Formation manner of the poly lactic acid resin constituent which features that it iterates

摘要

PROBLEM TO BE SOLVED: To provide a method of molding a polylactic acid resin composition having an excellent heat resistance and its molding.;SOLUTION: The method of molding the polylactic acid resin composition including the step of repeating quick heating and quick cooling of the surface of a mold cavity comprises the steps of feeding a polylactic acid resin composition improved in crystallization speed into the cavity with a surface temperature of 90-140°C, holding the state for 5-60 seconds for crystallization, quickly cooling the cavity surface to 40-80°C, holding the state for 5-30 seconds and taking out the molding. The polylactic acid resin composition molding is obtained by this molding method and has a heat resistance temperature of ≥110°C.;COPYRIGHT: (C)2006,JPO&NCIPI