GB708755A - Method for producing insulating layers - Google Patents

Method for producing insulating layers

Info

Publication number
GB708755A
GB708755A GB24915/51A GB2491551A GB708755A GB 708755 A GB708755 A GB 708755A GB 24915/51 A GB24915/51 A GB 24915/51A GB 2491551 A GB2491551 A GB 2491551A GB 708755 A GB708755 A GB 708755A
Authority
GB
United Kingdom
Prior art keywords
spiral
collodion
layer
layer containing
insulating layers
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
GB24915/51A
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta GmbH
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 Loewe Opta GmbH filed Critical Loewe Opta GmbH
Publication of GB708755A publication Critical patent/GB708755A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/10Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances metallic oxides

Abstract

708,755. Electrophoresis. LOEWE OPTA AKT.-GES. Oct. 25, 1951 [Oct. 28, 1950], No. 24915/51. Class 41. [Also in Group XI] In a method of producing insulating layers on a heating spiral for radio and cathode ray tubes, the article is first, coated electrophoretically with a layer containing no binding agent, and then with a layer containing a binding agent, the layer comprising an oxide of aluminium, magnesium or beryllium. This may be done by treating the spiral electrophoretically in a bath containing the oxide, collodion in an organic solvent such as amyl acetate, acetone, or isopropyl alcohol, and a small amount of a solution of aluminium nitrate in methanol. The spiral is used first as cathode to form the first layer without collodion, subsequently the spiral being used as anode, whereby the second layer containing collodion is formed.
GB24915/51A 1950-10-28 1951-10-25 Method for producing insulating layers Expired GB708755A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE708755X 1950-10-28

Publications (1)

Publication Number Publication Date
GB708755A true GB708755A (en) 1954-05-12

Family

ID=6617680

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24915/51A Expired GB708755A (en) 1950-10-28 1951-10-25 Method for producing insulating layers

Country Status (1)

Country Link
GB (1) GB708755A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3037923A (en) * 1957-12-26 1962-06-05 Sylvania Electric Prod Process for electrophoretically coating a metal with particulate carbon material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3037923A (en) * 1957-12-26 1962-06-05 Sylvania Electric Prod Process for electrophoretically coating a metal with particulate carbon material

Similar Documents

Publication Publication Date Title
GB708755A (en) Method for producing insulating layers
ES260988A1 (en) Film-forming metal capacitors
GB882815A (en) Electrical capacitor
GB863414A (en) Improvements in or relating to electrical components
CA534658A (en) Indirectly heated cathode with high-voltage insulation of filament
CA625214A (en) Method of coating aluminium articles with insulating oxide layers
GB709955A (en) Method of producing insulating layers on electric heating resistances
AU258420B2 (en) Method of manufacturing of electron tubes
AU275766B2 (en) Improvements in or relating to methods of coating a filament for an indirectly - heated cathode with a black - radiating insudirectly - heated cathode with a black - radiating insulating layer, cathodes comprising such a filament and electric dicharge tubes provided with such a cathode
ES389292A1 (en) Process for the manufacture of optically active bicycloalkane derivatives
AU1488962A (en) Method of manufacturing of electron tubes
AU164873B2 (en) Indirectly heated cathode structure and method of assembly
CH423001A (en) Process for covering a filament for an indirectly heated cathode with a dark-colored insulating layer, filament produced according to this process and use of such filament for the cathode of an electrical discharge tube
AU3352263A (en) Improvements in or relating to methods of coating a filament for an indirectly - heated cathode with a black - radiating insudirectly - heated cathode with a black - radiating insulating layer, cathodes comprising such a filament and electric dicharge tubes provided with such a cathode
CA555305A (en) Fluorescent coating composition and process employing boric acid
AU3058263A (en) Method of producing electrical capacitors with semiconducting layer
GB954042A (en) Improvements in or relating to methods of manufacturing cathode-ray tubes
ES242458A1 (en) Improvements introduced in the process of manufacturing eletrolytic condensers. (Machine-translation by Google Translate, not legally binding)
CA666482A (en) Method of manufacturing nickel supports for oxide cathodes, and cathodes provided with such supports
CA602040A (en) Method of making electron tubes
CA623117A (en) Method of relatively fixing metallic objects, more particularly electrodes for cathode-ray tubes
GB807789A (en) Protective coatings
AU276255B2 (en) Method of manufacturing cathodes for electron tubes
CA534630A (en) Method of improving dyeing properties of shaped polyvinyl alcohol articles
AU233373B2 (en) Improvements in or relating toa method of producing tubular material forthe support ofthe emissive layer ofa cathode