| 摘要 |
PROBLEM TO BE SOLVED: To provide a transparent biodegradable resin composition, very high in toughness and in impact resistance. SOLUTION: The copolymer is a block copolymer comprising (A) a polylactic segment, (B) an aromatic polyester segment, and (C) a polyalkylene ether segment, linked with each other, wherein the weight ratio (A/B+C) is 99/1-50/50. A method for manufacturing such a polylactic copolymer is also provided.
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