Patent ID: 6350434
Filing Date: 2002-02-26
Classification: A61K,A61Q,Y10S

Abstract:
A method of treating hair to fix the hair in a desired hairstyle consisting essentially of:(a) configuring the hair in the desired hairstyle; and (b) applying a hair spray composition to the hair, said hair spray composition consists essentially of (i) about 0.25% to about 6% by weight of a carboxylated polyurethane resin; (ii) 0% to about 80% by weight of an alcohol; and (iii) about 15% to about 95% by weight water, wherein the carboxylated polyurethane resin has a weight average molecular weight of about 15,000 to about 150,000, an acid value of about 7 mg to about 50 mg KOH per g resin, a melting point of about 40 C. to about 120 C. and is a reaction product of a mixture comprising: (A) about 10% to about 90% by weight of the mixture of a polyoxyalkylene diol having a number average molecular weight of about 400 to about 20,000; (B) about 0.01% to about 20% by weight of the mixture of an alkylene glycol; (C) about 3% to about 80% by weight of the mixture of an organic diisocyanate; (D) about 0.1% to about 30% by weight of the mixture of a 2,2-di(hydroxymethyl)alkanoic acid; and (E) about 0.001% to about 0.95% by weight of the mixture of water, wherein a ratio of isocyanate groups to hydroxyl groups is about 0.4 to about 1.1.