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1. 发明授权

US4925757A Electrophotographic photoreceptor for negative electrification 失效
标题翻译：用于负电气的电子照相感光体
公开(公告)号：US4925757A
公开(公告)日：1990-05-15
申请号：US228287
申请日：1988-08-04
申请人： Shigeki Takenouchi , Akira Hirano , Shiori Saito , Yoshihide Fujimaki
发明人： Shigeki Takenouchi , Akira Hirano , Shiori Saito , Yoshihide Fujimaki
IPC分类号： C09B23/12 , G03G5/06
CPC分类号： G03G5/0679 , C09B23/12 , G03G5/0668 , G03G5/0681 , Y10S430/103
摘要： An electrophotographic photoreceptor useful for negative electrification is disclosed. The photoreceptor comprises on an electroconductive substrate, a photo-sensitive layer containing a compound represented by general formula [A]: ##STR1## wherein, R.sub.1 represents a hydrogen atom or a substituent; R.sub.2 represents a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group; Ar.sub.1 represents a hydrogen atom, a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group; Ar.sub.2 represents a substituted or unsubstituted phenylene group or a substituted or unsubstituted naphthylene group; Ar.sub.3 and Ar.sub.4 independently represent a substituted or unsubstituted alkyl group, a substituted or unsubstituted phenyl group or a substituted or unsubstituted naphthyl group; and n represents an integer of 0 or 1; and a compound containing in its chemical structure a hindered phenolic structure unit.
摘要翻译：公开了一种用于负电荷的电子照相感光体。感光体在导电性基材上含有含有通式[A]表示的化合物的光敏层：其中，R1表示氢原子或取代基; R2表示氢原子，取代或未取代的烷基或取代或未取代的芳基; Ar 1表示氢原子，取代或未取代的苯基，取代或未取代的萘基; Ar2表示取代或未取代的亚苯基或取代或未取代的亚萘基; Ar 3和Ar 4独立地表示取代或未取代的烷基，取代或未取代的苯基或取代或未取代的萘基; n表示0或1的整数; 以及其化学结构中含有受阻酚结构单元的化合物。

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