| abstract |
A process for the preparation of multifunctional polycarbodiimides used as crosslinking agents, wherein mono- and / or polyisocyanates are reacted in the presence of mono- and / or polyisocyanates having at least one further functional group and in the presence of a carbodiimide catalyst Next, the polycarbodiimide chain is terminated or chain extended to produce polycarbodiimide. 0-10% organic solvent and / or 0-30% plasticizer and / or 0-30% surface active component during, before or after the carbodiimide formation reaction and / or the capping reaction and / or the chain extension reaction Is added to. Moreover, this invention relates to the coating mixture in which polycarbodiimide is used as a crosslinking agent, and the hardened | cured material obtained by the said coating mixture. |