| 摘要 |
A polyamide acid which comprises (A) a polyamide acid produced by reacting a tetracarboxylic acid anhydride comprising 3,3',4,4'-biphenyltetracarboxylic acid dianhydride with a diamine compound comprising 4,4'-oxydianiline, (B) a conductivity-imparting agent and (C) an imidization-enhancing agent and in which the conductivity-imparting agent is dispersed is used as a coating solution. The coating solution is applied onto a support, and the resulting coating film is dried and imidized. In this manner, an electrically conductive polyimide film having a desired electric resistivity and good mechanical properties can be produced with good productivity. |
