Method of making electrical inductive devices for use in hermeti

Details Method of making electrical inductive devices for use in hermeti Method of making electrical inductive devices for use in hermeti

1985-04-08

1987-06-02

Page, Thurman K.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

174 1706, 174 17LF, 174 17GF, 336 15, 336177, 336213, 427116, 427120, 427178, 524 81, 524104, 528335, 528336, 528339, 528342, 528350, 528351, 528353, D02G 300, C08K 534, C08G 6926, H05K 506

Patent

active

046703420

ABSTRACT:
A method for making an electrical inductive device for use in hermetic atmospheres which incorporate refrigerants such as halogenated methane compositions, for example refrigerant R-22, monochlorodifluoromethane. The device may be a wound coil device formed of magnet wire, the enamel coating of which has resistance to blistering when exposed to refrigerants under saturated conditions at temperatures up to about 200.degree. or 210.degree. C. and above. The enamel coating composition or wire enamel is formed as the reaction product of 1,2,3,4-butanetetracarboxylic dianhydride, optionally with an aromatic dianhydride, and a diamine such as p,p'-methylenedianiline or p,p'-oxydianiline, in an organic solvent such as N-methyl-2-pyrrolidone.

REFERENCES:
patent: 2868159 (1959-01-01), Lit et al.
patent: 3607553 (1971-09-01), Fritzsche
patent: 3652500 (1972-03-01), Peterson
patent: 3663510 (1972-05-01), Peterson
patent: 3778411 (1973-12-01), Emerick et al.
patent: 3891601 (1975-06-01), Peterson et al.
patent: 3915997 (1975-10-01), Ladd
patent: 3925313 (1975-12-01), Kojima et al.
patent: 3952084 (1976-04-01), Edelman et al.
patent: 3964525 (1976-06-01), Arnold et al.
patent: 4004062 (1977-01-01), Peterson
patent: 4073788 (1978-02-01), Peterson
patent: 4107355 (1978-08-01), Merchant et al.
patent: 4145474 (1979-03-01), Kertscher et al.
patent: 4170684 (1979-10-01), Schmidt et al.
patent: 4208464 (1980-06-01), Ishizuka et al.

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