FR2336021A1 - Laminated PTFE strips for flexible heating tapes - incorporating parallel conductors for uniform power output - Google Patents

Laminated PTFE strips for flexible heating tapes - incorporating parallel conductors for uniform power output

Info

Publication number
FR2336021A1
FR2336021A1 FR7638320A FR7638320A FR2336021A1 FR 2336021 A1 FR2336021 A1 FR 2336021A1 FR 7638320 A FR7638320 A FR 7638320A FR 7638320 A FR7638320 A FR 7638320A FR 2336021 A1 FR2336021 A1 FR 2336021A1
Authority
FR
France
Prior art keywords
conductive layer
flexible heating
tapes
power output
parallel conductors
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.)
Withdrawn
Application number
FR7638320A
Other languages
French (fr)
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of FR2336021A1 publication Critical patent/FR2336021A1/en
Withdrawn legal-status Critical Current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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables
    • 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—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heater 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—Heater 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
    • 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables
    • H05B3/565—Heating cables flat cables

Abstract

Composite heating strips comprising a layer of sintered PTFE cong. sufficient (1-10%) carbon black to have a volume resistivity of 0.001-0.02 ohm.m, this conductive layer being enclosed in an insulating sheath made of two layers of non conductive PTFE strip joined along their borders. The conductive layer is 40-1000 mym thick, 4-100 mm wide and incorporates twin metallic conductors parallel to and near the borders of the conductive layer. Used for flexible heating tapes for wrap-round application, typically of 5-80W output at 220V. Unlike cables with terminals each end, the power dissipated per unit area is nominally independent of the cable length, allowing tapes up to 50 m long to be made as a single strip without successive connections which have to be electrically coupled in parallel.
FR7638320A 1975-12-20 1976-12-20 Laminated PTFE strips for flexible heating tapes - incorporating parallel conductors for uniform power output Withdrawn FR2336021A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19757540729 DE7540729U (en) 1975-12-20 1975-12-20 FLAT TAPE HEATING CABLE

Publications (1)

Publication Number Publication Date
FR2336021A1 true FR2336021A1 (en) 1977-07-15

Family

ID=6658989

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7638320A Withdrawn FR2336021A1 (en) 1975-12-20 1976-12-20 Laminated PTFE strips for flexible heating tapes - incorporating parallel conductors for uniform power output

Country Status (3)

Country Link
BE (1) BE849624A (en)
DE (1) DE7540729U (en)
FR (1) FR2336021A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2879801A1 (en) * 2004-12-22 2006-06-23 Plastic Omnium Cie Electrically conductive material based on a fluoropolymer contains a conductive filler in the form of carbon black, carbon nanotubes or carbon nanofibers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2738136B1 (en) * 1995-09-01 1997-10-10 Saves Gerard MULTILAYER ELEMENT FOR COOKING OR HEATING FOOD PRODUCTS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2879801A1 (en) * 2004-12-22 2006-06-23 Plastic Omnium Cie Electrically conductive material based on a fluoropolymer contains a conductive filler in the form of carbon black, carbon nanotubes or carbon nanofibers
EP1675129A1 (en) * 2004-12-22 2006-06-28 Compagnie Plastic Omnium Electrically conductive material based on fluoropolymers and method of producing the same
EP1675130A1 (en) * 2004-12-22 2006-06-28 Compagnie Plastic Omnium Electrically conductive material based on fluoropolymers and method of producing the same

Also Published As

Publication number Publication date
DE7540729U (en) 1976-04-15
BE849624A (en) 1977-06-20

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Legal Events

Date Code Title Description
ST Notification of lapse