| abstract |
(57) [Summary] [Structure] A lactic acid-based polymer (A) containing polylactic acid as a main component, a repeating unit of a dibasic acid and a dihydric alcohol, and having a monobasic acid and / or a monohydric alcohol at the end. A lactic acid-based polymer composition comprising a sealed polyester-based plasticizer (B) having a total acid value and hydroxyl value of 40 or less as an essential component. [Effect] The present invention provides a lactic acid-based polymer composition which is useful for films, sheets, and packaging materials, is excellent in flexibility, transparency, water resistance and crazing resistance, and has no plasticizer bleed-out. it can. |