Patent ID: 6335079
Filing Date: 2002-01-01
Classification: C08L,G02B,Y10T

Abstract:
An ionizing radiation curable resin composition for a Fresnel lens, comprising the following components (A) to (D), said radiation curable resin composition providing, upon curing, a cured product having a refractive index of not less than 1.55:(A) a bisphenol A epoxy(meth)acrylate represented by chemical formula 1â€ƒwherein R represents H or CH3 and n is an integer of 1 or more; (B) a monofunctional (meth)acrylate; (C) a bifunctional (meth)acrylate; and (D) a polymer selected from the group consisting of a polymethyl methacrylate, a polyester polyurethane resin having a weight average molecular weight of 10,000 to 300,000, and a mixture thereof.