| 摘要 |
PROBLEM TO BE SOLVED: To provide foamed moldings utilizing heat resistance and hydrolysis resistance of a stereo complex polylactic acid. SOLUTION: Foamed moldings comprise a polylactic acid (A component) comprising polylactic acid unit (A-1 component) and a polylactic acid unit (A-4 component), wherein the polylactic acid unit (A-1 component) comprises 90-100 mol% (A-1) L-lactic acid unit and 0-10 mol% D-lactic acid unit and/or a copolymer component unit other than lactic acid, the polylactic acid unit (A-4 component) comprises 90-100 mol% (A-4) D-lactic acid unit and 0-10 mol% L-lactic acid unit and/or a copolymer component unit other than lactic acid and the weight ratio of A-1 component to A-4 component (A-1 component/A-4 component) is within a range of from 10/90 to 90/10. COPYRIGHT: (C)2007,JPO&INPIT
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