Patent ID: 9321890
Filing Date: 2016-04-26
CPC Classification: A61L,C08G,C08L,G02B

Claim Text:
1. A method comprising contacting a silicone hydrogel contact lens with a packaging solution comprising a surface-wetting effective amount of at least one block copolymer comprising one hydrophilic segment and one hydrophobic segment having a weight average molecular weight of 300 to 1800, the block copolymer expressed by formula (b1) Formula: wherein in (b1), R R m and n are independent, ranging from 1 to 16; a is from 4 to 19; b is from 1 to 6, c is from 1 to 10,000, X is one type of group selected from the group consisting of O, NH, and S; and R under conditions sufficient to associate said block copolymer with said contact lens.