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. 23, 2017
Filed:
Nov. 14, 2011
Applicants:
Kaiman Shimizu, Roth, DE;
Fumiko Sasaki, Iwaki, JP;
Yukitaka Watanabe, Iwaki, JP;
Inventors:
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D 7/12 (2006.01); C09C 1/00 (2006.01); C09D 5/36 (2006.01); A61Q 1/10 (2006.01); C09D 11/037 (2014.01);
U.S. Cl.
CPC ...
C09D 7/1291 (2013.01); A61Q 1/10 (2013.01); C09C 1/0015 (2013.01); C09D 5/36 (2013.01); C09D 7/1225 (2013.01); C09D 11/037 (2013.01); C01P 2004/54 (2013.01); C01P 2006/42 (2013.01); C09C 2200/1004 (2013.01); C09C 2200/30 (2013.01); C09C 2200/302 (2013.01); C09C 2200/305 (2013.01); C09C 2200/401 (2013.01); C09C 2220/106 (2013.01);
Abstract
The present invention is related to brilliant black pigments comprising a flaky aluminum oxide substrate having a coating comprising a layered structure composed of a hematite and a magnetite layer, to a process for the production of said pigments, as well as to their use.