Vinylene compounds and liquid-crystalline medium

US5679285A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Ekkehard Bartmann · Langen (Hessen), DE
• Sabine Schoen · Darmstadt, DE
• Kazuaki Tarumi · Seeheim-Jugenheim, DE

Key dates

• Filing date: Feb 15, 1996
• Grant date: Oct 21, 1997
• Expiry date: Feb 15, 2016

Classification

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

Abstract

Vinylene compounds of the formula I ##STR1## in which R, A.sup.1, Z.sup.1, X, L.sup.1, L.sup.2 and m have the meaning given in claim 1 are suitable as components of liquid-crystalline media.