| 摘要 |
PROBLEM TO BE SOLVED: To provide a polylactate film having biodegradability, excellent flexibility, excellent film forming properties attained by the inhibition of plasticizer bleed-out, and has a suitable heat seal elongation. SOLUTION: The method for producing the polylactate film comprises mixing polylactic acid with a biodegradable aliphatic/aromatic copolyester of a glass transition temperature of 0°C or lower in such a mixing ratio that (the polylactic acid)/(the biodegradable aliphatic/aromatic copolyester) is in the range of 40/60 to 10/90 (by mass%), compounding 100 pts. mass (in total) polylactic acid and biodegradable aliphatic/aromatic copolyester with 0.5 to 15 pts. mass plasticizer and 1-40 pts. mass inorganic filler to form a resin composition, melting the resin composition by heating, and forming the melt into a film by inflation. COPYRIGHT: (C)2005,JPO&NCIPI
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