INORGANIC PARTICULATE SUSPENSION HAVING IMPROVED HIGH SHEAR VISCOSITY
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Dec 15, 2016
app pub date -
Feb 25, 2015
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Feb 26, 2014
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An inorganic particulate suspension may include a first kaolin having a shape factor of at least about 70, and a second kaolin having a shape factor less than or equal to about 20. The first kaolin and the second kaolin form a kaolin composition, which may have a content ratio of the first kaolin to the second kaolin ranging from about 90:10 to about 50:50. An inorganic particulate suspension may include a kaolin composition having a shape factor ranging from about 55 to about 75, wherein at least about 70% to about 90% by weight of the particles of the kaolin composition have an equivalent spherical diameter less than 2 microns. The suspension may have a Hercules viscosity ranging from about 600 rpm to about 700 rpm at 18.0 dyne using an “A” bob, and the suspension may have a solids content ranging from about 55% to about 75% solids.
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