Patent ID: 6849689

Claim:
A rubber-reinforced thermoplastic resin comprising a copolymer resin (A1) obtained by polymerizing a vinyl monomer (b1) in the presence of an acrylic rubber-like polymer (a), or a mixture of said copolymer resin (A1) and a (co)polymer (A2) of a vinyl monomer (b2), said acrylic rubber-like polymer (a) comprising 55 to 98% by weight of acrylic rubber-like polymer particles (a1) which have a particle size of less than 350 nm and 2 to 45% by weight of acrylic rubber-like polymer particles (a2) which have a particle size of not less than 350 nm, wherein the content of said acrylic rubber-like polymer (a) is 5 to 80% by weight based on said rubber-reinforced thermoplastic resin; and the graft ratio of said copolymer resin (A1) is 68 to 200%.