Polymeric foam coalescing agent
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United States of America Patent
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Sep 4, 2012
Grant Date -
Oct 21, 2010
app pub date -
Jun 18, 2008
filing date -
Jun 18, 2007
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Abstract
A coalescing agent for facilitating the separation of a non-aqueous phase from an aqueous phase of an aqueous medium, said agent consisting of particles of a polymeric foam material having: an IFD no. of 40 or higher (i.e. at least 40); a BR no. of 35 or higher (at least 35); a SF no. of 1.8 or higher (i.e. at least 1.8) and a density of 42 kg/m3 or less.
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