Polyimide copolymer precursors
US5202412A · kind A · utility
21Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1990 |
| Grant date | Apr 13, 1993 |
| Priority date | — |
| Expiry date | Oct 2, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Soluble polymeric precursors having oligomeric imide and amic acid segments, which are suitable to form segmented, preferably insoluble, polyimide copolymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.