Novel elastomeric fluoropolymer and preparation thereof
US4766190A · kind A · utility
43Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1986 |
| Grant date | Aug 23, 1988 |
| Priority date | — |
| Expiry date | Oct 10, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2438/01
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An elastomeric fluoropolymer comprising 12 to 50% by mole of repeating units derived from a perfluorovinyl ether of the formula: EQU CF.sub.2 .dbd.CFO--(CF.sub.2 CFXO).sub.m --R.sub.f (I) wherein R.sub.f is a C.sub.1 -C.sub.6 perfluoroalkyl group, X is a fluorine atom or a trifluoromethyl group and m is an integer of 1 to 5, 50 to 88% by mole of repeating units derived from tetrafluoroethylene and 0.1 to 5% by mole of repeating units of hexafluoropropylene having improved strength and compression set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.