Foley & Lardner LLP
Polyamide-imide resin insulating coating material, insulated wire and method of making the same
A polyamide-imide resin insulating coating material, which is obtained by reacting an isocyanate component with an acid component, has a main solvent component of γ-butyrolactone. In the coating material, a total compounding ratio of 4,4′-diphenylmethane diisocyanate (MDI) and trimellitic anhydride (TMA) is 85 to 98 mol %, where the total compounding ratio is given by averaging a compounding ratio of MDI to the isocyanate component and a compounding ration of TMA to the acid component.
Hitachi Metals, Ltd.
B Y H H Y Y
B05D Y10T H01B H01B Y10T Y10T
inventional additional inventional inventional additional additional
Hideyuki Yuzo
Kikuchi Yukimori