| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rubber-reinforced thermoplastic resin composition excellent in the physical property balance of color development, scratch resistance, impact resistance and fluidity. <P>SOLUTION: The rubber-reinforced thermoplastic resin composition has a disperse phase constituted of a graft copolymer (A) obtained by graft copolymerizing at least one monomer (b) selected from the group consisting of an aromatic vinylic monomer, a (meth)acrylate esteric monomer and another copolymerizable monomer in the presence of a rubbery polymer (a), and a continuous phase constituted of a copolymer (B) obtained by copolymerizing at least one monomer (b) selected from the group consisting of an aromatic vinylic monomer, a cyanated vinylic monomer, and another copolymerizable monomer, wherein the rubbery polymer (a) has weight fractions in which particles having a particle diameter of ≥0.05 μm and <0.2 μm account 50 to 90 wt.%, and particles having a particle diameter of ≥0.2 μm account 10 to 50 wt.%; the graft ratio of the graft copolymer (A) is 70 to 150%; and 100 pts.wt. of the resin composition contains 5 to 24 pts.wt. of the rubbery polymer (a). <P>COPYRIGHT: (C)2013,JPO&INPIT |
