| 摘要 |
The invention relates to a method for producing solid, fine-particle polyisocyanates containing urea groups. According to said method, organic polyisocyanates which do not contain any urea groups are reacted with water in an aqueous emulsion in the presence of an emulsion and dispersion-stabilizing compound in the form of an inorganic solid which is finally dispersed in the liquid phase and optionally, the usual emulsifiers, dispersion stabilizers and/or the usual catalysts. |
