| abstract |
(57) [Abstract] [Purpose] A polyimide resin having excellent heat resistance, high elasticity, and a coefficient of linear expansion suitable for reducing warpage and curl when used as a laminate with a copper foil. And to provide a polyimide film. [Structure] 3,3 ′, 4,4′-benzophenonetetracarboxylic dianhydride, pyromellitic dianhydride, paraphenylenediamine, diamine compound having one bending group in the main chain, and in the main chain To obtain a polyimide resin composed of a diamine compound having two or more bending groups, A polyimide film made of the polyimide resin was obtained. |