| 摘要 |
PROBLEM TO BE SOLVED: To obtain a thermoplastic resin composition that has excellent heat resistance and impact resistance and comprises a polylactic acid-based polymer. SOLUTION: The polylactic acid-based polymer thermoplastic resin composition comprises a polylactic acid-based polymer (A), an aromatic alkenyl-containing polymer (B) and a rubber-like polymer (C) in the composition ratio (mass ratio) of the polylactic acid-based polymer (A) to the alkenyl-containing polymer (B) of 1/99-99/1. A copolymer of a monomer containing an aromatic group and a copolymerizable vinyl group and another monomer is used as the polymer (B). A graft copolymer obtained by grafting a vinyl-based monomer onto a rubber component or a thermoplastic elastomer is used as the rubber-like polymer (C). COPYRIGHT: (C)2006,JPO&NCIPI
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