GB2106920B - Conductive polymer compositions based on polyvinylidene fluoride - Google Patents

Conductive polymer compositions based on polyvinylidene fluoride

Info

Publication number
GB2106920B
GB2106920B GB08225680A GB8225680A GB2106920B GB 2106920 B GB2106920 B GB 2106920B GB 08225680 A GB08225680 A GB 08225680A GB 8225680 A GB8225680 A GB 8225680A GB 2106920 B GB2106920 B GB 2106920B
Authority
GB
United Kingdom
Prior art keywords
polyvinylidene fluoride
conductive polymer
polymer compositions
compositions based
improved properties
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
GB08225680A
Other versions
GB2106920A (en
Inventor
Andrew Au
Peter Van Konynenburg
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 GB2106920A publication Critical patent/GB2106920A/en
Application granted granted Critical
Publication of GB2106920B publication Critical patent/GB2106920B/en
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
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/146—Conductive polymers, e.g. polyethylene, thermoplastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Electromagnetism (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Conductive Materials (AREA)
  • Thermistors And Varistors (AREA)
  • Resistance Heating (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Wick-Type Burners And Burners With Porous Materials (AREA)

Abstract

Conductive polymer compositions based on polyvinylidene fluoride have improved properties when the polyvinylidene fluoride has a very regular structure characterized by a low head-to-head content in the repeating units. The improved properties include improved electrical stability when contacted by organic fluids and/or when maintained at elevated temperatures in air. Such compositions are particularly useful in the form of self-limiting heaters, e.g. for heating diesel fuel.
GB08225680A 1981-09-09 1982-09-09 Conductive polymer compositions based on polyvinylidene fluoride Expired GB2106920B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30070981A 1981-09-09 1981-09-09

Publications (2)

Publication Number Publication Date
GB2106920A GB2106920A (en) 1983-04-20
GB2106920B true GB2106920B (en) 1985-06-26

Family

ID=23160253

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08225680A Expired GB2106920B (en) 1981-09-09 1982-09-09 Conductive polymer compositions based on polyvinylidene fluoride

Country Status (6)

Country Link
EP (1) EP0074281B1 (en)
JP (2) JPS5853939A (en)
AT (1) ATE35745T1 (en)
CA (1) CA1236246A (en)
DE (1) DE3278775D1 (en)
GB (1) GB2106920B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1236246A (en) * 1981-09-09 1988-05-03 Raychem Corporation Electrically conductive polyvinylidene fluoride compositions
US4571481A (en) * 1983-03-11 1986-02-18 Raychem Corporation Method and apparatus for electrically heating diesel fuel
US4722853A (en) * 1985-08-12 1988-02-02 Raychem Corporation Method of printing a polymer thick film ink
JPS6265401A (en) * 1985-09-18 1987-03-24 安田　繁之 Regulating method for ordinary heating temperature in thermosensitive electric resistance compositiion
US4861966A (en) * 1985-10-15 1989-08-29 Raychem Corporation Method and apparatus for electrically heating diesel fuel utilizing a PTC polymer heating element
EP0388990A3 (en) 1986-02-20 1993-03-31 RAYCHEM CORPORATION (a Delaware corporation) Method and articles employing ion exchange material
JPH0799721B2 (en) * 1986-09-13 1995-10-25 日本メクトロン株式会社 Method for producing PTC composition
US5174924A (en) * 1990-06-04 1992-12-29 Fujikura Ltd. Ptc conductive polymer composition containing carbon black having large particle size and high dbp absorption
FR2816625A1 (en) * 2000-11-13 2002-05-17 Atofina Composite material with a positive temperature coefficient, useful in heating devices, comprises a vinylidene fluoride (co)polymer in beta crystal form and a conductive filler
FR2816626A1 (en) * 2000-11-13 2002-05-17 Atofina SELF-CONTROLLED TEMPERATURE RESISTANCE-CONDUCTIVE POLYMERIC COMPOSITE MATERIAL
WO2004074371A1 (en) 2003-02-19 2004-09-02 Du Pont-Mitsui Fluorochemical Company Ltd. Fluororesin composite compositions
US9573438B2 (en) * 2013-04-10 2017-02-21 E I Du Pont De Nemours And Company Polymer thick film positive temperature coefficient carbon composition

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3503923A (en) * 1967-11-20 1970-03-31 Pennsalt Chemicals Corp Vinylidene fluoride polymer compositions having high thermal stability
JPS55111183A (en) * 1979-02-20 1980-08-27 Ngk Spark Plug Co Ltd Piezoelectric high-molecular compound material
US4237441A (en) * 1978-12-01 1980-12-02 Raychem Corporation Low resistivity PTC compositions
DE2928081C2 (en) * 1979-07-12 1982-08-19 Glyco-Metall-Werke Daelen & Loos Gmbh, 6200 Wiesbaden Laminated composite material and process for its manufacture
EP0068688A3 (en) * 1981-06-15 1983-05-25 RAYCHEM CORPORATION (a California corporation) Fuel line heater feedthrough
CA1236246A (en) * 1981-09-09 1988-05-03 Raychem Corporation Electrically conductive polyvinylidene fluoride compositions

Also Published As

Publication number Publication date
ATE35745T1 (en) 1988-07-15
JPH0395248A (en) 1991-04-19
JPH0334498B2 (en) 1991-05-22
EP0074281A1 (en) 1983-03-16
DE3278775D1 (en) 1988-08-18
EP0074281B1 (en) 1988-07-13
JPS5853939A (en) 1983-03-30
GB2106920A (en) 1983-04-20
CA1236246A (en) 1988-05-03

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20020908