Polyurethane and expanded polyurethane foams prepn., avoiding porogen - using a two component formulation contg. solid powder derived from dried exhaust pulps of the sugar-beet, for environmentally friendly mfr.

摘要

Method for the prodn. of polyurethanes (I) and expanded polyurethane foams (II) comprises the use of a two-component formulation. The first component is a material with a hydroxylic content (III) and is combined with suitable additives such as catalysts, surfactants, fillers, pigments and porogen agents. The second component is a cpd. contg. two or more isocyanate gps. (IV). (III) is derived from a solid material of vegetable origin. Also claimed are (I) and (II).