Patent ID: 7666921
Filing Date: 2010-02-23
Classification: A61L,C08F,G02B,G02C

Abstract:
1. A silicone hydrogel comprising the reaction product of about 28 weight % 2-propenoic acid, 2-methyl-,2-hydroxy-3-[3-[1,3,3,3-tetramethyl-1-[(trimethylsilyl)oxy]disiloxanyl]propoxy]propyl ester, about 31 weight % monomethacryloxypropyl terminated mono-n-butyl terminated polydimethylsiloxane about 24 weight % N,N-dimethylacrylamide, about 6 weight % 2-hydroxyethyl methacrylate, about 1.5 weight % tetraethyleneglycoldimethacrylate, about 7 weight % polyvinylpyrrolidone, and up to about 1 weight % photoinitiator all based upon weight of all reactive components.