4-Fluorobiphenyl derivatives, their preparation, and dielectrics and electro-optical display element containing them

US4473487A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Michael C. Romer · Rodgau, DE
• Joachim Krause · Dieburg, DE
• Georg Weber · Langen (Hessen), DE

Key dates

• Filing date: Dec 27, 1982
• Grant date: Sep 25, 1984
• Expiry date: Dec 27, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K19/3068
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

4-Fluorobiphenyl derivatives of the formula (I) ##STR1## wherein X is --CO--O-- or --O--CO--; Z is 1,4-phenylene or 1,4-cyclohexylene; and R is alkyl, alkoxy or alkanoyloxy, each of 1 to 8 atoms, are valuable components of liquid-crystalline dielectrics for electro-optical applications.