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US 4,538,207 AGranted
Dielectric fluid for a capacitor
AssigneeEmhart Industries, Inc.
InventorVandos Shedigian
Life of this patent
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Abstract
The gas absorption ability of a phthalate ester is improved by the addition of an alkylated benzene with 18 carbons outside the benzene ring. This also improves the swellability of polypropylene film capacitors.
Claims4
In a paper, paper-film capacitor, a dielectric fluid including a mixture of dioctyl phthalate and branched alkylated benzene with 18 carbons outside the benzene ring.
Dependencies are inferred from the claim text.