Conductive polymer compositions, and to devices comprising such

Details Conductive polymer compositions, and to devices comprising such Conductive polymer compositions, and to devices comprising such

1979-10-17

1983-06-14

Reynolds, B. A.

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

219549, 219553, 252511, H01B 104, H01C 713

Patent

active

043886078

ABSTRACT:
Conductive polymer compositions which have improved voltage stability and which preferably exhibit PTC behavior. The compositions comprise a carbon black dispersed in a crystalline copolymer of an olefin and at least 10% by weight of an olefinically unsaturated comonomer containing a polar group. The carbon black has a particle size greater than 18 millimicrons, preferably greater than 30 millimicrons, a d-spacing greater than 360 and a surface area which is less than

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Union Carbide Product Data Sheet, F-42922, "Bakelite Semiconductive Ethylene Copolymer, DHDA 7702 Black 55 for Wire and Cable".
Union Carbide Product Data Sheet, F-45621, "Bakelite DHDA-7704 Black 55".

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