| abstract |
The present invention relates to a process for the production of polyurethane foams, the components containing A A1 containing compounds with isocyanate-reactive hydrogen atoms A1.1 polyether carbonate polyol, A2 propellant and if necessary A3 Auxiliaries and additives and B di- and/or polyisocyanates, are reacted with one another, characterized in that the structure of A1.1 is composed of a starter compound S1 having a molecular weight of 18 to 200 g/mol on which a first, inner alkylene oxide block containing 0.5 to 30% by weight of ethylene oxide building blocks , Based on the total mass of the alkylene oxide used in the first alkylene oxide block, and a second, outer block of carbon dioxide and alkylene oxide is attached. |