PTC conductive polymer compositions

Details PTC conductive polymer compositions PTC conductive polymer compositions

1990-06-01

1992-08-18

Lateef, Marvin M.

Electrical resistors

Resistance value responsive to a condition

Current and/or voltage

219505, H01C 710, H05B 102

Patent

active

051402971

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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