Patent ID: 8951643
Filing Date: 2015-02-10
Classification: C08J,C08L,G02B,G02F,Y10S,Y10T

Abstract:
1. An optical film comprising: an acrylic resin, and a core-shell graft copolymer wherein the core comprises a conjugate diene rubber, and the shell is a copolymer comprising an acrylic monomer, an aromatic vinyl monomer, and a maleimide monomer, wherein the acrylic resin is a copolymer of an acrylic monomer, an aromatic vinyl monomer, and an acid anhydride, and a weight ratio of each monomer is 60-98:1-45:1-15, wherein the copolymer of the acrylic resin comprises a maleimide monomer as an additional comonomer in an amount of about 5 parts or less by weight based on 100 parts by weight of the copolymer of the acrylic resin, wherein a weight ratio of each monomer of the copolymer of the shell, respectively the acrylic monomer, the aromatic vinyl monomer, and the maleimide monomer is 38-88:1-30:1-10, and wherein the core-shell graft copolymer has a weight average molecular weight of about 80,000 to about 200,000.