LACTIC ACID-BASED POLYESTER COMPOSITION AND ITS MOLDED ARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a lactic acid-based polyester composition excellent in heat resistance and impact resistance. SOLUTION: The lactic acid-based polyester composition is constituted by a lactic acid-based polyester which is mainly composed of a lactic acid unit derived from L-lactic acid or a lactic acid unit derived from D-lactic acid, and a lactic acid-based polyester copolymer which consists of a lactic acid unit derived from lactic acid having relation of optical isomerism to the lactic acid that is the source of the lactic acid unit constituting the above lactic acid-based polyester and a polyester unit. COPYRIGHT: (C)2005,JPO&NCIPI