Patent · US Active

Fluoropolymer for making a fluoroelastomer

US7560517B2 · kind B2 · utility

7Cited by

10References

14Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Klaus Hintzer · Woodbury, US
Michael Jürgens · Rheydt, DE
Harald Kaspar · Altötting, DE
Kai H. Lochhaas · Neuötting, DE
Werner Schwertfeger · Altötting, DE

Key dates

Filing date	Nov 16, 2005
Grant date	Jul 14, 2009
Priority date	—
Expiry date	Dec 2, 2026

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F214/18
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a fluoropolymer comprising repeating units derived from one or more gaseous fluorinated olefins and having one or more cure sites comprising (a) a halogen capable of participating in a peroxide cure reaction or (b) a nitrile group, said fluoropolymer further comprising repeating units derived from one or more fluorinated allyl ethers of the formula:CF2═CF—CF(Z)—O—Rf (I)wherein Z represents F or CF3 and Rf represents a fluorinated alkyl group that may contain one or more catenary oxygen atoms. The fluoropolymer can be cured to a fluoroelastomer. The invention also relates to a curable fluoroelastomer composition comprising the fluoropolymer and a curing agent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.