Patent ID: 8178079
Filing Date: 2012-05-15
Classification: A61K,A61P,A61Q,C08F

Abstract:
1. An ethylenic copolymer, which is not cross-linked, consisting essentially of, as a weight percentage relative to the total weight of the copolymer: a) an amount ranging from 10% to 60% by weight of at least one monomer chosen from monomers of formula (I) and salts thereof: wherein: R Z is a divalent group chosen from —COO—, —CONH—, —CONCH x is 0 or 1; R m is 0 or 1; n ranges from 3 to 300; R the at least one monomer of formula (I) has a molecular weight ranging from 500 to 13,000 g/mol; and b) an amount ranging from 40% to 90% by weight of at least one essentially cationic monomer chosen from: wherein: R Z′ is a divalent group chosen from —COO—, —CONH—, —CONCH x′ is 0 or 1; R m′ is 0 or 1; X, in formula (IIa), is chosen from: Y is chosen from —COOH, —SO X′ Y″ is a group chosen from —COO R′ n′ ranges from 1 to 100; X″ and salts of said ethylenic copolymer.