Aromatic polyimide resin composition
US4247443A · kind A · utility
8Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1979 |
| Grant date | Jan 27, 1981 |
| Priority date | — |
| Expiry date | Aug 16, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2379/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An aromatic polyimide resin composition useful for producing a film or sheet, comprises 2% by weight or more of an imide polymer having at least 90 molar % of a recurring unit of the formula (I): ##STR1## wherein R' is a divalent aromatic radical, and dissolved in an organic polar solvent consisting essentially of one or more halogenated phenol compounds of the formulae (II) or (III): ##STR2## wherein R.sup.2 is a hydrogen atom of a C.sub.1-3 alkyl radical and is a halogen atom, the halogenated phenol compound having a melting point of 100.degree. C. or less and a boiling point of 300.degree. C. or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.