Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1991-07-11
1994-12-06
Withers, James D.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
174 2, 174 3, 428236, 428237, 428240, 428247, 428256, 428285, 428302, H02G 1300, B32B 310, B32B 502, B32B 700
Patent
active
053709217
ABSTRACT:
A lightning strike coating composition for composites. The composite is multilayered and comprises (i) a prepreg containing layer, (ii) a lightweight, highly conductive metallic wire screen or foil layer, and (iii) a sheet of lightweight carrier fabric containing (a) on one side a coating of a highly filled, thermoset resin in which the filler comprises a multimodal combination of filler particles, and (b) optionally, on the other side an adhesive joining it to layer (ii); wherein the layers are bonded to each other. Also, a process for making the multilayered composite by bonding prepreg assemblies, optionally with a honeycomb structure, to at least one layer of conductive metal screen or foil, bonding the metal screen or foil to one surface of a carrier fabric sheet that is normally not conductive, the other side of the carrier sheet is bonded to the surface coating of a highly filled, thermosettable resin in which the filler comprises a multimodal combination of filler particles, whereby to form a composite assembly, subjecting the composite assembly to sufficient heat to cure the prepregs, honeycomb structures and the surface coating to form a cured composite structure.
REFERENCES:
patent: 4186237 (1980-01-01), Propp
patent: 4421827 (1983-12-01), Phillips
patent: 4477512 (1984-10-01), Thomas et al.
patent: 4617056 (1986-10-01), Mosser et al.
patent: 4678699 (1987-07-01), Kritchersky et al.
patent: 4830908 (1989-05-01), Nakajima et al.
Skoler George A.
The Dexter Corporation
Withers James D.
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