Compositions and methods for treating hair

Patent metadata

Field	Value
Publication number	US-10874601-B2
Application number	US-201715852130-A
Country	US
Kind code	B2
Filing date	Dec 22, 2017
Priority date	Jun 28, 2013
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

Disclosed are hair styling compositions comprising at least two latex acrylate polymers, wherein at least one latex acrylate polymer is a film-forming polymer. Methods of styling the hair are also disclosed.

First claim

What is claimed is:

1. A method of styling the hair, said method comprising applying to the hair a composition comprising:
(a) latex acrylate 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 acrylate Polymer A is chosen from Acrylates copolymer, Acrylates/Ethylhexyl Acrylate copolymer, or Acrylates/VA copolymer; and
(b) latex acrylate 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 acrylate Polymer B is chosen from Acrylates copolymer, Polyacrylate-2 crosspolymer, or Styrene/Acrylic copolymer;
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 acrylate polymers A:B ranges from about 10:1 to about 1:1 on a dry weight basis; and
wherein said composition is in a non-aerosol form chosen from a cream, a foam, a lotion, an emulsion, or a liquid.

2. 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.

3. A method of styling the hair, said method comprising applying to the hair a composition comprising:
(1) an aqueous dispersion comprising:
(a) latex acrylate 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 acrylate Polymer A is chosen from Acrylates copolymer, Acrylates/Ethylhexyl Acrylate copolymer, or Acrylates/VA copolymer; and
(b) latex acrylate 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 acrylate Polymer B is chosen from Acrylates copolymer, Polyacrylate-2 crosspolymer, or Styrene/Acrylic copolymer; 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 acrylate polymers A:B ranges from about 10:1 to about 1:1 on a dry weight basis; and
wherein said composition is in a non-aerosol form chosen from a cream, a foam, a lotion, an emulsion, or a liquid.

4. 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.

5. The method according to claim 1 , wherein the latex acrylate polymers A and B are, independently or together, dispersed particles in an aqueous dispersion medium.

6. The method according to claim 1 , wherein the latex acrylate polymers A and B are present in a combined amount ranging from about 0.5% to about 10% by weight, relative to the weight of the composition.

7. The method according to claim 1 , wherein each of the latex acrylate polymers A and B is present in individual amounts ranging from about 0.05% to about 10% by weight, relative to the weight of the composition.

8. The method according to claim 1 , wherein each of the latex acrylate polymers A and B is present in individual amounts ranging from about 1% to about 15% by weight, relative to the weight of the composition.

9. The method according to claim 1 , wherein the weight ratio of latex acrylate polymers A:B ranges from about 5:1 to about 1:1 on a dry weight basis.

10. The method according to claim 1 , wherein the weight ratio of latex acrylate polymers A:B ranges from about 3:1 to about 1:1 on a dry weight basis.

11. The method according to claim 1 , wherein the weight ratio of latex acrylate polymers A:B ranges from about 10:1 to about 3:1 on a dry weight basis.

12. The method according to claim 1 , wherein the weight ratio of latex acrylate polymers A:B ranges from about 10:1 to about 5:1 on a dry weight basis.

13. The method according to claim 3 , wherein latex acrylate polymers A and B are present in a combined amount ranging from about 0.5% to about 10% by weight, relative to the weight of the composition.

14. The method according to claim 3 , wherein each of latex acrylate polymers A and B is present in individual amounts ranging from about 0.05% to about 10% by weight, relative to the weight of the composition.

15. The method according to claim 3 , wherein latex acrylate polymers A and B are present in a combined amount up to about 8% by weight, relative to the weight of the composition.

16. The method according to claim 3 , wherein weight ratio of latex acrylate polymers A:B ranges from about 5:1 to about 1:1 on a dry weight basis.

17. The method according to claim 3 , wherein the weight ratio of latex acrylate polymers A:B ranges from about 3:1 to about 1:1 on a dry weight basis.

18. The method according to claim 3 , wherein the weight ratio of latex acrylate polymers A:B ranges from about 10:1 to about 3:1 on a dry weight basis.

19. The method according to claim 3 , wherein the weight ratio of latex acrylate polymers A:B ranges from about 10:1 to about 5:1 on a dry weight basis.

Assignees

• Oreal

Inventors

• Tan Siliu
• Nguyen Nghi Van
• Singer Jim
• Simonnet Jean-Thierry

Classifications

• A61Q5/06

  Preparations for styling the hair, e.g. by temporary shaping or colouring · CPC title

• A45D7/06

  combined chemical and thermal · CPC title

• A61K2800/594

  Mixtures of polymers · CPC title

• A61K8/8152

  Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers · CPC title

• A45D2007/002

  Processes of dressing hair · CPC title