作者: Fumio Matsuoka , 正巳 岡本 , Kazunobu Yamada , Takuma Yano , 文夫 松岡
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摘要: (57) [Problem] To provide a biodegradable resin film excellent in mechanical strength and heat resistance. SOLUTION: A polyester containing 50 parts by mass or more of polylactic acid, layered silicate which primary to tertiary amine salt, quaternary ammonium salt phosphonium is ion-bonded between layers, boiling point 250 less. Biodegradation comprising at least one compound selected from the group consisting polyalkylene oxides having number average molecular weight 200 50,000 higher, aliphatic polyesters, polyhydric alcohol esters, polycarboxylic acid esters 50,000. Resin film.