| 摘要 |
<p>A dielectric film with improved dielectric strength, mechanical strength, high temperature utility, and moisture resistance is described comprising the reaction product of 1, 2, 3, 4 butane tetracarboxylic acid, a multifunctional amine of the formula: <IMAGE> and at least one diamine, the multifunctional amine constituting at least 5% of the total amine equivalents of the reactants. The polyimide dielectric film can be cast out of aqueous solution on a mold release surface.</p> |
