| 摘要 |
PROBLEM TO BE SOLVED: To provide a polylactic acid-containing thermoplastic resin composition which has good heat resistance, good rigidity, high impact resistance, and excellent molding stability. SOLUTION: The thermoplastic resin composition comprising 50 to 95 wt.% of polylactic acid (A) and 50 to 5 wt.% of a block copolymer (B) of a crystalline aromatic polyester (b1) with an aliphatic polyester (b2) is characterized in that the Vicat softening point of the block copolymer (B) is 150 to 200°C, and the specific gravity of the block copolymer (B) is 1.20 to 1.28. COPYRIGHT: (C)2008,JPO&INPIT
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