Thermoplastic polymides and composites therefrom
US5360671A · kind A · utility
9Cited by
20References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1993 |
| Grant date | Nov 1, 1994 |
| Priority date | — |
| Expiry date | Jan 27, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/671
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A new class polyimide and polyimide precursors based on diaryl oxyalkylene diamines, such as 1,3-bis[4-aminophenoxy]-2,2-dimethyl propane, a process for their preparation and their use as the continuous phase for the manufacture of composites and composite laminates reinforced by reinforcing agents such as carbon fibers, Kevlar.TM., and other similar high strength reinforcing agents. The polyimides and molecular composites obtained from the diamines according to the invention show thermoplastic properties, excellent flex fatigue and fracture resistance, and excellent thermal and oxidative stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.