Vinyl compounds, and a liquid-crystalline medium

US5403512A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Ekkehard Bartmann · Langen (Hessen), DE
• Herbert Plach · Darmstadt, DE
• Rudolf Eidenschink · Mainz, DE
• Volker Reiffenrath · Roßdorf, DE
• Detlef Pauluth · Ober-Ramstadt, DE
• Eike Poetsch · Mühltal, DE
• Sabine Schoen · Darmstadt, DE
• Volker Meyer · Groß-Zimmern, DE
• Michael Junge · Munich, DE
• Reinhard Hittich · Seeheim-Jugenheim, DE

Key dates

• Filing date: Aug 5, 1992
• Grant date: Apr 4, 1995
• Expiry date: Aug 5, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2019/0444
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Vinyl compounds of the formula I ##STR1## in which the variables are as described in the claims. The compounds are useful as components in liquid-crystalline media.