Polycyclic polyimides and compositions and methods relating thereto
US7691471B2 · kind B2 · utility
0Cited by
6References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 26, 2009 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Jun 26, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31721
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to the use polycyclic diamines. These diamines, when polymerized with dianhydrides, and optionally other non-polycyclic diamines are used to form new polyamic acids. The polyamic acids can be imidized to form a new class of useful polyimide resins and polyimide films, particularly in electronics type applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.