Composite material with thermoplastic toughened novolac-based epoxy resin matrix
US10106661B2 · kind B2 · utility
2Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2017 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Jun 14, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2481/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Pre-impregnated composite material (prepreg) that can be cured/molded to form aerospace composite parts. The prepreg includes carbon reinforcing fibers and an uncured resin matrix. The resin matrix includes an epoxy component that is a combination of a hydrocarbon epoxy novolac resin and a trifunctional epoxy resin and optionally a tetrafunctional epoxy resin. The resin matrix includes polyethersulfone as a toughening agent and a thermoplastic particle component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.