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18 条记录 (耗时 0.038 秒)

    Processes for pigment dispersion and articles therefrom
    3.
    发明授权
    Processes for pigment dispersion and articles therefrom 失效
    颜料分散方法及其制品

    公开(公告)号：US5449582A

    公开(公告)日：1995-09-12

    申请号：US254721

    申请日：1994-06-06

    申请人： Bing R. Hsieh ,  Andrew R. Melnyk ,  Jerry H. Taylor ,  Paul A. Harmer

    发明人： Bing R. Hsieh ,  Andrew R. Melnyk ,  Jerry H. Taylor ,  Paul A. Harmer

    IPC分类号： G03G5/05 ,  G03G5/06

    CPC分类号： G03G5/06 ,  G03G5/0507 ,  G03G5/051 ,  G03G5/0525

    摘要： A process for preparing ultrafine pigment dispersions comprising providing a solubilized mixture of pigment-Lewis acid complex and an aprotic organic solvent; precipitating the resulting solubilized complex into a protic solvent thereby forming a dispersion of ultrafine pigment particles; removing the aprotic and protic solvents to afford a wet cake containing finely divided pigment particles; optionally neutralizing and washing the wet cake particles; and redispersing the resulting ultrafine pigment particles in an aqueous solution, an organic solvent, or mixtures thereof, and a binder resin to form an ultrafine pigment and binder resin dispersion.

    摘要翻译： 一种制备超细颜料分散体的方法，包括提供颜料 - 路易斯酸配合物和非质子有机溶剂的溶解混合物; 将所得溶解的络合物沉淀成质子溶剂，从而形成超细颜料颗粒的分散体; 除去非质子和质子溶剂，得到含有细碎颜料颗粒的湿饼; 任选地中和并洗涤湿饼颗粒; 并将所得超细颜料颗粒再分散在水溶液，有机溶剂或其混合物中，以及粘合剂树脂，以形成超细颜料和粘合剂树脂分散体。

    Process for preparing an electrophotographic imaging member
    6.
    发明授权
    Process for preparing an electrophotographic imaging member 失效
    用于制备电子照相成像构件的方法

    公开(公告)号：US4921773A

    公开(公告)日：1990-05-01

    申请号：US292032

    申请日：1988-12-30

    申请人： Andrew R. Melnyk ,  Richard H. Nealey ,  Paul J. Brach ,  Leon A. Teuscher

    发明人： Andrew R. Melnyk ,  Richard H. Nealey ,  Paul J. Brach ,  Leon A. Teuscher

    IPC分类号： G03G5/047 ,  G03G5/05

    CPC分类号： G03G5/0525

    摘要： A process for preparing an electrophotographic imaging member comprising a substrate having an electrically conductive surface, a charge generating layer and a charge transport layer contiguous to the charge generating layer, the process comprising preparing a dispersion of finely divided photoconductive particles in a liquid in which the particles are insoluble, the liquid comprising at least 0.25 percent by weight of an alcohol based on the total weight of the liquid, applying a thin coating of the dispersion on a substrate, evaporating substantially all of the liquid from the coating, and embedding the particles in a film forming polymer matrix to form the charge generating layer.

    摘要翻译： 一种用于制备电子照相成像构件的方法，包括具有导电表面的基底，电荷产生层和与电荷产生层邻接的电荷输送层，该方法包括在液体中制备细碎的光电导颗粒的分散体，其中 颗粒是不溶的，液体基于液体的总重量包含至少0.25重量％的醇，将分散体的薄涂层施加在基材上，基本上蒸发来自涂层的所有液体，并且包埋颗粒 在成膜聚合物基质中形成电荷产生层。

    Photoreceptor and method involving residual voltages
    8.
    发明授权
    Photoreceptor and method involving residual voltages 有权
    受光器和涉及残余电压的方法

    公开(公告)号：US06406823B2

    公开(公告)日：2002-06-18

    申请号：US09736108

    申请日：2000-12-13

    申请人： Andrew R. Melnyk ,  Paul A. Harmer ,  Kathleen M. Carmichael

    发明人： Andrew R. Melnyk ,  Paul A. Harmer ,  Kathleen M. Carmichael

    IPC分类号： G03G1301

    CPC分类号： G03G5/0659 ,  G03G5/047 ,  G03G5/0657 ,  G03G5/0696

    摘要： A photoreceptor including: a charge transport layer; a top charge generating layer sensitive to a first light wavelength; a bottom charge generating layer sensitive to a second light wavelength; and a substrate, wherein the charge transport layer is positioned anywhere above the substrate, wherein the photoreceptor exhibits in response to exposure by the first light wavelength a first photodischarge curve having a first residual voltage and the photoreceptor exhibits in response to exposure by the second light wavelength a second photodischarge curve having a second residual voltage.

