Ophthalmic lens material prepared by unsaturated nitrile polyfunctional methacrylate styrenic monomer copolymerization

摘要

A resin having excellent ophthalmic lens performance was produced by radical polymerization of a mixture of bifunctional methacrylate, such as tetraethylene glycol dimethacrylate or triethylene glycol dimethacrylate, a styrenic monomer such as styrene or alpha-methylstyrene, and acrylonitrile. We provide a totally balanced resin composition suitable for an ophthalmic lens, having a high refractive index, large Abbe number, high impact strength, low specific gravity, heat resistance, cutting processability, tintability, and durability. (C) 1998 John Wiley & Sons, Inc. [References: 10]