Electrophotographic medium with perylene-3,4,9,10-tetracarboxylic acid N,N'-bis-(2',6'-dichlorophenyl)-diimide

US4419427A · kind A · utility

Assignee

• BASF SE

Inventors

• Fritz Graser · Ludwigshafen, DE
• Gerhard Hoffmann · Otterstadt, DE
• Reinhold J. Leyrer · Schifferstadt, DE
• Peter Neumann · Wiesloch, DE

Key dates

• Filing date: Mar 16, 1982
• Grant date: Dec 6, 1983
• Expiry date: Mar 16, 2002

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G5/0675
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An electrophotographic recording medium which consists essentially of an electrically conductive base and a photosemiconductive double layer which comprises a first layer containing charge carrier-producing dyes, and a second layer containing one or more compounds which are charge carrier-transporting when exposed to light, wherein perylene-3,4,9,10-tetracarboxylic acid N,N'-bis-(2',6'-dichlorophenyl)-diimide is employed as the charge carrier-producing dye, and the production of this recording medium.