Benzene derivatives and liquid-crystalline medium

US6159393A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Kazuaki Tarumi · Seeheim-Jugenheim, DE
• Ekkehard Bartmann · Langen (Hessen), DE
• Volker Reiffenrath · Roßdorf, DE
• Sabine Schoen · Darmstadt, DE
• Detlef Pauluth · Ober-Ramstadt, DE
• Brigitte Schuler · Großostheim, DE
• Eike Poetsch · Mühltal, DE

Key dates

• Filing date: Apr 21, 1997
• Grant date: Dec 12, 2000
• Expiry date: Apr 21, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it contains one or more compounds of the general formula I ##STR1## in which R, Y, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, L.sup.1 and m are as defined herein.