Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1982-11-04
1985-03-19
Kendell, Lorraine T.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
174110N, 174120SR, 427118, 427120, B32B 2700, H01B 700
Patent
active
045059802
ABSTRACT:
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.
REFERENCES:
patent: 3493413 (1970-02-01), Olson et al.
patent: 3528852 (1970-09-01), Olson et al.
patent: 4294952 (1981-10-01), Mukoyama et al.
patent: 4378407 (1983-03-01), Yamamoto et al.
Kasai Shozo
Mukoyama Yoshiyuki
Nishizawa Hiroshi
Okada Yasunori
Hitachi Chemical Co. Ltd.
Kendell Lorraine T.
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