Bisphenyl-2,3,5,6-tetrafluoro-4-trifluoromethylphenyl phosphine oxide derivative and synthesis thereof
US7169879B2 · kind B2 · utility
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3Claims
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Key dates
| Filing date | Dec 17, 2004 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Mar 17, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/5537
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to bisphenyl-2,3,5,6-tetrafluoro-4-trifluoromethylphenylphosphine oxide compounds and synthesis thereof, more particularly to novel bisphenyl-2,3,5,6-tetrafluoro-4-trifluoromethylphenylphosphine oxide compounds having both a perfluorinated benzene substituent and a phosphine oxide moiety. Compounds of the invention can be useful as a monomer for preparing polyimides having a low dielectric constant and a superior adhesion while maintaining the superior thermal and mechanical properties of polyimides themselves, and their synthesis thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.