| 摘要 |
PROBLEM TO BE SOLVED: To provide a polylactic acid-based resin composition affording a molded product having excellent heat resistance and impact strength with good moldability, to provide a heat-resistant polylactic acid-based resin molded product composed of the polylactic acid-based resin composition and to provide a method for producing the polylactic acid-based resin molded product. SOLUTION: The polylactic acid-based resin composition is obtained by compounding a polylactic acid with a dibasic acid bis(benzoic acid hydrazide) compound represented by general formula (I) (wherein, R represents a 1-12C alkylene group, an alkenylene group, a cycloalkylene group or an alkylene group having an ether bond; R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>and R<SP>4</SP>represent each a hydrogen atom, a halogen atom, a 1-12C alkyl group, a cycloalkyl group, an aryl group, an arylalkyl group or an alkylaryl group or R<SP>1</SP>and R<SP>2</SP>and/or R<SP>3</SP>and R<SP>4</SP>are bound to form a 5- to an 8-membered ring). The method for producing the heat-resistant polylactic acid-based resin molded product comprises melting the polylactic acid-based resin composition, filling a metal mold of a molding machine set within the range of not higher than the crystallization starting temperature to not lower than the glass transition temperature with the molten polylactic acid-based resin composition and molding the composition while crystallizing the composition. COPYRIGHT: (C)2008,JPO&INPIT |
