Use of low molecular-weight or polymeric organic compounds which are present in the columnar-helical phase and have liquid-crystalline properties

US5798197A · kind A · utility

Assignee

• BASF SE

Inventors

• Wolfgang Paulus · Lam, DE
• Lukas Haussling · Bad Dürkheim, DE
• Karl Siemensmeyer · Bischofswerda, DE
• Karl-Heinz Etzbach · Bischofswerda, DE
• Dieter Adam · Hof, DE
• Juergen Simmerer · Bayreuth, DE
• Helmut Ringsdorf · Mainz, DE
• Peter Schuhmacher · Mannheim, DE
• Dietrich Haarer · Bayreuth, DE
• Sundeep Kumar · Mainz, DE

Key dates

• Filing date: Feb 20, 1997
• Grant date: Aug 25, 1998
• Expiry date: Feb 20, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The use of low molecular-weight or polymeric organic compounds which are present in the columnar-helical phase and have liquid-crystalline properties, as photoconductors or in electronic components, corresponding photoconductive layers, an electrophotographic recording material and a method for enhancing the photoconductivity.