Positive temperature coefficient composition and associated method

Invention claims a composition containing dispersed in polymer basal body in the filling material. The filler is a certain temperature range can be conductive and having a curie temperature. The composition may have a threshold value temperature the temperature of the composition of resistance along temperature is increased to raise and the said composition the threshold value of the temperature can be the filling the curie temperature determining. Filling material in the polymer basal body the amount of can be determined to polymer basal body or filling material one or both of a property. Also claims a method related.