NOVEL IMIDAZOLINE-ISOCYANURIC ACID ADDUCT, SYNTHESIS OF SAID ADDUCT, AND CURING OF POLYEPOXY RESIN CONTAINING SAID ADDUCT AS ESSENTIAL COMPONENT

摘要

NEW MATERIAL:The imidazoline-isocyanuric acid adduct of formula I (R2 is alkyl or aryl; R4 is H or methyl). EXAMPLE:2-Undecylimidazoline-isocyanuric acid adduct. USE:A hardener for epoxy resin for the production of epoxy resin powder coating having excellent storage stability, insulation property, heat-resistance, low- temperature curability, yellowing resistance and self-extinguishing property, and a cure accelerator or co-hardener of an acid anhydride and dicyandiamide. PREPARATION:The compound of formula I can be produced easily in high yield by reacting isocyanuric acid with imidazoline of formula II in hot water at a molar ratio of about 1:1, and filtering the crystal precipitated by cooling.