Fluorine-containing copolymers and films thereof
US4587316A · kind A · utility
17Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1984 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Jan 31, 2004 |
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 (I) 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 improved stress crack resistance, and flex resistance as well as good moldability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.