Polyamide acid, process for producing same and polyimide obtained therefrom
US4454310A · kind A · utility
18Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1982 |
| Grant date | Jun 12, 1984 |
| Priority date | — |
| Expiry date | Dec 15, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyamide acid obtained by reacting 2,3,5-tricarboxycyclopentane-acetic acid and a diamine in a solvent has a high stability in the form of a solution, has a high workability and is excellent in storage stability. Polyimide obtained by heating said polyamide acid is excellent in heat resistance, mechanical properties, electrical properties and chemical resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.