发明授权
- 专利标题: Process for producing a dichlorotin phthalocyanine crystal
- 专利标题(中): 二氯苯酞菁结晶的制造方法
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申请号: US240483申请日: 1994-05-10
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公开(公告)号: US5463043A公开(公告)日: 1995-10-31
- 发明人: Katsumi Nukada , Akira Imai , Katsumi Daimon , Masakazu Iijima , Kiyokazu Mashimo , Yasuo Sakaguchi , Ichiro Takegawa
- 申请人: Katsumi Nukada , Akira Imai , Katsumi Daimon , Masakazu Iijima , Kiyokazu Mashimo , Yasuo Sakaguchi , Ichiro Takegawa
- 申请人地址: JPX Tokyo
- 专利权人: Fuji Xerox Co., Ltd.
- 当前专利权人: Fuji Xerox Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX3-274872 19910927; JPX4-21683 19920113; JPX4-027448 19920120
- 主分类号: C09B67/50
- IPC分类号: C09B67/50 ; G03G5/05 ; G03G5/06 ; C09B47/04
摘要:
A novel dichlorotin phthalocyanine crystal having distinct diffraction peaks at 8.5.degree., 11.2.degree., 14.5.degree., and 27.2.degree. of the Bragg angles (2.theta..+-.0.2) in the X-ray diffraction spectrum; a process for producing the dichlorotin phthalocyanine crystal, comprising mechanically grinding a known dichlorotin phthalocyanine crystal together with an inorganic salt, followed by, if desired, a solvent treatment; an electrophotographic photoreceptor containing, in the photosensitive layer thereof, the dichlorotin phthalocyanine crystal; and a coating composition for producing an electrophotographic photoreceptor, comprising the dichlorotin phthalocyanine crystal, a binder resin, and an acetic ester solvent. The photoreceptor exhibits high sensitivity and excellent durability. The coating composition maintains the dichlorotin phthalocyanine crystal in its desired form either while being prepared or after being coated.