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:
Aug. 17, 2004
Filed:
Jun. 04, 2003
Applicant:
Inventors:
Stephanie Andes, Hanau, DE;
Sabine George, Bensheim, DE;
Margarete Herbski, Gross-Bieberau, DE;
Peter Reynders, Griesheim, DE;
Reiner Vogt, Kranichstein, DE;
Johann Dietz, Dietzenbach, DE;
Helge Kniess, Weiterstadt, DE;
Elke Steudel, Darmstadt, DE;
Assignee:
Merck Patent Gesellschaft MIT Beschrankter Haftung, Darmstadt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 1/400 ;
U.S. Cl.
CPC ...
C04B 1/400 ;
Abstract
The present invention relates to multilayer pigments based on platelet-shaped metal substrates coated with two or more metal oxide layers by a one-pot process in an exclusively aqueous medium. The invention further relates to the use of the multilayer pigments in paints, varnishes, printing inks, including security printing inks, plastics, ceramic materials and cosmetic and for the laser formulations marking of plastics.