PROCESS FOR PREPARING A PARTICULATE SOLID AND A PARTICULATE SOLID
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United States of America Patent
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Issued Date -
Sep 4, 2014
app pub date -
Sep 25, 2012
filing date -
Sep 28, 2011
priority date (Note) -
Abandoned
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Abstract
A process for preparing a particulate solid is described, which comprises the steps of a) aggregating a dispersion comprising the particles i) and ii) and a liquid medium, wherein i) is 25 to 50 parts by weight of non-polymeric particles having an average particle size of from 1 to 10 microns and having a density of no more than 4 g/cm3; and ii) is 50 to 75 parts by weight of polymer particles having an average particle size of from 50 to 150 nm; b) optionally stabilising the aggregated particles; and c) heating the aggregated particles so as to cause particle coalescence.
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