Fluoroelastomers having low temperature characteristics and solvent resistance

US6864336B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Harald Kaspar · Altötting, DE
• Klaus Hintzer · Woodbury, US
• Guy Van Gool · Melsele, BE
• Franz März · Altötting, DE
• Allan T. Worm · Maplewood, US
• Tatsuo Fukushi · Woodbury, US

Key dates

• Filing date: Sep 11, 2003
• Grant date: Mar 8, 2005
• Expiry date: Sep 17, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2810/30
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention is based on quad-fluoropolymer suitable for the preparation of a fluoroelastomer. The fluoropolymer comprises repeating units derived from 10 to 40 mol % of tetrafluoroethylene, 40 to 65 mol % of vinylidene fluoride, 1 to 30 mol % of a perfluorinated vinyl ether of the formula CF2═CFOCF2CF2CF2OCF3, 1 to 20 mol % of perfluoromethyl vinylether.