| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a polylactic acid-based molded object, which has a polylactic acid stereocomplex structure, is crystallized and transparent at the same time, keeps transparency even after being heat-treated, and does not increase in haze value. <P>SOLUTION: In the molding method of the transparent and heat-resistant molded object by injection-molding a polylactic acid-based composition at a cylinder temperature of a melting point≤+20°C, the composition includes poly-L-lactic acid and poly-D-lactic acid, and has a peak ratio (peak 1/peak 2) of≤0.2 of maximum endothermic peak (peak 1) in the range of 150-200°C to maximum endothermic peak (peak 2) in the range of 205-240°C in DSC measurement. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
