Method for stabilising dispersions
OwnerHerbert Barthel, Stephan Loskor +1inventors
InventorsHerbert Barthel, Stephan Loskor, Mario Heinemann
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Abstract
Small amounts of boron or boron compounds are effective in stabilizing dispersions of metal oxides such as silica. Boron may be incorporated into fumed silica during its preparation in a flame, may be coated onto a metal oxide surface, or may be incorporated into the liquid continuous phase.
Claims18
1-17. (canceled)
A method for stabilizing a dispersion of metal oxide(s), comprising including boron in the dispersion.
A dispersion of at least one metal oxide, containing a stabilizing effective amount of boron.
A silica, having at least with one boron compound as a coating thereon.
A method for modifying silica, comprising surface-treating silica with one or more volatile, liquid or soluble, boron compounds.
A method for modifying silica, comprising spraying into a flame during the preparation of the pyrogenic silica in a flame, one or more liquid boron compounds or boron compounds dissolved in a solvent.
Dependencies are inferred from the claim text.