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US 2023/0416535 A1Published application
Grinding aid for titanium dioxide particles
AssigneeKronos International, Inc.
InventorsMariusz Molon, Nicole Kolmer-anderl, Janine Siekman, Sebastian Doedt
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Abstract
The present invention relates to a grinding aid as well as a grinding method. Further, the present invention pertains to a titanium dioxide particle with a layer comprising a grinding aid as described herein and the use of said titanium dioxide particle in various applications.
Claims15
A method of grinding titanium dioxide pigment particles, the method comprising:
- supplying titanium dioxide pigment particles in a steam mill;
- supplying a grinding aid in the steam mill, wherein the grinding aid has a size (d50m) of from about 0.3 μm to about 100 μm;
- and
- milling the titanium dioxide pigment particles with the grinding aid in the steam mill;
- wherein the grinding aid is selected from the group consisting of the group consisting of fumed silica, precipitated silica, colloidal silica, talc and mixtures thereof.
2 more elements
Dependencies are inferred from the claim text.