Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jong-Hawk Kim0
Hyun-Nam Cho0
Yong-In Lee0
Date of Patent
February 21, 2006
0Patent Application Number
104729270
Date Filed
February 27, 2002
0Patent Primary Examiner
Patent abstract
The present invention relates to a conductive polymer composition having PTC properties, that is, a PTC composition, and a PTC device comprised thereof, in particular, it relates to a PTC composition and a PTC device comprising thereof, wherein the PTC composition comprises: a) at least one crystalline thermoplastic olefin-based polymer and at least one rubber-based polymer resin containing unsaturated group; and b) conductive particles dispersed in a polymer matrix formed of component a). The PTC device comprising the PTC composition makes it possible to construct circuit protecting devices which can stably maintain their initial resistance value in spite of repeated current cycling by short-circuit.
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