Photoconductive elements having a polymeric barrier layer
    3.
    发明公开
    Photoconductive elements having a polymeric barrier layer 审中-公开
    Eine Sperrschicht enthaltendephotoleitfähigeElemente

    公开(公告)号:EP1293838A1

    公开(公告)日:2003-03-19

    申请号:EP02020591.0

    申请日:2002-09-18

    IPC分类号: G03G5/14

    摘要: Disclosed are photoconductive elements including a conductive support, e.g., an electrically conductive film, drum, or belt, on which a negatively chargeable photoconductive layer is disposed. An electrical barrier layer is disposed between the conductive support and the photoconductive layer. The barrier layer provides a high energy barrier to the injection of positive charges, but transports electrons under an applied electric field. In embodiments, the barrier layer can transport charge by electronic, or both electronic and ionic mechanisms, and, is not substantially affected by humidity changes. The barrier layer includes a polyester-co-imides, polyesterionomer-co-imides, or polyamide-co-imides having covalently bonded as repeat units in the polymer chain, aromatic tetracarbonylbisimide groups of the formula:
    or
    wherein Ar 1 and Ar 2 respectively represent tetravalent or trivalent aromatic groups of 6 to about 20 carbon atoms, and X is O, C(CF 3 ) 2 , S=O or SO 2 .

    摘要翻译: 公开了包括导电性支持体(例如导电膜,鼓或带)的光电导元件,其上设置有带负电荷的光导电层。 电阻挡层设置在导电支撑体和光电导层之间。 阻挡层为注入正电荷提供了高能量势垒,但在施加的电场下传输电子。 在实施例中,阻挡层可以通过电子或电子和离子机制两者输送电荷,并且基本上不受湿度变化的影响。 阻挡层包括在聚合物链中共价键合作为重复单元的聚酯 - 共 - 酰亚胺,聚酯型聚异氰酸酯 - 共 - 酰亚胺或聚酰胺 - 共 - 酰亚胺,具有下式的芳族四羰基双酰亚胺基团:其中Ar 1和Ar 2分别表示6至约20个碳原子的四价或三价芳族基团,X是O,C(CF 3)2,S = O或SO 2。

    Novel polymer and photoconductive element having a polymeric barrier layer
    4.
    发明公开
    Novel polymer and photoconductive element having a polymeric barrier layer 审中-公开
    Neues Polymer undPhotoleitfähigesElement mit einer polymeren Sperrschicht

    公开(公告)号:EP1156372A1

    公开(公告)日:2001-11-21

    申请号:EP01111126.7

    申请日:2001-05-09

    IPC分类号: G03G5/14 C08G73/10 C08G73/14

    摘要: In a photoconductive element comprising a conductive support, e.g., an electrically conductive film, drum or belt on which a negatively chargeable photoconductive layer is formed, an electrical barrier layer is formed between the support and the photoconductive layer. The barrier layer provides a high energy barrier to the injection of positive charges but transports electrons under an applied electric field. The barrier layer of the invention transports charge by electronic rather than ionic mechanisms and, therefore, is not substantially affected by humidity changes. The barrier layer comprises a polyester-co-imide, polyesterionomer-co-imide or polyamide-co-imide having covalently bonded as repeating units in the polymer chain, aromatic tetracarboxylbisimide groups of the formula:

       wherein Ar 1 and Ar 2 represent, respectively, tetravalent and trivalent aromatic groups of 6 to 20 carbon atoms.

    摘要翻译: 在包含导电性支持体(例如形成有可带电电荷的光导电层的导电膜,鼓或带)的光电导元件中,在支撑体和光电导层之间形成电阻挡层。 阻挡层为注入正电荷提供了高能量势垒,但在施加的电场下传输电子。 本发明的阻挡层通过电子而不是离子机制输送电荷,因此基本上不受湿度变化的影响。 阻挡层包括在聚合物链中共价键合作为重复单元的聚酯 - 共 - 酰亚胺,聚酯共聚物 - 共 - 酰亚胺或聚酰胺 - 共 - 酰亚胺,其中Ar 1和Ar 2分别代表四价和 6-20个碳原子的三价芳族基团。

