# US 11,896,697 B2 · Composition for keratin fibers > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,896,697 B2 - Document ID: US11896697B2 - Status: Granted - Kind: B2 - Application number: 16/406,610 - Filed: 2019-05-08 - Published: 2019-10-31 - Granted: 2024-02-13 - Earliest claimed: 2015-05-12 - Assignees: L'oreal - Applicants: L'oreal - Inventors: Gregory Plos; Laetitia Feuillette; Natsumi Komure - Web page: https://patentgrep.com/patent/US11896697B2 ## CPC - A61K 8/44: Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof - A61K 8/466: {containing sulfonic acid derivatives; Salts} - A61K 8/4913: {having five membered rings, e.g. pyrrolidone carboxylic acid} - A61K 8/4946: {Imidazoles or their condensed derivatives, e.g. benzimidazoles} - A61K 8/73: Polysaccharides - A61K 8/731: {Cellulose; Quaternized cellulose derivatives} - A61K 8/737: {Galactomannans, e.g. guar; Derivatives thereof} - A61Q 5/06: Preparations for styling the hair, e.g. by temporary shaping or colouring - A61K 2800/30: Characterized by the absence of a particular group of ingredients - A61K 2800/48: Thickener, Thickening system - 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 for reshaping keratin fibers with heat, comprising: (a) at least one organic alkaline agent having a pKa value of from 8.0 to 13.5; and (b) at least one polymeric thickener, (c) at least one organic acidic agent having pKa value of less than 3.5, and/or (d) at least one alkaline agent; wherein the composition has a pH of from 8.0 to 12, preferably from 8.5 to 11.5, and more preferably from 9.0 to 11.0. The composition according to the present invention is preferably a cosmetic composition, for keratin fibers, such as hair, and can be used for a process for reshaping the keratin fibers with heat. The composition according to the present invention can provide the keratin fibers with a sufficient reshaping efficiency such as strong wave intensity of the curled keratin fibers and good usability. ## Claims ### Claim 1 A method for providing keratin fibers with a wave or curl comprising: a) applying onto the keratin fibers a composition comprising: i. from 1 to 20% by weight, relative to the total weight of the composition, of at least one organic alkaline agent chosen from arginine, histidine, lysine, or mixtures of two or more thereof; ii. from 0.1 to 10% by weight, relative to the total weight of the composition, of at least one polymeric thickener; and iii. at least 50% by weight, relative to the total weight of the composition, of water; wherein the composition has a pH ranging from 9 to 11; and b) heating the keratin fibers at a temperature ranging from 50° C. to 250° C. for 1 minute to 2 hours; and c) optionally rinsing and/or drying the keratin fibers, wherein the method does not include application of reducing agents or oxidizing agents. ### Claim 2 (depends on 1) The method according to claim 1, wherein the hair is heated at a temperature ranging from 80° C. to 100° C. for about 10 minutes to about 40 minutes. ### Claim 3 (depends on 1) The method according to claim 1, wherein the keratin fibers are heated at a temperature of at least 80° C. ### Claim 4 (depends on 1) The method according to claim 1, wherein the composition further comprises at least one organic acidic agent. ### Claim 5 (depends on 1) The method according to claim 1, wherein the organic alkaline agent comprises arginine and/or histidine. ### Claim 6 (depends on 5) The method according to claim 5, wherein the polymeric thickener is chosen from cellulose, guar gum, xanthan gum, derivatives thereof, or mixtures of two or more thereof. ### Claim 7 (depends on 6) The method according to claim 6, wherein the total amount of the polymeric thickener ranges from 0.8 to 1% by weight, relative to the total weight of the composition. ### Claim 8 (depends on 7) The method according to claim 7, wherein the total amount of the organic alkaline agent ranges from 3 to 10% by weight, relative to the total weight of the composition. ### Claim 9 A method for reshaping keratin fibers comprising: a) applying onto the keratin fibers a composition comprising: i. from 0.5 to 20% by weight, relative to the total weight of the composition, of at least one organic acidic agent chosen from glycine, taurine, alanine, proline, 2-(cyclohexylamino)ethanesulfonic acid, or mixtures