Patent ID: 7241402

Claim:
An organic positive temperature coefficient thermistor provided with a pair of mutually opposing electrodes and a thermistor element with a positive resistance-temperature characteristic situated between said pair of electrodes, wherein said thermistor element contains a cured body derived from a mixture comprising an epoxy resin, a curing agent and conductive particles, and there is included in said epoxy resin and/or curing agent a compound which imparts flexibility to said cured body, and said epoxy resin contains a compound represented by the following general formula (2): wherein R 11 represents an optionally substituted C1-20 divalent chain group which is saturated hydrocarbon groups or unsaturated hydrocarbon groups optionally including hetero atoms within the main chain skeleton, and R 12 and R 13 may be the same or different and each represents a divalent organic group represented by the following general formula (a) —(Ar—X 1 )— (a) wherein Ar represents an optionally substituted divalent 5-membered cyclic group, 6-membered cyclic group, naphthalene group or anthracene group, and X 1 represents a C1 or greater divalent chain group.