Tabular grain emulsions containing laminar halide strata
    1.
    发明授权
    Tabular grain emulsions containing laminar halide strata 失效
    包含层状半金属片的片状颗粒乳液

    公开(公告)号:US5132203A

    公开(公告)日:1992-07-21

    申请号:US667144

    申请日:1991-03-11

    摘要: Photographic emulsions are disclosed comprised of radiation sensitive silver iodobromide grains, at least 50 percent of the total projected area of said silver iodobromide grains being accounted for by tabular grains exhibiting a mean tabularity of greater than 5, at least 10 percent of which are comprised of two opposed parallel major crystal faces, a host stratum having an iodide content of at least 4 mole percent, and laminar strata containing less than 2 mole percent iodide interposed between said host stratum and said opposed major crystal faces.The emulsions are characterized in that each of the laminar strata is comprised of a surface layer forming one of the major surfaces and having a thickness in the range of from 20 to 350 .ANG. and a subsurface layer located immediately beneath and in contact with the surface layer containing a hexacoordination complex of a Group VIII period 4 or 5 metal and at least three cyanide ligands.

    Silver halide emulsions with doped epitaxy
    2.
    发明授权
    Silver halide emulsions with doped epitaxy 失效
    具有掺杂外延的卤化银乳剂

    公开(公告)号:US5462849A

    公开(公告)日:1995-10-31

    申请号:US330280

    申请日:1994-10-27

    IPC分类号: G03C1/035 G03C1/08 G03C1/09

    CPC分类号: G03C1/09 G03C1/08 G03C1/035

    摘要: A photographic silver halide emulsion is disclosed comprised of radiation sensitive composite silver halide grains including host grain portions accounting for at least 50 percent of total silver and surface portions epitaxially deposited on the host grain portions. The epitaxially deposited surface portions on the host grain portions exhibit a face centered cubic crystal lattice structure containing a hexacoordination complex of a metal from periods 4, 5 and 6 of groups 3 to 14 inclusive of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands.

    摘要翻译: 公开了一种照相卤化银乳剂,其包含辐射敏感复合卤化银颗粒,其包括占整个银的至少50%的主体颗粒部分和外延沉积在主体颗粒部分上的表面部分。 在主体颗粒部分上的外延沉积的表面部分表现出一种面心立方晶格结构,其含有第3至14族的第4,5和6周期的金属的六配位络合物,包括元素周期表,其中一个或多个有机 每个含有至少一个碳 - 碳键,至少一个碳 - 氢键或至少一个碳 - 氮 - 氢键序列的配体占配位络合物中金属配位点的一半, 配位络合物中至少一半的金属配位点由卤素或假卤素配体提供。

    Internally doped silver halide emulsions and processes for their
preparation
    4.
    发明授权
    Internally doped silver halide emulsions and processes for their preparation 失效
    内掺卤化银乳剂及其制备方法

    公开(公告)号:US5360712A

    公开(公告)日:1994-11-01

    申请号:US91148

    申请日:1993-07-13

    CPC分类号: G03C1/08

    摘要: A process is disclosed of preparing a radiation sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a metal hexacoordination or tetracoordination complex having at least one organic ligand containing a least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond, or at least one carbon-to-nitrogen-to-hydrogen bond sequence and at least half of the metal coordination sites occupied by halide or pseudohalide ligands. The metal forming the complex is chosen from periods 4, 5 and 6 and groups 3 to 13 inclusive of the periodic table of elements. The incorporation of the transition metal ion dopant and at least one organic ligand into the cubic crystal lattice of the silver halide grains can be used to improve photographic performance.

