Patent ID: 8709169

Claim:
A method of cleaning hard surfaces which comprises applying to said surfaces a cleaning effective amount of an aqueous composition comprising a nonionic surfactant in an aqueous media, the solubility of said nonionic surfactant in said aqueous media having been increased by adding to said nonionic surfactant and/or aqueous media a hydrotrope for said nonionic surfactant, said hydrotrope comprising a cationic surfactant having the formula wherein R═C 8 -C 20 alkyl or alkenyl; R 1 and R 2 independently are a C 1 -C 4 alkyl group; n=15-25; and X − is an anion, and said nonionic surfactant is a C 8 -C 18 -alcohol alkoxylate containing 1-20 ethyleneoxy units and 0-5 propyleneoxy units, and said aqueous media comprises alkali hydroxides, alkaline builders and/or alkaline complexing agents, with the proviso that if any anionic and/or amphoteric surfactant is present in the composition, then the molar amount of the cationic hydrotrope is greater than the molar amount of any anionic groups in the anionic and/or amphoteric surfactant.