Patent · US Active

Perfluoroelastomers with low carbonyl endgroup ratios

US8604137B2 · kind B2 · utility

7Cited by

37References

21Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Werner M. A. Grootaert · Windom, US
Kai H. Lochhaas · Neuötting, DE

Key dates

Filing date	Feb 2, 2009
Grant date	Dec 10, 2013
Priority date	—
Expiry date	Mar 11, 2030

Classification

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

Abstract

A composition and method of making having a perfluoroelastomer gum with a nitrogen-containing cure site and an end group represented by —CF3—CF2H, —CFH2, and/or —CH3, and having a low carbonyl-containing end group ratio, which yield cured fluoroelastomers with improved retained sealing force and articles therefrom.

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