Patent ID: 7091168

Claim:
A method for improving the cleaning performance of an aqueous, liquid, laundry detergent composition, the detergent composition comprising: water, anionic co-surfactants, auxiliaries and additives, whereby, the cleaning performance is improved by adding to the detergent composition from about 1 to 35% by weight of a hydroxy mixed ether of the formula: wherein R 1 is a linear or branched alkyl group containing 2 to 18 carbon atoms, R 2 is hydrogen or a linear or branched alkyl group containing from 2 to 18 carbon atoms, R 3 is hydrogen or methyl, R 4 is a linear or branched alkyl or alkenyl group containing from 1 to 22 carbon atoms, n is a number from 1 to 50 and, wherein, the total number of carbon atoms in R 1 and R 2 is at least 6 and, wherein, the percent by weight is based on the total weight of the detergent composition and the hydroxy mixed ether.