| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polylactic acid-based thermoplastic resin composition excellent in mechanical characteristics such as impact resistance, heat resistance or the like by imparting mechanical strength such as practically sufficient impact resistance to a polylactic acid resin. <P>SOLUTION: The polylactic acid-based thermoplastic resin composition comprises (A) 10 to 95 pts.wt. polylactic acid resin and (B) 5 to 90 pts.wt. rubber-containing graft copolymer obtained by carrying out graft polymerization of a rubber-like polymer having 50 to 90 wt.% gel content with a vinyl cyanide-based monomer and an aromatic vinyl-based monomer so that total content of components A and B becomes 100 pts.wt. In the resin composition, (C) a rigid copolymer obtained by copolymerizing the vinyl cyanide-based monomer with an aromatic vinyl-based monomer may further be contained and further, (D) other resin such as polyester-based resin may be formulated. The rubber content in the rubber-containing graft copolymer (B) or the rubber content in total of the rubber-containing graft copolymer (B) and the rigid copolymer (C) is 40 to 80 wt.%. <P>COPYRIGHT: (C)2012,JPO&INPIT |
