The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2019
Filed:
Dec. 22, 2016
Applicant:
Kronos International, Inc., Leverkusen, DE;
Inventor:
Norbert Beyer, Frechen, DE;
Assignee:
Kronos International Inc, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C 1/36 (2006.01); B01J 2/00 (2006.01); C09C 3/06 (2006.01);
U.S. Cl.
CPC ...
C09C 1/3661 (2013.01); B01J 2/006 (2013.01); C09C 3/063 (2013.01); C01P 2006/12 (2013.01);
Abstract
A method for coating the surface of a substrate, such as inorganic particles, with a metal oxide. A suspension is formed containing the substrate, a polyvalent anion and a metal ion where the molar ratio of the polyvalent anion to the metal ion is greater than three and the metal ion is precipitated onto the substrate as a metal oxide. Preferably, the method is used to coat titanium dioxide pigment particles with aluminum oxide.