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    Photothermographic materials containing high iodide core-shell emulsions
    2.
    发明授权
    Photothermographic materials containing high iodide core-shell emulsions 失效
    含有高碘化物核 - 壳乳剂的光热成像材料

    公开(公告)号：US06770428B2

    公开(公告)日：2004-08-03

    申请号：US10295069

    申请日：2002-11-15

    申请人： Joe E. Maskasky ,  Victor P. Scaccia ,  David A. Dickinson

    发明人： Joe E. Maskasky ,  Victor P. Scaccia ,  David A. Dickinson

    IPC分类号： G03C1498

    CPC分类号： G03C1/49818 ,  G03C1/04 ,  G03C1/49845 ,  G03C1/49863 ,  G03C1/49881 ,  G03C2001/03535 ,  G03C2001/03558 ,  G03C2007/3025 ,  Y10S430/145 ,  Y10S430/156

    摘要： Aqueous-based thermally developable emulsions and photothermographic imaging materials include photosensitive silver halide core-shell grains that comprise at least 20 mol % iodide based on total silver, an amount of iodide in the core of the grains that can be up to the iodide saturation limit in silver iodobromide, and an amount of iodide in the shell of the grains that is at least 2 mol % less than the amount of iodide present in the core, and further provided that the total amount of silver in the shell is from about 10 to about 80 mol % of total silver in the grains. These materials provide desired Dmax and reduced image “print out”.

    摘要翻译： 基于水的热显影乳液和光热成像材料包括光敏卤化银核 - 壳晶粒，其包含基于总银的至少20mol％的碘化物，可以达到碘化物饱和极限的晶粒核中的碘化物量 在碘化银中，并且所述晶粒壳中的碘化物的量相对于存在于芯中的碘化物的量少至少2摩尔％，并且进一步规定，壳中的银的总量为约10至 约80mol％的银中总银。 这些材料提供所需的Dmax和缩小的图像“打印输出”。

    Preparation of high bromide photographic emulsions with starch peptizer
    6.
    发明授权
    Preparation of high bromide photographic emulsions with starch peptizer 失效
    用淀粉胶溶剂制备高溴酸根照相乳剂

    公开(公告)号：US06395465B1

    公开(公告)日：2002-05-28

    申请号：US09731446

    申请日：2000-12-07

    申请人： Joe E. Maskasky ,  Victor P. Scaccia

    发明人： Joe E. Maskasky ,  Victor P. Scaccia

    IPC分类号： G03C1005

    CPC分类号： G03C1/0051 ,  G03C1/04

    摘要： A process for precipitating a high bromide silver halide emulsion in an aqueous medium is disclosed comprising growing nucleated silver halide grains in a reaction vessel in the presence of a peptizer comprising a water dispersable starch to form high bromide radiation-sensitive silver halide grains, wherein the majority of grain growth in the reaction vessel is performed at a pH of less than 3.5. Growth of high bromide silver halide emulsion grains in the presence of a starch peptizer at low pH in accordance with the invention results in emulsion grains with lower fog, even in the absence of the use of strong oxidizing agents during grain precipitation.

    摘要翻译： 公开了一种在水性介质中沉淀高溴化卤化银乳剂的方法，其包括在包含水分散性淀粉的胶溶剂存在下在反应容器中生长有核卤化银颗粒以形成高溴化物辐射敏感卤化银颗粒，其中 反应容器中的大部分晶粒生长在小于3.5的pH下进行。 在根据本发明的低pH下淀粉胶溶剂存在下，高溴化卤化银乳剂颗粒的生长导致即使在晶粒沉淀期间不使用强氧化剂的情况下，雾也较低的乳液颗粒。

    Preparation of high bromide photographic emulsions with starch peptizer and oxidizing agent
    7.
    发明授权
    Preparation of high bromide photographic emulsions with starch peptizer and oxidizing agent 失效
    用淀粉胶溶剂和氧化剂制备高溴酸盐照相乳剂

