USE OF COPOLYMERS CONTAINING SULFONIC ACID GROUPS, AS AN ADDITIVE IN DETERGENTS AND CLEANSERS

摘要

Use of copolymers containing sulfonic acid groups which comprise (a) 30 to 95 mol % of at least one monoethylenically unsaturated carboxylic acid, one monoethylenically unsaturated carboxylic ester or one water-soluble salt of a monoethylenically unsaturated carboxylic acid, (b) 3 to 35 mol % of at least one monomer containing sulfonic acid groups of the formula I in which the variables have the following meanings: R is hydrogen or methyl; X is a chemical bond or -COO-R¹-; R¹ is unbranched or branched C₁-C₄-alkylene; M is hydrogen, alkali metal or ammonium, and (c) 2 to 35 mol % of at least one nonionic monomer of the formula II in which the variables have the following meanings: R² is hydrogen or methyl; R³ is a chemical bond or unbranched or branched C₁-C₆-alkylene; R⁴ are identical or different unbranched or branched C₂-C₄-alkylene radicals; R⁵ is unbranched or branched C₁-C₆-alkyl, C₅-C₈-cycloalkyl or aryl; n is 3 to 50, in random or block copolymerized form, as additive for detergents and cleaners.