The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2005
Filed:
Sep. 11, 2003
Harald Kaspar, Burgkirchen, DE;
Klaus Hintzer, Kastl, DE;
Guy Van Gool, Melsele, BE;
Franz März, Burgkirchen, DE;
Allan T. Worm, North St. Paul, MN (US);
Tatsuo Fukushi, Woodbury, MN (US);
Harald Kaspar, Burgkirchen, DE;
Klaus Hintzer, Kastl, DE;
Guy van Gool, Melsele, BE;
Franz März, Burgkirchen, DE;
Allan T. Worm, North St. Paul, MN (US);
Tatsuo Fukushi, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
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 CF═CFOCFCFCFOCF, 1 to 20 mol % of perfluoromethyl vinylether.