Patent ID: 6497864
Filing Date: 2002-12-24
Classification: A61K,A61Q

Abstract:
A composition comprising:(1) at least one polymer (A) chosen such that a film obtained by drying a mixture of said at least one polymer (A) and at least one solvent chosen from ethanol and water, at room temperature and at a relative humidity level ranging from 45% to 55%, exhibits a mechanical profile defined by at least: (i) a degree of elongation at break (&egr;b) of greater than or equal to 300%; and (ii) a degree of recovery at 300 seconds (R300) of greater than or equal to 45%; with the proviso that when said degree of recovery at 300 seconds ranges from 45% to 60%, said degree of elongation is less than 1300%; and (2) at least one nonionic film-forming polymer (B), different from said at least one polymer (A), chosen from polyalkyloxazolines, vinyl acetate homopolymers, copolymers of vinyl acetate and of acrylic ester, copolymers of vinyl acetate and of ethylene, copolymers of vinyl acetate and of maleic ester, copolymers of polyethylene and of maleic anhydride, alkyl acrylate homopolymers, alkyl methacrylate homopolymers, acrylic ester copolymers, copolymers of acrylonitrile and of at least one nonionic monomer chosen from butadiene and alkyl (meth)acrylates, copolymers of alkyl acrylate and of urethane, guar gums, polymers derived from hydroxystyrene, vinyllactam homopolymers, and vinyllactam copolymers.