Semi-conductive heating cable

Details Semi-conductive heating cable Semi-conductive heating cable

1983-11-02

1985-05-28

Ziegler, Jacob

Electric heating

Heating devices

With heating unit structure

219528, 338 22R, 2041592, H05B 310

Patent

active

045202605

ABSTRACT:
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.

REFERENCES:
patent: 3769370 (1973-10-01), Martin et al.
patent: 4052279 (1977-10-01), Lyons
patent: 4200973 (1980-05-01), Farkas
patent: 4226687 (1980-10-01), Sasaki et al.
patent: 4264490 (1981-04-01), Beiejka

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