Patent ID: 9428644
Filing Date: 2016-08-30
CPC Classification: C08F,C08L

Claim Text:
1. An ASA graft copolymer composition comprising: an ASA graft copolymer comprising a seed, a core and a shell; and a matrix polymer, wherein the ASA graft copolymer has a gel content higher than 85% and a swelling index lower than 8, a difference in refractive index (μD wherein the matrix polymer is at least one selected from the group consisting of polycarbonate resin, acrylonitrile-styrene copolymer, polyester resin and vinyl chloride resin, wherein a weight ratio of the ASA graft copolymer to the matrix polymer is 1:99 to 20:80, wherein the core has a thickness of 20 to 50 nm, wherein the core has a size of 230 to 350 nm, and wherein the shell of the ASA graft copolymer comprises an aromatic vinyl compound, a vinyl cyan compound and a crosslinking agent.