Insulating coating material and insulated wire using the same
AssigneesHitachi Metals, Ltd., Hitachi Magnet Wire Corp.
InventorsYasuhiro Funayama, Hideyuki Kikuchi, Yuki Honda
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Abstract
An insulating coating material includes a polyamide-imide resin insulating coating material, and surface-treated inorganic fine particles dispersed in the polyamide-imide resin insulating coating material. A viscosity measured by an E-type viscometer is 1000 to 4000 mPa·s at 30° C. and at a shear rate of 200 s−1 and 4000 to 12000 mPa·s at 30° C. and at a shear rate of 1 s−1. An insulated wire includes a rectangular conductor, and an insulating layer formed on the rectangular conductor and including the insulating coating material.
Claims5
An insulating coating material, comprising:
- a polyamide-imide resin insulating coating material;
- and
- surface-treated inorganic fine particles dispersed in the polyamide-imide resin insulating coating material;
- wherein the viscosity of the insulating coating material measured by an E-type viscometer is 1000 to 4000 mPa·s at 30° C. and at a shear rate of 200 s−1 and 4000 to 12000 mPa·s at 30° C. and at a shear rate of 1 s−1;
- and
- wherein the inorganic fine particles comprise a silica fine particle and wherein the Inorganic fine particles are surface-treated with silicone oil having a molecule weight of 2000 to 25000.
Dependencies are inferred from the claim text.