GB923842A - Resistive elements - Google Patents

Resistive elements

Info

Publication number
GB923842A
GB923842A GB3211759A GB3211759A GB923842A GB 923842 A GB923842 A GB 923842A GB 3211759 A GB3211759 A GB 3211759A GB 3211759 A GB3211759 A GB 3211759A GB 923842 A GB923842 A GB 923842A
Authority
GB
United Kingdom
Prior art keywords
ptfe
dispersion
conductive
conductive material
sinter
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
GB3211759A
Inventor
Gilbert Raymond Seed
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.)
Morganite Resistors Ltd
Original Assignee
Morganite Resistors Ltd
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 Morganite Resistors Ltd filed Critical Morganite Resistors Ltd
Priority to GB3211759A priority Critical patent/GB923842A/en
Publication of GB923842A publication Critical patent/GB923842A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01C17/06506—Precursor compositions therefor, e.g. pastes, inks, glass frits
    • H01C17/06573—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the permanent binder
    • H01C17/06586—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the permanent binder composed of organic material
    • 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

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Conductive Materials (AREA)

Abstract

Electrically conductive compositions, constituted by a liquid dispersion of finely divided PTFE and a conductive or semiconductive material, are applied to a PTFE, glass, or ceramic base, allowed to dry, and subsequently heated to sinter the PTFE. The dispersion, preferably aqueous, and preferably of carbon black or graphite, may be applied by spraying, brushing, or silk screen printing, to a base of PTFE which has preferably received prior heat treatment to relieve stresses, which may contain a non-conductive filler, and which may be in the form of flexible tape or sheet. The dried coating is sintered at 327 DEG to 400 DEG C., and the process may be repeated for a plurality of further coatings, the final sintering being under pressure in a mould to give a smooth surface. Alternatively, the insulating base may be of ceramic or glass, and the conductive material may be metal, ferrite, barium titanate, boron carbide, or silicon carbide.ALSO:An electrically conductive layer is formed from a liquid-preferably aqueous-dispersion of finely divided PTFE and a conductive material, by coating the dispersion on a surface (see Group III), drying, and heating to sinter the PTFE. The conductive material may be graphite or carbon black, metal, ferrite, borium titanate, boron carbide, or silicon carbide.
GB3211759A 1959-09-21 1959-09-21 Resistive elements Expired GB923842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3211759A GB923842A (en) 1959-09-21 1959-09-21 Resistive elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3211759A GB923842A (en) 1959-09-21 1959-09-21 Resistive elements

Publications (1)

Publication Number Publication Date
GB923842A true GB923842A (en) 1963-04-18

Family

ID=10333522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3211759A Expired GB923842A (en) 1959-09-21 1959-09-21 Resistive elements

Country Status (1)

Country Link
GB (1) GB923842A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174280A (en) * 1985-03-22 1986-10-29 Canon Kk Heat generating resistor
GB2174877A (en) * 1985-03-23 1986-11-12 Canon Kk Thermal recording head
EP0317256A2 (en) * 1987-11-20 1989-05-24 Junkosha Co. Ltd. A printed circuit substrate
WO2008084089A1 (en) * 2007-01-12 2008-07-17 Airbus Deutschland Gmbh Coating of an aircraft seat mounting rail or a aircraft seat stud

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174280A (en) * 1985-03-22 1986-10-29 Canon Kk Heat generating resistor
GB2174280B (en) * 1985-03-22 1989-03-30 Canon Kk Heat-generating resistor and heat-generating resistance element using same
GB2174877A (en) * 1985-03-23 1986-11-12 Canon Kk Thermal recording head
GB2174877B (en) * 1985-03-23 1989-03-15 Canon Kk Thermal recording head
EP0317256A2 (en) * 1987-11-20 1989-05-24 Junkosha Co. Ltd. A printed circuit substrate
EP0317256A3 (en) * 1987-11-20 1989-09-06 Junkosha Co. Ltd. A printed circuit substrate
WO2008084089A1 (en) * 2007-01-12 2008-07-17 Airbus Deutschland Gmbh Coating of an aircraft seat mounting rail or a aircraft seat stud

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