Patent ID: 7799844
Filing Date: 2010-09-21
Classification: C08F,G02B

Abstract:
1. An optical material cured by exposing an active energy beam-curable composition for optical material to an active energy beam, the composition consisting of unsaturated group-containing monomers and optionally one or more components selected from the group consisting of a photoinitiator, pigment, dye, an antifoaming agent, a leveling agent, an inorganic filler, an organic filler, a light stabilizer, an oxidation inhibitor, an ultraviolet absorbing agent, a polymerization inhibitor, and a thermal polymerization initiator, the unsaturated group-containing monomers consisting of (a) (A) a di(meth)acrylate represented by the following formula (1) (component (A)) and (B) a mono(meth)acrylate represented by the following formula (2) (component (B)); or (b) the component of (A), the component (B), and (D) an unsaturated group-containing monomer other than the components (A) and (B), wherein (D) the unsaturated group-containing monomer other than the components (A) and (B) is a compound selected from the group consisting of phenoxyethyl (meth)acrylate, carbitol (meth)acrylate, N-vinyl caprolacton, acryloyl morpholine, glycidyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 1,4-butanediol mono(meth)acrylate, 1,6-hexanediol di(meth)acrylate, nonanediol diacrylate, polyethylene glycol di(meth)acrylate, 2-hydroxy-3-phenyloxypropyl (meth)acrylate, tribromophenyl (meth)acrylate, 2,2-bis(4-(meth)acryloyloxyethoxyphenyl-propane, 2,2-bis(4-(meth) acryloyloxydiethoxyphenyl)-propane, 2,2-bis(4-(meth)acryloyloxytriethoxyphenyl)-propane, ethylene glycol di(meth)acrylate, tribromophenyloxyethl (meth)acrylate, trimethylolpropane tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, bisphenol A epoxy resin di(meth)acrylate, polyurethane poly(meth)acrylate and polyester poly(meth)acrylate; wherein the composition contains 10 to 90 wt % of the component (A) and 90 to 10 wt % the component (B) on the basis of the total weight of the components (A) and (B): wherein R wherein R