SE331504B - - Google Patents

Info

Publication number
SE331504B
SE331504B SE259164A SE259164A SE331504B SE 331504 B SE331504 B SE 331504B SE 259164 A SE259164 A SE 259164A SE 259164 A SE259164 A SE 259164A SE 331504 B SE331504 B SE 331504B
Authority
SE
Sweden
Prior art keywords
resistance
substance
coefficient
insulating material
march
Prior art date
Application number
SE259164A
Inventor
F Hummel
R Bauer
Original Assignee
Elofol 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 Elofol Ag filed Critical Elofol Ag
Publication of SE331504B publication Critical patent/SE331504B/xx

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—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
    • 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
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
    • H01C17/065—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thick film techniques, e.g. serigraphy
    • 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
    • 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

Abstract

1,053,331. Resistance material. ELOFOL A.G. March 4, 1964 [March 5, 1963], No. 9119/64. Heading H1K. Electric resistance material comprises a finely divided resistance substance, preferably graphite or a resistance wire alloy containing iron, a non-conductive inert carrier material such as synthetic resin, and an insulating material, for example glass powder, beeswax or a silicone oil, the insulating material having a substantially higher specific resistance and a greater coefficient of thermal expansion than the resistance substance so that when the resistance material is heated the insulating material expands to a greater extent than the resistance substance and thus increases the resistance to current flow between the particles of resistance substance. The resistance material has a positive temperature coefficient of resistance even if the coefficient of the resistance substance is negative. In use the resistance material is applied as a thin coating on an additional rigid or flexible carrier, or is formed into a self-supporting foil.
SE259164A 1963-03-05 1964-03-03 SE331504B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE0024436 1963-03-05

Publications (1)

Publication Number Publication Date
SE331504B true SE331504B (en) 1971-01-04

Family

ID=7071367

Family Applications (1)

Application Number Title Priority Date Filing Date
SE259164A SE331504B (en) 1963-03-05 1964-03-03

Country Status (8)

Country Link
BE (1) BE644726A (en)
CH (1) CH468704A (en)
DK (1) DK111823B (en)
FR (1) FR1387550A (en)
GB (1) GB1053331A (en)
LU (1) LU45571A1 (en)
NL (1) NL6402135A (en)
SE (1) SE331504B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861029A (en) * 1972-09-08 1975-01-21 Raychem Corp Method of making heater cable
US4954695A (en) * 1972-09-08 1990-09-04 Raychem Corporation Self-limiting conductive extrudates and methods therefor
AT377408B (en) * 1975-03-07 1985-03-25 Rueling Felix METHOD FOR COATING METAL BODIES AND ELECTRICALLY CONDUCTIVE COATING PRODUCED BY THIS METHOD
US4459473A (en) * 1982-05-21 1984-07-10 Raychem Corporation Self-regulating heaters
US6787068B1 (en) 1999-10-08 2004-09-07 E. I. Du Pont De Nemours And Company Conductor composition

Also Published As

Publication number Publication date
BE644726A (en) 1964-07-01
CH468704A (en) 1969-02-15
GB1053331A (en) 1966-12-30
FR1387550A (en) 1965-01-29
NL6402135A (en) 1964-09-07
LU45571A1 (en) 1964-05-04
DE1465454A1 (en) 1969-04-24
DK111823B (en) 1968-10-14
DE1465454B2 (en) 1972-07-13

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