发明名称 Electrophotographic element containing disazo compound
摘要 A novel disazo compound is provided which is represented by the general formula (I): <IMAGE> (I) <IMAGE> (wherein, R1 and R2 each stands for hydrogen, a lower alkyl group with 1-4 carbon atoms, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aromatic group, or a substituted or unsubstituted hetero ring group. R1 and R2 may be the same or different. And, R1 and R2 may mutually bond to form a ring). This disazo compound may be obtained by diazotating 2,6-diaminoanthraquinone and reacting the same with a coupler represented by the general formula (IV): <IMAGE> (IV) (wherein, R1 and R2 are the same as defined above). Further, a multilayer type electrophotographic element is provided which comprises a charge carrier generating layer and a charge transfer layer and uses, as a charge carrier generating substance, a disazo compound represented by the general formula (I).
申请公布号 US4537844(A) 申请公布日期 1985.08.27
申请号 US19830536924 申请日期 1983.09.28
申请人 RICOH CO. LTD. 发明人 HASHIMOTO, MITSURU
分类号 C09B35/021;G03G5/06;(IPC1-7):G03G5/06;G03G5/14 主分类号 C09B35/021
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