Disubstituted meta-terphenyl compounds and resulting polymers
US4147728A · kind A · utility
3Cited by
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4Claims
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Key dates
| Filing date | Dec 18, 1974 |
| Grant date | Apr 3, 1979 |
| Priority date | — |
| Expiry date | Dec 18, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C49/86
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
New tetracarbonyl compounds of the formulae: ##STR1## where R is a hydrogen atom, an alkyl radical or an aryl radical. The invention also contemplates the thermostable polymers obtained by reacting an aromatic tetra-amine with at least one of the above tetracarbonyl compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.