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US 8,465,552 B2Granted
Thickened hair colors
AssigneeISP Investments Inc.
InventorsJose Martinez-Santiago, Anand Ramchandra Mahadeshwar
Life of this patent
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Abstract
Described herein are beneficial hair color mixes comprising lightly- to moderately-crosslinked PVP. The color mix may be derived from one, two, or more parts, and the color mix exhibits satisfactory viscosity, stability, and formulation compatibility.
Claims20
A composition for coloring hair comprising either:
- A) a system comprising a color base and a developer wherein at least one of said color base and said developer comprises lightly- to moderately-crosslinked poly(N-vinyl-2-pyrrolidone (PVP);
- or
- B) a color mix wherein said color mix comprises lightly- to moderately-crosslinked poly(N-vinyl-2-pyrrolidone (PVP).
A method of coloring hair comprising:
- a. applying a color mix comprising lightly- to moderately-crosslinked poly(N-vinyl-2-pyrrolidone (PVP) to hair.
Dependencies are inferred from the claim text.