摘要 |
A synergistic flame retardant combination includes (a) a phosphorus salt having the formula wherein M<SUP>d+</SUP> is a metal ion or an onium ion; d is 1, 2, 3, or 4 according to the identity of M and its oxidation state; each occurrence of R<SUP>1 </SUP>and R<SUP>2 </SUP>is independently C<SUB>1</SUB>-C<SUB>18 </SUB>hydrocarbyl; and each occurrence of m and n is independently 0 or 1; and (b) a phosphine compound selected from trihydrocarbylphosphines, trihydrocarbylphosphine oxides, and combinations thereof. Polymer compositions utilizing the flame retardant combination are described.
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