# US 10,765,612 B2 · Dye composition comprising 12-hydroxystearic acid, an organic amine and a dye > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,765,612 B2 - Document ID: US10765612B2 - Status: Granted - Kind: B2 - Application number: 16/463,921 - Filed: 2017-11-27 - Published: 2019-12-12 - Granted: 2020-09-08 - Earliest claimed: 2016-11-28 - Assignees: L'oreal - Applicants: L'oreal - Inventors: Anne-Laure Fameau; Koudedji Sow - Web page: https://patentgrep.com/patent/US10765612B2 ## CPC - A61K 8/365: Hydroxycarboxylic acids; Ketocarboxylic acids - A61K 8/22: Peroxides; Oxygen; Ozone - A61K 8/23: Sulfur; Selenium; Tellurium; Compounds thereof - A61K 8/347: {Phenols} - A61K 8/41: Amines - A61K 8/411: {Aromatic amines, i.e. where the amino group is directly linked to the aromatic nucleus} - A61K 8/415: {Aminophenols} - A61K 8/43: Guanidines - A61K 8/44: Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof - A61K 8/463: {containing sulfuric acid derivatives, e.g. sodium lauryl sulfate} - A61Q 5/10: Preparations for permanently dyeing the hair - A61K 2800/4324: in preparations for permanently dyeing the hair - A61K 2800/592: Mixtures of compounds complementing their respective functions - A61K 2800/87: Application Devices; Containers; Packaging - 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 Dye composition comprising 12-hydroxystearic acid, an organic amine and a dye The invention relates to a dye composition comprising 12-hydroxystearic acid, one or more organic amines and one or more dyes chosen from oxidation dyes and direct dyes. The invention also relates to a dyeing process using said dye composition. ## Claims ### Claim 1 A dye composition comprising: 12-hydroxystearic acid, at least one organic amine, and at least one dye chosen from oxidation dyes or direct dyes. ### Claim 2 (depends on 1) The dye composition according to claim 1, wherein the 12-hydroxystearic acid is present in an amount ranging from 0.1% to 40% by weight, relative to the total weight of the dye composition. ### Claim 3 (depends on 1) The dye composition according to claim 1, wherein the at least one organic amine is chosen from monoethanolamine (MEA), diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, guanidine carbonate, or mixtures thereof. ### Claim 4 (depends on 1) The dye composition according to claim 1, wherein the at least one organic amine is present in an amount ranging from 0.1% to 20% by weight, relative to the total weight of the dye composition. ### Claim 5 (depends on 1) The dye composition according to claim 1, wherein the at least one dye is chosen from at least one oxidation dye, and optionally at least one direct dye. ### Claim 6 (depends on 1) The dye composition according to claim 1, wherein the at least one dye is chosen from para-phenylenediamines, para-aminophenols, pyrazole derivatives, meta-phenylenediamines. meta-aminophenols, meta-diphenols, or mixtures thereof. ### Claim 7 (depends on 1) The dye composition according to claim 1, wherein the at least one dye is present in an amount ranging from 0.0001% to 20% by weight, relative to the total weight of the dye composition. ### Claim 8 (depends on 1) The dye composition according to claim 1, further comprising water in amount ranging from 20% to 95% by weight, relative to the total weight of the dye composition. ### Claim 9 (depends on 1) The dye composition according to claim 1, further comprising at least one alkaline agent other than organic amines, chosen from aqueous ammonia, sodium or potassium hydroxide, sodium or potassium carbonate, sodium or potassium bicarbonate, or mixtures thereof. ### Claim 10 (depends on 9) The dye composition according to claim 9, wherein the at least one alkaline agent other than organic amines is present in an amount ranging from 0.01% to 30% by weight, relative to the total weight of the dye composition. ### Claim 11 A process for preparing a cosmetic composition, comprising: mixing 12-hydroxystearic acid, at least one organic amine, and at least one dye, optionally heating the mixture for a period of time ranging from 1 to 10 minutes at a temperature ranging from 60 to 70° C., with or without stirring, and cooling the mixture to room temperature. ### Claim 12 A ready-to-use composition resulting from the extemporaneous mixing a dye composition (A) comprising 12-hydroxystearic acid, at least one organic amine, and at least one dye chosen from oxidation dyes or direct dyes, with an oxidizing composition (B) comprising at least one oxidizing agent. ### Claim 13 (depends on 12) The ready-to-use composition according to claim 12, wherein the oxidizing composition (B) comprises the least one oxidizing agent in an amount ranging from 0.1% to 20% by weight, relative to the total weight of the oxidizing composition (B). ### Claim 14 (depends on 13) The ready-to-use composition according to claim 13, wherein the at least one oxidizing agent is hydrogen peroxide. ### Claim 15 A multi-compartment device for dyeing keratin fibers, comprising at least two compartments, wherein: the first compartment contains a dye composition (A) comprising 12-hydroxystearic acid, at least one organic amine, and at least one dye chosen from oxidation dyes or direct dyes; and the second compartment contains an oxidizing composition (B) comprising at least one oxidizing agent. ### Claim 16 A process for dyeing keratin fibers, the process comprising applying to the fibers a dye composition comprising: 12-hydroxystearic acid, at least one organic amine, and at least one dye chosen from oxidation dyes or direct dyes. ### Claim 17 A process for dyeing keratin fibers, the process comprising applying to the fibers a ready-to-use composition resulting from the extemporaneous mixing a dye composition (A) comprising 12-hydroxystearic acid, at least one organic amine, and at least one dye chosen from oxidation dyes or direct dyes, with an oxidizing composition (B) comprising at least one oxidizing agent.