Patent ID: 8361946
Filing Date: 2013-01-29
Classification: C11D

Abstract:
1. A method of preparing an aqueous detergent dispersion comprising mixing at least one silane compound and colloidal silica particles in an aqueous dispersion in a weight ratio of silane to silica of about 0.1 to about 1.5, optionally comprising an organic solvent miscible with water, wherein no organosiloxane or silicone are admixed for preparing a silicone coat on any silica particles or silane-modified silica particles to form an aqueous dispersion of silanized colloidal silica particles, adding a detergent comprising at least one anionic and/or non-ionic surfactant to said dispersion to form an aqueous detergent dispersion comprising silanized colloidal silica particles, wherein said detergent is added in an amount resulting in a detergent content from about 2 to about 80 wt % based on the detergent dispersion, wherein the total amount of organic solvent miscible with water, if present, is present in an amount of about 20 volume % or less based on the total dispersion volume.