Blocked polyisocyanates, a process for their preparation, and their use

摘要

Partially or totally blocked polyisocyanates comprising physical mixtures of individual a) urethane-functional and/or b) biuret-functional and/or c) isocyanurate-functional aliphatic and (cyclo)aliphatic and/or cycloaliphatic diisocyanate whose isocyanate groups are blocked in such a way that there is from 0.5 to 1 mol, preferably from 0.8 to 1 mol, of 1,2,4-triazole per isocyanate equivalent.