Imido/siloxane bismaleimide/aromatic diamine prepolymers
US5122589A · kind A · utility
1Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1990 |
| Grant date | Jun 16, 1992 |
| Priority date | — |
| Expiry date | Apr 10, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2379/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel low melt viscosity imido prepolymers, well adapted for the production of prepregs and filament wound shaped articles, are prepared by copolymerizing (a) at least one N,N'-bismaleimide with (b) at least one siloxane bismaleimide, (c) at least one aromatic diprimary diamine, (d) optionally, at least one olefinically unsaturated comonomer other than a bisimide, (e) optionally, a catalyst, and (f) either an acrylate or an unhalogenated epoxy resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.