Fluoropolymer compositions
US5317061A · kind A · utility
92Cited by
27References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1993 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Feb 24, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition which contains 35 to 85% by weight of a copolymer of tetrafluoroethylene and hexafluoropropylene (FEP), 10 to 60% by weight of a copolymer of tetrafluoroethylene and perfluoropropylvinyl ether (PFA), and 5 to 60% by weight of melt-processable polytetrafluoroethylene (PTFE). The composition is particularly suitable for use as an insulating material on a substrate such as a resistive element in a conductive polymer heating cable. The composition has good physical properties, low creep, and low secondary crystallization, and exhibits little stress-cracking when exposed to elevated temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.