| abstract |
A process for the production of polyurethane foams, in particular for the production of composite bodies by foaming a plastic film as a cover layer by reacting a polyisocyanate component with a salt group-free polyol component in the presence of at least one blowing agent, alkali metal carboxylates as catalysts and other auxiliaries and additives, selected, highly polar organic Compounds with a dipole moment of more than 2.0 Debye in an amount of 0.01 to 30% by weight, based on the polyol component, can also be used as compatibilizers for the alkali metal carboxylates. |