Process for producing aromatic polyamide-imide

Details Process for producing aromatic polyamide-imide Process for producing aromatic polyamide-imide

C - Chemistry, Metallurgy

08

G

402/222

C08G 73/14 (2006.01)

Patent

CA 1192343

ABSTRACT OF THE DISCLOSURE In a process for producing an aromatic polyamide-imide by polycondensation of an aromatic tricarboxylic acid and/or aromatic tricarboxylic anhydride and an aromatic diamine with heating in the presence of a dehydration catalyst, the improve- ment which comprises using a solvent containing sulfolane as a reaction medium.

425817

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