Compositions for riser and plenum cables

摘要

Materials for making cable jackets, particularly riser and plenum cables, are provided. The materials provide low flammability and allow the cable to meet UL 910 or NFPA 262 or UL 1666 specifications. The material contains PVC resin, a plasticizer, a metal oxide particle, and optionally a brominated phthalate. Preferably, the metal oxide particle is spherical amorphous silicon dioxide. More preferably, the spherical amorphous silicon dioxide has a mean particle size of about 100-200 nm and/or a BET surface area of about 10-30 m2/g. The metal oxide particle is also preferably metal oxide particle non-porous, non-ionic, and/or non-hydrated.

主权项

1. A composition comprising:
a) a polyvinyl chloride (PVC) resin; b) a plasticizer; c) silicon dioxide particles having a mean particle size of less than about 300 nm and a BET surface area of about 10-30 m2/g; and d) about 7% or less by weight of a brominated phthalate.