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31 条记录 (耗时 0.036 秒)

    Photoconductive devices containing perylene dye compositions
    11.
    发明授权
    Photoconductive devices containing perylene dye compositions 失效
    含有苝染料组合物的光导体

    公开(公告)号：US4514482A

    公开(公告)日：1985-04-30

    申请号：US587483

    申请日：1984-03-08

    申请人： Rafik O. Loutfy ,  Cheng-Kuo Hsiao

    发明人： Rafik O. Loutfy ,  Cheng-Kuo Hsiao

    IPC分类号： C09B5/62 ,  G03G5/04 ,  G03G5/06 ,  H01L31/08 ,  G03G5/07

    CPC分类号： C09B5/62 ,  G03G5/0657

    摘要： This invention relates to improved photoresponsive devices including, for example, those comprised of (1) a supporting substrate, and (2) a photoconductive layer comprised of perylene dye compositions of the following formula: ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are independently selected from the group consisting of alkyl groups and aryl groups.

    摘要翻译： 本发明涉及改进的光响应器件，其包括例如包括（1）支撑衬底的光响应器件，和（2）由下式的苝染料组合物组成的光电导层：其中R1，R2和R3是 独立地选自烷基和芳基。

    Processes for preparing copolymers
    14.
    发明授权
    Processes for preparing copolymers 失效
    制备共聚物的方法

    公开(公告)号：US6124409A

    公开(公告)日：2000-09-26

    申请号：US929457

    申请日：1992-08-12

    申请人： T. Hwee Ng ,  Hadi K. Mahabadi ,  Man C. Tam ,  Gregory J. Kovacs ,  Eric M. Peters ,  Rafik O. Loutfy

    发明人： T. Hwee Ng ,  Hadi K. Mahabadi ,  Man C. Tam ,  Gregory J. Kovacs ,  Eric M. Peters ,  Rafik O. Loutfy

    IPC分类号： C08F2/00 ,  C08F2/06 ,  C08F2/18 ,  C08F4/38

    CPC分类号： C08F2/001 ,  C08F2/06 ,  Y10S526/921

    摘要： Disclosed is a process for preparing copolymers which comprises, in the order stated: (1) adding monomers containing unsaturated carbon-to-carbon bonds, a first polymerization initiator, a second polymerization initiator, and a solvent to a reaction vessel; (2) purging the resulting solution with an inert gas; (3) sealing the reaction vessel and pressurizing it by addition of an inert gas to a pressure of from about 20 to about 600 kilopascals over ambient atmospheric pressure; (4) maintaining the temperature within the pressurized reaction vessel at a temperature of from about 50 to about 100.degree. C. for a period of from about 60 to about 300 minutes; (5) thereafter maintaining the temperature within the pressurized reaction vessel at a temperature of from about 80 to about 115.degree. C. for a period of from about 30 to about 300 minutes, wherein the temperature in step (5) is higher than the temperature in step (4); and (6) subsequently maintaining the temperature within the pressurized reaction vessel at a temperature of from about 115 to about 160.degree. C. for a period of from about 30 to about 180 minutes, wherein the temperature in step (6) is higher than the temperature in step (5). Polymers prepared according to the process of the present invention can be particularly useful in migration imaging members.

    摘要翻译： 公开了一种制备共聚物的方法，其顺序包括：（1）向反应容器中加入含有不饱和碳 - 碳键的单体，第一聚合引发剂，第二聚合引发剂和溶剂; （2）用惰性气体吹扫所得溶液; （3）密封反应容器并通过在环境大气压下加入约20至约600千帕斯卡的惰性气体对其加压; （4）将加压反应容器内的温度维持在约50至约100℃的温度下约60至约300分钟; （5）之后将加压反应容器内的温度保持在约80至约115℃的温度下约30至约300分钟的时间，其中步骤（5）中的温度高于温度 在步骤（4）中; 和（6）随后将加压反应容器内的温度保持在约115至约160℃的温度下约30至约180分钟的时间，其中步骤（6）中的温度高于 步骤（5）中的温度。 根据本发明的方法制备的聚合物可以在迁移成像构件中特别有用。

    Image bar with electrochromic switching system
    15.
    发明授权
    Image bar with electrochromic switching system 失效
    具有电致变色开关系统的图像条

    公开(公告)号：US4916470A

    公开(公告)日：1990-04-10

    申请号：US272040

    申请日：1988-11-16

    申请人： Gregory J. Kovacs ,  Rafik O. Loutfy

    发明人： Gregory J. Kovacs ,  Rafik O. Loutfy

    IPC分类号： B41J2/445 ,  B41J2/465 ,  G01D15/14 ,  G02F1/15 ,  G02F1/153 ,  G03B15/04 ,  G03B27/32 ,  G03B27/50 ,  G03G15/04 ,  H04N1/23 ,  H04N1/40

    CPC分类号： B41J2/465 ,  G01D15/14 ,  G02F1/153 ,  H04N1/40031

    摘要： Disclosed is an image bar for use in an imaging apparatus, comprising a linear light valve array with a plurality of discrete, independently addressable pixel portions activatable between light transmitting, partially transmitting, and non-transmitting wavelengths by selective application of an electrical field. The pixel portions comprise, in the order stated, a first transparent substrate; a transparent electrode in contact with the first transparent substrate; a thin film comprising an electrochromic material in contact with the transparent electrode; a transparent electrolytic material in contact with the thin film; a counterelectrode in contact with the transparent electrolytic material; and a second substrate.

    摘要翻译： 公开了一种用于成像装置的图像条，包括具有多个独立可寻址的像素部分的线性光阀阵列，其可通过选择性施加电场在光透射，部分透射和非透射波长之间激活。 像素部分按照所述顺序包括第一透明衬底; 与第一透明基板接触的透明电极; 包括与所述透明电极接触的电致变色材料的薄膜; 与薄膜接触的透明电解质材料; 与透明电解质材料接触的反电极; 和第二基板。

    Xeroprinting process with improved contrast potential
    20.
    发明授权
    Xeroprinting process with improved contrast potential 失效
    Xeroprinting过程具有改善的对比度潜力

    公开(公告)号：US4970130A

    公开(公告)日：1990-11-13

    申请号：US444343

    申请日：1989-12-01

    申请人： Man C. Tam ,  Rafik O. Loutfy ,  Gregory J. Kovacs

    发明人： Man C. Tam ,  Rafik O. Loutfy ,  Gregory J. Kovacs

    IPC分类号： G03G13/26 ,  G03G5/026 ,  G03G13/22 ,  G03G17/04 ,  G03G17/10

    CPC分类号： G03G17/10 ,  G03G5/026

    摘要： Disclosed is a xeroprinting process which comprises(1) providing a xeroprinting master comprising(a) a substrate; and(b) a softenable layer comprising a softenable material, a charge transport material capable of transporting charges of one polarity, and migration marking material situated contiguous to the surface of the softenable layer spaced from the substrate, wherein a portion of the migration marking material has migrated through the softenable layer toward the substrate in imagewise fashion;(2) uniformly charging the xeroprinting master to a polarity opposite to the polarity of the charges that the charge transport material in the softenable layer is capable of transporting;(3) uniformly exposing the charged master to activating radiation, thereby discharging those areas of the master wherein the migration marking material has migrated toward the substrate and forming an electrostatic latent image;(4) developing the electrostatic latent image; and(5) transferring the developed image to a receiver sheet.The process results in greatly enhanced contrast potentials or contrast voltages between the charged and uncharged areas of the master subsequent to exposure to activating radiation, and the charged master can be developed with either liquid developers or dry developers.