    公开(公告)号：US06391534B1

    公开(公告)日：2002-05-21

    申请号：US09731445

    申请日：2000-12-07

    申请人： Joe E. Maskasky ,  Victor P. Scaccia

    发明人： Joe E. Maskasky ,  Victor P. Scaccia

    IPC分类号： G03C1085

    CPC分类号： G03C1/04 ,  G03C1/005 ,  G03C1/0051 ,  G03C1/08 ,  G03C2001/03511 ,  G03C2001/0478 ,  G03C2200/03 ,  G03C2200/44

    摘要： A process for precipitating a high bromide silver halide emulsion in an aqueous medium is described comprising precipitating high bromide radiation-sensitive silver halide grains in a reaction vessel in the presence of a peptizer comprising a water dispersable starch, wherein a strong oxidizing agent is added to the reaction vessel during or after the precipitation at a pH of less than 4.0 such that an oxidation potential of at least 650 mV (Ag/AgCl ref.) is achieved. A reduction in the rate of reaction between strong oxidants such as bromine and starch at such low pH has been found to enable an advantageous decrease in the amount of oxidant required to achieve and maintain a high oxidation potential during emulsion grain precipitation. Starch, unlike gelatin, also advantageously has adequate stability at the combination of high acidity and high emulsion precipitation temperatures.

    摘要翻译： 描述了一种在水性介质中沉淀高溴化物卤化银乳剂的方法，其包括在包含水分散性淀粉的胶溶剂存在下，在反应容器中沉淀高溴化物辐射敏感卤化银颗粒，其中将强氧化剂加入 在小于4.0的pH下沉淀期间或之后的反应容器，使得达到至少650mV（Ag / AgCl参考）的氧化电位。 已经发现，在如此低的pH下，强氧化剂如溴和淀粉之间的反应速率的降低使得在乳液颗粒沉淀期间实现和保持高氧化电势所需的氧化剂的量的有利的减少。 与明胶不同，淀粉也在高酸度和高乳化沉淀温度的组合下有利地具有足够的稳定性。

    Preparation of high chloride photographic emulsions with starch peptizer
    8.
    发明授权
    Preparation of high chloride photographic emulsions with starch peptizer 失效
    用淀粉胶溶剂制备高氯化物照相乳剂

    公开(公告)号：US06383730B1

    公开(公告)日：2002-05-07

    申请号：US09731454

    申请日：2000-12-07

    申请人： Joe E. Maskasky ,  Victor P. Scaccia

    发明人： Joe E. Maskasky ,  Victor P. Scaccia

    IPC分类号： G03C1035

    CPC分类号： G03C1/04 ,  G03C1/0053 ,  G03C1/015 ,  G03C1/035 ,  G03C1/07 ,  G03C2001/03517 ,  G03C2001/03535 ,  G03C2200/01 ,  G03C2200/43 ,  G03C2200/44

    摘要： A process for precipitating a high chloride silver halide emulsion in an aqueous medium is disclosed comprising growing nucleated silver halide grains in a reaction vessel in the presence of a peptizer comprising a water dispersable starch to form high chloride radiation-sensitive silver halide grains, wherein the majority of grain growth in the reaction vessel is performed at a pH of less than 3.5. Growth of high chloride silver halide emulsion grains in the presence of a starch peptizer at low pH in accordance with the invention results in emulsion grains with lower fog, even in the absence of the use of strong oxidizing agents and antifoggants during grain precipitation.

