Fluorobenzene derivatives and liquid-crystalline medium

US5641429A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Volker Reiffenrath · Roßdorf, DE
• Hans-Adolf Kurmeier · Seeheim-Jugenheim, DE
• Eike Poetsch · Mühltal, DE
• Herbert Plach · Darmstadt, DE
• Ulrich Finkenzeller · Plankstadt, DE
• Ekkehard Bartmann · Langen (Hessen), DE
• Joachim Krause · Dieburg, DE
• Bernhard Scheuble · Alsbach, DE

Key dates

• Filing date: Sep 18, 1995
• Grant date: Jun 24, 1997
• Expiry date: Sep 18, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2019/3422
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Fluorobenzene derivatives of formula I, ##STR1## in which R an alkenyl radical as further defined in the specification, PA1 A.sup.1 and A.sup.2 are a trans-1,4-cyclohexylene radical, 1,4-phenylene radical or other cyclic structure as further defined in the specification, PA1 Z.sup.1 and Z.sup.2 are a single bond or bridging group, PA1 L is H or F, PA1 m is 0, 1 or 2, PA1 Y is F or Cl, and PA1 Q is a single bond.