# US 10,864,156 B2 · Compositions and methods for treating hair > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,864,156 B2 - Document ID: US10864156B2 - Status: Granted - Kind: B2 - Application number: 15/805,958 - Filed: 2017-11-07 - Published: 2018-06-07 - Granted: 2020-12-15 - Earliest claimed: 2013-06-28 - Assignees: L'oreal - Applicants: L'oreal - Inventors: Siliu Tan; Nghi Van Nguyen; Jim Singer; Jean-Thierry Simonnet - Web page: https://patentgrep.com/patent/US10864156B2 ## CPC - A61K 8/87: Polyurethanes - A45D 7/06: combined chemical and thermal - A61K 8/8147: {Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers} - A61Q 5/06: Preparations for styling the hair, e.g. by temporary shaping or colouring - A45D 2007/002: {Processes of dressing hair} - A61K 2800/594: Mixtures of polymers - 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) - A45D: HAIRDRESSING OR SHAVING EQUIPMENT (wigs, toupees or the like A41G3/00, A41G5/00; hairdressers' chairs A47C1/04; hair cutting appliances, razors B26B); EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING - A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS ## Abstract Disclosed are hair styling compositions comprising at least two latex polymers chosen from acrylate and polyurethane polymers, wherein at least one latex polymer is a film-forming polymer. Methods of styling the hair are also disclosed. ## Claims ### Claim 1 A method of styling the hair, said method comprising applying a composition to the hair, said composition comprising: (a) latex polymer A having a Young's modulus ranging from about 0.1 MPa to about 10 MPa, and a strain, under stress at 0.5 MPa, of at least about 1%, wherein latex polymer A is Acrylates copolymer, Acrylates/Ethylhexyl Acrylate copolymer, Acrylates/VA copolymer, Polyurethane-34, Polyurethane-32, or Polyurethane-48; and (b) latex polymer B having a Young's modulus ranging from about 10 MPa to about 6 GPa, and a strain, under stress at 0.5 MPa, of less than about 5%, wherein latex polymer B is Acrylates copolymer, Polyacrylate-2 crosspolymer, Styrene/Acrylic copolymer, Polyurethane-35, Polyurethane-1, or Polycarbamyl Polyglycol Ester; with the proviso that when latex polymer A is an acrylate polymer, latex polymer B is a polyurethane polymer; and when latex polymer A is a polyurethane polymer, latex polymer B is an acrylate polymer; wherein the total combined amount of latex polymers A and B ranges from about 0.1% to about 30% by weight, relative to the weight of the composition; wherein the weight ratio of latex polymers A:B ranges from about 10:1 to about 1:10; and wherein said composition is in a non-aerosol form chosen from a cream, a foam, a lotion, an emulsion, or a liquid. ### Claim 2 (depends on 1) The method of claim 1, further comprising a step of treating the hair with heat at a temperature ranging from about 25° C. to about 250° C. before, during, or after the application of said composition. ### Claim 3 A method of styling the hair, said method comprising applying to the hair a composition comprising: (1) an aqueous dispersion comprising: (a) latex polymer A having a Young's modulus ranging from about 0.1 MPa to about 10 MPa, and a strain, under stress at 0.5 MPa, of at least about 1%, wherein latex polymer A is Acrylates copolymer, Acrylates/Ethylhexyl Acrylate copolymer, Acrylates/VA copolymer, Polyurethane-34, Polyurethane-32, or Polyurethane-48; and (b) latex polymer B having a Young's modulus ranging from about 10 MPa to about 6 GPa, and a strain, under stress at 0.5 MPa, of less than about 5%, wherein latex polymer B is Acrylates copolymer, Polyacrylate-2 crosspolymer, Styrene/Acrylic copolymer, Polyurethane-35, Polyurethane-1, or Polycarbamyl Polyglycol Ester; with the proviso that when latex polymer A is an acrylate polymer, latex polymer B is a polyurethane polymer; and when latex polymer A is a polyurethane polymer, latex polymer B is an acrylate polymer; and (2) at least one solvent; wherein the total combined amount of latex polymers A and B ranges from about 0.1% to about 10% by weight, relative to the weight of the composition; wherein the weight ratio of latex polymers A:B ranges from about 10:1 to about 1:10; and wherein said composition is in a non-aerosol form chosen from a cream, a foam, a lotion, an emulsion, or a liquid. ### Claim 4 (depends on 3) The method of claim 3, further comprising a step of treating the hair with heat at a temperature ranging from about 25° C. to about 250° C. before, during, or after the application of said composition. ### Claim 5 (depends on 1) The method of claim 1, wherein latex polymers A and B, independently or together, are dispersed particles in an aqueous dispersion medium. ### Claim 6 (depends on 1) The method of claim 1, wherein latex polymers A and B are present in a total combined amount ranging from about 0.5% to about 10% by weight, relative to the weight of the composition. ### Claim 7 (depends on 1) The method of claim 1, wherein latex polymers A and B are present in individual amounts ranging from about 0.05% to about 10% by weight, relative to the weight of the composition. ### Claim 8 (depends on 1) The method of claim 1, wherein latex polymers A and B are present in individual amounts ranging from about 1% to about 15% by weight, relative to the weight of the composition. ### Claim 9 (depends on 1) The method of claim 1, wherein the weight ratio of latex polymers A:B ranges from about 1:5 to about 5:1. ### Claim 10 (depends on 3) The method of claim 3, wherein latex polymers A and B are present in a total combined amount ranging from about 0.5% to about 10% by weight, relative to the weight of the composition. ### Claim 11 (depends on 3) The method of claim 3, wherein latex polymers A and B are present in individual amounts ranging from about 0.05% to about 10% by weight, relative to the weight of the composition. ### Claim 12 (depends on 3) The method of claim 3, wherein latex polymers A and B are present in individual amounts ranging from about 0.5% to about 2.5% by weight, relative to the weight of the composition. ### Claim 13 (depends on 3) The method of claim 3, wherein the weight ratio of latex polymers A:B ranges from about 1:5 to about 5:1.