VOLTAGE-STABILIZED POLYMERIC COMPOSITIONS

Disclosed are polymeric compositions with improved electrical breakdown strength. The polymeric compositions contain a poly-a-olefin and a voltage-stabilizing agent, which comprises an organic carboxylic ester comprising at least one aromatic ring and from 1 to 2 carboxylic alkyl ester substituents....

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Bibliographische Detailangaben
Hauptverfasser:	PERSON, TIMOTHY J, WELSH, DEAN M, TOMER, VIVEK, BERNIUS, MARK T
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BASIC ELECTRIC ELEMENTS CABLES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CONDUCTORS ELECTRICITY INSULATORS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	Disclosed are polymeric compositions with improved electrical breakdown strength. The polymeric compositions contain a poly-a-olefin and a voltage-stabilizing agent, which comprises an organic carboxylic ester comprising at least one aromatic ring and from 1 to 2 carboxylic alkyl ester substituents. Alternatively, the voltage-stabilizing agent can comprise trioctyl trimellitate. The present polymeric compositions exhibit improved electrical breakdown strength when applied as an insulating and/or shielding layer for power cables. Cette invention concerne des compositions polymères ayant une résistance améliorée au claquage, lesdites compositions polymères contenant une a-polyoléfine et un agent stabilisateur de tension, qui comprend un ester carboxylique organique comprenant au moins un cycle aromatique et de 1 à 2 substituants de type ester d'alkyle carboxylique. En variante, l'agent stabilisateur de tension peut comprendre un trimellitate de trioctyle. Les présentes compositions polymères manifestent une résistance améliorée au claquage quand elles sont appliquées à titre de couche d'isolation et/ou de blindage pour câbles d'alimentation.