Polymethine dyes
    62.
    发明授权
    Polymethine dyes 失效
    聚氨酯染​​料

    公开(公告)号:US3743638A

    公开(公告)日:1973-07-03

    申请号:US3743638D

    申请日:1971-04-19

    申请人: EASTMAN KODAK CO

    发明人: WEBSTER F BROOKER L

    摘要: Y
    WHEREIN R4 IS SELECTED FROM THE GROUP CONSISTING OF A HYDROGEN ATOM, AN ALKYL RADICAL OR AN ARYL RADICAL AND Y IS SELECTED FROM THE GROUP CONSISTING OF AN OXYGEN ATOM, A SULFUR ATOM OR A SELENIUM ATOM AND R5 IS SELECTED FROM THE GROUP CONSISTING OF A HYDROGEN ATOM, AN ALKYL ATOM OR AN ARYL ATOM; OR

    A NOVEL CLASS OF DYES ESPECIALLY USEFUL AS SENSITIZERS FOR PHOTOGRAPHIC SILVER HALIDE EMULSIONS AND ELECTROGRAPHIC COATINGS OF ZINC OXIDE HAVING THE FOLLOWING STRUCTURE:
    WHEREIN R6 HAS THE SAME DESIGNATED VALUE AS R5.

    R6-NH-C(=S)-NH-N WHEREIN Z REPRESENTS THE ATOMS REQUIRED TO FORM A BASIC HETEROCYCLIC NUCLEUS; R1 IS AN ALKYL OR ARYL RADICAL; R2 AND R3 ARE SELECTED FROM THE GROUP CONSISTING OF A HYDROGEN ATOM, LOWER ALKYL RADICAL OR ARYL RADICAL AND Q IS A RADICAL SELECTED FROM:

    (-Z-N(-R1)-)>C=C(-R2)-C(-R3)=Q

    Means and methods for exposing photoelectrostatic materials
    63.
    发明授权
    Means and methods for exposing photoelectrostatic materials 失效
    曝光光电材料的手段和方法

    公开(公告)号:US3729257A

    公开(公告)日:1973-04-24

    申请号:US3729257D

    申请日:1970-02-16

    发明人: GUNTO R STALEY M

    摘要: Exposure of the conventional dye sensitized zinc oxide resin binder copy material is accomplished with a radiation source that emits a high level of energy at 535 nanometers. The photoelectrostatic copying method involves illuminating the original to be reproduced with a mercury-vapor type lamp which has been modified to include thallium vapors through the introduction of thallium halide into the lamp envelope. A high intensity green light is emitted which performs as a monochromatic energy source and finds particular application when reproducing originals having more than one color indicia thereon so that all colors are reproduced in accordance with their relative brightness on the original.

    摘要翻译: 常规染料敏化氧化锌树脂粘合剂复制材料的曝光是用在535纳米处发射高能量的辐射源实现的。 光电复制方法包括用通过将卤化铊引入灯壳中而被修饰为包括铊蒸汽的汞蒸汽型灯来照亮要再现的原稿。 发出高强度的绿光,其作为单色能源进行发光,并且在再现其上具有多于一个颜色标记的原稿时发现具体应用,使得根据原件的相对亮度再现所有颜色。

    Photoconductive elements containing alkali-release materials
    67.
    发明授权
    Photoconductive elements containing alkali-release materials 失效
    含碱性材料的光电元件

    公开(公告)号:US3671233A

    公开(公告)日:1972-06-20

    申请号:US3671233D

    申请日:1969-09-02

    申请人: EASTMAN KODAK CO

    摘要: ELECTROPHOTOGRAPHIC ELEMENTS CONTAINING ALKALI-RELEASE MATERIALS ADMIXED WITH PHOTOCONDUCTIVE COMPOSITIONS ARE DESCRIBED. WHEN THESE ELEMENTS ARE DEVELOPED AND HEATED, THE ALKALI-RELEASE MATERIALS GENERATE ALKALINE PRODUCTS WHICH CAUSE A SHIFT IN THE ABSORPTION OF THE SENSITIZERS CONTAINED IN THE PHOTOCONDUCTIVE COMPOSITIONS. SUCH A SHIFT GENERALLY REDUCES THE OPTICAL OPACITY OF THE ELEMENTS, THUS PERMITTING THE ELEMENTS O BE USED AS MASTERS FROM WHICH FURTHER REPRINTS CAN BE MADE.

    Electrophotographic copying material containing assistant sensitizers and its manufacturing method
    70.
    发明授权
    Electrophotographic copying material containing assistant sensitizers and its manufacturing method 失效
    包含助剂敏化剂的电子复印材料及其制造方法

    公开(公告)号:US3620723A

    公开(公告)日:1971-11-16

    申请号:US3620723D

    申请日:1968-05-15

    申请人: RICOH KK

    摘要: An electrophotographic copying material, comprising a support sheet having a front and a reverse side, said reverse side having been given an electroconducting treatment and said front side being impregnated with or directly coated with as assistant sensitizer, said front side further having, on the face of the assistant sensitizer applied on said side, a light-sensitive layer (photoconductive layer) containing an organic photoconductive substance. A method for manufacturing the aforesaid copying material, comprising first applying a solution of an assistant sensitizer onto the front side of a support sheet with its reverse side already having been given an electroconducting treatment, drying the applied assistant sensitizer at a temperature ranging from 60* C. to 100* C, and then forming a light-sensitive layer on the face of the applied assistant sensitizer.