C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 83/08 (2006.01) H01B 3/42 (2006.01) H01B 3/46 (2006.01)
Patent
CA 2158656
Polymer blend for insulating electrical wires comprises a first polymer (polyester) having an inherent L.O.I. not higher than 21 % and up to 40 % by weight of a polyimide-siloxane (PIS) copolymer. Preferred polyesters are polybutylene terephthalate or polyester-ester block copolymers. Preferred wire constructions have core insulation layer of polyethylene or polyester overlaid with jacket of the polyester/PIS copolymer blend.
Fetherstonhaugh & Co.
Raychem Limited
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