    摘要翻译： 感光体包括：电荷输送层; 对第一光波长敏感的顶部电荷产生层; 对第二光波长敏感的底部电荷产生层; 以及基板，其中所述电荷输送层位于所述基板上方的任何地方，其中所述感光体响应于所述第一光波长的曝光而呈现具有第一残余电压的第一光电放电曲线，并且所述感光体响应于所述第二光的曝光而显示 波长具有第二残余电压的第二光电放电曲线。

    Electrophotographic imaging member having an improved charge transport layer
    9.
    发明授权
    Electrophotographic imaging member having an improved charge transport layer 失效
    具有改进的电荷传输层的电子照相成像构件

    公开(公告)号：US5863685A

    公开(公告)日：1999-01-26

    申请号：US914565

    申请日：1997-08-19

    申请人： Paul J. DeFeo ,  John F. Yanus ,  Damodar M. Pai ,  Andrew R. Melnyk

    发明人： Paul J. DeFeo ,  John F. Yanus ,  Damodar M. Pai ,  Andrew R. Melnyk

    IPC分类号： G03G5/00 ,  G03G5/04 ,  G03G5/05 ,  G03G5/06 ,  G03G5/10 ,  G03G5/047

    CPC分类号： G03G5/0614 ,  G03G5/0525 ,  G03G5/10

    摘要： A flexible electrophotographic imaging member including a supporting substrate coated with at least one imaging layer including hole transporting material containing a hole transporting molecule dissolved or molecularly dispersed in a film forming binder and coated from a mixture of solvents including a low point boiling solvent and a small concentration of high boiling point solvent. Preferably, the flexible electrophotographic imaging member is free of an anticurl backing layer, the imaging member including a supporting substrate uncoated on one side and coated on the opposite side with at least a charge generating layer and a charge transport layer containing hole transporting material dissolved or molecularly dispersed in a film forming binder and coated from a mixture of solvents containing a low boiling point solvent and a small concentration of high boiling point solvent.

    摘要翻译： 一种柔性电子照相成像构件，包括涂覆有至少一个成像层的支撑基板，所述成像层包括空穴传输材料，所述成像层含有溶解或分子分散在成膜粘合剂中的空穴传输分子，并由包括低沸点溶剂和小溶剂的溶剂的混合物 高沸点溶剂的浓度。 优选地，柔性电子照相成像构件没有防反射背衬层，成像构件包括在一侧未涂覆并且在至少一个电荷产生层和包含空穴传输材料溶解的电荷输送层的相对侧上涂覆的支撑衬底， 分散分散在成膜粘合剂中，并由含有低沸点溶剂和低浓度沸点溶剂的溶剂的混合物涂覆。

    Dispersion process
    10.
    发明授权
    Dispersion process 有权
    分散过程

    公开(公告)号：US06190818B1

    公开(公告)日：2001-02-20

    申请号：US09519367

    申请日：2000-03-06

    申请人： Andronique Ioannidis ,  Markus R. Silvestri ,  Andrew R. Melnyk ,  Harry F. Freitas, Jr. ,  John S. Chambers ,  Harold F. Hammond ,  Cindy C. Chen

    发明人： Andronique Ioannidis ,  Markus R. Silvestri ,  Andrew R. Melnyk ,  Harry F. Freitas, Jr. ,  John S. Chambers ,  Harold F. Hammond ,  Cindy C. Chen

    IPC分类号： G03G500

    CPC分类号： G03G5/0525 ,  G03G5/06

    摘要： A process for forming a dispersion including forming a mixture including agglomerates of primary particles, a film forming binder and a solvent for the binder, the primary particles having an average size of less than about 500 nanometers, applying sufficient heat energy to the mixture while stirring to disintegrate the agglomerates into separate primary particles having an average size of less than about 500 nanometers to form a dispersion substantially free of agglomerates, and slowly cooling the dispersion to maintain separation between the primary particles in the dispersion.

    摘要翻译： 一种用于形成分散体的方法，包括形成包含初级颗粒，成膜粘合剂和粘合剂溶剂的混合物的混合物，初级颗粒具有小于约500纳米的平均尺寸，向混合物施加足够的热能，同时搅拌至 将附聚物分解成平均尺寸小于约500纳米的分离的初级颗粒，以形成基本上不含附聚物的分散体，并且冷却分散体以保持分散体中初级颗粒之间的分离。