Composition especially for use as a capacitor film comprises a polymer (especially a thermoplastic polyester) and a material of high relative dielectric constant

A polymer film contains a material of high relative dielectric constant, the dielectric constant of the film (epsilonR) being greater than epsilonpolymer + 0.5 where epsilonpolymer is the relative dielectric constant of the starting polymer. An independent claim is also included for manufacture of t...

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Hauptverfasser: BURSCH, ANNEGRETE, KUHMANN, BODO, KLIESCH, HOLGER, HORA, FRANZ, FISCHER, INGO
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Sprache:eng ; ger
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creator BURSCH, ANNEGRETE
KUHMANN, BODO
KLIESCH, HOLGER
HORA, FRANZ
FISCHER, INGO
description A polymer film contains a material of high relative dielectric constant, the dielectric constant of the film (epsilonR) being greater than epsilonpolymer + 0.5 where epsilonpolymer is the relative dielectric constant of the starting polymer. An independent claim is also included for manufacture of the film by (co)extrusion, stretching and thermofixing. Eine Folie aus einem thermoplastischen Polymer, z. B. thermoplastischer Polyether wie PET und PEN, welche 5 bis 70 Gew.-% eines Materials mit hoher relativer Dielektrizitätskonstante, z. B. Bariumtitanat, enthält, eignet sich als Katalysatorfolie zur Herstellung von Katalysatoren mit verbesserter Kapazitätsausbeute. Für die relative Dielektrizitätskonstante Epsilon R der Folie gilt Epsilon R > Polymer + 0,5, mit Epsilon Polymer gleich relativer Dielektrizitätskonstante des Ausgangspolymers.
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subjects AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
BASIC ELECTRIC ELEMENTS
CAPACITORS
CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
CHEMISTRY
COMPOSITIONS BASED THEREON
ELECTRICITY
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
WORKING-UP
title Composition especially for use as a capacitor film comprises a polymer (especially a thermoplastic polyester) and a material of high relative dielectric constant
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