 and PA0 (0) optionally water and/or other organic compounds containing isocyanate-reactive hydrogen atoms. PA0 (0) polyisocyanates with PA0 (0) phosphorus-containing condensation products having at least one hydroxyl group obtainable by condensing (i) primary or secondary aliphatic, cycloaliphatic, aromatic, araliphatic or heterocyclic monoamines and/or polyamines, which 