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:
Sep. 05, 2023
Filed:
Sep. 25, 2020
Applicant:
Merck Patent Gmbh, Darmstadt, DE;
Inventors:
Stephanie Andes, Darmstadt, DE;
Ulrich Schoenefeld, Darmstadt, DE;
Thomas Krasemann, Darmstadt, DE;
Manfred Thon, Darmstadt, DE;
Martina Welsch, Darmstadt, DE;
Ralf Schweinfurth, Darmstadt, DE;
Melanie Mechthild Breidung, Wilmington, DE (US);
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09C 1/00 (2006.01);
U.S. Cl.
CPC ...
C09C 1/0039 (2013.01); C09C 1/0021 (2013.01); C09C 2200/1004 (2013.01); C09C 2200/301 (2013.01);
Abstract
The invention relates to interference pigments based on SiOflakes having a broad layer-thickness distribution, and to the use thereof in paints, coatings, powder coatings, plastics and in particular in cosmetic formulations and for colouring food and pharmaceutical products.