Water-soluble insulating varnish

Details Water-soluble insulating varnish Water-soluble insulating varnish

1984-11-15

1986-03-18

Phynes, Lucille M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

525444, 525448, 528288, 528291, 528486, 528492, C08L 7700, C08L 7900

Patent

active

045769907

ABSTRACT:
An insulating varnish comprising water-soluble polyesters and which can be used as an enamel or protective coating for electric wires is disclosed. The insulating varnish is prepared by reacting an aromatic dicarboxylic acid component and a polyhydric alcohol component to produce a high molecular weight polyester resin, addition reacting a polybasic acid with the resulting polyester resin to obtain a carboxyl group-containing polyester resin and dissolving the resulting polyester resin in water using a basic compound.

REFERENCES:
patent: 4008195 (1977-02-01), Ishizuka et al.
patent: 4066593 (1978-01-01), Czajka et al.
patent: 4104221 (1978-08-01), Janssen et al.
patent: 4116941 (1978-09-01), Hanson
patent: 4130520 (1978-12-01), Thomas et al.
patent: 4375528 (1983-03-01), Lange
patent: 4429072 (1984-01-01), Reiter et al.
patent: 4439579 (1984-03-01), Reiter et al.

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