Dielectric liquids
AssigneeMinnesota Mining and Manufacturing Company
InventorRichard M. Flynn
Life of this patent
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Abstract
A dielectric liquid is provided comprising (a) a fluorinated, inert liquid, or a mixture of fluorinated, inert liquids and (b) a fluorine-containing, nonionic sulfonate ester or sulfonamide, such that the dielectric liquid has a dielectric constant intermediate or between that of component (a) and component (b) and the dielectric constant represents the relative amounts of the relatively lower dielectric constant of the fluorinated, inert liquid per se and the relatively higher dielectric constant of the sulfonate ester or sulfonamide per se and components (a) and (b) of the dielectric liquid are miscible with one another over the operating temperature range of the electrical device employing the dielectric liquid.
Claims20
A dielectric liquid comprising a homogeneous mixture of (a) a fluorinated, inert liquid or a mixture of fluorinated, inert liquids, and (b) a fluorine-containing, nonionic sulfonate ester or sulfonamide.
An electrical device containing as a component a dielectric liquid comprising a homogeneous mixture of (a) a fluorinated, inert liquid, or a mixture of such fluorinated, inert liquids, and (b) a fluorine-containing, nonionic sulfonate ester or sulfonamide, wherein the dielectric liquid has a boiling point above the operating temperature of the electrical device.
Dependencies are inferred from the claim text.