Patent ID: 8653200
Filing Date: 2014-02-18
Classification: C08F,C08J,C08L,C09K,G02B,G02F,Y10T

Abstract:
1. An optical resin composition comprising: (A) a first acrylate derivative that is a compound having one polymerizable unsaturated bond in its molecule and consists of a mixture of an alkyl acrylate having an alkyl group containing 4 to 18 carbon atoms (referred to hereinafter as AA monomer) and a hydroxyl-containing acrylate represented by the following general formula (I) (referred to hereinafter as HA monomer): wherein m is 2, 3 or 4, and n is an integer of 1 to 10, (B) a second acrylate derivative that is a polyurethane di(meth)acrylate compound having two or more polymerizable unsaturated bonds in its molecule, and (C) an acrylate derivative polymer that is a copolymer obtained by polymerizing AA monomer with HA monomer, wherein the HA monomer is incorporated such that the proportion (M % by mass) of HA monomer in (A) the first acrylate derivative and the proportion (P % by mass) of HA monomer in (C) the acrylate derivative polymer satisfy the following relationship: