formulations for the lips have been manufactured using the compositions indicated below.

[0317] [Table 1] (Control formulations, quantities in % by weight of assets) Material 1 2 3 4 5 6 Dispersion ~20 Acrylates / dimethicone copolymer ~20 Acrylates / polytrimethylsiloxymethacrylate copolymer ~20 Trimethylsiloxysilyl carbamoyl pullulan ~20 Norbornene / tris (trimethylsiloxy) silylnorbornene copolymer ~20 Acrylic acid / isobutyl acrylate / isobornyl acrylate copolymer ~20 Pigment ~2 ~2 ~2 ~2 ~2 ~2 Trihydroxystearin ~3 ~3 ~3 ~3 ~3 ~3 Isododecane quanta m sati s quanta m sati s quanta m sati s quanta m sati s quanta m sati s quanta m sati s quanta m sati s quanta m sati s quanta m sati s

[0318] [Table 2] (Examples of formulations, quantities in % by weight of active) Material 7 8 9 10 11 Dispersion ~10 ~10 ~10 ~10 ~10 Acrylates / dimethicone copolymer ~10 Acrylates / polytrimethyl methacrylate copolymer ~10 Trimethylsiloxysilyl carbamoyl pullulane ~10 Norbornene / tris(trimethylsiloxy)silylnorbornene copolymer ~10 Acrylic acid / isobutyl acrylate / isobornyl acrylate copolymer ~10 Pigment ~2 ~2 ~2 ~2 ~2 Trihydroxystearine ~3 ~3 ~3 ~3 ~3 Isododecane

[0319] [Table 3] (Evaluation scores) Material Sample ill on Oil the Disc of cotton impregnated with oil Saliva Cotton impregnated with saliva Acetic acid Cotton AASwelling Caliber Dispersion 1 1 2 2.63 3 1 1.63 0.077 Acrylates / dimethicone copolymer 2 1 2.5 1 1.25 1 1.25 N / A Acrylates / polytrimethylsiloxymethacrylate copolymer 3 1 1.75 1 1.13 1 1.25 N / A Trimethylsiloxysilyl carbamoyl pullulane 4 1 1.75 1 1.13 1 1.25 N / A Norbornene / tris(trimethylsiloxy)silylnorbornene copolymer 5 1 1.5 1.13 1 1 1.13 N / A Acrylic acid / isobutyl acrylate / isobornyl acrylate copolymer 6 1 1.25 1 1 1 1.25 N / A Dispersion + acrylates / dimethicone copolymer 7 1 2 2.75 2.25 1 2 0.036 Dispersion + acrylates / polytrimethyl siloxymethacrylate copolymer 8 1 1.75 2 1.75 1 1.75 0.022 Dispersion + trimethylsiloxysilyl carbamoyl pullulane 9 1 1.5 1.25 1.38 1 1.5 -0.006 Dispersion + norbornene / tris(trimethylsiloxy)silylnorbornene copolymer 10 1 1.25 1.5 1.25 1.25 1.25 0.016 Dispersion + acrylic acid / acryla copolymer 11 1 1.25 1.63 1.5 1 1.75 0.008 . isobutyl te / isobornyl acrylate

[0320] As shown in Table 3, solvent resistance was evaluated. Solvent resistance. Each formulation was applied to several black P121-10N #5015 byko-chart abrasion cards using a 1 mil spiral bar applicator. The films were allowed to dry overnight at 35°C and 60% RH. To evaluate the samples, 6 drops of liquids (two drops of olive oil, two drops of artificial saliva, and two drops of 2% acetic acid) were placed on different sections of the film and allowed to stand for 10 minutes. The amount of material removed by the drops themselves was evaluated. In addition, a cotton pad was used to gently wipe each drop 15 times. The amount of product that wiped onto the cotton pad and how / if the product moved across the byko-chart substrate were then observed. For the ratings, we used a scale from 0 (no elimination) to 3 (substantial elimination).

[0321] As we have seen, sample 1 (dispersion only) performed the worst of all the samples. Samples 2-6 (no dispersion, one of 5 different film-forming agents used) generally showed very good resistance, with a few exceptions for oil resistance after wiping with a cotton pad.

[0322] The surprising advantage of combining dispersion with film-forming materials can be seen by comparing the evaluations of samples 2 versus 7, 3 versus 8, 4 versus 9, 5 versus 10 and 6 versus 11, while keeping in mind the sample with dispersion only (sample 1).

