Electrical device

Details Electrical device Electrical device

H - Electricity

01

C

H01C 7/02 (2006.01)

Patent

CA 2215959

An electrical device (1) in which a resistive element (3) composed of a conductive polymer composition and two electrodes (5, 7) is made by a method in which the device is cut from a laminate (9) of the conductive polymer composition and the electrodes, is exposed to a thermal treatment at a temperature above the melting temperature of the conductive polymer composition, and is then cross-linked. The device has improved PTC anomaly over devices prepared by a conventional method in which cross-linking occurs before the cutting step.

Dispositif électrique (1) dans lequel un élément résistant (3), constitué d'une composition polymérique conductrice et de deux électrodes (5, 7), est fabriqué grâce à un procédé consistant à couper le dispositif dans un laminé (9) de la composition et des électrodes, à l'exposer à un traitement thermique à une température supérieure à la température de fusion de la composition, puis à le réticuler. Le dispositif présente des améliorations au niveau des anomalies PTC par rapport aux dispositifs obtenus par des moyens classiques, où la réticulation précède la coupe.

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