FLEXIBLE METAL-CLAD LAMINATE PLATE

摘要

Disclosed is a flexible metal-clad laminate plate with good appearance which can be manufactured by a metalizing method such as evaporation coating, sputtering or plating. A flexible metal-clad laminate plate having a polyimide film. The polyamide film is produced by reacting an aromatic diamine with an aromatic acid dianhydride to produce a polyamide acid and then imidizing the polyamide. The polyamide film has (A) an inflexion point of the storage modulus falling within the range from 270 to 340°C, (B) the peak top of tand (which is a value given by dividing the loss modulus by the storage modulus) falling within the range from 320 to 410°C, (C) the storage modulus at 400°C falling within the range from 0.5 to 1.5 GPa, and (D) the storage modulus a₁ (GPa) at the inflexion point and the storage modulus a₂ (GPa) at 400°C both falling within the range satisfying the following formula (1). Formula (1): 85 = [(a₁-a₂₎/a₁]x100 = 70