Humidity curing polyurethane composition being accelerated by influence of heat

摘要

Curable composition comprises (a) at least one isocyanate group containing polymer; (b) at least one blocked amine comprising a blocked, hydrolytically activatable amino group or at least one reactive group, which comprises hydroxyl-, mercapto- or secondary amino-groups; and (c) at least one finely divided water-producing substance that is solid at room temperature, when heated to a minimum temperature of 50-100[deg] C. An independent claim is included for bonding of a substrate-S1 with a substrate-S2 comprising either applying the composition on the substrate-S1 and contacting the applied composition with the substrate-S2 within the open time of the composition, or applying the composition on the substrates-S1 and -S2, contacting the applied composition together within the open time of the composition and processing the composition by heating at 50-100 (preferably 90-130)[deg] C, where the substrate-S1 is same or different from -S2.