Fluorine-containing copolymer
US4703095A · kind A · utility
10Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1986 |
| Grant date | Oct 27, 1987 |
| Priority date | — |
| Expiry date | Feb 14, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F214/262
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A fluorine-containing copolymer comprising monomeric units of: PA0 (a) tetrafluoroethylene, PA0 (b) 8 to 15% by weight of hexafluoropropene on the basis of the weight of the copolymer, and PA0 (c) 0.2 to 2% by weight of a fluoroalkyl vinyl ether of the formula: EQU CF.sub.2 .dbd.CF--O--(CF.sub.2).sub.n --CF.sub.2 X PA0 wherein X is hydrogen or fluorine, and n is an integer of 3 to 9, on the basis of the weight of the copolymer, which has good moldability and improved stress crack resistance and flex resistance when formed as an article such as a film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.