DE2345320C2 - Verfahren zur Herstellung eines sich selbst regulierenden elektrischen Widerstandskörpers - Google Patents

Verfahren zur Herstellung eines sich selbst regulierenden elektrischen Widerstandskörpers

Info

Publication number
DE2345320C2
DE2345320C2 DE2345320A DE2345320A DE2345320C2 DE 2345320 C2 DE2345320 C2 DE 2345320C2 DE 2345320 A DE2345320 A DE 2345320A DE 2345320 A DE2345320 A DE 2345320A DE 2345320 C2 DE2345320 C2 DE 2345320C2
Authority
DE
Germany
Prior art keywords
temperature
resistance
carbon black
heat treatment
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.)
Expired
Application number
DE2345320A
Other languages
German (de)
English (en)
Other versions
DE2345320A1 (de
Inventor
Ronald Leo San Leandro Calif. Bedard
Wendell William Atherton Calif. Mayer jun.
Robert Portola Valley Calif. Smith-Johannsen
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.)
Raychem Corp
Original Assignee
Raychem Corp
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 Raychem Corp filed Critical Raychem Corp
Publication of DE2345320A1 publication Critical patent/DE2345320A1/de
Application granted granted Critical
Publication of DE2345320C2 publication Critical patent/DE2345320C2/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Ceramic Engineering (AREA)
  • Electromagnetism (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Conductive Materials (AREA)
  • Materials For Medical Uses (AREA)
DE2345320A 1972-09-08 1973-09-07 Verfahren zur Herstellung eines sich selbst regulierenden elektrischen Widerstandskörpers Expired DE2345320C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28744272A 1972-09-08 1972-09-08

Publications (2)

Publication Number Publication Date
DE2345320A1 DE2345320A1 (de) 1974-04-04
DE2345320C2 true DE2345320C2 (de) 1984-11-08

Family

ID=23102932

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2345320A Expired DE2345320C2 (de) 1972-09-08 1973-09-07 Verfahren zur Herstellung eines sich selbst regulierenden elektrischen Widerstandskörpers

Country Status (7)

Country Link
JP (1) JPS4968297A (fr)
BE (1) BE804627A (fr)
CA (1) CA1014314A (fr)
DE (1) DE2345320C2 (fr)
FR (1) FR2199172B1 (fr)
GB (1) GB1449261A (fr)
HK (1) HK1382A (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188276A (en) * 1975-08-04 1980-02-12 Raychem Corporation Voltage stable positive temperature coefficient of resistance crosslinked compositions
US4388607A (en) 1976-12-16 1983-06-14 Raychem Corporation Conductive polymer compositions, and to devices comprising such compositions
GB1597007A (en) * 1976-12-16 1981-09-03 Raychem Corp Conductive polymer compositions and devices
US4237441A (en) * 1978-12-01 1980-12-02 Raychem Corporation Low resistivity PTC compositions
US4277673A (en) * 1979-03-26 1981-07-07 E-B Industries, Inc. Electrically conductive self-regulating article
US4935156A (en) * 1981-09-09 1990-06-19 Raychem Corporation Conductive polymer compositions
US5093898A (en) * 1981-09-09 1992-03-03 Raychem Corporation Electrical device utilizing conductive polymer composition
US5025131A (en) * 1981-09-09 1991-06-18 Raychem Corporation Method of heating diesel fuel utilizing conductive polymer heating elements
JPS59102940A (ja) * 1982-12-06 1984-06-14 Hitachi Cable Ltd 自己温度制御性ヒ−タ用樹脂組成物
US5494610A (en) * 1992-06-29 1996-02-27 Lovell; Walter C. Apparatus and method for providing medium temperature conductive-resistant articles
US6059997A (en) * 1995-09-29 2000-05-09 Littlelfuse, Inc. Polymeric PTC compositions
US6023403A (en) 1996-05-03 2000-02-08 Littlefuse, Inc. Surface mountable electrical device comprising a PTC and fusible element
US6282072B1 (en) 1998-02-24 2001-08-28 Littelfuse, Inc. Electrical devices having a polymer PTC array
US6582647B1 (en) 1998-10-01 2003-06-24 Littelfuse, Inc. Method for heat treating PTC devices
US6628498B2 (en) 2000-08-28 2003-09-30 Steven J. Whitney Integrated electrostatic discharge and overcurrent device
US7183891B2 (en) 2002-04-08 2007-02-27 Littelfuse, Inc. Direct application voltage variable material, devices employing same and methods of manufacturing such devices
JP2019199003A (ja) * 2018-05-15 2019-11-21 東芝機械株式会社 導電性複合材料の製造方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE562035A (fr) *
US3243753A (en) * 1962-11-13 1966-03-29 Kohler Fred Resistance element
US3351882A (en) * 1964-10-09 1967-11-07 Polyelectric Corp Plastic resistance elements and methods for making same
US3410984A (en) * 1966-05-03 1968-11-12 Gen Electric Flexible electrically heated personal warming device
US3435401A (en) * 1966-10-05 1969-03-25 Texas Instruments Inc Insulated electrical conductors
GB1201166A (en) * 1967-12-04 1970-08-05 Ici Ltd Conducting plastic articles
CA949637A (en) * 1970-08-03 1974-06-18 Henry J. Stinger Process for making electrically conductive heating elements

Also Published As

Publication number Publication date
BE804627A (fr) 1974-03-07
CA1014314A (en) 1977-07-26
FR2199172A1 (fr) 1974-04-05
GB1449261A (en) 1976-09-15
DE2345320A1 (de) 1974-04-04
HK1382A (en) 1982-01-22
FR2199172B1 (fr) 1977-09-02
JPS4968297A (fr) 1974-07-02

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Legal Events

Date Code Title Description
D2 Grant after examination
8364 No opposition during term of opposition