| 摘要 |
<p>Polyisocyanates for lacquers, characterised by the simultaneous presence of from 0.5 to 15 % by weight of triazine units, of from 5 to 20 % by weight of isocyanate groups in blocked form and of from 0 to 30 % by weight of other chemically incorporated urethane groups different from the blocked isocyanate groups, a process for preparing these lacquer polyisocyanates by reacting a) organic diisocyanates with b) blocking agents for isocyanate groups, c) amino-containing triazines and optionally d) organic polyhydroxy compounds of molecular weight 62 to 3,000, and the use of the lacquer polyisocyanates combined with organic polyhydroxy compounds as stoving enamel or for preparing a stoving enamel.</p> |
