Colloid systems and wetting agents; subcombinations thereof; pro – Continuous liquid or supercritical phase: colloid systems;... – Aqueous continuous liquid phase and discontinuous phase...
Reexamination Certificate
2002-01-08
2009-12-08
Hendricks, Keith D. (Department: 1794)
Colloid systems and wetting agents; subcombinations thereof; pro
Continuous liquid or supercritical phase: colloid systems;...
Aqueous continuous liquid phase and discontinuous phase...
C423S335000
Reexamination Certificate
active
07629391
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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Falk Uwe
Henning Torsten
Jacquinot Eric
Perard Marie-Laure
AZ Electronic Materials USA Corp.
Chawla Jyoti
Hendricks Keith D.
Jain Sanoya
Kass Alan P.
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