Back to results
US 9,789,050 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 polyurethane polymers, wherein at least one latex polyurethane 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.
Claims19
A hair styling composition comprising:
- (a) latex polyurethane 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 polyurethane polymer A is Polyurethane-34, Polyurethane-32, or Polyurethane-48;
- (b) latex polyurethane 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 polyurethane polymer B is 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 polyurethane 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 polyurethane polymers A:B ranges from about 10:1 to about 1:10;
- and
- wherein latex polyurethane polymers A and B are dispersed particles in an aqueous dispersion medium.
5 more elements
A method of styling the hair, said method comprising applying to the hair a composition comprising:
- (a) latex polyurethane 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 polyurethane polymer A is Polyurethane-34, Polyurethane-32, or Polyurethane-48;
- (b) latex polyurethane 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 polyurethane polymer B is 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 polyurethane 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 polyurethane polymers A:B ranges from about 10:1 to about 1:10;
- and
- wherein latex polyurethane polymers A and B are dispersed particles in an aqueous dispersion medium.
5 more elements
Dependencies are inferred from the claim text.