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US 9,789,051 B2Granted
Compositions and methods for treating hair
AssigneeL'oreal
InventorsSiliu Tan, Nghi Van Nguyen, Jim Singer, Jean-Thierry Simonnet
Life of this patent
Estimating the term…
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, and at least one component chosen from coalescing agents and plasticizers. Methods of styling the hair are also disclosed.
Claims20
A hair styling 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;
- (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;
- and
- at least one component chosen from coalescing agents and plasticizers;
- 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 latex polymers A and B are dispersed particles in an aqueous dispersion medium;
- with the proviso that when latex polymer A is an acrylate latex polymer, then latex polymer B is a polyurethane latex polymer;
- and when a latex polymer A is a polyurethane latex polymer, then latex polymer B is an acrylate latex polymer.
7 more elements
A method of styling the hair, said method comprising applying to the hair a 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;
- (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;
- and
- at least one component chosen from coalescing agents and plasticizers;
- 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 latex polymers A and B are dispersed particles in an aqueous dispersion medium;
- with the proviso that when latex polymer A is an acrylate latex polymer, then latex polymer B is a polyurethane latex polymer;
- and when a latex polymer A is a polyurethane latex polymer, then latex polymer B is an acrylate latex polymer.
7 more elements
Dependencies are inferred from the claim text.