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JPS6453503A - Ptc composition - Google Patents

Ptc composition

Info

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
Application number
JP21056887A
Other languages
Japanese (ja)
Inventor
Takatoshi Akatsuka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Mektron KK
Original Assignee
Nippon Mektron KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Mektron KK filed Critical Nippon Mektron KK
Priority to JP21056887A priority Critical patent/JPS6453503A/en
Publication of JPS6453503A publication Critical patent/JPS6453503A/en
Pending legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)

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.
JP21056887A 1987-08-25 1987-08-25 Ptc composition Pending JPS6453503A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005346945A (en) * 2004-05-31 2005-12-15 Sanyo Electric Co Ltd Battery pack

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56161464A (en) * 1980-04-21 1981-12-11 Raychem Corp Filler-containing ptc electroconductive polymer composition

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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