Patent ID: 9322960
Filing Date: 2016-04-26
CPC Classification: C08F,C08G,G02B,G02C

Claim Text:
1. A contact lens comprising a reaction product of a polymerisable formulation comprising: (i) from 20 to 35 weight percent of at least one fluorine-containing silicone monomer having the formula: wherein n is from 1 to 10; (ii) from 15 to 35 weight percent of at least one non-fluorine containing silicone monomer; (iii) from 25 to 60 weight percent N-vinyl pyrrolidone or N-methyl-N-vinyl acetamide; (iv) from 2 to 10 weight percent 2-hydroxyethyl methacrylate, wherein the total amount of components (i) and (ii) is less than 50 weight percent.