| 摘要 |
PROBLEM TO BE SOLVED: To provide a polylactic acid resin composition without remarkably damaging transparency, having a high meltdown tension and suitable for film formation by an inflation method, having a high freedom for setting conditions such as a thickness, width, etc., further without decreasing its molecular weight after the inflation-forming and excellent in hydrolysis resistance. SOLUTION: This polylactic acid-based composition is obtained by heating (A) 100 pts.wt. polylactic acid and (B) 0.001-1 pt.wt. epoxy group-containing acrylic polymer having 200-1,000 g/eq epoxy equivalent and 5,000-100,000 weight-average molecular weight (Mw). Also, the resin composition has≥0.1 g melt tension measured at 190°C. Further, the resin composition shows≥20 m/min melt elongation at 190°C. COPYRIGHT: (C)2006,JPO&NCIPI
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