| abstract |
An object of the present invention is to provide a thermosetting resin composition that is excellent in heat resistance, flame retardancy and mechanical properties when formed into a coating film, and a thermosetting resin composition that is also excellent in storage stability. A thermosetting resin composition comprising a polyimide resin (A), boric acid and / or a boric acid ester (B), and an alkoxylated melamine resin (C). The polyimide resin (A) is preferably a polyimide represented by the following general formula (1) or the like, and boric acid and / or borate ester (B) is preferably boric acid or a trialkyl borate ester, and an alkoxylated melamine resin (C ) Is methoxylated methylol melamine. [Selection figure] None |