# US 11,938,204 B2 · Oil-in-water emulsions of which the oil phase is in the form of a mixture of drops of different sizes > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,938,204 B2 - Document ID: US11938204B2 - Status: Granted - Kind: B2 - Application number: 16/077,049 - Filed: 2017-02-10 - Published: 2021-04-29 - Granted: 2024-03-26 - Earliest claimed: 2016-02-12 - Assignees: Capsum - Applicants: Capsum - Inventors: Mathieu Goutayer; Yan Eric Pafumi; Lucie Chatry; Hélène Balbusquier - Web page: https://patentgrep.com/patent/US11938204B2 ## CPC - A61K 8/062: {Oil-in-water emulsions} - A61K 8/11: Encapsulated compositions - A61K 8/25: Silicon; Compounds thereof - A61K 8/73: Polysaccharides - A61K 8/8152: {Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers} - A61K 8/898: containing nitrogen, e.g. amodimethicone, trimethyl silyl amodimethicone or dimethicone propyl PG-betaine - A61K 8/922: {of vegetable origin} - A61K 8/925: {of animal origin} - A61Q 5/00: Preparations for care of the hair - A61Q 17/04: Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations - A61Q 19/00: Preparations for care of the skin - A61Q 19/007: {Preparations for dry skin} - A61Q 19/08: Anti-ageing preparations - A61K 2800/41: Particular ingredients further characterized by their size - A61K 2800/42: Colour properties - A61K 2800/522: Antioxidants; Radical scavengers - A61K 2800/594: Mixtures of polymers - A61K 2800/62: Coated - A61K 2800/624: by macromolecular compounds - A61K 2800/65: Characterized by the composition of the particulate/core - 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 The present invention relates to a composition, in particular cosmetic, in the form of an oil-in-water emulsion, comprising a continuous aqueous phase and a dispersed oil phase in the form of drops (G1) and drops (G2), wherein the size of the drops (G1) is less than 500 μm and the size of the drops (G2) is greater than 500 μm. ## Claims ### Claim 1 A composition in the form of an oil-in-water emulsion, comprising a continuous aqueous phase and a dispersed oil phase in the form of drops (G1) and (G2), wherein the drops (G1) comprise an oil phase and a shell formed of at least one anionic polymer (PA1) and at least one cationic polymer (PC1), wherein the size of the drops (G1) is less than 500 μm, wherein the drops (G2) comprise an oil phase and a shell, said shell being formed of at least one anionic polymer (PA2), identical to or different from (PA1), and at least one cationic polymer (PC2), identical or different from (PC1), wherein the size of the drops (G2) is greater than 500 μm, wherein the drops (G1) and (G2) are different in nature, in regard to the nature of the anionic and cationic polymers, or oils and/or additional compounds and/or active agents wherein the anionic polymers (PA1) and (PA2) are hydrophilic, and the cationic polymers (PC1) and (PC2) are liposoluble, and wherein the composition does not include a surfactant. ### Claim 2 (depends on 1) The composition according to claim 1, wherein the oil phase of the drops (G2) comprises at least one gelling agent. ### Claim 3 (depends on 1) The composition according to claim 1, wherein the oil phase of the drops (G1) and/or drops (G2) comprises at least one oil (H1) selected from the group consisting of hydrocarbon-based oils of animal origin, synthetic esters and ethers, linear or branched hydrocarbons of mineral or synthetic origin, silicone oils, fatty alcohols having from 8 to 26 carbon atoms, fluorinated oils partially hydrocarbonated and/or siliconated and their mixtures. ### Claim 4 (depends on 1) The composition according to claim 1, wherein the anionic polymers (PA1) and (PA2), which are identical or different, are polymers comprising monomeric units comprising at least one carboxylic acid function. ### Claim 5 (depends on 1) The composition according to claim 1, wherein the composition comprises from 0.01% to 10% by weight of anionic polymer(s) (PA1) and (PA2), relative to the total weight of the composition. ### Claim 6 (depends on 1) The composition according to claim 1, wherein the cationic polymers (PC1) and (PC2), identical or different, have the following formula: in which: R1, R2 and R3, independently of each other, represent OH or CH3; R4 represents a —CH2—group or a —X—NH—group in which X is a divalent