Patent ID: 7314583

Claim:
An organic positive temperature coefficient thermistor device comprising a pair of electrodes disposed so as to oppose each other, and a thermistor body having a positive resistance-temperature characteristic disposed between the electrodes, wherein the thermistor body consists of a cured product of a mixture containing a curing agent, an electrically conductive particle and an epoxy resin including a flexible epoxy resin selected from: an epoxy resin having a linear structure that consists of any divalent organic group expressed by the following formula (v) combined to at least two glycidyl ether groups: —CH 2 C(C 2 H 5 )(CH 3 )CH 2 — (v); a rubber-modified epoxy resin, wherein fine particles of liquid rubber of polybutylene (BR) or butadiene/acrylonitrile (NBR) having a carboxyl group, hydroxyl group or epoxy group at a terminal, or polybutadiene (PBR) having a carboxyl group or hydroxyl group at a terminal, are dispersed; and a polythiol-based epoxy resin.