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    Electrophotographic imaging member having two charge transport layers for limiting toner consumption
    1.
    发明授权
    Electrophotographic imaging member having two charge transport layers for limiting toner consumption 有权
    具有两个用于限制调色剂消耗的电荷输送层的电子照相成像构件

    公开(公告)号：US06379853B1

    公开(公告)日：2002-04-30

    申请号：US09722578

    申请日：2000-11-28

    申请人： Liang-bih Lin ,  Cindy C. Chen ,  Richard H. Nealey ,  Harold F. Hammond ,  Robert W. Nolley ,  Kenny-Tuan T. Dinh

    发明人： Liang-bih Lin ,  Cindy C. Chen ,  Richard H. Nealey ,  Harold F. Hammond ,  Robert W. Nolley ,  Kenny-Tuan T. Dinh

    IPC分类号： G03G5047

    CPC分类号： G03G5/0614 ,  G03G5/043 ,  G03G5/047 ,  G03G5/0616

    摘要： An electrophotographic imaging member including a supporting substrate, an optional charge blocking layer, an optional adhesive layer, a charge generating layer, and a charge transporting element including two sequentially deposited charge transport layers each including a hole transport material and an optional film forming binder. A first charge transport layer exhibits a first charge carrier transit time and second charge transport layer exhibits a second charge carrier transit time. The two charge transport layers are formed in one of two ways. First, each layer can be formed from a different charge transport material so that the charge mobility of the charge transport material of the first charge transport layer is about 4 to about 20 times lower than the charge mobility of the charge transport material of the second charge transport layer. Or, alternatively, each charge transport layer can be made using a different amount of the same charge transport material. In this case, the first charge transport layer includes of an amount of charge transport material that is about 5% to about 30% less than an amount of charge transport material used to form the second charge transport layer. In either case, the resulting electrophotographic imaging member exhibits a discharge surface potential at a light exposure greater than about 3 erg/cm2, at a post exposure delay between about 20 milliseconds and about 500 milliseconds that can be raised from about 20 to about 200 volts above a discharge potential of an imaging member having the same components as the imaging member of the present invention except having only a single charge transport layer with a thickness that is equivalent to the charge transporting element of the present invention.

    摘要翻译： 一种电子照相成像构件，包括支撑衬底，可选的电荷阻挡层，任选的粘合剂层，电荷产生层和电荷输送元件，其包括两个依次沉积的电荷输送层，每个电荷输送层包括空穴传输材料和任选的成膜粘合剂。 第一电荷传输层表现出第一电荷载流子传输时间，第二电荷传输层表现出第二电荷载流子传输时间。 两个电荷输送层以两种方式之一形成。 首先，每个层可以由不同的电荷传输材料形成，使得第一电荷输送层的电荷输送材料的电荷迁移率比第二电荷的电荷输送材料的电荷迁移率低约4至约20倍 运输层 或者，可以使用不同量的相同的电荷传输材料来制造每个电荷传输层。 在这种情况下，第一电荷输送层包含比用于形成第二电荷输送层的电荷输送材料量少约5％至约30％的电荷输送材料的量。 在任一情况下，所得到的电子照相成像构件在约20毫秒至约500毫秒之间的后曝光延迟时表现出大于约3埃格/厘米2的曝光时的放电表面电位，其可以从约20至约200伏 高于具有与本发明的成像构件相同的成分的成像构件的放电电位，只是具有与本发明的电荷输送元件相当的厚度的单个电荷输送层。

    Overcoated photoreceptors and methods of using overcoated photoreceptors
    7.
    发明授权
    Overcoated photoreceptors and methods of using overcoated photoreceptors 有权
    涂覆光感受器和使用外敷光感受器的方法

    公开(公告)号：US6103436A

    公开(公告)日：2000-08-15

    申请号：US182602

    申请日：1998-10-29

    申请人： John F. Yanus ,  Damodar M. Pai ,  Timothy J. Fuller ,  Paul J. DeFeo ,  Anthony T. Ward ,  Dale S. Renfer ,  William W. Limburg ,  Markus R. Silvestri ,  Harold F. Hammond ,  Robert W. Nolley

    发明人： John F. Yanus ,  Damodar M. Pai ,  Timothy J. Fuller ,  Paul J. DeFeo ,  Anthony T. Ward ,  Dale S. Renfer ,  William W. Limburg ,  Markus R. Silvestri ,  Harold F. Hammond ,  Robert W. Nolley

