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:
Jan. 30, 2007
Filed:
Jul. 11, 2005
Hans-dieter Brückner, Darmstadt, DE;
Andrea Heyland, Reichelsheim, DE;
Christoph Schmidt, Krifrel, DE;
Christina Schank, Ober-Rarmstadt, DE;
Claudia Seibel, Otzberg, DE;
Hans-Dieter Brückner, Darmstadt, DE;
Andrea Heyland, Reichelsheim, DE;
Christoph Schmidt, Krifrel, DE;
Christina Schank, Ober-Rarmstadt, DE;
Claudia Seibel, Otzberg, DE;
Merck Patent GmbH, Darmstadt, DE;
Abstract
Multilayer interference pigment consisting of a transparent carrier material coated with alternating layers of metal oxides of low and high refractive index, the difference in the refractive indices being at least 0.1, which is obtainable by alternate coating of the transparent carrier material with a metal oxide of high refractive index and with a metal oxide of low refractive index in a wet process by hydrolysis of the corresponding water-soluble metal compounds, separation, drying and, if desired, calcination of the resulting pigment.