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Flame retardant compositions

  • US 4,185,008 A
  • Filed: 10/10/1978
  • Issued: 01/22/1980
  • Est. Priority Date: 10/10/1978
  • Status: Expired due to Term
First Claim
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1. A composition comprising:

  • (a) a thermoplastic polymer and at least one primary flame retardant consisting of a chlorine or bromine containing organic compound;

    (b) a secondary flame retardant agent in an amount sufficient to give an improved oxygen index, said agent comprising;

    about 0.05 to about 15 weight percent of one or more nitrate containing compounds selected from the group consisting of sodium nitrate, ammonium nitrate, metal ammine nitrates and guanidine nitrates.

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