Disclosed are an exothermic conducting paste mainly comprising a synthetic resin and a heat stable metal oxide which is positive in temperature coefficient of electric resistance and has an electric specific resistance of not more than 5.times.10.sup.3 .mu..OMEGA.cm at ordinary temperature, and an electric...http://www.google.es/patents/US4857384?utm_source=gb-gplus-sharePatente US4857384 - Exothermic conducting paste