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:
Dec. 23, 1986
Filed:
Dec. 21, 1984
Applicant:
Inventors:
Klaus Praefcke, Berlin, DE;
Bernd Kohne, Berlin, DE;
Wadi Poules, Berlin, DE;
Eike Poetsch, Muhltal, DE;
Assignee:
Merck Patent Gesellschaft mit beschrankter Haftung, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C07C / ; C07C / ; C07C / ; C07C / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
25229962 ; 2522995 ; 2522996 ; 25229901 ; 3503 / ; 3503 / ; 558396 ; 558397 ; 568 28 ; 568 32 ; 568 34 ; 568 36 ; 568 45 ; 568 47 ; 568 49 ; 568 55 ; 568 57 ; 568 58 ; 568 66 ; 568 67 ; 558257 ;
Abstract
Triphenylene derivatives of the formula I ##STR1## wherein X.sup.1 to X.sup.6 are each, independently of one another, --SH, --SR, --SOR, --SO.sub.2 R or --S--COR, and each R is an alkyl group with up to 20 C atoms, it being possible for one or two CH.sub.2 groups to be replaced by O atoms and/or by unsubstituted or substituted vinylene or vinylidene groups, may be used as components of discotic liquid-crystalline phases.