Composite material with thermoplastic toughened novolac-based epoxy resin matrix
US10465052B2 · kind B2 · utility
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Key dates
| Filing date | Sep 19, 2018 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Sep 19, 2038 |
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.