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:
May. 29, 2001
Filed:
Mar. 09, 1999
Stephanie Andes, Maintal, DE;
Gerd Bauer, Kleinostheim, DE;
Günter Brenner, Griesheim, DE;
Dieter Brückner, Darmstadt, DE;
Michael Schmelz, Kriftel, DE;
Andrea Heyland, Ober-Kainsbach, DE;
Matthias Kuntz, Seeheim, DE;
Karl Osterried, Dieburg, DE;
Gerhard Pfaff, Münster, DE;
Merck Patent GmbH, Darmstadt, DE;
Abstract
Colored pearl luster pigment consisting of a core of platelet shaped titanium dioxide and one or more layers of other metal oxides or metal oxide hydrates obtainable by solidifying an aqueous solution of a thermally hydrolyzable titanium compound on a continuous belt, detaching the resulting layer, coating the resulting titanium dioxide platelets, with or without drying in between, with one or more other metal oxides or metal oxide hydrates, for example Fe,O,, Fe,O,, FeOOH or Cr,O,, by a wet method, separating, drying and, if desired, calcining the material obtained.