| 摘要 |
PROBLEM TO BE SOLVED: To provide a new copolyoxymethylenes and a method for producing the same, and to provide specifically a method for producing any type of moldings from the same. SOLUTION: The copolymer comprises a polyoxymethylene block having a structural repeating unit expressed by formula I and a block comprising a structural unit expressed by formula II, wherein R<SP>1</SP>is a divalent group derived from a hydroxy-terminated aliphatic or alicyclic oligomer or polymer, has an ether group and/or a carbonyloxy group in the chain in some cases, and x is a natural number of at least 10. COPYRIGHT: (C)2004,JPO
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