Polymer Compositions and Their Use in the Production of Active or Effective Ingredient Compositions

A polymer composition, obtained by reacting

• a) at least one polymer P1 which carries functional groups R1 which are reactive toward isocyanate groups and which is constructed of ethylenically unsaturated monomers M1, where the monomers M1 comprise more than 20% by weight, based on the total amount of monomers M1, of monomers M1a having at least one functional group FG selected from the group consisting of tertiary amino groups, imino groups, carboxamide groups, nitrile groups, lactam groups, keto groups, aldehyde groups, urea groups, polyether groups, carboxyl groups, sulfonyl groups, hydroxysulfonyl groups and sulfonamide groups,
• b) at least one poly-C2-C4-alkylene ether P2 which carries functional groups R2 which are reactive toward isocyanate groups,
• c) with at least one compound V which contains isocyanate groups and, with respect to the isocyanate groups, has a functionality of at least 1.5.