Patent ID: 9090741
Filing Date: 2015-07-28
Classification: C08G,C11D

Abstract:
1. A comb polymer composed of a main polymer chain and of polyester side chains linked via ester groups to the main polymer chain, wherein (i) the main polymer chain is a polycarboxylic acid or a copolymer polycarboxylic acid (A), (ii) the polyester side chains comprise the constituents (B1) C (iii) the total mass percentage of the polyester side chains B1+B2+C is 80% to 99.9%, based on the total mass of the comb polymer; and (iv) the polyester side chains are obtained by an esterification reaction of components B1, B2, and C in a B1+B2/C mass ratio of 2:1 to 100:1.