Low dielectric fluorinated poly(phenylene ether ketone) film and coating
US4902769A · kind A · utility
20Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1988 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Sep 23, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B3/42
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fluorinated poly(phenylene ether ketone) having one of the following structural formulas ##STR1## wherein X is selected from the group consisting of aryl, SO.sub.2, O, CO, --C(CH.sub.3).sub.2, and S, is prepared by reacting a bisphenol with 1,1,1,3,3,3-hexafluoro-2,2-bis[4-(4-halobenzoyl)phenyl]propane (wherein halo is fluoro or chloro), which is a novel monomer formed as the reaction product of halobenzene (wherein halo is fluoro or chloro) and 1,1,1,3,3,3-hexafluoro-2,2-bis(p-chloroformylphenyl)propane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.