Electroluminescent devices
    31.
    发明公开
    Electroluminescent devices 失效
    电致发光器件

    公开(公告)号:EP0869700A3

    公开(公告)日:1999-01-07

    申请号:EP98105791.2

    申请日:1998-03-30

    申请人: Xerox Corporation

    IPC分类号: H05B33/14 C09K11/06

    摘要: A metal chelate compound of the formula
            L n -M +n      (I)
    wherein M represents a metal; n is an integer, or number of from 1 to 3; and L is a ligand of
    wherein Ar is aryl; X is selected from the group consisting of oxygen, sulfur, and selenium; N is nitrogen; O is oxygen; and Z is a suitable aromatic component.

    摘要翻译: 式Ln-M + n(I)的金属螯合化合物,其中M代表金属; n是1至3的整数或数目; 并且L是其中Ar是芳基的配体; X选自氧,硫和硒; N是氮; O是氧气; Z是合适的芳族组分。

    Processes for the preparation of arylamines
    33.
    发明公开
    Processes for the preparation of arylamines 失效
    一种芳基胺的制备方法

    公开(公告)号:EP0856508A1

    公开(公告)日:1998-08-05

    申请号:EP98300469.8

    申请日:1998-01-23

    申请人: XEROX CORPORATION

    IPC分类号: C07C209/10 C07C211/54

    CPC分类号: C07C209/10 C07C211/54

    摘要: A process for the preparation of N,N-bis(3,4-dimethylphenyl)4-biphenylamine which comprises the reaction of N,N-bis(3,4-dimethylphenyl)amine and an iodobiphenyl in the presence of a ligand copper catalyst, and wherein the ligand is selected from the group consisting of monodentate tertiary amines and bidentate tertiary amines, and which reaction is preferably accomplished at a temperature of from about 120°C to about 150°C.

    Acrylonitrile-modified toner compositions and processes
    34.
    发明公开
    Acrylonitrile-modified toner compositions and processes 失效
    丙烯腈改性剂

    公开(公告)号:EP0834776A1

    公开(公告)日:1998-04-08

    申请号:EP97307655.7

    申请日:1997-09-29

    申请人: XEROX CORPORATION

    IPC分类号: G03G9/08 G03G9/087

    摘要: There is provided a toner comprised of colorant, and an addition polymer resin generated from about 55 to about 80 weight percent of styrene, from about 1 to about 25 weight percent of acrylate, from about 1 to about 20 weight percent of acrylonitrile, and from about 0.5 to about 5 weight percent of acrylic acid. There is also provided a process for the preparation of said toner.

    摘要翻译: 调色剂颗粒及其制备方法包括:(1)55-80份苯乙烯,1-25份丙烯酸酯,1-20份丙烯腈和0.5-5份丙烯酸的混合物的乳液聚合,以制备用 离子表面活性剂(和任选的非离子表面活性剂); (2)在高剪切条件下将胶乳与水性颜料或着色剂分散体混合,用与稳定胶乳相同的离子表面活性剂稳定; (3)通过将该混合物絮凝,通过热处理至30℃Tg> 10℃的温度来生产静电结合的调色剂尺寸的聚集体; (4)将聚集悬浮液加热至Tg + 10-50℃的温度; 和任选地(5)洗涤,干燥和干燥调色剂颗粒与其它添加剂。 优选地,乳液聚合阶段(1)具有5-10份丙烯腈。 离子表面活性剂是十二烷基,十二烷基苯或十二烷基萘磺酸钠,占阶段(1)和(2)中反应混合物的重量的0.01〜10%。 如果使用非离子表面活性剂,则其在阶段(1)中占反应混合物的至多5重量%,并且选自聚乙烯醇,甲醛糖; 甲基,乙基,丙基,羟基乙基或羧甲基纤维素; 或聚氧乙烯鲸蜡基,月桂基,辛基,辛基苯基,油基,壬基苯基或硬脂基醚; 或聚氧乙烯山梨糖醇酐单月桂酸酯或二烷基苯氧基聚(乙烯氧基)乙醇。 颜料或着色剂是炭黑,磁铁矿,青色,黄色,品红色或它们的混合物。 体积平均粒径,从而最终的调色剂粒径为1-2μm,直径大小分布(GSD)为1.35。

    Photoconductive imaging members with ladder polymers
    37.
    发明公开
    Photoconductive imaging members with ladder polymers 失效
    PhotoleitfähigeBildherstellungselemente enthaltend“Leiter”-Polymere。

    公开(公告)号:EP0559392A1

    公开(公告)日:1993-09-08

    申请号:EP93301473.0

    申请日:1993-02-26

    申请人: XEROX CORPORATION

    IPC分类号: G03G5/07

    摘要: A photoconductive imaging member comprised of a supporting substrate, a photogenerating layer comprised of a ladder polymer selected from the group consisting of those represented by the following formulas:


    and mixtures thereof, wherein n represents the number of segments, and a charge transport layer.

    摘要翻译: 一种感光成像构件,包括支撑衬底,由选自由下式表示的梯形聚合物组成的组的光生成层: CHEM>及其混合物,其中n表示段的数目,以及 电荷传输层。