    摘要翻译： 公开了一种在水性介质中沉淀高氯化卤化银乳剂的方法，其包括在包含水分散性淀粉的胶溶剂存在下在反应容器中生长有核的卤化银颗粒以形成高氯化物辐射敏感的卤化银颗粒，其中 反应容器中的大部分晶粒生长在小于3.5的pH下进行。 根据本发明，在低pH下的淀粉胶溶剂存在下，高氯化物卤化银乳剂颗粒的生长即使在颗粒沉淀期间不使用强氧化剂和防灰雾剂也会导致具有较低雾度的乳液颗粒。

    Color photographic element containing a fragmentable electron donor in combination with a one equivalent coupler and starch peptized tabular emulsion for improved photographic response
    9.
    发明授权
    Color photographic element containing a fragmentable electron donor in combination with a one equivalent coupler and starch peptized tabular emulsion for improved photographic response 失效
    含有可裂解的电子给体的彩色照相元件与一个等效的成色剂和淀粉胶溶片状乳液组合，用于改善照相反应

    公开(公告)号：US06225036B1

    公开(公告)日：2001-05-01

    申请号：US09533732

    申请日：2000-03-23

    申请人： Joe E. Maskasky ,  Kenneth J. Reed ,  Victor P. Scaccia ,  James A. Friday

    发明人： Joe E. Maskasky ,  Kenneth J. Reed ,  Victor P. Scaccia ,  James A. Friday

    IPC分类号： G03C146

    CPC分类号： G03C1/12 ,  G03C1/0051 ,  G03C1/04 ,  G03C1/10 ,  G03C7/3022 ,  G03C7/305 ,  G03C7/30547 ,  G03C2200/24 ,  Y10S430/156

    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 emulsion layers comprises tabular grains having {111} major faces containing greater than 50 mole percent bromide, and accounting for greater than 50 percent total grain projected area precipitated in a peptizer that is a water dispersible cationic starch, and contains a fragmentable electron donating sensitizer.

    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与其相关联的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，品红色染料影像形成单元包括至少一种绿色 具有与至少一种品红色染料形成成色剂相关联的感光卤化银乳剂层，黄色染料成像单元，其包含至少一种感蓝卤化银乳剂层，其具有至少一种形成黄色染料的成色剂，其中在 所述乳剂层中的至少一个包括具有含有大于50摩尔百分比溴化物的{111}主面的片状颗粒，并且在作为水分散性阳离子淀粉的胶溶剂中沉淀的总颗粒投影面积大于50％，并且含有可分散的 给电子敏化剂。

    Color photographic elements of increased sensitivity containing one equivalent coupler
    10.
    发明授权
    Color photographic elements of increased sensitivity containing one equivalent coupler 失效
    含有一个等效耦合器的灵敏度增加的彩色照相元件

    公开(公告)号：US06187525B1

    公开(公告)日：2001-02-13

    申请号：US09213766

    申请日：1998-12-17

    申请人： Joe E. Maskasky ,  Kenneth J. Reed ,  Victor P. Scaccia ,  James A. Friday

    发明人： Joe E. Maskasky ,  Kenneth J. Reed ,  Victor P. Scaccia ,  James A. Friday

    IPC分类号： G03C108

    CPC分类号： G03C1/04 ,  G03C1/0051 ,  G03C1/10 ,  G03C1/12 ,  G03C7/3022 ,  G03C2200/24 ,  Y10S430/159

    摘要： A photographic recording element is disclosed containing in at least one dye image forming layer unit (a) a radiation-sensitive silver halide grains include tabular grains (1) having {111} major faces, (2) containing greater than 50 mole percent bromide, based on silver, and (3) accounting for greater than 50 percent total grain projected area, (b) a fragmentable electron donating sensitizer, (c) a water dispersible cationic starch peptizer, and (d) a one equivalent dye image providing coupler. Increased photographic speed is realized.

    摘要翻译： 公开了一种照相记录元件，其包含至少一个染料成像层单元（a），辐射敏感卤化银颗粒包括具有{111}主面的片状颗粒（1），（2）含有大于50摩尔百分比的溴化物， （3）占总投影面积的50％以上，（b）可分散的给电子增感剂，（c）水分散性阳离子淀粉胶溶剂，（d）一个等效的染料影像提供成色剂。 实现摄影速度的提高。