利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.015 秒)

    Preparation of thin tabular grain silver halide emulsions using synthetic polymeric peptizers
    1.
    发明授权
    Preparation of thin tabular grain silver halide emulsions using synthetic polymeric peptizers 失效
    使用合成聚合物胶溶剂制备薄的片状银卤化银乳剂

    公开(公告)号：US5385819A

    公开(公告)日：1995-01-31

    申请号：US171588

    申请日：1993-12-22

    申请人： Wayne A. Bowman ,  Roger A. Weiss ,  Gerald W. Klein ,  John E. Keevert, Jr. ,  Shane C. Weber

    发明人： Wayne A. Bowman ,  Roger A. Weiss ,  Gerald W. Klein ,  John E. Keevert, Jr. ,  Shane C. Weber

    IPC分类号： G03C1/015 ,  G03C1/005 ,  G03C1/035 ,  G03C1/047 ,  G03C1/053 ,  G03C1/07 ,  G03C1/04

    CPC分类号： G03C1/053 ,  G03C1/0051

    摘要： A process for preparing a thin tabular grain silver halide emulsion comprised of silver halide grains which have a halide content of at least 50 mole percent bromide, wherein tabular grains of less than 0.15 micrometers in thickness and having an aspect ratio of greater than 8 account for greater than 50 percent of the total grain projected area, comprises the steps of nucleating the silver halide grains with a gelatino-peptizer or with the use of certain synthetic polymers that serve as effective nucleation peptizers and then growing the silver halide grains with the use of either a gelatino-peptizer or certain synthetic polymers that serve as effective growth peptizers.

    摘要翻译： 一种制备由卤化银颗粒组成的薄片状颗粒卤化银乳剂的方法，该卤化银颗粒的卤化物含量至少为50％（摩尔）溴化物，其中厚度小于0.15微米，长宽比大于8的片状颗粒占据 占总颗粒投影面积的大于50％的步骤包括用明胶胶溶剂将卤化银颗粒成核的步骤或使用某些合成聚合物作为有效的成核胶溶剂，然后使用 用作有效成长胶溶剂的明胶胶溶剂或某些合成聚合物。

    Polymeric mordants
    4.
    发明授权
    Polymeric mordants 失效
    聚合媒染剂

    公开(公告)号：US4463080A

    公开(公告)日：1984-07-31

    申请号：US511425

    申请日：1983-07-06

    申请人： Robert A. Snow ,  Gerald W. Klein

    发明人： Robert A. Snow ,  Gerald W. Klein

    IPC分类号： C08F20/00 ,  C08F12/00 ,  C08F12/26 ,  C08F20/34 ,  C08F20/52 ,  C08F20/60 ,  C08F26/00 ,  C08F26/06 ,  G03C7/00 ,  G03C8/56 ,  G03C5/54 ,  G03C1/40

    CPC分类号： G03C8/56 ,  Y10S430/142 ,  Y10T428/31855 ,  Y10T428/31931

    摘要： Photographic elements and diffusion transfer assemblages are described which contain a novel polymeric mordant comprising recurring units having the formula ##STR1## wherein A represents recurring units derived from an .alpha.,.beta.-ethylenically unsaturated monomer;B represents recurring units derived from a monomer containing at least two ethylenically unsaturated groups;QN.sup..sym. represents a moiety containing a quaternized nitrogen group;R.sup.1 represents an alkoxy group having from 1 to about 8 carbon atoms or an alkylenedioxy group having from 1 to about 4 carbon atoms, the group being appended to an aromatic group of A;R.sup.2 represents an alkoxy group having from 1 to about 8 carbon atoms or an alkylenedioxy group having from 1 to about 4 carbon atoms, the group being appended to an aromatic group of QN.sup..sym. ;each n and m independently represents an integer from 0 to 5, with the proviso that the polymer contains recurring units having at least two alkoxy groups or one alkylenedioxy group;each R.sup.3 independently represents hydrogen or an alkyl group having from 1 to about 6 carbon atoms;X.sup..crclbar. represents an anion;x is from about 0 to about 80 mole percent;y is from about 20 to about 100 mole percent; andz is from about 0 to about 10 mole percent.

    摘要翻译： 描述了摄影元件和扩散转移组合物，其包含新型聚合物媒染剂，其包含具有下式的重复单元：其中A表示衍生自α，β-烯属不饱和单体的重复单元; B表示衍生自含有至少两个烯属不饱和基团的单体的重复单元; QN（+）表示含有季铵化氮基团的部分; R1表示具有1至约8个碳原子的烷氧基或具有1至约4个碳原子的亚烷基二氧基，该基团附加至A的芳族基团; R2表示具有1至约8个碳原子的烷氧基或具有1至约4个碳原子的亚烷基二氧基，该基团附加到QN（+）的芳族基团上; 每个n和m独立地表示0至5的整数，条件是聚合物含有具有至少两个烷氧基或一个亚烷基二氧基的重复单元; 每个R 3独立地表示氢或具有1至约6个碳原子的烷基; X（ - ）表示阴离子; x为约0至约80mol％; y为约20至约100摩尔％; 且z为约0至约10摩尔％。

    Polymeric vehicle for dye image-receiving layer containing a poly(vinylimidazole) mordant
    5.
    发明授权
    Polymeric vehicle for dye image-receiving layer containing a poly(vinylimidazole) mordant 失效
    用于含有聚（乙烯基咪唑）媒染剂的染料影像接受层的聚合物载体

