Difluorovinyl ethers

US5723682A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Eike Poetsch · Mühltal, DE
• Werner Binder · Dieburg, DE
• Michael Kompter · Riedstadt, DE
• Joachim Krause · Dieburg, DE
• Kazuaki Tarumi · Seeheim-Jugenheim, DE
• Ekkehard Bartmann · Langen (Hessen), DE

Key dates

• Filing date: Mar 5, 1997
• Grant date: Mar 3, 1998
• Expiry date: Mar 5, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2019/0459
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to difluorovinyl ethers of the general formula I ##STR1## in which R, A, X and m are as defined in claim 1, and to the use of these compounds as components of liquid-crystalline media, and to liquid-crystal and electro-optical display elements which contain the novel liquid-crystalline media.