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:
Jul. 30, 1991
Filed:
Feb. 08, 1990
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A novel electrophotographic photoreceptor for copying machine or photoprinter is provided comprising on an electrically conductive support a photoconductive layer, characterized in that said photoconductive layer contains a phthalocyanine pigment and a compound represented by the general formula (I), (II), (III), (IV) or (VI): ##STR1## wherein Z represents a sulfur or oxygen atom; Ar represents a monovalent aromatic hydrocarbon group or monovalent heterocyclic group; R.sub.3 represents a hydrogen atom, alkyl group, aryl group or aralkyl group; Ar and R.sub.3 may together form a ring; and R.sub.1 and R.sub.2 may be the same or different and each represents an alkyl group, aryl group or aralkyl group, ##STR2## wherein Z represents a sulfur or oxygen atom; R.sub.4 represents an alkyl group, alkoxy group, monovalent or bicyclic condensed aryl group, monocyclic or bicyclic condensed aryloxy group or monovalent group derived from heterocyclic group; the two R.sub.4 's in the general formula (IV) being the same or different; R.sup.5 and R.sup.6 may be the same or different and each represents a hydrogen atom, alkyl group, monocyclic or bicyclic condensed aryl group or monovalent group derived from heterocyclic group; R.sup.7 represents a methylene group, polymethylene group, branched alkanediyl group or arylene group; and R.sup.4 and R.sup.5 or R.sup.5 and R.sup.6 may be connected to each other, ##STR3## wherein Z represents a sulfur or oxygen atom; R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12 and R.sup.13 may be the same or different and each represents a hydrogen atom, an alkyl group, aryl group or monovalent group derived from heterocyclic group, R.sup.8 and R.sup.9 or R.sup.10 and R.sup.11 being optionally connected to each other; R.sup.8, R.sup.9, R.sup.10 and R.sup.11 in the general formula (V) being optionally connected to each other to form a crosslinked ring; and R.sup.14 represents a divalent arylene group, aralkylene group, polymethylene group or alkylene group.