Patent ID: 9164298
Filing Date: 2015-10-20
Classification: C08L,G02B,G02C

Abstract:
1. A silicone hydrogel contact lens comprising: a polymeric lens body that is the reaction product of a polymerizable composition comprising: a) at least one mono-functional acrylate-containing siloxane monomer having a molecular weight of less than 1000; b) at least one bi-functional acrylate-containing siloxane monomer represented by formula (II),  wherein R c) at least one hydrophilic vinyl-containing monomer; and d) at least one vinyl-containing cross-linking agent, wherein the polymerizable composition has a molar ratio of total amount of hydrophilic vinyl-containing monomer to total amount of acrylate-containing siloxane monomer of from 5:1 to 30:1, respectively and wherein the polymerizable composition has a molar ratio of total amount of polymerizable vinyl groups from the total amount of hydrophilic vinyl-containing monomer to total amount of polymerizable vinyl groups from the total amount of vinyl-containing cross-linking agents of from 100:1 to 1000:1, respectively.