Process for the preparation of aqueous suspensions of anionic colloidal silica having a neutral pH and applications thereof
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United States of America Patent
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Jan 26, 2010
Grant Date -
Jul 3, 2008
app pub date -
Oct 16, 2007
filing date -
Jan 9, 2001
priority date (Note) -
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Abstract
The instant invention relates to a process for the preparation of an aqueous suspension of anionic colloidal silica having a neutral pH which is stable over time and comprises individualized particles of colloidal silica which are not bound to one another by siloxane bonds. The instant suspensions show high storage stability and are particularly useful for the clarification of beer, for the preparation of cosmetic formulations, for the production of ink for printers, for paints and for anticorrosive treatments.
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