FR2603132A1 - Procede de fabrication d'elements chauffants autoregulants a temperature de commutation elevee et nouveaux elements chauffants autoregulants susceptibles d'etre obtenus par mise en oeuvre de ce procede - Google Patents

Procede de fabrication d'elements chauffants autoregulants a temperature de commutation elevee et nouveaux elements chauffants autoregulants susceptibles d'etre obtenus par mise en oeuvre de ce procede

Info

Publication number
FR2603132A1
FR2603132A1 FR8611944A FR8611944A FR2603132A1 FR 2603132 A1 FR2603132 A1 FR 2603132A1 FR 8611944 A FR8611944 A FR 8611944A FR 8611944 A FR8611944 A FR 8611944A FR 2603132 A1 FR2603132 A1 FR 2603132A1
Authority
FR
France
Prior art keywords
temp
mixing
specified
shaping
fluoro
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.)
Granted
Application number
FR8611944A
Other languages
English (en)
Other versions
FR2603132B1 (fr
Inventor
Bernard Michel Dalle
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.)
Electricite de France SA
Original Assignee
Electricite de France SA
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 Electricite de France SA filed Critical Electricite de France SA
Priority to FR8611944A priority Critical patent/FR2603132B1/fr
Publication of FR2603132A1 publication Critical patent/FR2603132A1/fr
Application granted granted Critical
Publication of FR2603132B1 publication Critical patent/FR2603132B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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)
  • Resistance Heating (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PROCEDE DE FABRICATION D'ELEMENTS CHAUFFANTS AUTOREGULANTS 1 A TEMPERATURE DE COMMUTATION ELEVEE, CARACTERISE PAR LE FAIT QUE SUCCESSIVEMENT :- ON MELANGE DIRECTEMENT, SOUS FORME DE POUDRES, DES POLYMERES FLUORES, DE PREFERENCE DU FLUORURE DE POLYVINYLIDENE ET DU COPOLYMERE D'ETHYLENE ET DE TETRAFLUOROETHYLENE AINSI QUE DES CHARGES CONDUCTRICES ET DES CHARGES MINERALES,- ON SOUMET LE MELANGE AINSI CONSTITUE TOUT D'ABORD A UN MALAXAGE DE MOINS DE 15 MINUTES, LE MELANGE SE TROUVANT INITIALEMENT A AU MOINS 340 C, PUIS APRES MISE EN FORME DE L'ELEMENT, ON SOUMET CELUI-CI A UN RECUIT A TROIS PALIERS DONT LE PREMIER S'EFFECTUE A UNE TEMPERATURE SUPERIEURE A LA TEMPERATURE DE FUSION DU POLYMERE ENTRANT DANS LA CONSTITUTION DE L'ELEMENT ET QUI A LA TEMPERATURE DE FUSION LA PLUS ELEVEE, DONT LE DEUXIEME S'EFFECTUE A UNE TEMPERATURE COMPRISE ENTRE LES TEMPERATURES DE FUSION DES DEUX POLYMERES ENTRANT DANS LA CONSTITUTION DE L'ELEMENT ET DONT LE TROISIEME S'EFFECTUE A UNE TEMPERATURE INFERIEURE A LA TEMPERATURE DE FUSION DU POLYMERE ENTRANT DANS LA CONSTITUTION DE L'ELEMENT ET AYANT LA TEMPERATURE DE FUSION LA PLUS BASSE.
FR8611944A 1986-08-21 1986-08-21 Procede de fabrication d'elements chauffants autoregulants a temperature de commutation elevee et nouveaux elements chauffants autoregulants susceptibles d'etre obtenus par mise en oeuvre de ce procede Expired FR2603132B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8611944A FR2603132B1 (fr) 1986-08-21 1986-08-21 Procede de fabrication d'elements chauffants autoregulants a temperature de commutation elevee et nouveaux elements chauffants autoregulants susceptibles d'etre obtenus par mise en oeuvre de ce procede

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8611944A FR2603132B1 (fr) 1986-08-21 1986-08-21 Procede de fabrication d'elements chauffants autoregulants a temperature de commutation elevee et nouveaux elements chauffants autoregulants susceptibles d'etre obtenus par mise en oeuvre de ce procede

Publications (2)

Publication Number Publication Date
FR2603132A1 true FR2603132A1 (fr) 1988-02-26
FR2603132B1 FR2603132B1 (fr) 1988-11-25

Family

ID=9338433

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8611944A Expired FR2603132B1 (fr) 1986-08-21 1986-08-21 Procede de fabrication d'elements chauffants autoregulants a temperature de commutation elevee et nouveaux elements chauffants autoregulants susceptibles d'etre obtenus par mise en oeuvre de ce procede

Country Status (1)

Country Link
FR (1) FR2603132B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995001642A1 (fr) * 1993-06-29 1995-01-12 Raychem Corporation Composition polymere conductrice

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2214947A1 (fr) * 1973-01-18 1974-08-19 Raychem Corp
EP0040537A2 (fr) * 1980-05-19 1981-11-25 RAYCHEM CORPORATION (a California corporation) Compositions de polymères conducteurs à coefficient positif de température et dispositifs les contenant ainsi que méthode pour leur fabrication

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2214947A1 (fr) * 1973-01-18 1974-08-19 Raychem Corp
EP0040537A2 (fr) * 1980-05-19 1981-11-25 RAYCHEM CORPORATION (a California corporation) Compositions de polymères conducteurs à coefficient positif de température et dispositifs les contenant ainsi que méthode pour leur fabrication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995001642A1 (fr) * 1993-06-29 1995-01-12 Raychem Corporation Composition polymere conductrice
US5451919A (en) * 1993-06-29 1995-09-19 Raychem Corporation Electrical device comprising a conductive polymer composition

Also Published As

Publication number Publication date
FR2603132B1 (fr) 1988-11-25

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Legal Events

Date Code Title Description
ST Notification of lapse