[0323] For example, by examining the evaluations with olive oil using a cotton pad, it can be seen that the combined samples gave good or better results than the best comparative sample (dispersion only or film-forming material only). See Table 4 below. Given the approximately 50 / 50 combination of dispersion and film-forming material in the combined samples, one would expect the performance to be half that of the two comparative samples. For example, for the combined dispersion (evaluation score of 2) + acrylates / dimethicone copolymer (evaluation score of 2.5), one would expect the combination to have an evaluation score of 2.25. However, the score was 2—equal to the best-performing comparative formula. Thus, the combination of the dispersion + transfer-resistant film-forming materials is surprisingly synergistic.

[0324] [Table 4] (KW oil scores) Dispersion score only (sample no.) Film-forming substance score only (sample no.) Combined score (sample no.) 2(1) 2.5 (2) 2(7) 2(1) 1.75 (3) 1.75 (8) 2(1) 1.75 (4) 1.5 (9) 2(1) 1.5 (5) 1.25 (10) 2(1) 1.25 (6) 1.25(11)

[0325] Swelling was also evaluated. Specifically, a 3 mL sample was poured onto abrasive paper and left to dry overnight at room temperature on a bench. The film thickness was then measured at four separate locations on the samples using a Mitutoyo gauge as a standard. 0.25 g of deionized water was added to the samples to initiate swelling. Once the water had been absorbed or evaporated from the top of the film (usually within 1.5 hours), the thickness was again measured using the gauge. The difference (in mm) corresponds to the gauge-based "swelling" measurements shown in Table 3.

[0326] It is observed that sample 1 – dispersion alone – swells considerably. Combinations with numerous film-forming materials significantly reduce swelling and, in one case (sample 9), actually reduce the film thickness. Surprisingly, at least two compositions (samples 7 and 8) offer significant wear resistance, but still allow considerable swelling (e.g., greater than or equal to 0.02 mm).

[0327] Example 2

[0328] Cosmetic formulations for the lips have been manufactured using the compositions indicated below.

[0329] [Table 5] (Control formulations, quantities as % by weight of active ingredient) Material 12 13 14 15 16 Dispersion MQ Resin ~20 MQT Resin ~20 MQ Resin + T-propyl Resin ~20 MQT Resin + MQ Resin + T-propyl Resin ~20 Polyester ~20 Pigment ~2 ~2 ~2 ~2 ~2 Trihydroxystearine ~3 ~3 ~3 ~3 ~3 Isododecane quantum satis quantum satis quantum satis quantum satis quantum satis

[0330] [Table 6] (Examples of formulations, quantities in % by weight of active ingredient) Material 16 17 18 19 20 Dispersion ~10 ~10 ~10 ~10 ~10 MQ resin ~10 MQT resin ~10 MQ resin + T-propyl resin ~10 MQT resin + MQ resin + T-propyl resin ~10 Polyester ~10 Pigment ~2 ~2 ~2 ~2 ~2 Trihydroxystearin ~3 ~3 ~3 ~3 ~3 Isododecane quantu m satis quantu m satis quantu m satis quantu m satis quantu m satis

[0331] [Table 7] (Evaluation scores) Material Sample Oil Oil-impregnated cotton Saliva Saliva-impregnated cotton Acetic acid AA cotton Swelling Caliber Dispersion 1 1 2 2.63 3 1 1.63 0.077 MQ resin 12 1.00 2.25 1.00 1.00 1.00 1.63 N / A MQT resin 13 1.25 2.50 1.00 1.13 1.00 1.25 N / A MQ resin + T-propyl resin 14 1.13 2.63 1.00 1.00 1.00 1.25 N / A MQT resin + MQ resin + T-propyl resin 15 1 1.63 1 1 1 1.25 N / A Polyester 16 3.00 3.00 1.75 2.50 1.75 1.88 N / A Dispersion + MQ resin 17 1.00 2.00 2.75 2.25 1.25 2.00 0.028 Dispersion + MQT resin 18 1.00 2.00 2.75 2.50 1.00 2.00 0.003 Dispersion + MQ resin + T-propyl resin 19 1.00 1.75 1.25 2.00 1.00 2.00 0.003 Dispersion + MQT resin + MQ resin + T-propyl resin 20 1.38 2.00 1.00 1.25 1.00 1.75 0.003 Dispersion + polyester 21 3.00 3.00 3.00 2.50 1.50 1.25 0.060

