Voltage-stabilized polymeric compositions
AssigneeDow Global Technologies LLC
InventorsVivek Tomer, Timothy J. Person, Dean M. Welsh, Mark T. Bernius
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Abstract
Disclosed are polymeric compositions with improved electrical breakdown strength. The polymeric compositions contain a poly-α-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.
Claims10
A polymeric composition, comprising:
- a poly-α-olefin polymer;
- and
- an organic carboxylic ester comprising at least one aromatic ring and from 1 to 2 carboxylic alkyl ester substituents.
A coated conductor, comprising:
- a conductor;
- and
- a dielectric insulating layer comprising:
- a poly-α-olefin polymer, and
- trioctyl trimellitate,
- wherein said trioctyl trimellitate is present at a concentration ranging from 0.1 to 1 weight percent, based on the combined weight of said poly-α-olefin polymer and said trioctyl trimellitate.
Dependencies are inferred from the claim text.