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    Small 3D emulsions with enhanced photographic response
    1.
    发明公开
    Small 3D emulsions with enhanced photographic response 审中-公开
    Kleine 3D-Emulsionen mit verbicultem photoischem Verhalten

    公开(公告)号：EP1136875A2

    公开(公告)日：2001-09-26

    申请号：EP01200935.3

    申请日：2001-03-12

    申请人： EASTMAN KODAK COMPANY

    发明人： Fenton, David E., c/o Eastman Kodak Company ,  Nelson, Roger W., c/o Eastman Kodak Company ,  Muenter, Annabel A., c/o Eastman Kodak Company

    IPC分类号： G03C1/035 ,  G03C1/10 ,  G03C1/12

    CPC分类号： G03C1/10 ,  G03C1/035 ,  G03C1/12 ,  G03C2001/03511 ,  G03C2001/03541

    摘要： A silver halide photographic element comprises at least one silver halide emulsion layer comprising 3D emulsion grains having an equivalent spherical diameter of less than or equal to 0.35 µm and said layer further comprises a fragmentable electron donor compound of the formula X-Y' or a compound which contains a moiety of the formula -X-Y'; wherein

    X is an electron donor moiety, Y' is a leaving proton H or a leaving group Y, with the proviso that if Y' is a proton, a base, β - , is covalently linked directly or indirectly to X, and wherein:

    1) X-Y' has an oxidation potential between 0 and about 1.4 V; and
    2) the oxidized form of X-Y' undergoes a bond cleavage reaction to give the radical X* and the leaving fragment Y'; and
    3) the radical X* has an oxidation potential ≤-0.7V (that is, equal to or more negative than about -0.7V).

    摘要翻译： 卤化银照相元件包括至少一种卤化银乳剂层，其包含具有小于或等于0.35μm的当量球形直径的3D乳剂颗粒，并且所述层还包含式XY'的可断裂电子给体化合物或其化合物， 含有式-X-Y'的部分; 其中X是电子给体部分，Y'是离开质子H或离去基团Y，条件是如果Y'是质子，则基团β - 直接或间接地共价连接到X和 其中：1）XY'具有介于0和约1.4V之间的氧化电位; 和2）X-Y'的氧化形式发生键断裂反应，得到基团X *和离去片段Y'; 和3）基团X *的氧化电位≤-0.7V（即等于或大于-0.7V的负值）。

    Fragmentable electron donor compounds in combination with high bromide tabular grain emulsions
    2.
    发明公开
    Fragmentable electron donor compounds in combination with high bromide tabular grain emulsions 审中-公开
    v ination v alt alt alt alt alt alt alt alt alt alt alt alt alt alt alt alt alt alt alt alt alt alt alt alt alt

    公开(公告)号：EP1022613A2

    公开(公告)日：2000-07-26

    申请号：EP00200120.4

    申请日：2000-01-13

    申请人： EASTMAN KODAK COMPANY

    发明人： Friday, James A., c/o Eastman Kodak Company ,  Bryant, Roger A., c/o Eastman Kodak Company ,  Muenter, Annabel A., c/o Eastman Kodak Company ,  Lenhard, Jerome R., c/o Eastman Kodak Company

    IPC分类号： G03C7/30 ,  G03C1/10 ,  G03C7/392

    CPC分类号： G03C1/10 ,  G03C1/0051 ,  G03C7/3022 ,  G03C7/392 ,  G03C2200/24

    摘要： A multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said silver halide emulsion layers contains a tabular grain silver halide emulsion having a halide content of at least 95% bromide and less than about 5% iodide, said iodide being substantially uniformly distributed in the silver halide grains of said emulsion, and said emulsion is sensitized with a fragmentable electron donor of the formula X-Y' or an electron donor which contains an -XY' moiety;
    wherein

    X is an electron donor moiety, Y' is a leaving proton H or a leaving group Y, with the proviso that if Y' is a proton, a base, β - , is covalently linked directly or indirectly to X, and wherein:

    1) X-Y' has an oxidation potential between 0 and about 1.4 V; and
    2) the oxidized form of X-Y' fragments to give the radical X • and the leaving fragment Y';
    and, optionally,
    3) the radical X • has an oxidation potential ≤-0.7V.

    摘要翻译： 一种多色照相元件，其特征在于，包含支持青色染料成像单元的载体，所述载体包括至少一种具有至少一种形成青色染料的成色剂的红色感光卤化银乳剂层，品红染料影像形成单元包括至少一种绿色 感光卤化银乳剂层，其具有与其相关的至少一种品红色染料形成成色剂，黄色染料影像形成单元，其包含至少一种蓝色感光卤化银乳剂层，其具有至少一种形成黄色染料的成色剂，其中在 所述卤化银乳剂层中的至少一种含有卤化物含量为至少95％溴化物和小于约5％碘化物的片状颗粒卤化银乳剂，所述碘化物基本均匀地分布在所述乳液的卤化银颗粒中，所述 用式XY'的可裂解电子给体或含有-XY'部分的电子给体使乳液敏化; 其中X是电子给体部分，Y'是离开质子H或离去基团Y，条件是如果Y'是质子，则基团β - 直接或间接地共价连接到X和 其中：1）XY'具有介于0和约1.4V之间的氧化电位; 和2）X-Y'片段的氧化形式，得到基团X 1和离去片段Y'; 和任选地，3）基团X 1具有≤-0.7V的氧化电位。