公开(公告)号：US07135261B2

公开(公告)日：2006-11-14

申请号：US10645879

申请日：2003-08-22

申请人： Mikio Yamazaki

发明人： Mikio Yamazaki

IPC分类号： G03G5/047

CPC分类号： G03G5/0542 ,  G03G5/0546 ,  G03G5/0696 ,  G03G5/142

摘要： A multi-layered organic electrophotographic photoconductor exhibits superior stability in mass production and excellent adhesion ability with two layers contacting the charge generation layer and is free of contamination of the coating liquid for a charge transport layer during a dip-coating process due to dissolution of the charge generation layer. The multi-layered organic electrophotographic photoconductor includes a conductive substrate and layers including an undercoat layer containing a thermosetting resin, a charge generation layer containing a charge generation material and an organic binder resin, and a charge transport layer laminated sequentially on the substrate, wherein polydispersity defined by a ratio of a weight average molecular weight to a number average molecular weight of the organic binder resin is at least 4.0, and the weight average molecular weight is at least 7.0×104 in a distribution of a polystyrene-converted molecular weight obtained by gel permeation chromatography.

摘要翻译： 多层有机电子照相感光体在批量生产中表现出优异的稳定性和优异的粘附能力，其中两层接触电荷产生层，并且在浸涂过程中由于溶解而导致的电荷输送层用涂布液的污染 电荷产生层。 多层有机电子照相感光体包括导电性基板和包含含有热固性树脂的底涂层，含有电荷产生材料的电荷产生层和有机粘合剂树脂的层以及依次层叠在基板上的电荷传输层的多层分散性 由有机粘合剂树脂的重均分子量与数均分子量的比定义为至少4.0，并且重均分子量为7.0×10 4以上， 通过凝胶渗透色谱法得到的聚苯乙烯换算分子量。