发明名称 Tetrazonium salt compound, disazo compound, method for preparing the same, and photosensitive material containing said disazo compound for use in electrophotography
摘要 The present invention relates to a tetrazonium salt compound having the following general formula (I), <IMAGE> (I) wherein X represents an anion functional group. The present invention further relates to a disazo compound having the following general formula (II), <IMAGE> (II) wherein A represents <IMAGE> <IMAGE> or <IMAGE> (wherein R represents an alkyl such as methyl, ethyl, propyl, butyl or the like, alkoxy, nitro, halogen, cyano or halomethyl group; n represents an integer of 0, 1, 2 or 3; and R may be the same or different when n is an integer of 2 or 3), and a method for preparing the same. The present invention still further relates to a photosensitive material for use in electrophotography, characterized by providing a photosensitive layer containing a disazo pigment having the following general formula (VII), <IMAGE> (VII) wherein A1 represents a coupler residue.
申请公布号 US4619878(A) 申请公布日期 1986.10.28
申请号 US19850745331 申请日期 1985.06.14
申请人 RICOH CO., LTD. 发明人 HASHIMOTO, MITSURU
分类号 C09B35/233;G03G5/06;(IPC1-7):G03G5/06 主分类号 C09B35/233
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