| abstract |
The present disclosure is directed to a polyimide metal clad laminate. The metal clad laminate has a metal foil and a polyimide layer. The polyimide layer having a polyimide derived from 80 to 90 mole % 3,3',4,4'-biphenyl tetracarboxylic dianhydride, 10 to 20 mole % 4,4'-oxydiphthalic anhydride and 100 mole % 2,2'-bis(trifluoromethyl) benzidine. The polyimide metal clad laminate does not have an adhesive layer between the metal foil and the polyimide layer. |