GB640465A - Methods of making electrically resistive bodies from finely divided material - Google Patents

Methods of making electrically resistive bodies from finely divided material

Info

Publication number
GB640465A
GB640465A GB19262/47A GB1926247A GB640465A GB 640465 A GB640465 A GB 640465A GB 19262/47 A GB19262/47 A GB 19262/47A GB 1926247 A GB1926247 A GB 1926247A GB 640465 A GB640465 A GB 640465A
Authority
GB
United Kingdom
Prior art keywords
butyl
finely divided
electrically resistive
plasticizer
volatile solvent
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
GB19262/47A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB640465A publication Critical patent/GB640465A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/1315—Non-ceramic binders
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • 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
    • H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
    • H01B1/08—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances oxides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/447—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from acrylic compounds
    • 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
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/30—Apparatus or processes specially adapted for manufacturing resistors adapted for baking
    • 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
    • H01C7/001—Mass resistors
    • 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
    • H01C7/04—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 negative 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
    • H01C7/04—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 negative temperature coefficient
    • H01C7/042—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 negative temperature coefficient mainly consisting of inorganic non-metallic substances
    • H01C7/043—Oxides or oxidic compounds

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Thermistors And Varistors (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)

Abstract

Polymeric methacrylic acid esters, e.g. methyl, butyl or isobutyl methacrylate, a plasticizer and a volatile solvent are used as temporary binders for finely divided resistive material in the preparation of electrically resistive bodies, including thermistors. The resistance material, e.g. Mn, Ni, Co or Cu oxide is made into a paste with the polymer, a plasticizer, e.g. di-methyl phthalate, butyl phthalyl butyl glycollate, di-butyl sebacate, di-butyl adipate, tri-ethylene glycol di-2-ethyl butyrate or a wax, and a volatile solvent, e.g. acetone, ethyl acetate, benzene, xylene, "Solvesso No. 2" (Registered Trade Mark), acetylene tetrachloride or a mixture of ethylene dichloride and carbon tetra-chloride, thoroughly mixed, dried and granulated. The granules are moulded, stamped or extruded into coherent disc, cylinder or sheet form, then heated to decompose and remove the binder, firstly by radiant heat then in an oven to a maximum of 600 DEG C., and finally sintered at 600-1450 DEG C. on a plate of zirconium silicate with aluminium oxide powder between the articles to prevent sticking.
GB19262/47A 1942-10-22 1947-07-18 Methods of making electrically resistive bodies from finely divided material Expired GB640465A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US462944A US2358211A (en) 1942-10-22 1942-10-22 Method of forming resistors and the like

Publications (1)

Publication Number Publication Date
GB640465A true GB640465A (en) 1950-07-19

Family

ID=23838319

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19262/47A Expired GB640465A (en) 1942-10-22 1947-07-18 Methods of making electrically resistive bodies from finely divided material

Country Status (6)

Country Link
US (1) US2358211A (en)
BE (1) BE475547A (en)
CH (1) CH267201A (en)
FR (1) FR979047A (en)
GB (1) GB640465A (en)
NL (1) NL91385C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5660878A (en) * 1991-02-06 1997-08-26 Commissariat A L'energie Atomique Process for the reduction of breakdown risks of the insulant of high voltage cable and lines during their aging

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2683836A (en) * 1947-03-10 1954-07-13 Gen Electric Electric discharge device construction
US2552640A (en) * 1947-07-05 1951-05-15 Bell Telephone Labor Inc Oxide resistors and method of making them
US2674583A (en) * 1949-12-23 1954-04-06 Bell Telephone Labor Inc High temperature coefficient resistors and methods of making them
US2966719A (en) * 1954-06-15 1961-01-03 American Lava Corp Manufacture of ceramics
US2847314A (en) * 1955-06-02 1958-08-12 Bell Telephone Labor Inc Method for making ceramic articles
US3061501A (en) * 1957-01-11 1962-10-30 Servel Inc Production of electrical resistor elements
US3015633A (en) * 1957-01-23 1962-01-02 Csf Manufacture of thermistors
NL97747C (en) * 1957-05-24 1900-01-01
US2937354A (en) * 1957-08-02 1960-05-17 Bendix Aviat Corp Thermally-sensitive resistor
US2988456A (en) * 1958-02-14 1961-06-13 Thompson Ramo Wooldridge Inc Slip-cast ceramic base optical mirrors
US3078550A (en) * 1959-06-25 1963-02-26 Specialties Dev Corp Method of adjusting the resistance of thermistor elements
US3345596A (en) * 1965-11-08 1967-10-03 Ibm Hygrometer and method of fabrication
DE2112396C2 (en) * 1970-03-17 1983-05-05 Lucas Industries Ltd., Birmingham, West Midlands Process for the production of products from silicon nitride with the aid of a dispersed organic binder
US3808678A (en) * 1972-08-16 1974-05-07 Matsushita Electric Ind Co Ltd Method of making pressure-sensitive resistor element
US3981075A (en) * 1973-11-14 1976-09-21 Danfoss A/S Method of making high-duty PTC-resistor
AT335570B (en) * 1973-11-14 1977-03-25 Danfoss As HEAVY DUTY PTC RESISTOR AND METHOD FOR MANUFACTURING IT
US4257904A (en) * 1974-12-30 1981-03-24 International Business Machines Corp. Dielectric glass coating composition containing polymethylmethacrylate fugative binder
US4086467A (en) * 1976-07-19 1978-04-25 Texas Instruments Incorporated Electronic heater for high voltage applications
US5800611A (en) * 1997-09-08 1998-09-01 Christensen; Howard Method for making large area single crystal silicon sheets

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5660878A (en) * 1991-02-06 1997-08-26 Commissariat A L'energie Atomique Process for the reduction of breakdown risks of the insulant of high voltage cable and lines during their aging

Also Published As

Publication number Publication date
CH267201A (en) 1950-03-15
BE475547A (en) 1947-09-30
US2358211A (en) 1944-09-12
NL91385C (en)
FR979047A (en) 1951-04-20

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