PREPARATION OF SOFT FLEXIBLE POLYURETHANE FOAM FROM A COMPOSITION COMPRISING A POLYOL AND A MONOHYDRIC POLYETHER, IN THE PRESENCE OF A TRIMERISATION CATALYST

摘要

Low density flexible molded and slabstock foams are prepared by reacting a polyisocyanate with a polyol composition containing a polyether mono-alcohol. The blowing of the foam is essentially with carbon dioxide generated from the reaction of water with isocyanate, and the reaction catalysts used in the preparation of the foam include a polyisocyanate trimerization catalyst used in admixture with a urethane catalyst.