| abstract |
A conductive polymer composition exhibiting positive temperature coefficient behavior comprising: n (a) a crystalline polymer having dispersed therein n (b) carbon black having an average particle diameter of at least about 60 millimicrons and a DBP absorption of at least about 80 cc/100 g. n Circuit protection devices containing a thin layer of this conductive polymer composition between laminar electrodes provide high breakdown voltage in combination with very low resistance and are useful for protecting high-current/high voltage battery-powered devices. |