Polyimides
US4315077A · kind A · utility
26Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 1981 |
| Grant date | Feb 9, 1982 |
| Priority date | — |
| Expiry date | May 27, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2379/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Terpolyimides prepared from tetracarboxylic acid esters and combinations of heterocyclic, aromatic, and aliphatic diamines and artifacts composed of those terpolymers. Precursors, and methods of converting them to the corresponding terpolymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.