abstract |
(57) [Summary] [Object] To provide a composition which is flexible, has good moldability, and is transparent. [Structure] A polyether ester block copolymer composed of terephthalic acid, tetramethylene glycol and polyoxytetramethylene ether, to which a plasticizer and an alkali metal carboxylic acid salt that do not impair transparency in the molten state are added. |