Polyurethane foams stabilized with surfactants polyurethane

The invention relates to the preparation of polyurethane foams hydrophilized, especially for the treatment of wounds, in which a composition containing a polymer and stabilizers based on special polyurethane foam and dried. CLAIMS 1. Compositions obtainable by mixing at least polyurethanes (1) containing free of at most 1.0% by weight isocyanate groups and a content of ethylene oxide units (molecular weight = 44 g / mol) arranged within polyether chain incorporated by monofunctional B alcohols) from 10 to 95% by weight were prepared by reaction of a) polyisocyanate prepolymers with an NCO functionality (average) greater than or equal to 1 with B) 10 to 100 equivalent%, based on the isocyanate groups of a), of a component monohydroxy alcohol comprising at least one monohydric polialcoholeter with an average molecular weight of 150 to 5000 g / mol with a content of oxyethylene units of 30 to 100 mol% based on the total oxyalkylene unit content of monohydric polialcoholeter, C) 0 to 20 equivalent%, based on the isocyanate groups of a), of an alcohol component mon ohidroxilico comprising various monohydric alcohols of the compounds of component B) with an average molecular weight of 32 to 5000 g / mol, D) 0 to 80 equivalent%, based on the isocyanate groups of A), in the sense the addition reaction of NCO, at least components dysfunctional synthesis with an average molecular weight of 32 to 10,000 g / mol with formation of urethane and optionally urea, having become optionally reacting the NCO groups present in excess of secondary reactions that They are performed simultaneously or subsequently to a residual content of at most 1.0% by weight and foamable polymers (2) based polyureas, polyurethanes, polyacrylates, polyurethane-polyesters, polyurethane polyethers, polyureas and polyurethane-polyurethane-polycarbonate and mixtures of these polymers discretionary as their aqueous dispersions.