Loading patent…
OwnerBruce L. Matta, Ronald W. Broadbent +2inventors
InventorsBruce L. Matta, Ronald W. Broadbent, Grannis S. Johnson, Michael S. Wiggins
Estimating the term…
A water soluble copolymer useful as an inorganic pigment dispersant is comprised of a polymerized (1) monomer which is an ethylenically unsaturated organic phosphate or phosphonate and (2) an ethylenically unsaturated carboxylated monomer, wherein the amount of the ethylenically unsaturated carboxylated monomer is sufficient to permit the copolymer to associate with an inorganic pigment in an aqueous medium in a manner which disperses the inorganic pigment in the aqueous medium to form a stable aqueous dispersion of the inorganic pigment. The pigment dispersants according to the invention are particularly useful for dispersing concentrated ZnO slurries having a ZnO content of up to about 70% and in slurries containing ZnO in the presence of TiO2.
A water soluble copolymer useful as an inorganic pigment dispersant comprised of a polymerized (1) monomer which is an ethylenically unsaturated organic phosphate or phosphonate and (2) an ethylenically unsaturated carboxylated monomer, wherein the amount of the ethylenically unsaturated carboxylated monomer is sufficient to permit the copolymer to associate with an inorganic pigment in an aqueous medium in a manner which disperses the inorganic pigment in the aqueous medium to form a stable aqueous dispersion of the inorganic pigment.
A water soluble copolymer useful as an inorganic pigment dispersant comprised of a polymerized phosphated hydroxyethyl acrylate and methacyrlic acid.
Dependencies are inferred from the claim text.