| 摘要 |
Provided is an imide group-containing compound solution, etc., having excellent long-term storage properties and comprising: an imide group-containing compound comprising a partially hydrolyzed polyimide molded article; a solvent; and a viscosity stabilizer. The imide group-containing compound solution, etc., includes: the imide group-containing compound comprising the partially hydrolyzed polyimide molded article; the solvent; and the viscosity stabilizer. In an infrared spectroscopy chart obtained when the imide group-containing compound is measured using infrared spectroscopy, the imide group-containing compound solution has: an absorption peak derived from an imide group at a wavelength of 1375 cm-1; an absorption peak derived from an amide group at a wavelength of 1600 cm-1; and an absorption peak derived from a carboxyl group at a wavelength of 1413 cm-1. The viscosity stabilizer is an orthocarboxylic ester and a chelating agent, or either of these. |
