Polyetherimide copolymers
US5189115A · kind A · utility
11Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 15, 1990 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Nov 15, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L81/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel polyetherimide copolymers comprising the reaction product of 2,2-bis(3',4'-dicarboxyphenyl)propane dianhydride, an aromatic bis(ether anhydride), and a diamine are described. The polyetherimide copolymers have improved thermal properties, are soluble in conventional solvents, and are compatible with other engineering resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.