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Plastic article having flame retardant properties

  • US 6,110,559 A
  • Filed: 09/23/1994
  • Issued: 08/29/2000
  • Est. Priority Date: 11/07/1991
  • Status: Expired due to Fees
First Claim
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1. A flame retardant plastic article consisting essentially of a core of plastic polymeric material having coated thereon a protective, flame retardant layer, the protective flame retardant layer consisting essentially of (i) a thermoplastic polymeric material selected from the group consisting of a polyolefin and blends of polyolefins and (ii) a flame retardant, char-forming, intumescent system containing a flame retardant, char-forming, intumescent additive and a catalyst selected from the group consisting of a phosphoric acid precursor, a polyphosphoric acid precursor, and combinations of the phosphoric acid precursor and the polyphosphoric acid precursor.

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