ALIPHATIC POLYESTER COMPOSITION AND STRETCHED FILM OBTAINED FROM COMPOSITION

摘要

PURPOSE: An aliphatic polyester stretched film obtained by selectively adding a specified plasticizer to aliphatic polyester is provided which has excellent flexibility and heat resistance and manifests no bleeding of a plasticizer. CONSTITUTION: A aliphatic polyester composition comprises 10 to 60 parts by weight of at least one compound selected from (A) a compound represented by the general formula: R1OCH2CH(OR2)CH2OR3 (wherein, at least one of R1, R2 and R3 represents an acyl group having 6 to 18 carbon atoms, and remaining groups represent a hydrogen atom or an acetyl group.) and (B) a compound which is a reaction product of a condensate of 1 to 10 glycerin molecules with a carboxylic acid having 6 to 18 carbon atoms, based on 100 parts by weight of an aliphatic polyester. The stretched film has a crystallinity of 20 to 60% and a thickness of 5 to 1,000 micrometer.