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:
Jun. 30, 1998
Filed:
Nov. 18, 1996
Applicant:
Inventors:
Detlef Pauluth, Ober-Ramstadt, DE;
Matthias Bremer, Darmstadt, DE;
Herbert Plach, Darmstadt, DE;
Georg Weber, Erzhausen, DE;
Assignee:
Merck Patent Gesellschaft mit Beschrankter Haftung, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; C09K / ; C07C / ;
U.S. Cl.
CPC ...
2522996 ; 25229901 ; 25229961 ; 25229963 ; 25229964 ; 25229865 ; 25229966 ; 25229967 ; 568626 ; 568647 ; 548136 ; 544298 ; 549369 ; 570129 ;
Abstract
Chiral benzene derivatives of formula I ##STR1## in which R.sup.1*, R.sup.2*, X.sup.1, X.sup.2, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, L.sup.1, L.sup.2, L.sup.3, m, n and k are as defined in claim 1, and their use as chiral dopes in liquid-crystalline media, particularly for electrooptical displays, and to electrooptical displays containing such media.