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Solventless methods of coating a carbon nanotube network and carbon nanotube networks coated with a polymer

  • US 9,732,238 B2
  • Filed: 05/14/2010
  • Issued: 08/15/2017
  • Est. Priority Date: 05/14/2009
  • Status: Active Grant
First Claim
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1. A method of making a layered carbon nanotube (CNT) composite, comprising:

  • providing a CNT layer that is disposed on a substrate, andapplying a solventless polymer precursor directly onto the CNT layer to form a coating over the CNT layer having a thickness of at least 0.250 μ

    m;

    wherein the solventless polymer precursor consists essentially of polyols and isocyanates and comprising a step of curing to form a polyurethane polymer;

    and wherein the step of applying results in a CNT layer that comprises 50 mass % or less of the polymer in the CNT layer;

    wherein the underlying CNT layer has a sheet resistance of 120 Ω

    /square or less.

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