Title:
PTC導電性高分子組成物
Document Type and Number:
Japanese Patent JP2004522299
Kind Code:
A
Abstract:
The invention provides polymeric PTC compositions and electrical PTC devices with higher voltage capability and improved electrical stability. The PTC compositions include at a minimum an organic polymer and a conductive filler including carbon black having an iodine adsorption of less than about 60 mg/g carbon and a dibutyl phthalate absorption of greater than about 115 cc/100 g. Depending on device design, the composition can be used in low to high voltage applications.
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Inventors:
Brock, Edward, Jay.
Application Number:
JP2002571585A
Publication Date:
July 22, 2004
Filing Date:
March 12, 2002
Export Citation:
Assignee:
Thermo Disc Incorporated
International Classes:
C08K3/04; H01C7/02; (IPC1-7): H01C7/02
Attorney, Agent or Firm:
Kenzo Hara
Ryuichi Kijima
Ichiro Kaneko
Ryuichi Kijima
Ichiro Kaneko