METHOD FOR PRODUCING A POLYAMIDE FILM, A POLYIMIDE COATING COMPOSITION, A POLYIMIDE ELECTRIC INSULATING MATERIAL OR HEAT RESISTANT POLYIMIDE MOLDED ARTICLES FROM PARTIAL HYDROLYSIS OF A POLYIMIDE MOLDED ARTICLE

摘要

Provided by the invention is a compound containing an imido group that is obtained by partial hydrolysis of a polyimide molded article, in which the compound has an absorption peak derived from an imido group at wave number of 1375 cm -1 , an absorption peak derived from an amide group at wave number of 1600 cm -1 , and an absorption peak derived from a carboxyl group at wave number of 1413 cm -1 in the IR spectrum chart obtained by IR spectroscopic measurement.