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:
Nov. 30, 1999
Filed:
Mar. 10, 1998
Applicant:
Inventors:
Kazuaki Tarumi, Seeheim, DE;
Brigitte Schuler, Grossostheim, DE;
Michael Schwarz, Weiterstadt, DE;
Peter Mackert, Darmstadt, DE;
Assignee:
Merck Patent Gesellschaft Mit, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ;
U.S. Cl.
CPC ...
25229963 ; 25229966 ;
Abstract
The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the formula I ##STR1## and one or more compounds of the formula I.sup.* ##STR2## in which R, Y, L and s are as defined herein.