    公开(公告)号：US4415647A

    公开(公告)日：1983-11-15

    申请号：US427067

    申请日：1982-09-29

    申请人： Gerald W. Klein ,  Wayne A. Bowman

    发明人： Gerald W. Klein ,  Wayne A. Bowman

    IPC分类号： G03C8/56 ,  G03C1/40 ,  G03C1/10 ,  G03C5/54

    CPC分类号： G03C8/56 ,  Y10S430/142 ,  Y10T428/31855 ,  Y10T428/31935

    摘要： Photographic elements, diffusion transfer assemblages and processes are described wherein a dye image-receiving layer comprising a poly(vinylimidazole) mordant is employed in a nonmordanting, water-permeable polymeric vehicle. The polymeric vehicle comprises recurring units derived from a hydroxyalkyl acrylate ester, and/or an N-hydroxyalkylacrylamide, and/or an N-alkylacrylamide. Image sharpness is thereby improved, especially under conditions of high temperature and humidity.

    摘要翻译： 描述了摄影元件，扩散转移组合和方法，其中包含聚（乙烯基咪唑）媒染剂的染料影像接受层被用于非引诱的，透水的聚合物载体中。 聚合物载体包含衍生自丙烯酸羟烷基酯和/或N-羟烷基丙烯酰胺和/或N-烷基丙烯酰胺的重复单元。 从而改善了图像清晰度，特别是在高温和高湿的条件下。

    Polymeric mordants
    6.
    发明授权
    Polymeric mordants 失效
    聚合媒染剂

    公开(公告)号：US4450224A

    公开(公告)日：1984-05-22

    申请号：US511129

    申请日：1983-07-06

    申请人： Gerald W. Klein ,  Robert A. Snow ,  Richard C. Sutton

    发明人： Gerald W. Klein ,  Robert A. Snow ,  Richard C. Sutton

    IPC分类号： C08F26/00 ,  C08F26/06 ,  G03C7/00 ,  G03C8/56 ,  G03C1/40 ,  C08F126/06 ,  G03C5/54

    CPC分类号： G03C8/56 ,  Y10S430/142 ,  Y10S525/916 ,  Y10T428/31935

    摘要： Photographic element and diffusion transfer assemblages are described which contain a novel mordant comprising recurring units having the formula ##STR1## wherein A represents recurring units derived from an .alpha.,.beta.-ethylenically unsaturated monomer;R represents hydrogen or methyl;each R.sup.1 independently represents hydrogen or an alkyl group of 1 to about 4 carbon atoms;Q represents an alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl group;X.sup..crclbar. represents an anion;w is from about 0 to about 25 mole percent;x is from about 30 to about 90 mole percent;y is from about 8 to about 65 mole percent;andz is from about 2 to about 9 mole percent.

    摘要翻译： 描述了包含新型媒染剂的照相元件和扩散转移组合物，其包含具有下式的重复单元：其中A表示衍生自α，β-烯属不饱和单体的重复单元; R代表氢或甲基; 每个R 1独立地表示氢或1至约4个碳原子的烷基; Q表示烷基，取代的烷基，环烷基，芳基或取代的芳基; X（ - ）表示阴离子; w为约0至约25摩尔％; x为约30至约90摩尔％; y为约8至约65摩尔％; 且z为约2至约9摩尔％。

    Emulsion and photographic element
    8.
    发明授权
    Emulsion and photographic element 失效
    乳液和摄影元素

    公开(公告)号：US5518872A

    公开(公告)日：1996-05-21

    申请号：US336817

    申请日：1994-11-09

    申请人： Roy King ,  Roger A. Weiss ,  Kenneth J. Reed ,  Gerald W. Klein

    发明人： Roy King ,  Roger A. Weiss ,  Kenneth J. Reed ,  Gerald W. Klein

    IPC分类号： G03C1/00 ,  G03C1/005 ,  G03C1/035 ,  G03C1/08 ,  G03C1/09 ,  G03C1/10 ,  G03C1/12

    CPC分类号： G03C1/0051 ,  G03C1/08 ,  G03C1/10 ,  G03C1/12

    摘要： Improved sensitivity and reduced minimum density are provided by an emulsion in which high bromide tabular grains exhibit an average thickness of less than 0.07 .mu.m and have latent image forming reduction chemical sensitization sites and adsorbed spectral sensitizing dye on their surfaces. The tabular grains contain a dopant capable of forming shallow electron trapping sites, and the spectral sensitizing dye exhibits an oxidation potential more positive than 1.2 volts. A photographic element is disclosed which locates the emulsion in a layer overlying a minus blue recording emulsion layer. Exceptionally sharp images are formed in the minus blue recording emulsion layer when in the overlying emulsion layer greater than 97 percent of the total projected area of the silver halide grains having an equivalent circular diameter of at least 0.2 .mu.m is accounted for by tabular grains having an average equivalent circular diameter of at least 0.7 .mu.m.

    摘要翻译： 提高灵敏度和降低最小密度由高溴化物片状颗粒表现出小于0.07μm的平均厚度并具有潜像形成还原化学增感位点和吸附的光谱增感染料在其表面上的乳液提供。 片状晶粒包含能够形成浅电子捕获位点的掺杂剂，并且光谱增感染料表现出比1.2伏更正的氧化电位。 公开了一种照相元件，其将乳剂定位在覆盖负蓝色记录乳剂层的层中。 当在上覆的乳剂层中，当具有至少0.2μm等效圆直径的卤化银颗粒的总投影面积的97％以上时，在负蓝色记录乳剂层中形成非常清晰的图像， 平均当量圆直径至少为0.7μm。