| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayer polyimide film which can be laminated on a metal foil under a relatively mild condition, has excellent durability against a chlorine based solvent, can widely select adhesion condition by widely controlling a glass transition temperature and is durable to use at high temperature and to provide a metallic layer laminate using the same film. SOLUTION: The multilayer polyimide film is formed by integrally laminating a thin film polyimide (Y) having an imide unit comprising an aromatic tetra-carboxylic acid di-anhydrate residue and an aromatic diamine residue at least on one surface of a low thermal expansive base body polyimide (X) layer and changing and adjusting the composition of p-phenylene diamine and/or diamino diphenyl ether in such a manner that the glass transition temperature (Tg) of the thin layer polyimide (Y) exhibits a prescribed value in the range of 210-310°C. The metallic layer laminate uses the multilayer polyimide film. COPYRIGHT: (C)2009,JPO&INPIT |
