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    • 1. 发明授权
    • Insulated wire
    • 绝缘电线
    • US4505980A
    • 1985-03-19
    • US439199
    • 1982-11-04
    • Hiroshi NishizawaYoshiyuki MukoyamaShozo KasaiYasunori Okada
    • Hiroshi NishizawaYoshiyuki MukoyamaShozo KasaiYasunori Okada
    • H01B7/29C08G73/14H01B3/30B32B27/00H01B7/00
    • H01B3/306C08G73/14Y10T428/2947
    • An insulated wire having excellent heat resistance, abrasion resistance and flexibility can be prepared by coating on an electric conductor directly or via another insulating material a polyamide-imide resin composition prepared by reacting an aromatic diisocyanate and a tricarboxylic acid anhydride in the presence of a basic solvent while adjusting the resin content at 40% by weight or more, and adding to the reaction system a lactam in an amount of 0.1 to 1.0 mole per mole of the aromatic diisocyanate, and if necessary, an alcohol and/or an oxime in an amount of 0.01 to 0.5 mole per mole of the aromatic diisocyanate before, during or after the above-mentioned reaction to mask terminal functional groups and to make the reduced viscosity of the composition 0.1 to 0.27, and baking the resin composition.
    • 具有优异的耐热性,耐磨性和柔韧性的绝缘线可以通过在电导体上直接或通过另一种绝缘材料涂覆聚酰胺酰亚胺树脂组合物来制备,所述聚酰胺酰亚胺树脂组合物通过芳基二异氰酸酯和三羧酸酐在碱存在下反应制备 溶剂,同时将树脂含量调节至40重量%以上,并且向反应体系中加入每摩尔芳族二异氰酸酯为0.1至1.0摩尔量的内酰胺,如果需要,将其中的醇和/或肟 在上述掩蔽末端官能团的反应之前,期间或之后,使组合物的比浓对数为0.1〜0.27,并将该树脂组合物烘烤,每摩尔芳族二异氰酸酯的量为0.01〜0.5摩尔。