Wire enamel based on amide-imide hydantoin polymers

Details Wire enamel based on amide-imide hydantoin polymers Wire enamel based on amide-imide hydantoin polymers

1975-05-06

1977-05-10

Lieberman, Allan

Stock material or miscellaneous articles

Composite

Of metal

260 302, 260 326NT, 260 334P, 260 336R, 260 332R, 260 78A, 260 78TF, 428474, C08K 501, C08K 513, C08L 7908, H01B 330

Patent

active

RE0292133

ABSTRACT:
Amide-imide-hydantoin polymers are prepared from trimellitic anhydride, a diisocyanate and reacting the isocyanate terminated amide-imide with a glycine derivative of the formula ##STR1## WHERE R is aromatic, R.sub.1 are the same or different and are hydrogen or alkyl, R.sub.2 is dialkylamino, alkoxy or aroxy and x is an integer from 2 to 4. A portion of the trimellitic anhydride can be replaced by a dicarboxylic acid, a dianhydride or a tribasic acid. The products are soluble in cresol type solvent.

REFERENCES:
patent: 3314923 (1967-07-01), Muller
patent: 3345334 (1968-10-01), Angelo
patent: 3489696 (1970-01-01), Miller
patent: 3555113 (1971-01-01), Sattler
patent: 3562217 (1971-02-01), Zalewski
patent: 3578639 (1971-05-01), Schaffer
patent: 3705874 (1972-12-01), Merten
patent: 3843587 (1974-10-01), Keating et al.

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