Thermoprocessable copolymers of tetrafluoroethylene
US5463006A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1994 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | Jul 1, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B13/148
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to new thermoprocessable tetrafluoroethylene copolymers particularly suitable for coating electric cables by melt extrusion. These copolymers consist of: (a) from 0.5 to 13% by weight of perfluoromethylvinylether; PA1 (b) from 0.05 to 3% by weight of one or more monomers selected in particular classes of linear perfluoroalkylvinylethers containing one or more ether oxygen atoms, of perfluorovinylethers containing a cycle having 6 atoms and having one or more ether oxygen atoms, and of alphafluoroalkylethylenes; PA1 (c) tetrafluoroethylene, in such an amount that the sum of the percentages of the various monomers is equal to 100% by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.