Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1976-09-23
1978-01-31
Sebastian, Leland A.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219543, 219548, 219549, H05B 314
Patent
active
040717372
ABSTRACT:
An electrically conductive resinous composition of a copper flake, the surface of which has been cleaned by removing therefrom impurities and/or oxides, a resinous binder, an amount of copper flake in said resinous composition being from 25 to 70 percent, the impurities in said copper flake being less than 7000 ppm, said resinous composition being cured with a curative comprising a polyamide or an anhydride, or mixtures thereof; these compositions are suitable for uses such as heating panels or conformable heating shapes.
REFERENCES:
patent: 2795680 (1957-06-01), Peck
patent: 3345225 (1967-10-01), Lacal
patent: 3686139 (1972-08-01), Lubin
Agarwal Jagdish Chandra
Marshall David W.
Kennecott Copper Corporation
Parr E. Suzanne
Sebastian Leland A.
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