Electrical insulating laminated paper, process for producing the same and oil-impregnated power cable containing the same

Electrical insulating laminated paper, process for producing the same and oil-impregnated power cable containing the same

Disclosed is an electrical insulating laminated paper prepared by a process which comprises the steps of melt-extruding a polyolefin resin as a binder onto one or two sheets of a kraft insulating paper by means of a extruder to obtain a laminated paper, and calendering or supercalendering the lamina...

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Bibliographische Detailangaben
Hauptverfasser: TSUJIOKA, TORU, KUWABARA, HIDEMITSU, YORITA, JUN, TAKIGAWA, HIROSHI, KATAYAMA, KATSUHIKO, HATA, RYOSUKE
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
CABLES
CONDUCTORS
ELECTRICITY
INSULATORS
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
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Beschreibung
Zusammenfassung:Disclosed is an electrical insulating laminated paper prepared by a process which comprises the steps of melt-extruding a polyolefin resin as a binder onto one or two sheets of a kraft insulating paper by means of a extruder to obtain a laminated paper, and calendering or supercalendering the laminated paper so that the total thickness thereof is from 30 to 200 mu m and the proportion of a polymer comprising the polyolefin resin is from 40 to 90%. The laminated paper is excellent in dielectric properties, dielectric strength, and mechanical properties such as adhesive strength.