| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a novel refuse sack which is soft, easily handleable and excellent in degradability in the natural environment or in a compost and contributing to environmental protection. SOLUTION: This sack contains at least 50 wt.% fiber or film produced from a polymer composition being at least one composition selected from the group consisting of a mixture of a crystalline polylactic acid having a melting point of 150 deg.C or above with an aliphatic polyester based on a linear diol and an aliphatic dicarboxylic acid and having a melting point of 140 deg.C or below, a block copolymer of a polylactic acid with an aliphatic polyester and a mixture of a polylactic acid and/or an aliphatic polyester with a block copolymer and having a content of a lactic-acid-derived component of 50-99 wt.% and a content of an aliphatic polyester-derived component of 1-50 wt.%.</p> |
