Patent ID: 8822389
Filing Date: 2014-09-02
Classification: C08F,C08G,C09K

Abstract:
1. A dendritic comb-shaped polymer thickening agent, which is a copolymer obtained by copolymerization of monomer (A) and monomer (B), wherein the monomer (A) is one or more water-soluble unsaturated monomer with olefin chain, and the monomer (B) is at least one monomer with the following general structure: wherein R 1 , R 2 is selected from H or C 1 ˜C 12 alkyl group, respectively; R 3 , R 4 , R 5 is selected from H or C 1 ˜C 8 bivalent alkyl group, C 1 ˜C 8 bivalent alkylaryl group, C 1 ˜C 8 bivalent alkyl ether or C 1 ˜C 8 bivalent alkyl ester group, respectively, and when R 3 , R 4 , or R 5 is H, R 3 , R 4 , R 5 is not bonded to A′; A′ is selected from COO − or OH; the content of the monomer (A) is 70˜99.99% of the total mass of the monomer (A) and the monomer (B), and the content of monomer (B) is 0.01˜30% of the total mass of the monomer (A) and the monomer (B).