Technological watch

Rocket booster casings made with semipreg having a thermoplastic toughened novolac-based epoxy resin matrix

A semipreg that can be cured/molded to form aerospace composite parts including rocket booster casings. The semipreg includes a fibrous layer and a resin layer located on one side of the fibrous layer. The resin layer 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.

Publication date: 29/09/2020

Number: US10787997B1 (B1)

Applicant: HEXCEL CORP?[US]


Espacenet (Worldwide)


This project has received funding from the European Union’s Horizon 2020 research and innovation programme for the Clean Sky Joint Technology Initiative under grant agreement No 887073.