Patent ID: 6891010
Filing Date: 2005-05-10
Classification: C08F,C08G,G02B

Abstract:
1. A hydrogel that is the hydrated polymerization product of a monomer mixture comprising a hydrophilic monomer, and a monomer of the formula: wherein: each R is independently an alkylene group having 1 to 10 carbon atoms which may have ether linkages between carbon atoms; each R′ is independently a monovalent hydrocarbon radical or a halogen substituted monovalent hydrocarbon radical having 1 to 18 carbon atoms which may have ether linkages between carbon atoms; each R w and x are each ≧0; y is ≧1; w+x+y=2 to 1000; and R wherein said hydrogel has an oxygen permeability of at least about 120 Barrers, a water content of at least about 20 weight percent, and a modulus no greater than about 97 g/mm