| abstract |
In an improved process for the preparation of a dispersion of inorganic materials in an aqueous medium, the improvement comprising incorporating into the aqueous medium a dispersant selected from the group consisting of 1) a hydrolyzed, partially esterified ethylenically unsaturated aromatic/maleic anhydride copolymer, 2) a hydrolyzed alpha-olefin/maleic anhydride copolymer, and 3) a hydrolyzed partial ester of an alpha-olefin/maleic anhydride copolymer, and the resulting compositions are disclosed. |