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. 12, 2021
Filed:
Jul. 02, 2019
Applicant:
Merck Patent Gmbh, Darmstadt, DE;
Inventors:
Ryuta Suzuki, Fukushima Ken, JP;
Gerhard Pfaff, Muenster, DE;
Sabine Schoen, Herten, DE;
Fumiko Sasaki, Iwaki, JP;
Satoru Kobayashi, Fukushima, JP;
Koshiro Kunii, Fukushima Ken, JP;
Yuji Takenaka, Iwaki, JP;
Katsuhisa Nitta, Fukushima Ken, JP;
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09C 1/40 (2006.01); C09C 1/00 (2006.01); C01F 7/02 (2006.01); C01F 7/34 (2006.01); C01F 7/44 (2006.01); C09D 7/40 (2018.01); C09D 7/62 (2018.01); C08K 3/22 (2006.01);
U.S. Cl.
CPC ...
C09C 1/407 (2013.01); C01F 7/02 (2013.01); C01F 7/34 (2013.01); C01F 7/441 (2013.01); C09C 1/0018 (2013.01); C09C 1/0021 (2013.01); C09C 1/0024 (2013.01); C09C 1/0039 (2013.01); C09C 1/0051 (2013.01); C09C 1/0066 (2013.01); C09D 7/62 (2018.01); C09D 7/70 (2018.01); C01P 2002/52 (2013.01); C01P 2002/84 (2013.01); C01P 2004/20 (2013.01); C01P 2004/24 (2013.01); C01P 2004/51 (2013.01); C01P 2004/54 (2013.01); C01P 2004/61 (2013.01); C08K 3/22 (2013.01); C09C 2200/1004 (2013.01); C09C 2200/301 (2013.01); Y10T 428/2982 (2015.01);
Abstract
The present invention relates to alumina flakes having a defined thickness and particle size distribution and to their use in varnishes, paints, automotive coatings printing inks, masterbatches, plastics and cosmetic formulations and as substrate for effect pigments.