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1. 发明授权

US4425426A Radiographic elements exhibiting reduced crossover 失效
公开(公告)号：US4425426A
公开(公告)日：1984-01-10
申请号：US431910
申请日：1982-09-30
申请人： Thomas I. Abbott , Cynthia G. Jones
发明人： Thomas I. Abbott , Cynthia G. Jones
IPC分类号： G03C1/08 , G03C1/00 , G03C1/005 , G03C1/035 , G03C1/12 , G03C5/16 , G03C1/76
CPC分类号： G03C5/16 , G03C1/0051 , G03C1/12 , G03C2001/0055 , Y10S430/167
摘要： Radiographic elements are disclosed comprised of first and second imaging portions separated by an interposed support capable of transmitting radiation to which the second imaging portion is responsive. At least the first imaging portion includes a silver halide emulsion in which thin tabular silver halide grains of intermediate aspect ratios are present. Spectral sensitizing dye is adsorbed to the surface of the tabular grains. Crossover can be improved in relation to the imaging characteristics.

2. 发明授权

US5176991A Process of preparing for photographic use high chloride tabular grain emulsion 失效
标题翻译：高氯化物片状颗粒乳剂的制备方法
公开(公告)号：US5176991A
公开(公告)日：1993-01-05
申请号：US826568
申请日：1992-01-27
申请人： Cynthia G. Jones , Terrie L. Osborne-Perry
发明人： Cynthia G. Jones , Terrie L. Osborne-Perry
IPC分类号： G03C1/015 , G03C1/005 , G03C1/035 , G03C1/06 , G03C1/07 , G03C1/09
CPC分类号： G03C1/07 , G03C1/0053 , G03C1/015 , G03C1/08 , G03C1/09 , G03C1/12 , G03C2001/0055 , G03C2001/0156 , G03C2001/03517 , G03C2001/091 , G03C2001/095 , G03C2200/03 , G03C2200/43 , G03C2200/44
摘要： A process is disclosed of preparing a high chloride tabular grain emulsion for photographic use. An emulsion comprised of silver halide grains and a gelatino-peptizer dispersing medium in which morphologically unstable tabular grains having {111} major faces account for greater than 50 percent of total grain projected area and contain at least 50 mole percent chloride, based on silver, is formed in the presence of at least one 2-hydroaminoazine or xanthinoid morphological stabilizer adsorbed to surfaces of the tabular grains. Chemical sensitization of the emulsion and protonation of the morphological stabilizer are performed at least in part concurrently. Termination of protonation of the morphological stabilizer retains a portion of the morphological stabilizer on the surfaces of the chemically sensitized tabular grains.
摘要翻译：公开了制备用于照相用途的高氯化物片状颗粒乳剂的方法。由卤化银颗粒和明胶胶溶剂分散介质组成的乳液，其中具有{111}主面的形态不稳定的片状颗粒占总颗粒投影面积的大于50％，并且基于银含有至少50摩尔％的氯化物，在至少一种吸附在片状颗粒表面上的2-氨基亚氨酸或黄素类化合物稳定剂的存在下形成。至少部分同时进行乳液的化学增感和形态稳定剂的质子化。形态稳定剂质子化的终止在化学敏化的片状颗粒的表面上保留形态稳定剂的一部分。

3. 发明授权

US5240825A Preparation of silver halide grains 失效
标题翻译：卤化银颗粒的制备
公开(公告)号：US5240825A
公开(公告)日：1993-08-31
申请号：US864282
申请日：1992-04-06
申请人： Cynthia G. Jones , Terrie L. Osborne-Perry , Sabet K. Salib , Mark E. Irving , Ramesh Jagannathan
发明人： Cynthia G. Jones , Terrie L. Osborne-Perry , Sabet K. Salib , Mark E. Irving , Ramesh Jagannathan
IPC分类号： G03C1/015 , G03C1/035 , G03C1/06
CPC分类号： G03C1/015 , G03C1/035
摘要： The present invention relates to a process of preparing radiation sensitive silver halide grains containing at least 90 mole % silver iodide and having a morphological configuration of four hexagonal bipyramids each with bases joined to form a common tetrahedron. With this process, the hexagonal bipyramid portion of the grains can be elongated and/or truncated. In addition, the fraction of silver halide grains which have a configuration of four hexagonal bipyramids is increased.
摘要翻译：本发明涉及一种制备含有至少90摩尔％碘化银的辐射敏感卤化银颗粒的方法，其具有四个六面体二嘧啶的形态结构，每个具有连接的碱，形成共同的四面体。通过该方法，晶粒的六边形双锥体部分可以被拉长和/或截短。此外，具有四个六面体二嘧啶构型的卤化银颗粒的分数增加。

