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US 5,288,547 AGranted
Toughened resins and composites
AssigneeThe British Petroleum Company p.l.c.
InventorsDavid A. Elmes, Marie A. Mullier
Life of this patent
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Abstract
A process for the preparation of a composite comprising reinforcing fibres embedded in a thermosetting resin matrix, the process comprising taking said fibres impregnated with said resin and curing said resin characterized in that a porous membrane film of thermoplastic material is placed between at least two layers of fibres prior to curing.
Claims6
A process for the preparation of a composite comprising reinforcing fibres embedded in a thermosetting resin matrix, said process comprising taking said fibres impregnated with said resin and curing said resin;
- characterized in that a porous membrane film of thermoplastic material selected from polyesters, polyamides, polyaramids, polyarylates, polycarbonates, poly(ester-carbonates), polybenzimidazoles, polyimides, polyetherimides, polyetherketones, polyarylene ethers, polysulphones and polyamideimides is placed between at least two layers of fibres prior to curing.
Dependencies are inferred from the claim text.