Furochroman derivatives

US7678929B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Axel Jansen · Darmstadt, DE
• Andreas Taugerbeck · Darmstadt, DE
• Melanie Klasen-Memmer · Heuchelheim, DE
• Georg Bernatz · Darmstadt, DE

Key dates

• Filing date: Dec 3, 2007
• Grant date: Mar 16, 2010
• Expiry date: Mar 3, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2019/3425
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disclosed are furochroman compounds of formula Iliquid-crystal media which contains the compounds of formula I, and the use of the media in electro-optical displays, in particular in VAN LCDs.