Patent ID: 6261544
Filing Date: 2001-07-17
Classification: A61K,A61P,A61Q,Y10S

Abstract:
A method for treatment of the skin, comprising topically applying an effective amount of a liquid or semi-solid formulation comprising one or more hydroxy acid copolymers in combination with a suitable carrier for topical application to skin in need of treatment, wherein the hydroxy acid copolymer comprises polymerized hydroxy acids covalently joined to at least one polymer block, and wherein the hydroxy acid copolymer has the formulaPaHb,wherein P is a hydrophilic polymer block consisting predominantly of non-hydroxy acid subunits, H is a polymer block consisting predominantly of hydroxy acid subunits, a is the number of P blocks, b is the number of H blocks, a and b are integers of at least one, and the copolymer is either a linear, brush, star or branched copolymer, andwherein the copolymer further comprises groups capable of being polymerized to crosslink the block copolymers, andwherein the formulation is in a form selected from the group consisting of powders, gels, creams, ointments, emulsions, foams, aerosols, sprays, and lotions.