CONDENSATION PRODUCTS BASED ON COLOPHONIUM MALEIC IMIDES

摘要

Condensation products based on colophonium maleic imides are obtained by A) reaction of 100 parts by weight of colophonium with 1 to 20 parts by weight of maleic anhydride at a temperature between 150 and 250 DEG C; B) reaction of the adduct (A) formed in step A with an organic diprimary amine at temperatures between 130 and 250 DEG C, in a molar ratio of anhydride groups to amino groups of 0.8 to 1.2:1; C) reaction of the condensation product (B) formed in step B with a polyalcohol of functionality 3 to 6 at temperatures between 230 and 300 DEG C, in a molar ratio of carboxylic groups to hydroxyl groups of 0.7 to 1.5:1.