SPRAY-STABLE AQUEOUS FOAM, ITS PRODUCTION AND USE

摘要

Spray-stable and castable aqueous foams (S) produced by the mechanical foaming of suitable aqueous preparations (W), in which the aqueous phase contains (A) a curable polymer system consisting of (U) an ionomeric polyurethane or a mixture of ionomeric polyurethanes and possibly (P) one or more further polymers which are at leat curable with (U), and (B) at least one foam stabiliser, having a weight per litre of (S) at 20 C and normal pressure is in the range of 400 to 700 g, are eminently suitable for foam-coating corresponding substrates, especially leather.