| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a molding of a polylactic acid resin composition of which shrinkage by heating is significantly suppressed and also heat resistance, a weak point of a polylactic acid resin, is significantly improved. <P>SOLUTION: The method for producing the molding of the polylactic acid resin composition is provided, which includes (1) a step of obtaining a composition including a polylactic acid resin and a liquid crystal polymer by blending 7-50 pts.wt. of the liquid crystal polymer relative to 100 pts.wt. of the polylactic acid resin with the polylactic acid resin and performing melt kneading at a temperature of 170-250°C, (2) a step of obtaining a molding by performing melt processing of the composition obtained in the step (1), and (3) a step of performing heat processing of the molding obtained in the step (2) at a temperature of 102-140°C for 5-55 minutes. <P>COPYRIGHT: (C)2012,JPO&INPIT |
