The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 16, 1988
Filed:
Oct. 08, 1986
Wolfgang Wiedemann, Geisenheim-Johannisberg, DE;
Hans-Matthias Deger, Hofheim, DE;
Dieter Guenther, Kelkheim, DE;
Hoechst Aktiengesellschaft, , DE;
Abstract
An electrophotographic recording material comprising an electrically conducting layer support, an optional insulating intermediate layer, a photoconductive layer comprising at least one dyestuff as charge carrier-generating compound, and a layer containing a binder and photoconductor as charge-transport compound contains, as dyestuff in the photoconductive layer, a benzo-benzimidazo[1,2a]-quinoline derivative, preferably one represented by the formula ##STR1## Use of the dyestuff, in combination with a wide variety of photoconductors and binders, yields materials with excellent electrophotographic properties.