Polyacetal copolymer and composition thereof
AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsTadashige Hata, Kazuhiko Matsuzaki
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Abstract
The present invention relates to a polyacetal copolymer comprising a polyoxymethylene group (A) and a vinyl polymer group (B), the copolymer having a structure of the formula (I): A.sub.n --X--B (I) wherein X is a terminal group of B and represents a binding group derived from a compound having at least two carbon atoms and 1 to 4 groups selected from hydroxyl, carboxyl, ester, amino and alkoxy groups, and A.sub.n means that A is present in the quantity of n times in number, and bonds to X, in which n=1 to 4, and the copolymers has a number average molecular weight of 10,000 to 500,000; a process for the production of said copolymer; and a composition comprising said copolymer and a polyvinyl polymer and/or polyoxymethylene.
Claims7
A polyacetal copolymer having a number average molecular weight of 10,000 to 500,000 of the formula ##STR99## wherein R.sub.1 is hydrogen or alkyl;
- R.sub.2 is phenyl, cyano, chloro, acetyl or alkyl ester;
- l is 10 to 5,000;
- A is polyoxymethylene;
- D is ##STR100## Y is oxygen or sulfur;
- and a is 0 to 3.
Dependencies are inferred from the claim text.