Surface-modified silicon dioxide-titanium dioxide mixed oxides
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United States of America Patent
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Aug 14, 2007
Grant Date -
Jul 6, 2006
app pub date -
Dec 21, 2005
filing date -
Dec 23, 2004
priority date (Note) -
Expired
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Abstract
Pyrogenically prepared surface-modified silicon dioxide-titanium dioxide mixed oxides are prepared by spraying pyrogenically prepared silicon dioxide-titanium dioxide mixed oxides with a surface-modifying agent. The surface-modified pyrogenically prepared silicon dioxide-titanium dioxide mixed oxides can be used in sun protection formulation.
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