| 摘要 |
PURPOSE:To obtain a polyamide-imide resin insulated wire, of which adhesion and abrasion resistance and flexibility are improved. CONSTITUTION:A conductor is coated with the coating obtained by adding 0.05-1.0 parts by weight of trialkylamine relative to 100 parts by weight of the resin of the polyamide-imide resin solution obtained by reacting tricalboxylic acid anhydride and di-isocyanate and/or di-amine in the polar solvents, directly or through other insulating material layer, and the coated conductor is burned. Polyamide-imide resin insulated wire, in which the excellent heat resistance characteristic of the polyamide-imide resin is maintained and the adhesion to a conductor and flexibility are improved remarkably and abrasion resistance is improved, is thereby obtained. |
