Modified fluoropolymers for low flame/low smoke plenum cables

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

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428382, 428421, 524399, 524404, 524407, 524413, 524417, 524421, 524423, 524437, 524544, 524545, 524546, C08K 322, C08L 2712

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active

049579614

ABSTRACT:
An improved fluoropolymer composition for insulating wires or jacketing cables comprising a blend of fluoropolymer and an additive selected from the class consisting of zinc borate, ZnCO.sub.3, ZnCrO4, ZnMoO.sub.4, Zn.sub.3 (PO.sub.4).sub.2, ZnSiO.sub.4, ZnSO.sub.4, ZnTiO.sub.3, ZnZrO.sub.4, zinc ammonium sulfate, zinc acetyl acetonate, zinc formate, zinc oxalate, BiBO.sub.3, alumina trihydrate, mixtures of molybdenum and tin oxides, molybdenum trioxide, antimony trioxide, and pyrogenic silica. A preferred additive is zinc borate. This composition provides for wire insulation and cable jackets which have improved flame and smoke resistance with federal safety and Underwriters Laboratories standards.

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