Media containing thiazole derivatives and thiadiazole derivatives and having a smectic liquid-crystalline phase

US5478496A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• George W. Gray · Corby, GB
• Richard M. Scrowston · Westfield, GB
• Kenneth J. Toyne · Cudworth, GB
• David Lacey · Hope, GB
• Adam Jackson · Trondheim, NO
• Joachim Krause · Dieburg, DE
• Eike Poetsch · Mühltal, DE
• Thomas Geelhaar · Mainz, DE
• Georg Weber · Langen (Hessen), DE
• Andreas Wachtler · Griesheim, DE

Key dates

• Filing date: Nov 30, 1992
• Grant date: Dec 26, 1995
• Expiry date: Nov 30, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K19/3497
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to the use of chiral and/or achiral compounds, containing at least one structural element from the group comprising PA1 thiazole-2,4-diyl PA1 thiazole-2,5-diyl PA1 1,2,4-thiadiazole-2,5-diyl PA1 1,2,4-thiadiazole-3,5-diyl as components of media having a smectic liquid-crystalline phase.