Patent ID: 9255199
Filing Date: 2016-02-09
CPC Classification: C07F,C08L,G02C

Claim Text:
1. A hydrogel composition comprising a silicone-containing monomer having the general formula: or wherein a is 1 to about 50; b is 0 to about 100; each R is independently selected from the group consisting of monovalent aliphatic, cycloaliphatic or aromatic hydrocarbon groups of 1 to about 10 carbons and halogenated hydrocarbon groups of 1 to about 10 carbons; Z is a polyether having the general formula: wherein n is 1 to about 20; p and q individually are 0 to about 100; R r is 0 to about 50 and the sum of p+q+r is greater than 0; and X is a polyether-capping group having the general formula: wherein R 3 and R 4 independently are either hydrogen or a substituted or unsubstituted saturated monovalent hydrocarbon group of 1 to about 20 carbons.