Lightweight nonwoven fire retardant barrier

  • US 7,410,920 B2
  • Filed: 11/02/2004
  • Issued: 08/12/2008
  • Est. Priority Date: 11/02/2004
  • Status: Active Grant
First Claim
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1. A non-woven flame retardant barrier consisting of charring modified viscose fibers having a denier of about 3.5 or less, wherein the barrier is substantially free of polymers made from halogenated monomers and has a maximum basis weight of 0.75 osf.

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