Electrical devices containing conductive polymers

H - Electricity – 01 – B

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H01B 5/16 (2006.01) B01D 35/06 (2006.01) B32B 7/10 (2006.01) H01C 1/14 (2006.01) H01C 7/02 (2006.01) H05B 3/10 (2006.01) F02B 3/06 (2006.01)

Patent

CA 1261931

ELECTRICAL DEVICES CONTAINING CONDUCTIVE POLYMERS ABSTRACT OF THE DISCLOSURE Electrical devices which comprise at least one metal electrode and a conductive polymer element in contact therewith, wherein the metal surface which con- tacts the conductive polymer has a roughened or other- wise treated surface to improve its adhesion to the conductive polymer. The metal electrode is preferably an electrodeposited foil or a solid or stranded wire having an electrodeposited coating thereon. The con- ductive polymer preferably exhibits PTC behavior. The devices include heaters and circuit protection devices. The improved adhesion results in improved physical and electrical stability, and broadens the range of conduc- tive polymer compositions which can be used in a number of important applications.

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