of two or more thereof; ii. from 0.1 to 10% by weight, relative to the total weight of the composition, of at least one polymeric thickener; iii. at least one alkaline agent, and iv. at least 50% by weight, relative to the total weight of the composition, of water; wherein the composition has a pH ranging from 9 to 11; and wherein the composition is free of methionine; b) heating the keratin fibers at 50° C. to 250° C. for 1 minute to 2 hours; and c) optionally rinsing and/or drying the keratin fibers, wherein the method does not include application of reducing agents. ### Claim 10 (depends on 9) The method according to claim 9, wherein the at least one alkaline agent is an inorganic alkaline agent chosen from alkaline metal hydroxides, alkaline earth metal hydroxides, alkaline metal phosphates, alkaline metal monohydrogenophosphates, or mixtures of two or more thereof. ### Claim 11 (depends on 9) The method according to claim 9, wherein the at least one alkaline agent is present in an amount ranging from about 0.1% to about 20% by weight, relative to the total weight of the composition. ### Claim 12 (depends on 9) The method according to claim 9, wherein the hair is heated at a temperature ranging from 80° C. to 100° C. for about 10 minutes to about 40 minutes. ### Claim 13 (depends on 9) The method according to claim 9, wherein the polymeric thickener is chosen from cellulose, guar gum, xanthan gum, derivatives thereof, or mixtures of two or more thereof. ### Claim 14 (depends on 13) The method according to claim 13, wherein the total amount of the polymeric thickener ranges from 0.5 to 1% by weight, relative to the total weight of the composition. ### Claim 15 (depends on 14) The method according to claim 14, wherein the total amount of the organic acidic agent ranges from 5 to 15% by weight, relative to the total weight of the composition. ### Claim 16 A method for providing keratin fibers with a wave or curl comprising: a) applying onto the keratin fibers a composition comprising: i. from 2 to 15% by weight, relative to the total weight of the composition, of at least one agent chosen from arginine, histidine, lysine, glycine, taurine, alanine, proline, 2-(cyclohexylamino)ethanesulfonic acid, or mixtures of two or more thereof; ii. from 0.5 to 2% by weight, relative to the total weight of the composition, of at least one polymeric thickener chosen from cellulose, guar gum, xanthan gum, derivatives thereof, or mixtures of two or more thereof; iii. optionally at least one alkaline agent; and iv. at least 50% by weight, relative to the total weight of the composition, of water; wherein the composition has a pH ranging from 9 to 11; wherein the method does not include application of reducing agents or oxidizing agents; b) heating the keratin fibers at a temperature ranging from 80° C. to 100° C.; and c) optionally rinsing and/or drying the keratin fibers. ### Claim 17 (depends on 16) The method according to claim 16, wherein the composition comprises at least one alkalizing agent chosen from alkaline metal hydroxides, alkaline earth metal hydroxides, alkaline metal phosphates, alkaline metal monohydrogenophosphates, or mixtures of two or more thereof. ### Claim 18 (depends on 16) The method according to claim 16, comprising: a) applying onto the keratin fibers a composition comprising: i. from 3 to 15% by weight, relative to the total weight of the composition, of at least one agent chosen from arginine, histidine, lysine, glycine, taurine, alanine, proline, 2-(cyclohexylamino)ethanesulfonic acid, or mixtures of two or more thereof; ii. from 0.5 to 1% by weight, relative to the total weight of the composition, of at least one polymeric thickener chosen from cellulose, guar gum, xanthan gum, derivatives thereof, or mixtures of two or more thereof; iii. optionally at least one alkaline agent chosen from alkaline metal hydroxides, alkaline earth metal hydroxides, alkaline metal phosphates, alkaline metal monohydrogenophosphates, or mixtures of two or more thereof; and iv. at least 50% by weight, relative to the total weight of the composition, of water; wherein the composition has a pH ranging from 9.5 to 10; b) heating the keratin fibers at a temperature ranging from 80° C. to 100° C. for about 10 minutes to about 40 minutes; and c) rinsing and/or drying the keratin fibers.