Use of grafted polyethersiloxane copolymers for improving the low-temperature stability of antifoams in aqueous dispersions
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United States of America Patent
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Jul 20, 2010
Grant Date -
Apr 9, 2009
app pub date -
Aug 30, 2007
filing date -
Sep 1, 2006
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Expired
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Abstract
The object of the present invention is to provide antifoams which have a good antifoam effect in aqueous dispersions of polymeric organic substances, cause no wetting defects when these dispersions are applied to a surface and at the same time retain their antifoam activity even after prolonged storage at temperatures down to the freezing point.
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