Patent ID: 9499648
Filing Date: 2016-11-22
CPC Classification: A61K,A61Q,C08F,C11D

Claim Text:
1. A water-soluble copolymer comprising, by mass relative to the total mass of the copolymer, units derived from: 22.5 to 30% of at least one cationic monomer whose cationicity comes exclusively from one or more quaternary ammonium functional groups; 60 to 70% of at least one nonionic monomer; 0.01 to 10% of at least one monomer of formula (I); in which: R Z is a functional group selected from the group consisting of a covalent bond, an oxygen atom, the divalent group —CH n is an integer between 2 and 200; R the copolymer having a cationic charge density between 0.05 and 3 meq/g.