Treatment of clays with cationic polymers to prepare high bulking pigments
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United States of America Patent
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Apr 19, 1988
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N/A
app pub date -
May 12, 1986
filing date -
May 6, 1985
priority date (Note) -
Expired
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Abstract
A highly bulked kaolin pigment is prepared by mixing a small but effective amount of a water-soluble cationic polyelectrolyte flocculant with a kaolin clay pigment in the presence of water to prepare a bulked clay pigment product. Upon dewatering, the resultant polyelectrolyte treated clay product can be dispersed to form high solids clay-water slurries useful in making aqueous coating colors suitable for manufacturing coating lightweight publication papers or the pigment can be used as a filler for paper webs.
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