Method of using nitrogen-containing polyester resins as epoxy re

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156 53, 427120, 427386, 428363, 428241, 528291, B32B 516, B05D 512, H01B 1306, B32B 1900

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042659663

ABSTRACT:
High-voltage insulation in which mica tape employing a binder resin is used for wrapping around electrical apparatus, and the wrapped apparatus is impregnated with a heat-setting epoxy resin. The binder resin for the mica tape is a polyester containing a tertiary-bound nitrogen which is effective as an adhesive for the tape and also as an accelerator for the epoxy resin.

REFERENCES:
patent: 3324033 (1967-06-01), Knapp
patent: 3369947 (1968-02-01), Mertens et al.
patent: 3470045 (1969-09-01), Bronnvall et al.
patent: 3647611 (1972-03-01), Mertens
patent: 3652501 (1972-03-01), Albers et al.
patent: 3983289 (1976-09-01), Nishizaki et al.
patent: 3998983 (1976-12-01), Smith

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