To provide a lactic acid polymer composition excellent in transparency, heat resistance and productivity, a molded article, a sheet and a multilayer sheet each of which comprises the composition, a thermoformed article obtained by secondary-forming the sheet or the multilayer sheet, and a process for producing the thermoformed article with excellent productivity. The lactic acid polymer composition of the invention comprises 100 parts by weight of a lactic acid polymer (A), 0.1 to 3 parts by weight of an organic crystal nucleating agent (B) comprising an aliphatic carboxylic acid amide having an amide bond, and 0.1 to 7 parts by weight of a crystallization accelerator (C). The thermoformed article of the invention is obtained with excellent production efficiency by thermoforming the sheet comprising the composition of the invention at a temperature of 60 to 130°C.
提供一种透明度、耐热性和生产率均优异的
乳酸聚合物组合物,一种模塑制品,一种片材和一种多层片材,其中每种片材和多层片材均包含该组合物,一种通过二次成型该片材或多层片材而获得的热成型制品,以及一种生产该热成型制品且生产率优异的工艺。本发明的
乳酸聚合物组合物包括 100 重量份的
乳酸聚合物 (A)、0.1 至 3 重量份的有机成核剂 (B)(包括具有酰胺键的脂肪族
羧酸酰胺)和 0.1 至 7 重量份的结晶
促进剂 (C)。通过在 60 至 130°C 的温度下对含有本发明组合物的片材进行热成型,可获得本发明的热成型制品,生产效率极高。