Aqueous dispersion of su00eclica, process for the preparation of an aqueous dispersion of su00eclica, and method for the treatment of leather tanned

摘要

"Aqueous dispersion of su00eclica, process for the preparation of an aqueous dispersion of su00eclica, and method for the treatment of leather tanned".It is provided with an aqueous dispersion of silica containing silica particles dispersed in an aqueous medium. The surfaces of silica particles are treated with a compound aminossilano reacted.Aqueous dispersion of silica contains an anionic polymeric dispersing agent.Dispersion of silica particles in an aqueous medium containing both.The anionic polymeric dispersing agent and the compound aminossilano allows for the preparation of aqueous dispersions of silica with higher solids and / or viscosities lower than the aquos dispersionsThe silica are prepared without, or anionic polymeric dispersing agent, or the compound aminossilano.Aqueous dispersion of silica can be combined with the aqueous emulsion polymers to modify the physical properties or appearance of articles formed from the polymer emulsion.