4. 发明授权

US4186009A Covering power photothermographic material and process 失效
标题翻译：覆盖功率光热成像材料和工艺
公开(公告)号：US4186009A
公开(公告)日：1980-01-29
申请号：US912168
申请日：1978-05-30
申请人： Cynthia G. Jones
发明人： Cynthia G. Jones
IPC分类号： G03C1/498 , G03C5/24 , G03C1/02
CPC分类号： G03C1/49845
摘要： A covering power, heat developable photographic material comprising, in binder, and in reactive association (a) negative-working photosensitive silver halide, (b) an image-forming combination comprising (i) an organic silver salt oxidizing agent containing a heterocyclic thione ligand or 1,2,4-mercaptotriazole ligand with (ii) an organic reducing agent and (c) a nucleating concentration of a hydrazino thiourea nucleating agent, enables a positive image to be developed and, in most cases, stabilized even though the photothermographic material contains no separate post-processing image stabilizer. The heat developable silver halide photographic material also enables development efficiency that is better than in those photothermographic silver halide materials not based on covering power imaging. A positive image can be developed in the heat developable photographic material after imagewise exposure by merely heating the material to moderately elevated temperatures. Other addenda employed in heat developable materials can be useful in the described heat developable photographic materials.
摘要翻译：一种覆盖功率的可显影照相材料，包括粘合剂中和反应性缔合（a）负性光敏卤化银，（b）成像组合，其包含（i）含有杂环硫酮配体的有机银盐氧化剂或具有（ii）有机还原剂的1,2,4-巯基三唑配体和（c）肼基硫脲成核剂的成核浓度使得能够显影正图像，并且在大多数情况下，即使光热成像材料不包含单独的后处理图像稳定器。可热显影的卤化银照相材料还使得显影效率比不基于覆盖功率成像的光热成像卤化银材料更好。通过仅将材料加热至适度升高的温度，可以在成像曝光后的可显影照相材料中显影出正像。用于可热显影材料的其他添加剂可用于所述的可热显影的照相材料。

5. 发明授权

US4439520A Sensitized high aspect ratio silver halide emulsions and photographic elements 失效
标题翻译：敏化的高纵横比卤化银乳剂和摄影元件
公开(公告)号：US4439520A
公开(公告)日：1984-03-27
申请号：US429407
申请日：1982-09-30
申请人： James T. Kofron , Robert E. Booms , Cynthia G. Jones , John A. Haefner , Herbert S. Wilgus , Francis J. Evans
发明人： James T. Kofron , Robert E. Booms , Cynthia G. Jones , John A. Haefner , Herbert S. Wilgus , Francis J. Evans
IPC分类号： G03C1/08 , G03C1/005 , G03C1/035 , G03C1/46 , G03C1/04 , G03C1/12 , G03C7/26
CPC分类号： G03C1/0051
摘要： High aspect ratio chemically and spectrally sensitized tabular grain silver halide emulsions, photographic elements incorporating these emulsions, and processes for the use of the photographic elements are disclosed. In the tabular grain emulsions the silver halide grains having a thickness of less than 0.3 micron and a diameter of at least 0.6 micron have a high aspect ratio and account for at least 50 percent of the total projected area of the silver halide grains present.
摘要翻译：公开了高纵横比化学和光谱增感的片状颗粒卤化银乳剂，掺入这些乳液的照相元件以及使用照相元件的方法。在片状颗粒乳剂中，厚度小于0.3微米，直径至少为0.6微米的卤化银颗粒具有高纵横比，占所存在的卤化银颗粒的总投影面积的至少50％。

6. 发明授权

US4478929A Dye image transfer film unit with tabular silver halide 失效
标题翻译：带有片状卤化银的染料转印膜单元
公开(公告)号：US4478929A
公开(公告)日：1984-10-23
申请号：US553911
申请日：1983-11-21
申请人： Cynthia G. Jones , Cliff O. Hill
发明人： Cynthia G. Jones , Cliff O. Hill
IPC分类号： G03C8/06 , G03C8/08 , G03C5/54 , G03C1/40
CPC分类号： G03C8/08 , G03C8/06
摘要： Photographic dye image transfer film units are disclosed employing negative working high aspect ratio tabular grain silver halide emulsions. The dye image transfer film units can achieve a variety of advantages, such as reductions in silver coverage with diminished reductions in speed, diminished increases in minimum density levels, allowing a transferred image to be rapidly accessible for viewing, and producing lower minimum densities and higher maximum densities for a given time of development, and greater image discrimination. Improvements in other photographic characteristics (such as sharpness), advantageous layer order arrangements, and reduction or elimination of various layers, such as yellow filter layers and scavenger interlayers can be obtained also.
摘要翻译：公开了使用负极高宽比的片状颗粒卤化银乳剂的照相染料转印膜单元。染料转印膜单元可以实现各种优点，例如减少银覆盖率，减少速度降低，降低最小密度水平的增加，允许转移的图像快速进入观察，并产生较低的最小密度和更高的给定发展时间的最大密度，以及更大的图像识别。还可以获得其它照相特性（如清晰度），有利的层顺序布置以及减少或消除各种层的改进，例如黄色滤光层和清除剂层间夹层。

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