Patent ID: 6692729
Filing Date: 2004-02-17
Classification: A61K,A61Q

Abstract:
A cosmetic resin composition consisting essentially of an amphoteric urethane resin having a carboxyl group and a tertiary amino group in one molecule thereof, the amphoteric urethane resin having a structural unit derived from an ethylene oxide in its structure, wherein the amphoteric urethane resin is obtained by reacting the following components (A) to (D) in excess of isocyanate groups so as to produce a prepolymer containing isocyanate groups and reacting the prepolymer with the following component (E);(A) a polyol compound; (B) a polyisocyanate compound; (C) a polyethylene oxide derivative having an active hydrogen and from about 3 to about 300 ethylene oxide units; (D) a compound having an active hydrogen and a carboxyl group; (E) a compound having an active hydrogen and a tertiary amino group.