Foley & Lardner LLP
Method of making partial-discharge-resistant insulated wire
A partial-discharge-resistant insulating varnish has a polyamide-imide enamel varnish and an organo-silica sol that are dispersed in a solvent. The solvent has 50 to 100% by weight of γ-butyrolactone. An insulated wire has a conductor, and a partial-discharge-resistant insulation coating film formed on the surface of the conductor. The partial-discharge-resistant insulation coating film is made of the partial-discharge-resistant insulating varnish.
HITACHI METALS, LTD.
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Y10T Y10T H01B C09D H01B C08K C09D H01B C09D C09D Y10T C08K
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Yuzo Hideyuki
Yukimori Kikuchi