POLYIMIDE FILM AND METAL LAMINATE USING SAME

摘要

The present invention provides a polyimide film having no foaming during heating nor other problems, as well as a polyimide metal laminate in which the film and a metal layer have been laminated. The present invention relates to a polyimide film comprising a polyimide layer (b) and a polyimide layer (a) laminated in contact with the polyimide layer (b), wherein the surface of the polyimide layer (b) not in contact with the polyimide layer (a) has thermal adhesiveness, the surface of the polyimide layer (a) not in contact with the polyimide layer (b) does not have thermal adhesiveness, and the polyimide layer (a) comprises a polyimide obtained from a diamine component and a tetracarboxylic acid component containing 2,3,3',4'-biphenyl tetracarboxylic dianhydride.