Patent ID: 9447216
Filing Date: 2016-09-20
CPC Classification: A61K,A61Q,C08F,C11D

Claim Text:
1. A water-soluble copolymer comprising, by mass relative to the total mass of the copolymer: 5 to 45% of at least one cationic monomer whose cationicity comes exclusively from one or more quaternary ammonium functional groups; 50 to 95% of at least one monomer of formula (I); in which: R Z is a divalent group —C(═O)—O—, or —C(═O)—NH—; n is an integer that is 2 to 200; R the copolymer having a cationic charge density of between 0.3 and 2.6 meq/g, wherein the copolymer also comprises at least one nonionic monomer distinct from the monomer of formula (I).