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:
Jul. 18, 2023
Filed:
Sep. 23, 2019
Applicant:
Merck Patent Gmbh, Darmstadt, DE;
Inventors:
Peer Kirsch, Seeheim-Jugenheim, DE;
Kerstin Altenburg, Darmstadt, DE;
René Lutz, Brensbach, DE;
Susann Gunst, Darmstadt, DE;
Michael Junge, Pfungstadt, DE;
Ursula Patwal, Reinheim, DE;
Assignee:
MERCK PATENT GMBH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1333 (2006.01); C09K 19/60 (2006.01); C09K 19/30 (2006.01); C09K 19/34 (2006.01); C09K 19/04 (2006.01);
U.S. Cl.
CPC ...
C09K 19/601 (2013.01); C09K 19/3003 (2013.01); C09K 19/3068 (2013.01); C09K 19/3402 (2013.01); C09K 2019/0466 (2013.01); C09K 2019/301 (2013.01); C09K 2019/3009 (2013.01); C09K 2019/3016 (2013.01); C09K 2019/3021 (2013.01); C09K 2019/3025 (2013.01); C09K 2019/3071 (2013.01); C09K 2019/3078 (2013.01); C09K 2019/3422 (2013.01);
Abstract
The present invention relates to azo dye of formula I defined in claim, to a liquid crystalline medium comprising said azo dye, the use of said medium for optical, electrooptical and electronic purposes, in particular in devices for regulating the passage of energy from an outside space into an inside space, for example in windows. The invention further relates to a device containing the liquid crystalline medium according to the invention.