Patent ID: 6277804
Filing Date: 2001-08-21
Classification: C11D

Abstract:
A process for preparing a non-aqueous liquid detergent composition in the form of a suspension of solid, substantially-insoluble particulate material dispersed throughout a structured, surfactant-containing liquid phase, which process comprises steps of:A) forming an aqueous slurry containing from about 45% to 94% by weight of one or more alkali metal salts of linear C.sub.10-16 alkyl benzene sulfonic acids and from about 2% to 50% by weight of one or more dissolved non-surfactant salts;B) drying the slurry formed in Step A to a solid material containing from about 0.5% to 4% by weight of water;C) adding, in particulate form, the dried solid material of Step B to an agitated liquid medium comprising one or more non-aqueous organic diluents, to thereby form a structured, surfactant-containing liquid phase; and thereafterD) subjecting the structured, surfactant-containing liquid phase formed in Step C to milling or high shear agitation at a temperature from about 20.degree. C. to 60.degree. C., said milling or high shear agitation being sufficient to increase the yield value of said structured, surfactant-containing liquid phase to a level within the range from 1 Pa to 8 Pa, to thereby form said non-aqueous liquid detergent composition.