Electrical insulating laminated paper, process for producing the same 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: TAKIGAWA HIROSHI, KUWABARA HIDEMITSU, HATA RYOSUKE, TSUJIOKA TORU, KATAYAMA KATSUHIKO, YORITA JUN
Format: Patent
Sprache:eng
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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 mum 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.