| 摘要 |
Disclosed herein is an aqueous slurry composition comprising: (a) at least one clay or clay-like material selected from the group consisting of talc, pyrophyllite, kaolinite, bentonite, montmorillonite, attapulgite, sepiolite, wollastonite and mixtures thereof; (b) at least one nonionic hydrophobically associative polymer selected from the group consisting of hydrophobically modified cellulose ether, hydrophobically modified poly[ethylene glycol], copolymers of vinyl alcohol and vinyl alkonate, hydrophobically modified ethoxylated urethane, hydrophobically modified poly(acetal-polyethers), and mixtures thereof; and (c) optionally, at least one surfactant; wherein the ratio of nonionic hydrophobically associative polymer to clay or clay-like material is from 0.1-10 parts by weight non-ionic hydrophobically associative polymer to 100 parts clay or clay-like material,wherein the clay or clay-like material is present in the composition in an amount of from 20 to 65% by weight, and wherein the clay-like material, preferably is talc having a mean particle size in the range of 0.5 micron to 20 microns. |
