Patent ID: 9589703
Date: 2017-03-07
CPC Classifications: H01B

Claim:
1. A halogen-free data cable, comprising: a plurality of insulated conductors twisted into pairs, each of the plurality of insulated conductors comprising a conductor and a first insulation layer, wherein the first insulation layer comprises a primary polymer; at least one intumescent tape surrounding at least one of the pairs of insulated conductors, the intumescent tape comprising a substrate layer and an intumescent coating, wherein the substrate layer comprises an organic matrix and an inorganic compound, the inorganic compound comprising one or more of inorganic fillers and fibers; and the organic matrix comprises one or more of epoxy, polyester, polyurethane, silicone, vinyl ester and phenolic, polypropylene, polyamide, polyphenylene sulfide, polyimide, polyetherimide, and polyether ether ketone; and the one or more inorganic fillers and fibers are selected from the group consisting of fiberglass, carbon, aramid, Kevlar®, and combinations thereof; and a jacket.