Tetrafluoroethylene-perfluorovinylether copolymer
US5461129A · kind A · utility
17Cited by
0References
4Claims
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Assignee
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Key dates
| Filing date | Jul 25, 1994 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | Jul 25, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F214/262
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Tetrafluoroethylene-perfluorovinylether copolymer having a specific melt viscosity of 30.times.10.sup.4 to 200.times.10.sup.4 poises at 372.degree. C., which comprises 99% to 90% by weight of tetrafluoroethylene and 1% to 10% by weight of perfluoro(ethyl vinyl ether) can produce a film or sheet having good resistance to flex fatigue by molding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.