Low-molecular-weight and polymeric liquid-crystalline benzotriazoles, and the use thereof

US5429770A · kind A · utility

Assignee

• BASF SE

Inventors

• Friedrich Closs · Bischofswerda, DE
• Karl Siemensmeyer · Bischofswerda, DE
• Dirk Funhoff · Heidelberg, DE

Key dates

• Filing date: May 18, 1994
• Grant date: Jul 4, 1995
• Expiry date: May 18, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K19/348
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Low-molecular-weight and polymeric liquid-crystalline 2-substituted benzotriazoles of the formula ##STR1## are used as photoconductors or electrophotographic recording materials or as fluorescent dyes for fluorescent displays.