Process for the preparation of polyamide-imide resins and their uses.

摘要

Process for the manufacture of polyamide-imide resins by condensation of an aromatic diisocyanate with an aromatic polycarboxylic acid containing at least three carboxyl functional groups or a corresponding anhydride. The condensation is performed in a melt phase. Use of these resins especially for the manufacture of varnishes. <IMAGE>