Soluble and/or fusible polyimides and polyamidoimides
US5164476A · kind A · utility
1Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1990 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Jun 12, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Soluble and/or fusible polyimides or polyamidoimides of the general formula I ##STR1## in which R denotes a divalent radical of the formula II ##STR2## Ar denotes trivalent or tetravalent aromatic radicals or mixtures thereof, X denotes the amide radical, if Ar is trivalent, and if Ar is tetravalent denotes the imide radical and R.sub.1 denotes divalent aromatic radicals, and a process for their preparation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.