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:
Apr. 07, 2015
Filed:
Apr. 20, 2012
Applicants:
Mark Goebel, Darmstadt, DE;
Rocco Fortte, Frankfurt am Main, DE;
Detlef Pauluth, Ober-Ramstadt, DE;
Inventors:
Assignee:
MERCK PATENT GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/54 (2006.01); C09K 19/30 (2006.01); C09K 19/12 (2006.01); C09K 19/34 (2006.01); C09K 19/44 (2006.01);
U.S. Cl.
CPC ...
C09K 19/54 (2013.01); C09K 19/3483 (2013.01); C09K 19/44 (2013.01); C09K 19/3098 (2013.01); C09K 2019/123 (2013.01); C09K 2019/3004 (2013.01); C09K 2019/301 (2013.01); C09K 2019/3016 (2013.01); C09K 2019/3027 (2013.01);
Abstract
The invention relates to compounds of the formula I, and to a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises one or more compounds of formula I, defined herein, for use in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PALO, FFS or IPS effect, and to the use of the compounds of the formula I for the stabilization of a liquid-crystalline medium which comprises one or more compounds of the formula II and one or more compounds of the formulae III-1 to III-4, defined herein.