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14 records (took 0.016 seconds)

    Imaging members
    1.
    发明授权
    Imaging members 失效
    成像成员

    公开(公告)号：US07291428B2

    公开(公告)日：2007-11-06

    申请号：US11611555

    申请日：2006-12-15

    Applicant: Satchidanand Mishra ,  Anthony M. Horgan ,  Robert C. U. Yu ,  Dasarao K. Murti ,  Suresh K. Ahuja

    Inventor： Satchidanand Mishra ,  Anthony M. Horgan ,  Robert C. U. Yu ,  Dasarao K. Murti ,  Suresh K. Ahuja

    IPC: G03G5/047

    CPC classification number: G03G5/0525 ,  G03G5/0528 ,  Y10S430/103

    Abstract: An electrophotographic imaging member having a charge generating layer and a charge transport layer overlayed thereon is provided. The charge transport layer has a lower surface and an upper surface, wherein the lower surface is in contiguous contact with the charge generating layer. The charge transport layer comprises a film forming polymer binder and a charge transport compound molecularly dispersed or dissolved therein to form a solid solution. The concentration of the charge transport compound in the charge transport layer decreases from the lower surface to the upper surface. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improved wear resistance, excellent imaging member electrical performance, and improved copy print out quality.

    Abstract translation: 提供具有覆盖在其上的电荷产生层和电荷输送层的电子照相成像构件。 电荷输送层具有下表面和上表面，其中下表面与电荷产生层连续接触。 电荷输送层包括成膜聚合物粘合剂和分子分散或溶解在其中以形成固溶体的电荷输送化合物。 电荷输送化合物在电荷输送层中的浓度从下表面向上表面减小。 在这种结构中，所得到的电荷输送层表现出增强的开裂抑制，改善的耐磨性，优异的成像构件的电性能，以及改善的复制印刷质量。

    Toner processes
    4.
    发明授权
    Toner processes 有权
    墨粉处理

    公开(公告)号：US07186494B2

    公开(公告)日：2007-03-06

    申请号：US10413599

    申请日：2003-04-14

    Applicant: Suresh K. Ahuja ,  Chieh-Min Cheng

    Inventor： Suresh K. Ahuja ,  Chieh-Min Cheng

    IPC: G03G9/08

    CPC classification number: C08J3/215 ,  G03G9/0804 ,  G03G9/08797

    Abstract: A toner process comprising mixing a colorant dispersion with a latex, a wax dispersion, and a coagulant, and wherein the latex contains a polymer with a static yield stress of from about 0.05 to about 3 dyne/cm2, a viscosity for the polymer latex of from about 5 to about 35 centipoises (cps), and wherein said toner product possesses a volume average particle size distribution index GSDv of equal to or less than about 1.27, a number average particle size distribution index GSDn of equal to or less than about 1.30, a low number average particle size index GSDn50/16 of equal to about or less than about 1.32, and a ratio of the volume average particle size distribution index GSDv to a number average particle size distribution index GSDn of from about 0.93 to about 1.

    Abstract translation: 一种调色剂方法，包括将着色剂分散体与胶乳，蜡分散体和凝结剂混合，并且其中所述胶乳含有静态屈服应力为约0.05至约3达因/ cm 2的聚合物， ，聚合物胶乳的粘度为约5至约35厘泊（cps），并且其中所述调色剂产品具有等于或小于约1.27的体积平均粒度分布指数GSDv，数均粒径分布指数GSDn 等于或小于约1.30，等于或小于约1.32的低数均粒径指数GSDn 50/16 /以及体积平均粒度分布指数GSDv与 数均粒径分布指数GSDn为约0.93至约1。

    Imaging members
    5.
    发明授权
    Imaging members 失效

    公开(公告)号：US07166397B2

    公开(公告)日：2007-01-23

    申请号：US10744369

    申请日：2003-12-23

    Applicant: Satchidanand Mishra ,  Anthony M. Horgan ,  Robert C. U. Yu ,  Dasarao K. Murti ,  Suresh K. Ahuja

