Patent ID: 9622959
Date: 2017-04-18
CPC Classifications: A61K,A61P,A61Q,C08F,C09J

Claim:
1. A water-soluble or water-swellable polymer, wherein the repeating structural units consist of a) 90.0 to 99.99 mol % of at least one repeating structural unit of formula (1) in which R A is a linear or branched C Q b) 0.01 to 10.0 mol % of at least one repeating crosslinking structural unit of formula (2) in which R R and R X is a chemical bond, methylene, ethylene or a linear or branched alkylene group with 3 carbon atoms, Y and Y R D, E and F in each case independently of one another, is methylene-oxy, ethylene-oxy, propylene-oxy, a linear or branched alkylene group with 1 to 6 carbon atoms, a linear or branched, singly or multiply unsaturated alkenylene group with 2 to 6 carbon atoms, a linear or branched monohydroxyalkylene group with 2 to 6 carbon atoms or a linear or branched dihydroxyalkylene group with 3 to 6 carbon atoms, and o, p and q in each case independently of one another, is an integer from 0 to 50 and the sum o+p+q≧3.