Polyoxymethylene copolymers, their preparation and use

US7001959B2 · kind B2 · utility

Assignee

• Ticona LLC · US

Inventors

• Karl-Friedrich Muck · Wiesbaden, DE
• Klaus Kurz · Kelsterbach, DE
• Michael Hoffmockel · Niedernhausen, DE

Key dates

• Filing date: Nov 3, 2003
• Grant date: Feb 21, 2006
• Expiry date: Nov 3, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2/38
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Copolymers are described containing blocks of the structural repeat units of the formula I and blocks containing structural units of the formula II[—O—CH2—]x,  (I)[—O—R1—],  (II)where R1 is a divalent radical derived from a hydroxy-terminated aliphatic or cycloaliphatic oligomer or polymer which, where appropriate, has ether groups and/or carbonyloxy groups in the chain, and x is a whole number, at least 10.The copolymers may be used for producing moldings.