Cleaning Formulations for Machine Dishwashing Comprising Hyrdophilically Modified Polycarboxylates

摘要

The invention relates to a phosphate-free detergent formulation for machine dishwashing comprising, as components: a) from 1 to 20% by weight of copolymers of a1) from 50 to 99.5 mol % of a monoethylenically unsaturated monocarboxylic acid and/or of a salt thereof, a2) from 0.5 to 20 mol % of an alkoxylated, monoethylenically unsaturated monomer of the formula (I) a3) from 0 to 50 mol % of a monoethylenically unsaturated dicarboxylic acid, of an anhydride and/or of a salt thereof, a4) from 0 to 20 mol % of a further copolymerizable, monoethylenically unsaturated monomer, where the copolymer has a mean molecular weight M_w of from 30 000 to 500 000 g/mol and a K value of from 40 to 150, measured at pH 7 in 1% by weight aqueous solution at 25° C., b) from 1 to 50% by weight of complexing agents selected from the group consisting of nitrilotriacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, hydroxyethylethylenediaminetriacetic acid and glycine-N,N-diacetic acid and their derivatives, glutamic acid N,N-diacetic acid, iminodisuccinate, hydroxyiminodisuccinate, S,S-ethylene-diaminedisuccinate and aspartic acid diacetic acid and also the salts of the aforementioned substances, c) from 1 to 15% by weight of low-foaming nonionic surfactants, d) from 0.1 to 30% by weight of bleaches and, if appropriate, bleach activators, e) from 0 to 60% by weight of further builders, f) from 0 to 8% by weight of enzymes, g) from 0 to 50% by weight of one or more further additives, the sum of components a) to g) adding up to 100% by weight.