JPS6453503A - Ptc composition - Google Patents
Ptc compositionInfo
- Publication number
- JPS6453503A JPS6453503A JP21056887A JP21056887A JPS6453503A JP S6453503 A JPS6453503 A JP S6453503A JP 21056887 A JP21056887 A JP 21056887A JP 21056887 A JP21056887 A JP 21056887A JP S6453503 A JPS6453503 A JP S6453503A
- Authority
- JP
- Japan
- Prior art keywords
- particle
- thermal
- polymer
- carbon black
- conductive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
- H01C7/027—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient consisting of conducting or semi-conducting material dispersed in a non-conductive organic material
Abstract
PURPOSE:To manufacture an element of an arbitrary shape which has a high ratio of a peak resistance value to a room-temperature resistance value and whose thermal distribution is excellent without causing a local trip by a method wherein a metal powder as a high thermal-conduction particle is contained in a composition formed by dispersing carbon black as a conductive particle in a polymer. CONSTITUTION:At least carbon black is used as a conductive particle to be dispersed in a polymer; in addition, it is used by combining a particle of a conductive substance such as a silver powder, a gold powder or the like. The thermal-conductive particle to be dispersed in the polymer contains at least one substance selected from, e.g., nickel, silver, copper, gold, aluminum, magnesium, molybdenum, tungsten, zinc, cobalt, cadmium, iron, platinum and lead which gives moderate thermal conductivity and which offers a PTC element whose thermal distribution is good. A particle diameter, a specific area or the like of this thermal-conductive particle is to be, e.g., 1-50mum; its average particle diameter is preferably 2-20mum. A mixing ratio of the polymer to the particle is 10-480wt.% with reference to the weight of the carbon black contained in this PTC composition.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21056887A JPS6453503A (en) | 1987-08-25 | 1987-08-25 | Ptc composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21056887A JPS6453503A (en) | 1987-08-25 | 1987-08-25 | Ptc composition |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6453503A true JPS6453503A (en) | 1989-03-01 |
Family
ID=16591476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21056887A Pending JPS6453503A (en) | 1987-08-25 | 1987-08-25 | Ptc composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6453503A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005346945A (en) * | 2004-05-31 | 2005-12-15 | Sanyo Electric Co Ltd | Battery pack |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56161464A (en) * | 1980-04-21 | 1981-12-11 | Raychem Corp | Filler-containing ptc electroconductive polymer composition |
-
1987
- 1987-08-25 JP JP21056887A patent/JPS6453503A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56161464A (en) * | 1980-04-21 | 1981-12-11 | Raychem Corp | Filler-containing ptc electroconductive polymer composition |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005346945A (en) * | 2004-05-31 | 2005-12-15 | Sanyo Electric Co Ltd | Battery pack |
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