# US 10,369,387 B2 · Cosmetic compositions capable of forming a multilayer structure after application to a keratinous material > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,369,387 B2 - Document ID: US10369387B2 - Status: Granted - Kind: B2 - Application number: 15/445,634 - Filed: 2017-02-28 - Published: 2018-08-30 - Granted: 2019-08-06 - Earliest claimed: 2017-02-28 - Assignees: L'oreal - Applicants: L'oréAl - Inventors: Rita Jaky El-Khouri; Jody Ebanks; Rabia Ahmad - Web page: https://patentgrep.com/patent/US10369387B2 ## CPC - A61K 8/891: saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone - A61K 8/31: Hydrocarbons - A61K 8/893: modified by an alkoxy or aryloxy group, e.g. behenoxy dimethicone or stearoxy dimethicone - A61Q 1/02: Preparations containing skin colorants, e.g. pigments (preparations in powder form A61Q1/12) - A61K 2800/31: Anhydrous - A61K 2800/882: Mixing prior to application - A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D) - A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS ## Abstract Cosmetic compositions (e.g., foundation, primer, eye shadow or other skin composition) capable of forming a multilayer structure after application to a keratinous material are provided, as well as methods of using same. Certain compositions comprise at least two immiscible components: Component A which comprises about 0.01% to 60% by weight with respect to the total weight of the composition of at least one silicone- and/or hydrocarbon-containing film forming agent having at least one glass transition temperature lower than normal human body temperature; and Component B which comprises about 0.01% to 90% by weight with respect to the total weight of the composition of one or more silicone compounds in amounts sufficient to achieve a viscosity of about 1,000 cSt to 2,000,000 cSt, wherein the weight ratio of the silicone- and/or hydrocarbon-containing film forming agent(s) in Component A to silicone compound(s) in Component B is from about 1:50 to 1.5:1. ## Claims ### Claim 1 A cosmetic composition capable of forming a multilayer structure after application to skin, wherein the cosmetic composition comprises at least two immiscible components: Component A which comprises about 0.01% to 60% by weight with respect to the total weight of the composition of at least one silicone- and/or hydrocarbon-containing film forming agent having at least one glass transition temperature which is lower than normal human body temperature; and Component B which comprises about 0.01% to 90% by weight with respect to the total weight of the composition of one or more silicone compounds in amounts sufficient to achieve a viscosity of about 1,000 cSt to 22,000,000 cSt, wherein the weight ratio of the silicone- and/or hydrocarbon-containing film forming agent(s) in Component A to silicone compound(s) in Component B is from about 1:50 to 1.5:1, and wherein, prior to application to skin, the cosmetic composition is mixed such that Component A and Component B are temporarily miscible upon application to skin and, after application to skin, Component A separates from Component B to form a multilayer structure on skin comprising Layer A corresponding to Component A and Layer B corresponding to Component B. ### Claim 2 (depends on 1) The cosmetic composition of claim 1, wherein the cosmetic composition comprises the at least two immiscible components prior to application. ### Claim 3 (depends on 1) The cosmetic composition of claim 1, further comprising a pigment. ### Claim 4 (depends on 3) The cosmetic composition of claim 3, wherein the pigment is an inorganic pigment. ### Claim 5 (depends on 4) The cosmetic composition of claim 4, wherein the inorganic pigment is selected from the group consisting of iron oxide, titanium oxide, ultramarine blue and combinations thereof. ### Claim 6 (depends on 1) The cosmetic composition of claim 1, further comprising a mattifying agent selected from the group consisting of a talc, silica, silicone elastomer, polyamide, wax, and combinations thereof. ### Claim 7 (depends on 1) The cosmetic composition of claim 1, wherein the cosmetic composition is anhydrous. ### Claim 8 (depends on 1) The cosmetic composition of claim 1, wherein Component A comprises at least one silicone-containing film forming agent having at least one glass transition temperature lower than 60° C. ### Claim 9 (depends on 1) The cosmetic composition of claim 1, further comprising a skin active agent, skin adjuvant, or UV filter. ### Claim 10 (depends on 1) The cosmetic composition of claim 1, wherein the silicone compound comprises at least one polymer selected from the group consisting of a silicone gum, a silicone fluid, and mixtures thereof. ### Claim 11 (depends on 1) The cosmetic composition of claim 1, wherein the at least one silicone- and/or hydrocarbon-containing film forming agent comprises a hydrocarbon-containing film forming agent selected from the group consisting of polysaccharides, high viscosity esters, polybutenes, polyisobutenes, polyhydrogenated butenes, acrylic polymers, acrylate copolymers, vinyl pyrrolidone (VP) containing homopolymers and copolymers, polyurethanes, polyolefins and mixtures thereof. ### Claim 12 (depends on 1) The cosmetic composition of claim 1, wherein the at least one at least one silicone- and/or hydrocarbon-containing film forming agent comprises at least one film forming agent selected from the group consisting of a silicone resin, a silicone acrylate copolymer, and mixtures thereof. ### Claim 13 (depends on 1) A kit comprising: (a) the cosmetic composition according to claim 1; (b) at least one container which contains the cosmetic composition according to claim 1; and (c) at least one applicator. ### Claim 14 (depends on 13) The kit of claim 13, wherein the at least one container is configured to mix Components A and B. ### Claim 15 (depends on 1) A method of applying the cosmetic composition of claim 1 to a keratinous material comprising mixing the cosmetic composition to form a mixed composition in which Component A and Component B are temporarily miscible, and applying the mixed composition to the keratinous material. ### Claim 16 (depends on 15) The method of claim 15, wherein the keratinous material comprises skin. ### Claim 17 (depends on 15) The method of claim 15, wherein the silicone compound comprises at least one polymer selected from the group consisting of a silicone gum, a silicone fluid, and mixtures thereof. ### Claim 18 (depends on 15) The method of claim 15, wherein the at least one silicone- and/or hydrocarbon-containing film forming agent comprises a hydrocarbon-containing film forming agent selected from the group consisting of polysaccharides, high viscosity esters, polybutenes, polyisobutenes, polyhydrogenated butenes, acrylic polymers, acrylate copolymers, vinyl pyrrolidone (VP) containing homopolymers and copolymers, polyurethanes, polyolefins and mixtures thereof. ### Claim 19 (depends on 15) The method of claim 15, wherein the at least one at least one silicone- and/or hydrocarbon-containing film forming agent comprises at least one film forming agent selected from the group consisting of a silicone resin, a silicone acrylate copolymer, and mixtures thereof. ### Claim 20 (depends on 15) The method of claim 15, wherein the composition further comprises a pigment.