    摘要翻译: 公开了制备辐射敏感卤化银乳剂的方法,其包括在存在金属六配位体或具有至少一个含有至少一个碳 - 碳键的有机配体的四配位络合物的存在下,使分散介质中的银和卤离子反应, 至少一个碳 - 氢键,或至少一个碳 - 氮 - 氢键序列和由卤化物或拟卤化物配体占据的至少一半的金属配位点。 形成络合物的金属选自周期表4,5和6,第3至13族,包括元素周期表。 将过渡金属离子掺杂剂和至少一种有机配体掺入卤化银颗粒的立方晶格可以用于改善照相性能。

    Photographic emulsions containing internally and externally modified
silver halide grains
    6.
    发明授权
    Photographic emulsions containing internally and externally modified silver halide grains 失效
    含有内部和外部改性的卤化银颗粒的照相乳剂

    公开(公告)号:US5385817A

    公开(公告)日:1995-01-31

    申请号:US3183

    申请日:1993-01-12

    申请人: Eric L. Bell

    发明人: Eric L. Bell

    摘要: The present invention provides a photographic emulsion comprising silver halide grains, a dopant, and a grain surface modifier. The dopant is a transition metal complex comprising a nitrosyl or thionitrosyl ligand with a transition metal selected from the group consisting of ruthenium and osmium. The grain surface modifier is a transition metal selected from Group VIII of the periodic table.

    摘要翻译: 本发明提供了包含卤化银颗粒,掺杂剂和颗粒表面改性剂的照相乳剂。 掺杂剂是包含亚硝酰基或亚硫酰基基配体与过渡金属的过渡金属络合物,其选自钌和锇。 晶粒表面改性剂是选自元素周期表第Ⅷ族的过渡金属。

    Photographic emulsion containing transition metal complexes
    7.
    发明授权
    Photographic emulsion containing transition metal complexes 失效
    含有过渡金属络合物的摄影乳液

    公开(公告)号:US5500335A

    公开(公告)日:1996-03-19

    申请号:US331832

    申请日:1994-10-31

    申请人: Eric L. Bell

    发明人: Eric L. Bell

    IPC分类号: G03C1/09

    CPC分类号: G03C1/09

    摘要: The present invention provides a photographic emulsion comprising comprising silver halide grains, an iridium containing hexacoordination complex, and at least two grain surface modifiers, wherein the first of the grain surface modifiers is a transition metal complex comprising a nitrosyl or thionitrosyl ligand with a transition metal selected from the Groups 5 to 10, inclusive, of the periodic table, and the second of the grain surface modifiers is a transition metal complex comprising a transition metal, other than iridium, which is selected from Groups 7 to 10, inclusive, of the periodic table.

    摘要翻译: 本发明提供一种包含卤化银颗粒,含铱六配位络合物和至少两种晶粒表面改性剂的照相乳剂,其中第一种晶粒表面改性剂是包含亚硝酰基或亚硫酰基配体与过渡金属的过渡金属配合物 选自元素周期表的第5至10族,第二种晶粒表面改性剂是包含除了铱的过渡金属以外的过渡金属络合物,其选自第7至10族,其中 周期表。

    High chloride emulsions with optimized digital reciprocity characteristics
    8.
    发明授权
    High chloride emulsions with optimized digital reciprocity characteristics 失效
    具有优化数字互惠特性的高氯化物乳液

    公开(公告)号:US06733961B1

    公开(公告)日:2004-05-11

    申请号:US10328493

    申请日:2002-12-23

    IPC分类号: G03C109

    摘要: A method for forming a radiation-sensitive high chloride silver halide emulsion is described comprising growing cubical silver halide grains having a central portion accounting for up to 98 percent of total silver of the grains which central portion contains an iridium coordination complex dopant, and chemically sensitizing the surface of the emulsion grains at a pH of at least 5.75. Localized addition of the known in the art reciprocity-controlling iridium dopants to an internal portion of the emulsion grains and chemical finishing of such an emulsion at elevated pH conditions improves reciprocity and latent image stability of the formed high chloride emulsions.

    摘要翻译: 描述了形成辐射敏感性高氯化卤化银乳剂的方法,其包括生长立方卤化银颗粒,其中心部分占中心部分含有铱配位络合物掺杂剂的颗粒的总银的98%,并且化学增感 乳液颗粒的表面在至少5.75的pH下。 将本领域已知的互易控制铱掺杂剂局部添加到乳液颗粒的内部,并且在升高的pH条件下对这种乳液进行化学处理改善了形成的高氯化物乳液的互易性和潜像稳定性。