    IPC分类号： C08G69/36 ,  G03G5/05 ,  G03G5/06 ,  G03G5/147 ,  G03G5/047

    CPC分类号： G03G5/0571 ,  C08G69/36 ,  G03G5/0614 ,  G03G5/14708 ,  G03G5/14765

    摘要： An electrophotographic imaging member including a supporting substrate coated with at least photoconductive layer, a charge transport layer and an overcoating layer, the overcoating layer includinga hydroxy functionalized aromatic diamine anda hydroxy functionalized triarylamine dissolved or molecularly dispersed ina crosslinked polyamide matrix, the crosslinked polyamide prior to crosslinking being selected from the group consisting of materials represented by the following Formulae I and II: ##STR1## wherein: n is a positive integer sufficient to achieve a weight average molecular weight between about 5000 and about 100,000,R is an alkylene unit containing from 1 to 10 carbon atoms,between 1 and 99 percent of the R.sub.2 sites are --H, andthe remainder of the R.sub.2 sites are --CH.sub.2 --O--CH.sub.3, and ##STR2## wherein: m is a positive integer sufficient to achieve a weight average molecular weight between about 5000 and about 100000,R.sub.1 and R are independently selected from the group consisting of alkylene units containing from 1 to 10 carbon atoms, andbetween 1 and 99 percent of the R.sub.3 and R.sub.4 sites are --H, andthe remainder of the R.sub.3 and R.sub.4 sites are --CH.sub.2 --O--CH.sub.3.Coating compositions for the overcoating layer of this invention as well as methods of making and using the overcoated photoreceptor are also disclosed.

    摘要翻译： 一种电子照相成像构件，其包括涂覆有至少光电导层，电荷传输层和外涂层的支撑基底，所述外涂层包含溶解或分子分散在交联聚酰胺基质中的羟基官能化芳族二胺和羟基官能化三芳基胺，所述交联 交联前的聚酰胺选自由以下式I和II表示的材料组成的组：其中：n是足以实现约5000至约100,000的重均分子量的正整数，R是含有 1至10个碳原子，1至99％的R2位点为-H，其余部分为-CH2-O-CH3，其中：m为足以达到重均分子量的正整数 在约5000至约100000之间，R 1和R 2独立地选自亚烷基单元co 具有1至10个碳原子，并且1至99％的R 3和R 4位点是-H，并且R 3和R 4位点的其余部分是-CH 2 -O-CH 3。 还公开了本发明的外涂层的涂料组合物以及制备和使用外涂感光体的方法。

    Allyloxymethylatedpolyamide synthesis compositions and devices
    8.
    发明授权
    Allyloxymethylatedpolyamide synthesis compositions and devices 有权

    公开(公告)号：US6004709A

    公开(公告)日：1999-12-21

    申请号：US218682

    申请日：1998-12-22

    申请人： Dale S. Renfer ,  William W. Limburg ,  Timothy J. Fuller ,  John F. Yanus ,  Damodar M. Pai ,  Robert W. Nolley ,  Paul J. DeFeo ,  Anthony T. Ward

    发明人： Dale S. Renfer ,  William W. Limburg ,  Timothy J. Fuller ,  John F. Yanus ,  Damodar M. Pai ,  Robert W. Nolley ,  Paul J. DeFeo ,  Anthony T. Ward

    IPC分类号： C08F299/02 ,  C08G69/48 ,  C09D179/04 ,  G03G5/05 ,  G03G5/06 ,  G03G5/147 ,  G03G5/047

    CPC分类号： G03G5/0589 ,  G03G5/0578 ,  G03G5/0592 ,  G03G5/0614 ,  G03G5/14708 ,  G03G5/14773 ,  G03G5/14786 ,  G03G5/14791

    摘要： An allyloxymethylatedpolyamide composition is disclosed, the allyloxymethylatedpolyamide being represented by Formulae I and II: ##STR1## wherein: n is a positive integer sufficient to achieve a weight average molecular weight between about 5000 and about 100,000,R is an alkylene unit containing from 1 to 10 carbon atoms,between 1 and 99 percent of the R.sub.2 sites are --H, andbetween 1 and 99 percent of the R.sub.2 sites are --H, and the remainder of the R.sub.2 sites is between 25 percent and 99 percent --CH.sub.2 --O--(CH.sub.2).sub.w --CH.dbd.CH.sub.2, whereinw is 1, 2 or 3,between 1 and 75 percent of the R.sub.2 sites are --CH.sub.2 --O--R.sub.5, andR.sub.5 is an alkyl unit containing 1 to 4 carbon atoms, and ##STR2## wherein: m is a positive integer sufficient to achieve a weight average molecular weight between about 5000 and about 100,000,R.sub.1 and R are independently selected from the group consisting of alkylene units containing from 1 to 10 carbon atoms,between 1 and 99 percent of the R.sub.3 and R.sub.4 sites are --H, and between 25 percent and 99 percent of the remainder of the R.sub.3 and R.sub.4 sites are --CH.sub.2 --O--(CH.sub.2).sub.w --CH.dbd.CH.sub.2,whereinw is 1, 2 or 3, andbetween 1 percent and 75 percent of the R.sub.2 sites are --CH.sub.2 --O--R.sub.5wherein R.sub.5 is an alkyl unit containing 1 to 4 carbon atoms.The allyloxymethylatedpolyamide may be synthesized by reacting an alcohol soluble polyamide with formaldehyde and an allylalcohol.The allyloxymethylatedpolyamide may be cross linked by a process selected from the group consisting of(a) heating an allyloxymethylatedpolyamide in the presence of a free radical catalyst, and(b) hydrosilation of the double bond of the allyloxy group of the allyloxymethylatedpolyamide with a silicon hydride reactant having at least 2 reactive sites.A preferred article includesa substrate,at least one photoconductive layer, andan overcoat layer comprisinga hole transporting hydroxy arylamine compound having at least two hydroxy functional groups, anda cross linked allyloxymethylatedpolyamide film forming binder.A stabilizer may be added to the overcoat.