Process for the preparation of flexible polyurethane foam and foam obtained thereby

Abstract

The present invention is directed to a process for the preparation of a flexible polyurethane foam and to the polyurethane foam prepared by that process. The foam is in particular a flexible polyurethane foam which has a density of between 25 and 120 kg/m3, a resilience, measured at 20° C. in accordance with ASTM D 3574 H, higher than 35%, and an ILD 40% hardness, measured in accordance with ISO 2439 B, of between 60 and 500 N. It is prepared by allowing a reaction mixture, which comprises a blowing agent, to foam. In order to influence the physical and/or thermophysiological properties of the foam, in particular the pressure distribution properties, at least one organogel material is dispersed in the reaction mixture before allowing it to foam.

Dependencies are inferred from the claim text.