Thermoplastic polyimide and imide oligomer
US7662903B2 · kind B2 · utility
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3References
11Claims
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Key dates
| Filing date | Sep 18, 2003 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Dec 13, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/1071
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A thermoplastic polyimide having good processing characteristics, obtainable by polymerizing an acid component and a diamine component, wherein an aromatic tetracarboxylic acid dianhydride represented by formula (I):or its derivative is used at least as a part of the acid component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.