CURING ON DEMAND POLYURETHANE COMPOSITION SUITABLE FOR THE PREPARATION OF COATINGS OR FLOORINGS

摘要

The present invention relates to three component polyurethane compositions consisting of a polyisocyanate component (C1) and a hardener component (C2) and an accelerator component (C3). The hardener component (C2) comprises at least a derivative of aspartic acid and the accelerator component (C3) comprises at least water which is bound to a carrier material ( CM). This composition allows to be applied to a large area and showing fast cure without using accelerators and without being problematic or toxic to health and environment. By adding the accelerator component (C3) the curing is accelerated, i.e. the three component polyurethane system allows a curing on demand. Due to these properties the composition is particularly useful for flooring.