Fiber materials preimpregnated with duromeric polyimide resins and process for their preparation
US4356227A · kind A · utility
11Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1980 |
| Grant date | Oct 26, 1982 |
| Priority date | — |
| Expiry date | Oct 31, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2992
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A preimpregnated fibrous structural material is provided comprising a heat curable imide resin produced by reaction between an N,N'-bisimide of an unsaturated di-carboxylic acid and a hydrazide of an amino acid, and fibrous materials selected from the group consisting of carbon fibers, glass fibers and aromatic polyamide fibers impregnated with said imide resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.