A method for producing a polylactic acid resin composition, including the following steps (1) and (2): step (1): subjecting an organic crystal nucleating agent to a wet pulverization in the presence of a carboxylic acid ester having a weight-average molecular weight of from 150 to 600 and a viscosity at 23°C of from 1 to 500 mPa•s and/or a phosphoric ester having a weight-average molecular weight of from 150 to 600 and a viscosity at 23°C of from 1 to 500 mPa•s to give a finely pulverized organic crystal nucleating agent composition; and step (2): melt-kneading a raw material for a polylactic acid resin composition comprising the finely pulverized organic crystal nucleating agent composition obtained in the step (1) and a polylactic acid resin. The polylactic acid resin composition obtainable by the method of the present invention can be suitably used in various industrial applications, such as daily sundries, household electric appliance parts, packaging materials for household electric appliance parts, and automobile parts.
一种生产聚
乳酸树脂组合物的方法,包括以下步骤(1)和(2): 步骤(1)在重量平均分子量为 150 至 600、23°C 时粘度为 1 至 500 mPa-s 的
羧酸酯和/或重量平均分子量为 150 至 600、23°C 时粘度为 1 至 500 mPa-s 的
磷酸酯存在下,对有机晶核剂进行湿法粉碎,得到细粉碎的有机晶核剂组合物;以及 步骤(2):熔融捏合聚
乳酸树脂组合物的原料,该原料包括在步骤(1)中得到的细粉碎有机晶核剂组合物和聚
乳酸树脂。通过本发明的方法得到的聚
乳酸树脂组合物可适用于各种工业应用,例如日用杂 品、家用电器零件、家用电器零件包装材料和汽车零件。