Fiber-reinforced composite layup
Assignee3M Innovative Properties Company
InventorLarry S. Hebert
Life of this patent
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Abstract
Fiber-reinforced composites is provided. The composites include a plurality of prepreg layers, each comprising a polymeric resin and a plurality of fibers disposed therein; and at least one electrically-conductive layer at least partially embedded in the plurality of prepreg layers. These fiber-reinforced composites can save weight relative to externally provided wires and can be provided in forms suitable for use in automated fiber placement and automated tape layup machines. Advantageous applications include uses in lightning strike protection, energy storage, signal transmission, and power distribution.
Claims15
1-13. (canceled)
A method for providing an electrical conductor in a fiber-reinforced composite comprising:
- moving an automated fiber placement head over a substrate;
- using the fiber placement head to lay down a prepreg layer extending over the substrate, the prepreg layer comprising a polymeric resin and a plurality of fibers disposed therein;
- and
- using the fiber placement head to lay down a first electrically-conductive layer in a first direction extending over the substrate, wherein the first electrically-conductive layer contacts either the substrate or the prepreg layer and the prepreg layer contacts either the substrate or the first electrically-conductive layer.
Dependencies are inferred from the claim text.