Patent ID: 8119753

Claim:
A silicone hydrogel comprising monomeric units of one or more amino monomers, wherein the amino monomers are of formula IA, IB, IIA or IIB wherein R 1 , R 2 and R 3 are independently selected from hydrogen, C 1 -C 6 alkyl or CH 2 OH; R 4 is a C 1 -C 10 alkyl optionally substituted with hydroxyl or carboxylic acid; E is a polymerizable group; X is an anion suitable for quaternary nitrogen; and n is 0, 1, 2, or 3 and m is an integer from 1 to 8 and monomeric units of one or more silicone monomers of formula P-Q-P, wherein j, k and m are independent integers from 1 to 6, 1is an integer from 2 to 10 and m is an integer from 4 to 50; and R 1 is an aliphatic diradical selected from C 2 -C 10 alkylene, alkylene with an in-chain C 5 -C 6 cycloalkyl, or alkylene with an in-chain phenyl.