| abstract |
The present invention provides a polyglycolic acid-based resin composition excellent in moldability and having good barrier properties and transparency after molding, and a molded product thereof. SOLUTION: Polyglycolic acid having a mass average molecular weight Mw of 100,000 to 1,000,000 is mixed with polylactic acid having a mass average molecular weight Mw of 100,000 to 1,000,000 so that the polylactic acid content is 5 to 30% by mass. For example, a resin composition having a temperature-falling crystallization peak temperature Tc measured by a differential scanning calorimetry method of 3 to 18 ° C. lower than the value of polyglycolic acid alone is melt-kneaded under a temperature condition of 230 to 270 ° C. To do. [Selection figure] None |