Process for producing fluorine-containing elastic copolymer
US4920170A · kind A · utility
13Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1988 |
| Grant date | Apr 24, 1990 |
| Priority date | — |
| Expiry date | Jun 28, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F216/1408
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A fluorine-containing elastic copolymer with distinguished low temperature characteristics, comprising (a) about 30 to about 80% by mole of tetrafluoroethylene, (b) about 5 to about 60% by mole of perfluoro(lower alkyl vinyl ether) and (c) a perfluoroether compound represented by following general formula: EQU CF.sub.2 .dbd.CFOCF.sub.2 CFXORf wherein X: F or --CF.sub.3 and Rf: --CnF.sub.2n+1, is obtained by copolymerizing the (a) component, the (b) component and the (c) component in the presence of a radical polymerization initiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.