Patent ID: 9527994
Filing Date: 2016-12-27
CPC Classification: B29K,C08F,C08L

Claim Text:
1. A resin modifier, comprising: a block copolymer (B) comprising from 10 to 60 mass % of a methyl methacrylate polymer block (a) and from 90 to 40 mass % of an acrylate polymer block (b), wherein the acrylate polymer block (b) comprises from 50 to 90 mass % of an alkyl acrylate and from 50 to 10 mass % of an aromatic (meth)acrylate, and the alkyl acrylate is at least one selected from the group consisting of n-butyl acrylate and 2-ethylhexyl acrylate, and wherein the block copolymer (B) has a refractive index of from 1.485 to 1.495, wherein the methyl methacrylate polymer block (a) has a refractive index ranging from 1.485 to 1.495 and the acry late polymer block (b) has a refractive index ranging from 1.485 to 1.495.