Dielectric films from water soluble polyimides

Details Dielectric films from water soluble polyimides Dielectric films from water soluble polyimides

C - Chemistry, Metallurgy

08

G

18/70

C08G 73/10 (2006.01) C08J 5/18 (2006.01)

Patent

CA 1209765

Dielectric Films from Water Soluble Polyimides Abstract 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 con- stituting 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.

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