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AssigneeE. I. Du Pont de Nemours and Company
InventorsWarren Francis Knoff, Mikhail R. Levit, Llewellyn Bentley Richardson, III
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This invention pertains to a structural core comprising a nonwoven fibrous reinforcement web of carbon nanotubes, the web being coated with a thermoset or thermoplastic resin wherein the carbon nanotubes are oriented within the reinforcement web such that, after resin coating, the ratio of modulus in the plane of the web in a first direction to the modulus in a second direction orthogonal to the first direction is no greater than 2.0; the in-plane Young's modulus of the resin coated web is at least 14 GPa and the coating resin comprises from 15 to 75 weight percent of the weight of web plus resin.
A structural core comprising a nonwoven fibrous reinforcement web of carbon nanotubes, the web being coated with a thermoset or thermoplastic resin wherein:
A structural core comprising a nonwoven fibrous multi-layer reinforcement web coated with a thermoset or thermoplastic resin wherein:
A composite panel comprising a core structure according to any one of the preceeding claims and at least one facesheet attached to at least one exterior surface of the core structure.
Dependencies are inferred from the claim text.