Semi-conductive heating cable

H - Electricity – 01 – B

Patent

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H01B 3/44 (2006.01) C08L 23/16 (2006.01) H01C 7/02 (2006.01) H05B 3/14 (2006.01) H05B 3/56 (2006.01)

Patent

CA 1222032

ABSTRACT OF THE DISCLOSURE Disclosed is an improved semi-conductive heating cable having semi-conductive material surrounded by a jacket that is imparted with improved resistance to color change upon exposure to elevated temperatures and is able to minimize changes in the ambient electrical resistivity of the semi-conductive composition arising from exposure of the cable to elevated temperatures by reason of the jacket being made from a radiation crosslinked composition comprising a mixture of at least one elastomer with at least one polyolefin and at least one heat stabilizer wherein the preferred elastomer comprises either or both a terpolymer of ethylene, propylene and at least one diene or an ethylene propylene rubber and the polyolefin is a polypropylene polymer.

463483

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