ELECTRICAL DEVICES COMPRISING CROSS-LINKED CONDUCTIVE POLYMERS

摘要

ELECTRICAL DEVICES COMPRISING CROSS-LINKED CONDUCTIVE POYLYMERS Andrew Au Marguerite Deep Tim Fahey Stephen Jacobs Electrical devices containing PTC conductive polymers which have been cross-linked in two steps, preferably by radiation. The conductive polymer is heat-treated above its melting point between the two cross-linking steps, and/or one of the cross-linking steps is effected on part only of the conductive polymer. The process is particularly useful for the preparation of circuit protection devices for use at high voltages.