PROCESS FOR PREPARING A DISPERSION OF A PARTICULATE SOLID
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United States of America Patent
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Issued Date -
Nov 15, 2012
app pub date -
Nov 8, 2010
filing date -
Dec 1, 2009
priority date (Note) -
Abandoned
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Abstract
A process for preparing a dispersion of a particulate solid is described, which comprises dispersing a particulate solid with a dispersant and a liquid medium, wherein the dispersant is a random copolymer obtained from the copolymerisation of a composition comprising: i) optionally one or more monoethylenically unsaturated hydrophilic monomers, ii) one or more monoethylenically unsaturated hydrophobic monomers, iii) one or more di- and/or higher-ethylenically unsaturated monomers, and iv) one or more chain transfer agents wherein at least one of the chain transfer agents has one or more hydrophilic anionic groups.
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