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115 条记录 (耗时 0.008 秒)

    66.
    发明授权
    失效

    公开(公告)号：UST917003I4

    公开(公告)日：1973-12-04

    申请号：US917003D

    申请日：1972-09-28

    IPC分类号： G03C1/49

    CPC分类号： G03C1/49

    Photohardenable element with light developable direct writing silver halide overcoating
    67.
    发明授权
    Photohardenable element with light developable direct writing silver halide overcoating 失效
    具有可开发直接写入银色阴极氧化物的光电元件

    公开(公告)号：US3730717A

    公开(公告)日：1973-05-01

    申请号：US3730717D

    申请日：1969-03-28

    申请人： DU PONT

    发明人： FU HUA CHU V ,  COHEN A

    IPC分类号： G03C1/49 ,  G03F7/095 ,  G03C5/04 ,  G03C1/68 ,  G03C11/12

    CPC分类号： G03F7/0952 ,  G03C1/49

    摘要： AN ELEMENT COMPRISING A LIGHT-HARDENABLE LAYER UPON WHICH IS COATED A PHOTODEVELOPABLE COLLOID SILVER HALIDE EMULSION. THE PHOTODEVELOPABLE SILVER HALIDE EMULSION IS EXPOSED, PHOTODEVELOPED, AND THE IMAGE USED AS A NEGATIVE TO EXPOSE THE UNDERLYING COMPOSITION WHICH IS TREATED TO REMOVE THE COMPOSITION IS UNEXPOSED, BUT NOT IN EXPOSED AREA. PRINTING RELIEFS SUITABLE FOR LETTERPRESS AND OFFSET PRINTING AND PRINTED CIRCUITS CAN BE MADE FROM THE ELEMENTS OF THE INVENTION, USING WASH-OFF PROCEDURES OR THERMAL TRANSFER MEANS WHEREBY UNHARDENED IMAGE AREAS ADHERE TO A PREVIOUSLY OR SUBSEQUENTLY APPLIED RECEPTOR SHEET OR PLATE.

    Silver halide emulsions sensitized with merocyanine dyes containing a thioureido group
    69.
    发明授权
    Silver halide emulsions sensitized with merocyanine dyes containing a thioureido group 失效
    与含有三叶草组的梅毒染色体敏感的银盐乳液

    公开(公告)号：US3630749A

    公开(公告)日：1971-12-28

    申请号：US3630749D

    申请日：1970-03-19

    申请人： EASTMAN KODAK CO

    发明人： WEBSTER FRANK G ,  BROOKER LESLIE G S

    IPC分类号： C09B23/10 ,  G03C1/22 ,  G03C1/49 ,  G03G5/06 ,  G03C1/08

    CPC分类号： G03G5/067 ,  C09B23/105 ,  G03C1/22 ,  G03C1/49 ,  G03G5/062

    摘要： 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

    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:

    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.

    D R A W I N G

    Photographic compositions and processes for making same
    70.
    发明授权
    Photographic compositions and processes for making same 失效
    摄影组合物及制作方法

    公开(公告)号：US3615580A

    公开(公告)日：1971-10-26

    申请号：US3615580D

    申请日：1968-10-09

    申请人： EASTMAN KODAK CO

    发明人： KARLSON RICHARD W

    IPC分类号： G03C1/49 ,  G03C1/06

    CPC分类号： G03C1/49

    摘要： Photographic silver-halide emulsions comprising silver-halide grains which have been formed in the presence of a water-soluble nitrite. In one aspect, photographic silver-halide emulsions comprising said grains provide improved direct-print emulsions. In another aspect, this invention relates to a process for improving the photographic properties of a direct-print composition by adding water-soluble nitrites to the precipitation medium wherein the silver-halide grains are formed.