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Optical cable fiber provided with a non-migrating antioxidant

  • US 6,424,771 B1
  • Filed: 02/21/2000
  • Issued: 07/23/2002
  • Est. Priority Date: 02/21/2000
  • Status: Expired due to Fees
First Claim
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1. An optical fiber cable, which comprises:

  • a core including at least one optical fiber transmission medium;

    a sheath system which is disposed about the core; and

    a filling composition of matter which is disposed about the transmission medium in the core, said composition of matter including a hydrocarbon, a block copolymer, a colloidal filler, and an antioxidant system which is sterochemically hindered from migrating out of the filling material, wherein the antioxidant system is composed of a combination of 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert butyl-4-hydroxybenzyl) benzene and 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione.

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