ES441299A1 - Electrically conductive compositions and heat-recoverable articles containing them - Google Patents

Electrically conductive compositions and heat-recoverable articles containing them

Info

Publication number
ES441299A1
ES441299A1 ES441299A ES441299A ES441299A1 ES 441299 A1 ES441299 A1 ES 441299A1 ES 441299 A ES441299 A ES 441299A ES 441299 A ES441299 A ES 441299A ES 441299 A1 ES441299 A1 ES 441299A1
Authority
ES
Spain
Prior art keywords
temperature
polymer material
formulation
electrically conductive
crosslinked
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
ES441299A
Other languages
Spanish (es)
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 ES441299A1 publication Critical patent/ES441299A1/en
Expired 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Ceramic Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Conductive Materials (AREA)
  • Thermistors And Varistors (AREA)
  • Resistance Heating (AREA)

Abstract

An electrically conductive crosslinked polymer formulation is produced by using a) a polymer material which is elastomeric in the crosslinked state at room temperature, b) a thermoplastic polymer material whose glass transition temperature, if it is amorphous, is above room temperature, and c) conductive particles or ab) a copolymer, which is composed of polymers a) and b) which are chemically bonded to one another, and c) conductive particles and by crosslinking the polymers or the copolymer ab). Before crosslinking, the polymer material a) has a noticeable initial strength. The crosslinked formulation has an electrical resistance which increases with increasing temperature, at least in a temperature range above the melting point of the components a) and b). Using the formulation obtained, it is possible to create heating elements whose control action continues even when their temperature rises above the melting point of the thermoplastic polymer.
ES441299A 1974-09-27 1975-09-26 Electrically conductive compositions and heat-recoverable articles containing them Expired ES441299A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US51003574A 1974-09-27 1974-09-27
US60163975A 1975-08-04 1975-08-04

Publications (1)

Publication Number Publication Date
ES441299A1 true ES441299A1 (en) 1977-07-01

Family

ID=27056755

Family Applications (1)

Application Number Title Priority Date Filing Date
ES441299A Expired ES441299A1 (en) 1974-09-27 1975-09-26 Electrically conductive compositions and heat-recoverable articles containing them

Country Status (12)

Country Link
JP (1) JPS5160236A (en)
AU (1) AU504687B2 (en)
BR (1) BR7506262A (en)
CA (1) CA1074096A (en)
CH (1) CH639230A5 (en)
DE (1) DE2543346C2 (en)
ES (1) ES441299A1 (en)
FR (1) FR2286169A1 (en)
GB (1) GB1528622A (en)
IT (1) IT1042912B (en)
NL (1) NL7511394A (en)
SE (1) SE412976B (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017715A (en) * 1975-08-04 1977-04-12 Raychem Corporation Temperature overshoot heater
FI64482C (en) * 1974-09-27 1983-11-10 Raychem Corp VAERMEAOTERHAEMTBAR ANORDNING OCH ANORDNING AV DENSAMMA FOER EN KABELSKARV
FR2320678A1 (en) * 1975-08-04 1977-03-04 Raychem Corp Thermal shrink fit sleeve or cover - has high electrical resistance and contains web of interwoven conductors connectable to current source for local heating
US4095044A (en) * 1976-10-26 1978-06-13 Raychem Corporation Multiple cable adapter and splice case including the same
EP0001307A1 (en) * 1977-09-19 1979-04-04 Shell Internationale Researchmaatschappij B.V. A semi-conductive composition and an electric wire or cable coated with such a composition
JPS5835536B2 (en) * 1978-05-22 1983-08-03 大日本インキ化学工業株式会社 resin composition
FR2440104A1 (en) * 1978-10-27 1980-05-23 Raychem Sa Nv HEAT SHRINKABLE FITTINGS IN PARTICULAR FOR CABLES, METHOD FOR THEIR IMPLEMENTATION AND ASSEMBLY COMPRISING SAME
JPS5784586A (en) * 1980-11-13 1982-05-26 Hitachi Cable Self-temperature controllable heater
JPS5917935B2 (en) * 1981-08-25 1984-04-24 住友電気工業株式会社 heat shrink tube
DE3245589A1 (en) * 1982-12-09 1984-06-14 Hoechst Ag, 6230 Frankfurt UNCROSSLINKABLE, ELECTRICALLY CONDUCTIVE MOLDING MATERIALS BASED ON THERMOPLASTIC PLASTICS AND CARBON
JPS59214103A (en) * 1983-05-19 1984-12-04 株式会社フジクラ Mixture for electromagnetic wave absorber
JPS60188439A (en) * 1984-03-09 1985-09-25 Meidensha Electric Mfg Co Ltd Electroconductive composite material
US4724417A (en) * 1985-03-14 1988-02-09 Raychem Corporation Electrical devices comprising cross-linked conductive polymers
JPS6265401A (en) * 1985-09-18 1987-03-24 安田　繁之 Regulating method for ordinary heating temperature in thermosensitive electric resistance compositiion
DE3635286A1 (en) * 1986-10-16 1988-04-21 Lentia Gmbh Surface heating element and process for producing it
JPH028258A (en) * 1988-06-28 1990-01-11 Matsushita Electric Ind Co Ltd Self-temperature control heating element composition
CN1086929A (en) * 1992-09-04 1994-05-18 单一检索有限公司 Flexible, conducting plastic electrode and manufacture method thereof
JP3684867B2 (en) * 1998-10-07 2005-08-17 Ｎｏｋ株式会社 PTC composition and planar heating element
DE10021803B4 (en) * 2000-05-04 2006-06-22 Franz Koppe Heating mat and method of making and using same
WO2020218141A1 (en) * 2019-04-23 2020-10-29 株式会社クラレ Thermoplastic liquid crystal polymer film, multilayer body, molded body and production methods thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3243753A (en) * 1962-11-13 1966-03-29 Kohler Fred Resistance element
US3591526A (en) * 1968-01-25 1971-07-06 Polyelectric Corp Method of manufacturing a temperature sensitive,electrical resistor material
US3793716A (en) * 1972-09-08 1974-02-26 Raychem Corp Method of making self limiting heat elements
US3849333A (en) * 1972-09-26 1974-11-19 Union Carbide Corp Semi-conducting polymer system comprising a copolymer of ethylene-ethylarcralate or vinyl acetate,ethylene-propylene-termonomer and carbon black
US3823217A (en) * 1973-01-18 1974-07-09 Raychem Corp Resistivity variance reduction

Also Published As

Publication number Publication date
CA1074096A (en) 1980-03-25
IT1042912B (en) 1980-01-30
JPS6135223B2 (en) 1986-08-12
GB1528622A (en) 1978-10-18
DE2543346C2 (en) 1985-09-12
FR2286169A1 (en) 1976-04-23
NL7511394A (en) 1976-03-30
SE7510846L (en) 1976-03-29
AU8523075A (en) 1977-03-31
SE412976B (en) 1980-03-24
JPS5160236A (en) 1976-05-26
DE2543346A1 (en) 1976-04-15
CH639230A5 (en) 1983-10-31
AU504687B2 (en) 1979-10-25
BR7506262A (en) 1976-08-03
FR2286169B1 (en) 1979-05-04

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