alkylene radical with C3 or C4; x is an integer from 10 to 5000; y is an integer between 2 and 1000; and z is an integer between 0 and 10. ### Claim 7 (depends on 1) The composition according to claim 1, wherein the drops (G1) and (G2) comprise from 0.01% to 10% by weight of cationic polymer(s) (PC1) and (PC2), relative to the total weight of the oil phase of the drops (G1) and (G2). ### Claim 8 (depends on 2) The composition according to claim 2, wherein the drop gelling agent (G2) is selected from the group consisting of organic, inorganic, polymeric or molecular lipophilic gelling agents; fatty substances that are solid at room temperature and pressure; and their mixtures. ### Claim 9 (depends on 8) The composition according to claim 8 wherein the gelling agent is selected from the group consisting of polyacrylates, dextrin and fatty acid esters, esters of glycerol and fatty acid(s), polyamides, and mixtures thereof. ### Claim 10 (depends on 9) The composition according to claim 9, wherein the dextrin and fatty acid esters are selected from the group consisting of dextrin palmitates, dextrin myristates, dextrin palmitates/ethylhexanoates, and mixtures thereof. ### Claim 11 (depends on 8) The composition according to claim 8, wherein the gelling agent is selected from the group consisting of modified clays, silicas and mixtures thereof. ### Claim 12 (depends on 1) The composition according to claim 1, wherein the composition comprises a weight ratio “drops (G1)/drops (G2)” of between 0.03 and 50. ### Claim 13 (depends on 1) The composition according to claim 1, further comprising at least one active agent selected from hydrating agents, healing agents, depigmenting agents, UV filters, desquamating agents, antioxidants, agents stimulating the synthesis of dermal and/or epidermal macromolecular agents, contracting agents, antiperspirants, soothing agents, anti-aging agents, perfuming agents and mixtures thereof. ### Claim 14 (depends on 1) The composition according to claim 1, characterized in that the drops (G1) and/or (G2) further comprise at least one coloring agent. ### Claim 15 (depends on 1) The composition according to claim 1, wherein the composition comprises more than 10% by weight of oil phase relative to the total weight of the composition. ### Claim 16 A composition in the form of an oil-in-water emulsion, comprising a continuous aqueous phase and a dispersed oil phase in the form of drops (G1) and (G2), wherein the drops (G1) comprise an oil phase and a shell formed of at least one anionic polymer (PA1) and at least one cationic polymer (PC1), wherein the size of the drops (G1) is less than 500 μm, wherein the drops (G2) comprise an oil phase and a shell, said shell being formed of at least one anionic polymer (PA2), identical to or different from (PA1), and at least one cationic polymer (PC2), identical or different from (PC1), wherein the size of the drops (G2) is greater than 500 μm, and wherein the drops (G1) and (G2) are different in nature, in regard to the nature of the anionic and cationic polymers, or oils and/or additional compounds and/or active agents, wherein the anionic polymers (PA1) and (PA2) are hydrophilic, and the cationic polymers (PC1) and (PC2) are lipophilic or liposoluble, wherein the anionic polymer (PA1) is selected from the group consisting of carbomers and copolymers of acrylic acid or maleic acid and other monomers, said other monomers being selected from the group consisting of: acrylamide, alkyl acrylates, C5-C8 alkyl acrylates, C10-C30 alkyl acrylates, C12-C22 alkyl methacrylates, methoxy-polyethylene glycol methacrylates, hydroxyester acrylates, crosspolymer acrylates, and mixtures thereof, and the composition does not include a surfactant. ### Claim 17 (depends on 16) The composition of claim 16, wherein the anionic polymer (PA1) is selected from the group consisting of carbomers and crosslinked acrylates/C10-30 alkyl acrylate copolymers. ### Claim 18 (depends on 16) The composition of claim 16, wherein the anionic polymer (PA1) is a carbomer. ### Claim 19 (depends on 1) The composition of claim 1, wherein at least one of the cationic polymers (PC1) and (PC2) is amodimethicone. ### Claim 20 (depends on 16) The composition of claim 16, wherein at least one of the cationic polymers (PC1) and (PC2) is amodimethicone.