Procedure for the preparation of polyaducts. (Machine-translation by Google Translate, not legally binding)

摘要

Process for the preparation of high molecular weight crystalline polyadducts, crosslinked and having urethane groups, characterized by reacting hot, with formation of polyadduct A) weakly branched polyesters, provided with terminal hydroxyl groups and having an average molecular weight of about 1200 to about 10,000, structured on the basis of 98 to 90 mol% of the structural element of the formula ** (see formula) ** Y B) diisocianatos, For which, 0.9 equivalent to 1.1 equivalents of isocyanate groups are introduced per 1 equivalent of hydroxyl groups. (Machine-translation by Google Translate, not legally binding)