PTC conductive polymer compositions

Details PTC conductive polymer compositions PTC conductive polymer compositions

1992-04-13

1993-03-16

DeBoer, Todd E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

338 25, 219505, H05B 102

Patent

active

051950138

ABSTRACT:
Conductive polymer PTC compositions have improved properties, especially at voltages of 200 volts or more, if they are very highly cross-linked by means of irradiation, for example to a dosage of at least 50 Mrads, preferably at least 80 Mrads, e.g. 120 to 600 Mrads. The cross-linked compositions are particularly useful in circuit protection devices and layered heaters.

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