Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1986-04-02
1987-04-21
Kendell, Lorraine T.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
174110N, 174110PM, 428375, 4284735, 4284744, B32B 1500, H01B 700
Patent
active
046596224
ABSTRACT:
An essentially linear resin having a plurality of amide, imide and ester groups therein comprising the condensation product of at least one polycarboxylic acid five member ring-forming reactant, at least one ethylenically unsaturated polycarboxylic acid five or six member ring lactam-forming reactant, at least one polyfunctional hydroxy compound, at least one difunctional amino five or six member ring forming reactant, at least one polycarboxylic acid reactant having no more than two carboxylic acid ester forming radicals, and at least one polycarboxylic acid reactant having two or more carboxylic acid ester forming radicals with at least two of the radicals in the 1,2 position relative to each other. The method of forming a solution of a prepolymer having a plurality of amide, imide and ester groups therein in cresylic acid or glycol ether solvents and reacting the same with at least one ethylenically unsaturated polycarboxylic acid five or six member ring forming reactant at elevated temperatures. A tinnable and solderable magnet wire having a thin, flexible, tough, thermally stable continuous coating on a conductor which also has a high degree of thermolability (removability in a solder bath) in a solder bath.
REFERENCES:
patent: 3793250 (1974-02-01), Schmidt et al.
patent: 3917892 (1975-11-01), Kawaguchi et al.
patent: 3922465 (1975-11-01), Kawaguchi et al.
patent: 4115342 (1978-09-01), Shelby et al.
patent: 4141886 (1979-02-01), Sollner et al.
patent: 4319006 (1982-03-01), Yamada et al.
Barta Donald J.
Sollner George H.
Kendell Lorraine T.
Phelps Dodge Industries, Inc.
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