Hedman, Casella, Gibson & Costigan
Polyetheramideimide resins and electrical conductors insulated therewith
 Novel high molecular weight resins, useful for electrically insulating conductors, are prepared by polycondensing a mixture of anhydrides, and a diisocyanate and/or a diamine in an inert organic solvent, preferably in the presence of a catalytic amount of 2-methylimidazole. 
General Electric Company
Y C H H C C Y Y H H
Y10T C08G H01B H01B C08G C08G Y10T Y10T H01B H01B
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Otto S. Yue-Guey L.
Zamek Lee