    Inventor： Satchidanand Mishra ,  Anthony M. Horgan ,  Robert C. U. Yu ,  Dasarao K. Murti ,  Suresh K. Ahuja

    IPC: G03G5/047

    CPC classification number: G03G5/0525 ,  G03G5/0528 ,  Y10S430/103

    Abstract: An electrophotographic imaging member having a charge generating layer and a charge transport layer overlayed thereon is provided. The charge transport layer has a lower surface and an upper surface, wherein the lower surface is in contiguous contact with the charge generating layer. The charge transport layer comprises a film forming polymer binder and a charge transport compound molecularly dispersed or dissolved therein to form a solid solution. The concentration of the charge transport compound in the charge transport layer decreases from the lower surface to the upper surface. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improved wear resistance, excellent imaging member electrical performance, and improved copy print out quality.

    Random copolymers made by anionic polymerization, toners incorporating these copolymers and method for the manufacture thereof
    9.
    发明授权
    Random copolymers made by anionic polymerization, toners incorporating these copolymers and method for the manufacture thereof 失效
    通过阴离子聚合制备的无规共聚物，掺入这些共聚物的调色剂及其制造方法

    公开(公告)号：US5532327A

    公开(公告)日：1996-07-02

    申请号：US394580

    申请日：1995-02-27

    Applicant: Robert D. Bayley ,  Thomas R. Hoffend ,  Timothy J. Fuller ,  Suresh K. Ahuja

    Inventor： Robert D. Bayley ,  Thomas R. Hoffend ,  Timothy J. Fuller ,  Suresh K. Ahuja

    IPC: C08F236/10 ,  C08F4/48

    CPC classification number: C08F236/10

    Abstract: A solution polymerization process for producing an organic polymer from styrene and at least one other polymerizable monomer comprising providing a liquid reaction medium suitable for conducting said polymerization, wherein the reaction medium contains styrene and a polymerizable monomer other than styrene; and, anionically polymerizing styrene and monomer, thereby forming random copolymer chains, wherein the total quantity of said styrene used in said polymerization is at least 50% by weight based on the total weight of styrene and other polymerizable monomers used in the polymerization. A second embodiment comprises a copolymer made by the above-described method.A third embodiment comprises a process for forming a toner, wherein the process comprises providing a liquid reaction medium suitable for conducting a solution polymerization, the reaction medium containing at least two polymerizable monomers; anionically polymerizing the monomers, thereby forming random and nearly random copolymer chains; finely dividing the copolymer into particles; and, incorporating said particles into a composition for use as a toner. A fourth embodiment comprises a toner made by extrusion with pigment or colorant and change control additive to form small particles.A fifth embodiment comprises a solution polymerization process for producing an organic polymer wherein a difunctional initiator is used to initiate said polymerization.

    Abstract translation: 一种从苯乙烯和至少一种其它可聚合单体制备有机聚合物的溶液聚合方法，包括提供适于进行所述聚合的液体反应介质，其中反应介质含有苯乙烯和除苯乙烯之外的可聚合单体; 并且阴离子聚合苯乙烯和单体，从而形成无规共聚物链，其中所述聚合中使用的所述苯乙烯的总量基于聚合中使用的苯乙烯和其它可聚合单体的总重量为至少50重量％。 第二实施方案包括通过上述方法制备的共聚物。 第三实施方案包括形成调色剂的方法，其中所述方法包括提供适于进行溶液聚合的液体反应介质，所述反应介质含有至少两种可聚合单体; 使单体阴离子聚合，从而形成无规和几乎无规的共聚物链; 将共聚物细分成颗粒; 并将所述颗粒结合到用作调色剂的组合物中。 第四实施方案包括通过与颜料或着色剂一起挤出而制成的调色剂和改变控制添加剂以形成小颗粒。 第五实施方案包括用于制备有机聚合物的溶液聚合方法，其中使用双官能引发剂引发所述聚合。

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