Patent ID: 8093196

Claim:
A phosphate-free detergent formulation comprising: a) from 1 to 20% by weight of at least one copolymer selected from the group consisting of: an ethoxylated copolymer of acrylic acid, maleic acid and allyl alcohol; and an ethoxylated copolymer of acrylic acid and glycerol monoallyl ether, 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 at least one complexing agent 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-ethylenediaminedisuccinate and aspartic acid diacetic acid and also the salts of the aforementioned substances, c) from 1 to 15% by weight of a low-foaming nonionic surfactant, d) from 0.1 to 30% by weight of a bleach and, optionally, a bleach activator, e) from 0 to 60% by weight of a further builder, f) from 0 to 8% by weight of an enzyme, and g) from 0 to 50% by weight of one or more further additives, wherein the sum of components a) to g) is 100% by weight.