| 摘要 |
A urea- and uretdione-functional polyaddition compound having free, partially or totally blocked isocyanate groups and having the following structure: wherein the substituents are defined as follows: n: 1-20; R1 is R or a linear, branched or cyclic alkylene or phenylene radicals having 2-16 carbon atoms; R2, R3 are each H, R4 or a R4, R5 are each identical or different hydrocarbon radicals having 1-14 carbon atoms; prepared by reacting isophorone diisocyanate-uretdione with diamine mixtures comprising 1-60 mol % diprimary diamines, 1-98 mol % primary/secondary diamines and 1-98 mol % disecondary diamines.
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