Patent ID: 8076434
Filing Date: 2011-12-13
Classification: C08F,C11D

Abstract:
1. An amphoteric polymer comprising: a structure unit (a) derived from a cationic group-containing monomer (A); and a structure unit (b) derived from a carboxyl group-containing monomer (B), the cationic group-containing monomer (A) represented by the formula (1) or (1′): wherein R wherein, the structure unit (a) is present at a level of 1 to 99% by mass based on 100% by mass of all structure units derived from all monomers in the amphoteric polymer, and the structure unit (b) is present at a level of 1 to 99% by mass based on 100% by mass of all the structure units derived from all the monomers in the amphoteric polymer.