Methods for modifying high-shear rate properties of colloidal dispersions
OwnerAbbas A. Zaman, Gary M. Freemaninventors
Life of this patent
Estimating the term…
Abstract
The subject invention provides advantageous methods for modifying high-shear rate properties of colloidal dispersions, such as kaolines and clays. The subject invention can be utilized to modify the high shear rate properties of colloidal dispersions having particles that need to be dispensed carrying a positive surface charge and/or particles that need to be dispersed having heterogeneous charges.
Claims18
A method for increasing the solids content in a colloidal dispersion of particles, wherein said method comprises adding to said dispersion an anionic surfactant in sufficient amounts to affect said increase in solids content compared to the colloidal dispersion in the absence of said surfactant.
A method for modifying high-shear rate properties of a colloidal dispersion of particles wherein said method comprises adding to said dispersion a polyacrylate and an anionic surfactant.
A kit comprising a polyacrylate and an anionic surfactant in separate containers.
Dependencies are inferred from the claim text.