Abstract: A mixture comprising a surfactant and a cosurfactant is proposed, wherein the cosurfactant used is an amphiphilic polymer with the structural formula in which A? is an unbranched or branched alkyl, cycloalkyl, aryl or aralkyl radical having 1 to 60 carbon atoms, Y is S or O, A is a structural unit with the formula in which R1, R2, R3 and R4 independently of one another, are the substituents hydrogen, methyl, ethyl, n-propyl, octyl or phenyl, m is a running number in the range from 10 to 200, X is a structural unit with the formula in which the substituents R1, R2, R3 and R4 are the same as in the structural unit A, q=0 or q=1, B is a monomeric subunit based on ethylene oxide or a mixture of ethylene oxide and propylene oxide, n is a running number in the range from 20 to 500 and p=q+1.

Abstract: Phosphoric esters obtained bya) reacting a mono-, oligo- or polyamine with an alkylene oxide or alkylene carbonate to give an amino alcohol or amino mono-, oligo-, or polyether alcohol, from 50 to 100% of the alkoxylatable NH groups of the amine being alkoxylated,b) reacting the resulting amino (ether) alcohol with a hydroxycarboxylic acid or a dicarboxylic acid and a diol to give a mono-, oligo- or polyester, or reacting it with a diisocyanate and a diol to give a di-, oligo- or polyurethane, from 50 to 100% of the terminal hydroxyl groups in the amino (ether) alcohol being esterified or converted into urethane groups, andc) reacting the resulting amino (ether) ester or urethane with a phosphorus compound which forms phosphoric esters, from 5 to 100% of the terminal hydroxyl groups in the amino (ether) ester or urethane being converted into phosphoric ester groups, and the phosphorus atoms being mono- and/or di- and, if appropriate, tri-esterified,preparation of the phosphoric esters, and their use as disper