Polyurethan-Zusammensetzungen mit stabiler Reaktivität

摘要

The invention concerns polyurethane compositions in which at least some of the fillers, preferably at least 30 wt % thereof, are surface-treated. The polyurethane compositions have highly stable reactivity during storage before application owing to the addition of pyrogenic silicic acids thereto. The compositions can either contain catalysts or be catalyst-free. This is particularly advantageous if the use techniques demand a long potlife.