Corona-resistant wire enamel compositions and conductors insulat

Details Corona-resistant wire enamel compositions and conductors insulat Corona-resistant wire enamel compositions and conductors insulat

1983-07-25

1985-08-27

Kittle, John

Coating processes

Electrical product produced

Wire conductor

427418, 427120, 428372, 428383, 428384, 174120SR, B05D 512, B32B 900

Patent

active

045378045

ABSTRACT:
A corona-resistant wire enamel composition is described comprising a polyimide, polyamide, polyester, polyamideimide, polyesterimide, or polyetherimide resin and from about 1% to about 35% by weight of dispersed alumina particles of a finite size less than about 0.1 micron, the alumina particles being dispersed therein by high shear mixing. A method of providing corona resistant one and two-stage insulations for an electrical conductor employing the above compositions and an electrical conductor insulated with a one or two-stage coating of the wire enamel compositions are also disclosed.

REFERENCES:
patent: 2671069 (1954-03-01), Savage
patent: 3361593 (1968-01-01), Sattler et al.
patent: 3742084 (1973-06-01), Olyphant, Jr. et al.
patent: 3906139 (1975-09-01), Hiraoka et al.
patent: 3962531 (1976-06-01), Lever et al.
patent: 4102851 (1978-07-01), Luck et al.
patent: 4342814 (1982-08-01), Usuki et al.

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