| abstract |
The invention relates to compounds made of (cyclo)aliphatic diisocyanates, produced according to a multi-stage method (phosgene-free production), which comprises the conversion of (cyclo)aliphatic diamines into the corresponding (cyclo)alkylene biscarbamates and the thermal cleavage of the latter into the (cyclo)alkylene diisocyanates and alcohol (urea route), and aromatic acid halides, and to the use thereof. |