Method for making paper using microparticles
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United States of America Patent
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Feb 27, 2001
Grant Date -
N/A
app pub date -
Sep 14, 1999
filing date -
Jun 7, 1995
priority date (Note) -
Expired
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Abstract
A microparticle composition for paper making includes finely divided particles of a water insoluble solid such as amorphous sodium aluminosilicate, and having an anionic charge of at least 20 millivolts, and preferably from about 40 to 60 millivolts, and a particle size of less than about 0.1 microns.
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