Toughened thermosetting structural materials
US5120823A · kind A · utility
8Cited by
12References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 3, 1991 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Apr 3, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31721
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Toughened bismaleimide resin systems capable of preparing carbon fiber reinforced composites having compression after impact strengths of greater than 40 Ksi are prepared from bismaleimide matrix resin systems containing a member of a limited set of soluble thermoplastic polyimides in particulate form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.