# US 9,433,567 B2 · Skin cosmetic composition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,433,567 B2 - Document ID: US9433567B2 - Status: Granted - Kind: B2 - Application number: 14/291,755 - Filed: 2014-05-30 - Published: 2015-04-23 - Granted: 2016-09-06 - Earliest claimed: 2013-10-17 - Assignees: Kao Corporation - Applicants: Kao Corporation - Inventors: Tomokazu Yoshida; Hidehiro Nagasawa - Web page: https://patentgrep.com/patent/US9433567B2 ## CPC - A61K 8/361: {Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof} - A61K 8/0204: {Specific forms not provided for by any of groups A61K8/0208 - A61K8/14} - A61K 8/0295: {Liquid crystals} - A61K 8/19: containing inorganic ingredients - A61K 8/31: Hydrocarbons - A61K 8/34: Alcohols - A61K 8/342: {Alcohols having more than seven atoms in an unbroken chain} - A61K 8/36: Carboxylic acids; Salts or anhydrides thereof - A61K 8/37: Esters of carboxylic acids - A61K 8/375: {the alcohol moiety containing more than one hydroxy group} - A61K 8/41: Amines - A61K 8/44: Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof - A61K 8/891: saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone - A61K 8/92: Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof - A61Q 19/00: Preparations for care of the skin - A61Q 19/007: {Preparations for dry skin} - A61Q 19/08: Anti-ageing preparations - A61K 2800/59: Mixtures - 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 A skin cosmetic composition comprising the following components (A), (B), (C), (D), (E) and (F): (A) from 0.5 to 6% by mass of a linear saturated fatty acid having 12 to 22 carbon atoms, (B) from 0.01 to 5% by mass of an organic base, (C) from 0.01 to 1% by mass of an inorganic base, (D) from 0.5 to 6% by mass of a linear saturated alcohol having 12 to 22 carbon atoms, (E) from 0.1 to 20% by mass of an oil agent, and (F) water, in which the total amount of components (A) and (D), [(A)+(D)], is from 2.5 to 12% by mass; the mass ratio (A)/[(A)+(D)], which is the mass ratio of component (A) to the total amount of components (A) and (D), [(A)+(D)], is from 0.2 to 0.7; the molar ratio (B)/[(B)+(C)], which is the molar ratio of component (B) to the total amount of components (B) and (C), [(B)+(C)], is from 5 to 60 mol %; and the molar ratio [(B)+(C)]/(A), which is the molar ratio of the total amount of components (B) and (C), [(B)+(C)], to component (A), is from 10 to 80 mol %. ## Claims ### Claim 1 A skin cosmetic composition comprising the following components (A), (B), (C), (D), (E) and (F): (A) from 0.5 to 6% by mass of a linear saturated fatty acid having 12 to 22 carbon atoms, (B) from 0.01 to 5% by mass of an organic base, (C) from 0.01 to 1% by mass of an inorganic base, (D) from 0.5 to 6% by mass of a linear saturated alcohol having 12 to 22 carbon atoms, (E) from 0.1 to 20% by mass of an oil agent, and (F) water, wherein a total amount of components (A) and (D), [(A)+(D)], is from 2.5 to 12% by mass; a mass ratio (A)/[(A)+(D)], which is a mass ratio of component (A) to the total amount of components (A) and (D), [(A)+(D)], is from 0.2 to 0.7; a molar ratio (B)/[(B)+(C)], which is a molar ratio of component (B) to a total amount of components (B) and (C), [(B)+(C)], is from 5 to 60 mol %; and a molar ratio [(B)+(C)]/(A), which is a molar ratio of the total amount of components (B) and (C), [(B)+(C)], to component (A), is from 10 to 80 mol %. ### Claim 2 (depends on 1) The skin cosmetic composition according to claim 1, further comprising (G) a nonionic surfactant (G) in a content of 0.1 to 2% by mass. ### Claim 3 (depends on 1) The skin cosmetic composition according to claim 1, wherein component (A) is a linear saturated fatty acid having 14 to 22 carbon atoms. ### Claim 4 (depends on 1) The skin cosmetic composition according to claim 1, wherein component (A) comprises two or more linear saturated fatty acids having 12 to 22 carbon atoms different from each other in the number of carbon atoms by two or more. ### Claim 5 (depends on 1) The skin cosmetic composition according to claim 1, wherein component (B) is an aminomethyl propanol or a basic amino acid. ### Claim 6 (depends on 1) The skin cosmetic composition according to claim 1, wherein component (B) is L-arginine. ### Claim 7 (depends on 1) The skin cosmetic composition according to claim 1, wherein component (C) is sodium hydroxide or potassium hydroxide. ### Claim 8 (depends on 1) The skin cosmetic composition according to claim 1, wherein component (D) is a linear saturated alcohol having 14 to 22 carbon atoms. ### Claim 9 (depends on 1) The skin cosmetic composition according to claim 1, wherein component (E) comprises at least one selected from the group consisting of a hydrocarbon oil, an ester oil and a silicone oil. ### Claim 10 (depends on 1) The skin cosmetic composition according to claim 1, wherein component (E) comprises an oil agent having a refraction index of 1.46 to 1.6. ### Claim 11 (depends on 2) The skin cosmetic composition according to claim 2, wherein a mass ratio {[(A)+(D)]/(G)}, which is a mass ratio of the total amount of components (A) and (D), [(A)+(D)], to component (G), is from 3 to 30. ### Claim 12 (depends on 1) The skin cosmetic composition according to claim 1, wherein a mass ratio {(E)/[(A)+(D)]}, which is a mass ratio of component (E) to the total amount of components (A) and (D), [(A)+(D)], is from 0.1 to 3. ### Claim 13 (depends on 1) The skin cosmetic composition according to claim 1, having a bulk lamellar structure and a concentric lamella structure. ### Claim 14 (depends on 1) A method of using the skin cosmetic composition according to claim 1, comprising applying the skin cosmetic composition to skin. ### Claim 15 (depends on 1) A method for producing the skin cosmetic composition according to claim 1, comprising steps 1 to 3: step 1: mixing components (B), (C) and (F), and then dissolving the mixture at 60 to 100° C. homogeneously to give a water phase, step 2: mixing components (A), (D) and (E), and then dissolving the mixture at 60 to 100° C. homogeneously to give an oil phase, and step 3: mixing the water phase obtained in step 1 and the oil phase obtained in step 2 homogeneously, and then cooling the mixture to 5 to 30° C.