Patent ID: 8197723
Filing Date: 2012-06-12
Classification: C08F,C08G,G02B,Y10T

Abstract:
1. An optical device comprising a cured solid hybrid polymer comprising the reaction product of about 70% by weight of a photocurable and/or thermally curable resin comprising (meth)acrylate or siloxane monomers, at least 50% of which includes at least one cycloaliphatic group; an initiator in an amount of between about 0.1 and 2.5% by weight; about 15% by weight of a hydroxyoxetane; and about 15% by weight of a diglycidyl ether based on the final cured solid hybrid polymer, wherein the optical device has a refractive index of 1.48 or more, an Abbe number of 45 or more, a low cure shrinkage of less than about 3%, and a high fracture toughness.