    Two-stage milling process for preparing cocrystals of titanyl fluorophthalocyanine and titanyl phthalocyanine, and electrophotographic element containing the same
    6.
    发明公开
    Two-stage milling process for preparing cocrystals of titanyl fluorophthalocyanine and titanyl phthalocyanine, and electrophotographic element containing the same 有权
    两阶段研磨处理为钛氧基酞菁和Titanylfluorophthalocyanin的混合晶体的制备方法和含有电子元件

    公开(公告)号:EP1426416A1

    公开(公告)日:2004-06-09

    申请号:EP03026157.2

    申请日:2003-11-14

    摘要: An amorphous mixture consisting essentially of TiOFPc and TiOPc and containing more than 75 weight percent of substantially chlorine-free TiOPc is produced by forming a mixture of crude crystalline TiOFPc and crude crystalline, substantially chlorine-free TiOPc that contains less than 80 weight percent TiOPc, treating the mixture under conditions effective to form a substantially amorphous mixture of TiOFPc and TiOPc containing less than 75 weight percent TiOPc, which is then treated with water, and dried. A further amount of crude crystalline, substantially chlorine-free TiOPc sufficient to form a new mixture containing more than 75 weight percent of substantially chlorine-free TiOPc is added, and the new mixture is converted to a substantially amorphous mixture of TiOFPc and TiOPc. A nanoparticulate cocrystalline composition is obtained by forming a slurry in an organic solvent of the dried substantially amorphous mixture, and wet milling the slurry to form the cocrystalline composition.

    摘要翻译: 的无定形混合物基本上TiOFPc和酞菁氧钛的由...组成和基本含有无氯酞菁氧钛的超过75%(重量)是通过形成粗晶TiOFPc和粗晶的混合物产生的,基本上不含氯的酞菁氧钛确实包含小于80重量%的酞菁氧钛 治疗有效的条件下该混合物以形成的酞菁氧钛和TiOFPc含有少于75重量%的酞菁氧钛的所有其然后用水处理,并干燥基本上无定形的混合物。 粗结晶的再量的,基本上是无氯的酞菁氧钛足以形成含有大于75重量%的基本上不含氯的酞菁氧钛的新混合物,并将该新的混合物被转化成TiOFPc和酞菁氧钛的基本上无定形的混合物。 纳米微粒组合物共结晶态通过形成在对干燥的基本上无定形的混合物的有机溶剂中,并湿研磨该浆料,以形成共结晶态组合物的淤浆得到。

    Process for forming cycrystals containing chlorine-free titanyl phthalocyanine and low concentration of titanyl fluorophthalocyanine using organic milling aid
    7.
    发明公开
    Process for forming cycrystals containing chlorine-free titanyl phthalocyanine and low concentration of titanyl fluorophthalocyanine using organic milling aid 有权
    使用有机研磨助剂在niedrieger浓度形成Chlorfreientitanylphthalocyanin和Titanylfluorophthalocyanin的共晶体的方法

    公开(公告)号:EP1426415A1

    公开(公告)日:2004-06-09

    申请号:EP03025717.4

    申请日:2003-11-10

    摘要: In a process for forming an amorphous pigment mixture consisting essentially of TiOPc and TiOFPc and containing more than about 75 weight percent of TiOPc, a mixture of crude crystalline TiOPc and TiOFPc pigments in a weight ratio of at least 75:25 TiOPc: TiOFPc is combined with at least about 5 wt.%, based on the total weight of TiOPc and TiOFPc, of an organic milling aid. The mixture is treated under conditions effective to form a substantially amorphous pigment mixture of TiOPc and TiOFPc. The organic milling aid can be separated from the substantially amorphous pigment mixture, which can be converted to a nanoparticulate cocrystalline TiOPc/TiOFPc composition.

    摘要翻译: 在用于形成无定形颜料混合物基本上由酞菁氧钛和TiOFPc的和含有多于约75重量%的TiOPc,粗酞菁氧钛结晶及TiOFPc颜料至少75:25酞菁氧钛的重量比的混合物的方法:TiOFPc被组合 具有至少约5%重量,基于酞菁氧钛和TiOFPc的总重量的有机碾磨助剂的,。 将混合物有效地形成酞菁氧钛和TiOFPc的基本上无定形的颜料混合物的条件下进行处理。 将有机研磨助剂可以从基本无定形的颜料混合物,其可以被转化为纳米颗粒共结晶态的TiOPc / TiOFPc组合物中分离出来。

