Patent ID: 8436072

Claim:
A mixture comprising (A) at least one hydraulic or latently hydraulic binder, (B) at least one copolymer obtainable by reacting (α1) at least one ethylenically unsaturated comonomer having at least one functional group selected from the group consisting of COOH groups, sulfonic acid groups, nitrile groups, hydroxyalkyl groups and amino groups, or (α2) at least one (co)polymer of at least one ethylenically unsaturated comonomer having at least one functional group selected from the group consisting of COOH groups, sulfonic acid groups, nitrile groups, hydroxyalkyl groups and amino groups, with (β) at least one oligomeric or polymeric compound obtained by reacting (a) at least one ethylenically unsaturated di- or polycarboxylic acid or anhydride or ester thereof with (b) at least one alcohol with at least three hydroxyl groups and (c) at least one compound of the formula I in which the variables are each defined as follows: R 1 is C 1 -C 4 -alkyl, A is the same or different and is C 2 -C 6 -alkylene, n is in the range from 4 to 40, and (d) optionally at least one further compound having at least one COOH group or at least one alcoholic OH group per molecule.