Patent ID: 6576602
Filing Date: 2003-06-10
Classification: C11D

Abstract:
A non-aqueous, liquid, heavy-duty detergent in the form of a suspension of solid, substantially insoluble particulate material dispersed throughout a structured, surfactant-containing liquid phase, wherein:A) said composition comprises from about 45% to 95% by weight of the composition of a structured, surfactant-containing liquid phase formed by combining: i) from about 50% to 80% by weight of said liquid phase of one or more non-aqueous organic diluents; and ii) from about 20% to 50% by weight of said liquid phase of an anionic surfactant-containing powder which is formed by co-drying: a) one or more alkali metal salts of C10-16 linear alkyl benzene sulfonic acids; and b) a non-surfactant salt selected from the group consisting of alkali metal salts of sulfates citrates, sulfo-succinates and mixtures thereof; to produce a powder which contains from about 80% to 94% by weight of said powder of said alkyl benzene sulfonic acid salts, from about 2% to 15% by weight of said powder of said non-surfactant salts and from about 0.5% to 4% by weight of said powder of residual water; and which contains from about 10% to 25% by weight of said powder of a solid phase which is insoluble in said non-aqueous organic diluents; and B) said composition also comprises from about 5% to 55% by weight of the composition of additional particulate material which ranges in size from about 0.1 to 1500 microns, which is substantially insoluble in said liquid phase and which is selected from peroxygen bleaching agents, bleach activators, ancillary anionic surfactants, organic detergent builders and inorganic alkalinity sources and combinations of said particulate material types.