| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an aliphatic polyester resin composition to which a crystallizing effect and a plasticizing effect are imparted, which can be processed into a molded product and fiber, and with which the molded product and fiber excellent in mechanical properties can be obtained. <P>SOLUTION: A branched polylactic acid has in one molecule, at least two branched chains, each consisting of polylactic acid. The aliphatic polyester resin composition is configured by adding 1 to 30 pts.wt of the branched polylactic acid as an additive for crystallization promotion and plasticity improvement to 100 pts.wt of 3-hydroxyalkanoate polymer such as poly(3-hydroxybutyrate-co-3-hydroxyhexanoate), poly(3-hydroxybutyrate-co-3-hydroxyvalerate), and poly(3-hydroxybutyrate). <P>COPYRIGHT: (C)2013,JPO&INPIT |
