Slurry containing an agglomerated carbonate-containing pigment
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United States of America Patent
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-
Nov 23, 1999
Grant Date -
N/A
app pub date -
Jul 24, 1998
filing date -
Jul 28, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A slurry containing water, carbonate-containing pigment, and dispersant consisting of 25-70 % by weight of agglomerated carbonate-containing pigment, 0.1-1.0% by weight of a dispersant, the balance being water up to 100%, can be used advantageously in papermaking as well as in the paint and lacquer industry. In a novel process for agglomerating ultra-fine particles in slurries the slurry is subjected to heat treatment until the agglomeration is complete.
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