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:
Aug. 06, 1991
Filed:
Jul. 17, 1990
Mitsubishi Kasei Corporation, Tokyo, JP;
Abstract
Disclosed herein is an electrophotographic photoreceptor having on a conductive base at least one charge generation layer and at least one charge transfer layer, which comprises a sulfonate ester compound represented by the general formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently hydrogen atom, halogen atom, cyano group, nitro group or alkyl group; R.sup.6, R.sup.7, R.sup.8 and R.sup.9 are independently hydrogen atom or halogen atom; and X is cyano group, alkoxycarbonyl group, optionally substituted aryloxycarbonyl group or optionally substituted aryl group, in the charge transfer layer. The electrophotographic photoreceptor according to the present invention has the excellent durability.