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Compositions for compounding, extrusion, and melt processing of foamable and cellular polymers

  • US 10,031,301 B2
  • Filed: 10/03/2016
  • Issued: 07/24/2018
  • Est. Priority Date: 11/07/2014
  • Status: Active Grant
First Claim
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1. A communications cable comprising:

  • a support separator configured to provide a plurality of channels for receiving transmission media, said support separator comprising a first foamed polymeric material;

    at least one optical fiber disposed in one of said channels;

    at least an electrical conductor having an American Wire Gauge (AWG) in a range of about 22 to about 26 and capable of carrying at least about 10 watts of electrical power disposed in another one of said channels;

    an insulation configured to at least partially cover said electrical conductor; and

    a jacket configured to surround said support separator and said transmission media, said jacket comprising a second foamed polymeric material;

    wherein said foamed polymeric material of any of the support separator and the jacket comprises a plurality of cellular structures characterized by cells having a size in a range of about 0.0005 inches to about 0.003 inches.

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