Preparation of filler compositions for paper
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United States of America Patent
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Jan 24, 1989
Issued Date -
N/A
app pub date -
Apr 29, 1987
filing date -
Jul 29, 1985
priority date (Note) -
Expired
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Abstract
A process for forming a preflocculated filler for use in making paper, which process comprises continuously bringing together an aqueous slurry of a paper filler material and a flocculating agent and imparting to the mixture for a period of not more than about 2 minutes and preferably for less than about 30 seconds, a shearing force sufficient to provide a flocculated filler of controlled particle size and most suitable for papermaking.
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