Process for preparing unsaturated fluoroelastomers
US4742126A · kind A · utility
15Cited by
2References
3Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 20, 1987 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Jan 20, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/26
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Double bonds in saturated fluoroelastomers consisting of copolymers of vinylidene fluoride with hexafluoropropene and/or chlorotrifluoroethylene, and optionally tetrafluoroethylene, are obtained by reacting the polymer in a solution of a water-insoluble solvent in the presence of an aqueous phase, an inorganic base, and a phase-transfer catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.