Pyrans as liquid crystals

US7022865B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Mark John Goulding · Woodside, GB
• Warren Duffy · Southampton, GB
• Kevin Adlem · Bournemouth, GB
• Peer Kirsch · Darmstadt, DE
• Alexander Hahn · Groß-Gerau, DE
• Eike Poetsch · Mühltal, DE
• Werner Binder · Dieburg, DE
• Volker Meyer · Groß-Zimmern, DE
• Melanie Klasen-Memmer · Heuchelheim, DE
• Michael Heckmeier · Bensheim, DE
• Georg Lüssem · Ober-Ramstadt, DE

Key dates

• Filing date: May 27, 2004
• Grant date: Apr 4, 2006
• Expiry date: May 27, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2323/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A tetrahydropyran derivative comprising at least three cyclic rings and one aromatic endgroup of the formula A a process for preparing said tetrahydropyran derivatives, and the use of said tetrahydropyran derivatives as a component in a liquid crystal composition.