[0332] The same evaluations performed in Example 1 were also performed in Example 2. Most formulations exhibit the same synergistic performance in olive oil resistance with a cotton pad. Interestingly, polyester does not exhibit this synergistic behavior. However, when the polyester film-forming agent was used (here, dilinoleic acid / butanediol copolymer), swelling was measured at 0.06 mm, which is very close to the swelling of the dispersion alone. Furthermore, although there is no observable swelling of the MQT / MQ / T combination (sample 20), wear with the dispersion is very good. For example, compared to samples containing only the MQ resin (17), MQT resin (18), and MQ resin with T-propyl resin (19) – sample 20 showed unexpectedly better resistance to saliva, which is essential for a lip product. Furthermore, the MQ / T combinations offer good anti-wear performance and could allow the release of water-soluble active ingredients while maintaining wear resistance.

[0333] A person skilled in the art will recognize or be able to determine, using only simple routine experimentation, numerous equivalents of the specific embodiments of the invention described herein. These equivalents are assumed to be encompassed by the following claims.

Claims

Demands

1. Cosmetic composition for use on the lips, comprising: A. a dispersion comprising: i. an ethylenic polymer core particle obtained by polymerization of monomers of: a. (C1-C4) alkyl (C1-C4) (alkyl)acrylate in which the (C1-C4) alkyl group(s) is / are optionally substituted by one or more hydroxy and / or (di) (C1-C4 alkyl) amino groups; b. poly [oxy (C1-C4) alkylene] (C1-C4) (alkyl)acrylate; and / or c. ethylenic monomers comprising one or more groups selected from carboxy, anhydride, phosphoric acid and sulfonic acid; i. a polymer stabilizing agent selected from: a. ethylenic polymers of (Ci-C6) (alkyl) acrylate monomers of (C3-C12) cycloalkyl; and / or b. copolymers of ethylenic monomers of (Ci-C6)(C3-C12) cycloalkyl (alkyl)acrylate and (C1-C4) alkyl (C1-C4)(alkyl)acrylate; and i. a liquid fatty substance at 20 °C and 1 atmosphere; A. a transfer-resistant film-forming material and / or a hydrophilic active agent incorporated into at least one ethylenic polymer core, said film-forming material comprising a silicone pullulan, a silicone norbornene, a sequenced pseudo-copolymer, an MQ resin, a propyl siloxane T resin, an MQT resin or a combination thereof.

2. Cosmetic composition according to claim 1, wherein the film-forming material is an MQ resin, a polyester, a trimethylsiloxymethacrylate copolymer and a dimethicone copolymer.

3. A cosmetic composition according to claim 1, wherein the dispersion further comprises an additional particle, the additional particle having a chemical structure different from that of the ethylenic polymer core particle, the particle additional being obtained by polymerization of monomers selected from the ethylenic monomers of (a), (b) and / or (c).

4. Cosmetic composition according to claim 1, wherein the ethylenic polymers of (Ci-C6) (alkyl) acrylate of (C3-C12) cycloalkyl monomers are ethylenic homopolymers of (Cr C6) (alkyl) acrylate of (C3-C12) cycloalkyl.

5. Cosmetic composition according to claim 4, wherein the ethylenic polymers of (Ci-C6) (alkyl) acrylate monomers of (C3-C12) cycloalkyl are ethylenic homopolymers of (C3-C12) cycloalkyl (meth) acrylate.

6. Cosmetic composition according to claim 1, the ethylenic monomer copolymers of (Ci-C6) (C3-C12) cycloalkyl (alkyl)acrylate and (C1-C4) alkyl (C1-C4) (alkyl)acrylate are copolymers of (C3-C12) cycloalkyl (meth) acrylate and (Cl-C4) alkyl (meth) acrylate.

7. Cosmetic composition according to claim 1, wherein the fatty substance is a volatile hydrocarbon.

8. Cosmetic composition according to claim 1, wherein the hydrophilic ingredients and the hydrophilic active agent are a moisturizing agent, a desquamating agent, a humectant, an anti-aging agent, a healing agent, an antibacterial agent, a texture modifier, a colorant, a pigment modifying agent, a skin lightening agent, a vitamin, a bulking agent or a combination thereof.

9. Cosmetic composition according to claim 1, further comprising water, a colorant, an antioxidant, an ultraviolet (UV) filter, a mattifying agent or a combination thereof.