| 摘要 |
PROBLEM TO BE SOLVED: To provide a biodegradable polylactic acid resin molded product not deformed because of sufficient heat resistance even after allowed to temporarily stand in a high temperature environment like the compartment of a car at daytime in summer to be heated to a high temperature, not damaging capacities required in respective members, finally decomposed by microorgbanisms even if allowed to stand in the natural world, having no occurring possibility of an environmental problem and also excellent in releasability in injection molding, and its manufacturing method. SOLUTION: This manufacturing method for the polylactic acid resin molded product includes a precess for adjusting the temperature of a mold to the range of the peak value±30°C of the crystallizing temperature of a polylactic acid resin composition measured by falling temperature measurement using a differential scanning calorimeter, a process for injecting the polylactic acid resin composition containing a release agent in the mold adjusted in temperature and a process for crystallizing the polylactic acid resin composition, which is injected in the mold, to mold the same. COPYRIGHT: (C)2005,JPO&NCIPI |
