| 摘要 |
<p>In the production of polyadducts of epoxy cpds. having more than one epoxy gp. in the molecule by reacting the epoxy cpds with cpds. (I) suitable for polyaddition, as well as with salts of imidazoles (II) according to appln. P16451678, cpd. (I) is a polycarboxylic acid anhydride and the imidazole salt (II) is the salt if an imidazole cpd. with an aliphatic hydroxypolycarboxylic acid. The reaction mixture is cured at least 120 degrees C. (II) may be the salt of citric acid. The polyadduct obtained is used for impregnating and coating of electric motors.</p> |
