AQUEOUS SOLVENT SOLUTION OF COMPOUND CONTAINING IMIDE GROUP AND METHOD FOR PRODUCING OF AQUEOUS SOLVENT SOLUTION OF COMPOUND CONTAINING IMIDE GROUP

摘要

An aqueous solvent solution of an imide group-containing compound which contains an imide group-containing compound produced by partial hydrolysis of a polyimide molded article is provided.;Provided are an aqueous solvent solution of an imide group-containing compound and a method for producing the same including steps of: (1) preparing a polyimide molded article by cutting the polyimide molded article into a predetermined size, (2) hydrolyzing the polyimide molded article at temperature conditions of 50 to 100° C. in the presence of water and a basic compound to have a crude imide group-containing compound in solution state, (3) purifying the crude imide group-containing compound in solution state to have an imide group-containing compound in semi-solid state, and (4) dissolving the imide group-containing compound in semi-solid state, an aqueous solvent, and a predetermined alkali compound to have a predetermined aqueous solvent solution.