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Low density lightning strike protection for use in airplanes

  • US 8,962,130 B2
  • Filed: 03/09/2007
  • Issued: 02/24/2015
  • Est. Priority Date: 03/10/2006
  • Status: Active Grant
First Claim
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1. A film for providing a desired level of lightning strike protection to a composite or metal substrate, the film comprising carbon nanoparticle yarn infiltrated with resin, wherein the carbon nanoparticles comprise carbon nanotubes, the carbon nanotubes are aligned through mechanical or chemical methods, the yarn is in the form of a braid disposed on the surface of the substrate, the maximum gap between adjacent yarns is less than about 0.120 inches (3.05 mm), and the yarn is present at a loading level that provides Zone 1A lightning strike protection.

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