Patent ID: 6849666
Filing Date: 2005-02-01
Classification: C08G

Abstract:
1. A process for the production of a polyurethane product by reaction of a mixture of (a) at least one organic polyisocyanate with (b1) from 50 to 99 percent by weight of at least one isocyanate-reactive material having a functionality from 2 to 8 and a hydroxyl number of 20 to 140 (b2) from 1 to 50 percent by weight of an isocyanate reactive fusible polymer substantially free of aromatic and having (1) a melting point of between 45° C. and 180° C.; (2) a T wherein the weight percent is based on the total amount of (b) and (b2) is either melted during the polyurethane production process through internal exotherm of the polyurethane reactions or is melted by external heating before or during the polyurethane reactions, and reacts with isocyanate, (c) optionally in the presence of a blowing agent and (d) optionally auxiliary agents known per se for the production of polyurethane foams.