| 摘要 |
Disclosed is a polyglycol acid resin composition which has excellent moldability and exhibits good barrier properties and transparency after molding. A molded body of the polyglycol acid resin composition is also disclosed. The resin composition is obtained by blending a polylactic acid having a mass average molecular weight Mw of 100,000-1,000,000 into a polyglycol acid having a mass average molecular weight Mw of 100,000-1,000,000 so that the polylactic acid content is within the range of 5-30% by mass, and then melt-mixing the blend, for example, at a temperature of 230-270°C so that the temperature lowering crystallization peak temperature Tc of the resulting resin composition as measured by differential scanning calorimetry is lower than that of the polyglycol acid by itself by 3-18°C. |
