| abstract |
The present invention relates to (a) 3,3 ', 4,4'-biphenyltetracarboxylic dianhydride (3,3', 4,4'-biphenyltetracarboxylic acid dianhydride, BPDA), and pyromellitic dianhydride at least one aromatic tetracarboxylic acid dianhydride including pyromellitic dianhydride (PMDA); (b) one or more aromatic diamines; (c) an organic solvent; And (d) a polyamic acid solution containing an inorganic filler, a polyimide resin prepared by imidating the polyamic acid solution, a flexible metal foil laminate using the polyimide resin, and a flexible metal foil laminate. will be.n n n n Flexible Metal Foil Laminate, Polyimide |