    Cocrystals containing high concentration of chlorine titanyl phthalocyanine and low concentration of titanyl fluorophthalocyanine, and electrophotographic element containing same
    8.
    发明公开
    Cocrystals containing high concentration of chlorine titanyl phthalocyanine and low concentration of titanyl fluorophthalocyanine, and electrophotographic element containing same 有权
    在低浓度的高浓度和氟化钛氧基酞菁,氯化氧钛酞菁的混晶,并包含含有它们的电子照相元件

    公开(公告)号:EP1426418A1

    公开(公告)日:2004-06-09

    申请号:EP03026853.6

    申请日:2003-11-24

    摘要: In a process for forming an amorphous TiOPc/TiOFPc pigment mixture containing a low concentration of TiOFPc, a mixture containing phthalonitrile and titanium tetrachloride is subjected to reaction conditions effective to form lightly chlorine-substituted crude crystalline Cl-TiOPc. The lightly chlorine-substituted crude crystalline Cl-TiOPc is combined with crude crystalline TiOFPc in a weight ratio from about 75:25 Cl-TiOPc:TiOFPc to about 99.5:0.5 Cl-TiOPc:TiOFPC to form a crude crystalline pigment mixture, which is treated under conditions effective to form a substantially amorphous pigment mixture of Cl-TiOPc and TiOFPc. The substantially amorphous mixture can subsequently be converted to a nanocrystalline Cl-TiOPc/TiOFPc pigment composition containing a low concentration of TiOFPc.

    摘要翻译: 在用于形成含上的TiOFPc低浓度的无定形的TiOPc / TiOFPc颜料混合物的方法,将含有邻苯二甲腈与四氯化钛的混合物进行有效地形成轻氯substituiertem粗晶CL-酞菁氧钛的反应条件。 轻度氯substituiertem粗晶CL-酞菁氧钛是结合从约75:25 CL-酞菁氧钛的重量比粗结晶TiOFPc:TiOFPc至约99.5:0.5 CL-酞菁氧钛:TiOFPc以形成粗结晶的颜料混合物,所有这些是 有效形成CL-酞菁氧钛和TiOFPc的基本上无定形的颜料混合物的条件下进行处理。 基本上无定形混合物可以随后被转化为纳米晶体CL-酞菁氧钛/ TiOFPc颜料组合物含TiOFPc的低浓度。

    Self-dispersing titanyl phthalocyanine pigment compositions and electrophotographic charge generation layers containing same
    9.
    发明公开
    Self-dispersing titanyl phthalocyanine pigment compositions and electrophotographic charge generation layers containing same 审中-公开
    自分散性含有本Titanylphthalocyaninpigmentzusammensetzungen和电子电荷产生层

    公开(公告)号:EP1426417A1

    公开(公告)日:2004-06-09

    申请号:EP03026158.0

    申请日:2003-11-14

    摘要: In a process for forming a self-dispersing crystalline phthalocyanine pigment composition of monodisperse nanoparticles, a mixture containing titanyl fluorophthalocyanines, unsubstituted titanyl phthalocyanine, and an organic monomeric dispersant but substantially free of organic solvents or inorganic salts is dry milled, thereby forming a substantially amorphous phthalocyanine pigment composition. The substantially amorphous composition is contacted with an organic solvent having a hydrogen bonding parameter gamma c lower than about 8, thereby forming a self-dispersing cocrystalline phthalocyanine pigment composition of monodisperse nanoparticles containing titanyl fluorophthalocyanines and titanyl phthalocyanine, which can be used to form the charge generation layer of an electrophotographic element.

    摘要翻译: 在用于形成单分散的纳米颗粒的自分散结晶型酞菁颜料组合物的方法,含有氧钛fluorophthalocyanines,unsubstituiertem钛氧基酞菁的混合物,和有机单体的分散剂,但基本上不含有机溶剂或无机盐是干磨,从而形成基本上无定形的 酞菁颜料组合物。 基本上无定形组合物与有机溶剂具有氢键合参数伽玛下比约8以下,从而形成含有氧钛fluorophthalocyanines和钛氧基酞菁单分散的纳米颗粒的自分散性共结晶态酞菁颜料组合物,其可用于形成电荷产生接触 电照相元件的层。