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:
Oct. 07, 2003
Filed:
Apr. 15, 1994
Gerd Bauer, Kleinostheim, DE;
Karl Osterried, Dieburg, DE;
Christoph Schmidt, Kelkheim, DE;
Reiner Vogt, Pfungstadt, DE;
Helge-Bettina Kniess, Weiterstadt, DE;
Michael Uhlig, Weiterstadt, DE;
Norbert Schül, Heppenheim, DE;
Günther Brenner, Griesheim, DE;
Merck Patent Gesellschaft mit beschränkter Haftung, Darmstadt, DE;
Abstract
The invention relates to a platelet-shaped pigment having high luster and high covering power or high transparency, consisting of a transparent, inorganic, platelet-shaped matrix which can contain an additional constituent, characterized in that the additional constituent is a soluble or insoluble colorant and in that the matrix is coated at least on one side with one or more thin, transparent or semi-transparent reflective layers of metal oxides or metals to achieve the luster.