| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a non-thermoplastic polyimide film whose precursor solution has high storage stability, and which develops high adhesivity without expensive surface treatment. <P>SOLUTION: The method for manufacturing a polyimide film comprising a non-thermoplastic polyimide having a block component originated from a thermoplastic polyimide includes: (A) a step of forming a prepolymer having an acid anhydride on the terminal in an organic polar solvent; (B) a step of using the prepolymer, an acid dianhydride component and a diamine component so as to be substantially equimolar to synthesize a polyimide precursor solution, and (C) a step of casting a film-forming dope liquid containing the polyimide precursor solution to imidize the precursor, wherein the diamine component and the acid dianhydride component used in the (A) step are selected so that a polyimide obtained by equimolarly reacting these make the thermoplastic polyimide, and the polyimide precursor is a precursor of the non-thermoplastic polyimide. <P>COPYRIGHT: (C)2013,JPO&INPIT |
