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1. 发明授权

US06573021B2 High contrast photographic element containing a novel combination of nucleators 失效
标题翻译：含有新颖的成核剂组合的高对比度照相元件
公开(公告)号：US06573021B2
公开(公告)日：2003-06-03
申请号：US10040672
申请日：2002-01-07
申请人： Julie Baker , Ian Barford , Philip J. Coldrick , Dawn J. Jenkins , Roger H. Piggin
发明人： Julie Baker , Ian Barford , Philip J. Coldrick , Dawn J. Jenkins , Roger H. Piggin
IPC分类号： G03C1295
CPC分类号： G03C1/061 , G03C2001/108 , G03C2200/42
摘要： The invention relates to an ultrahigh contrast photographic material comprising a support bearing a silver halide emulsion layer, containing a combination of two or more hydrazide nucleating agents in the emulsion layer and/or a hydrophilic colloid layer, characterized in that the combination comprises a nucleating agent(s) of formulae (I) and/or (I) with a nucleator of formula (III), in which the nucleating agent of formula (I) comprises (a) two nicotinamide moieties, which may be the same or different, which are linked by a linking group, and (b) a hydrazide moiety linked to only one of those nicotinamide moieties; the nucleating agent of formula (II) comprises a dimeric molecule comprising two monomers linked by a linking group, each monomer of which (a) may be the same or different and (b) comprises a hydrazide moiety and a nicotinamide moiety; and the nucleating agent of formula (III) comprises an aryl sulfonamido aryl hydrazide. The combination of nucleating agents show less sensitivity to variation in the development conditions than do the individual nucleating types, leading to significant improvements in processing robustness with less change in image quality with processing and tolerance to a wider range of developer solutions.
摘要翻译：本发明涉及一种超高对比度照相材料，其包含载体，该载体含有卤化银乳剂层，其在乳剂层和/或亲水胶体层中含有两种或更多种酰肼成核剂的组合，其特征在于，所述组合包含成核剂式（I）的成核剂包含（a）两个可以相同或不同的烟酰胺部分，其可以相同或不同，其中式（I）和/或（I）通过连接基团连接，和（b）仅与那些烟酰胺部分中的一个连接的酰肼部分; 式（II）的成核剂包含包含通过连接基团连接的两个单体的二聚体分子，其每个单体（a）可以相同或不同，（b）包含酰肼部分和烟酰胺部分; 并且式（III）的成核剂包括芳基亚磺酰氨基芳基酰肼。成核剂的组合对显影条件的变化的敏感性比单独的成核类型显示更小的灵敏度，导致加工鲁棒性的显着改善，图像质量的变化较小具有处理和容忍更广泛的开发人员解决方案。

2. 发明授权

US5512415A High contrast photographic silver halide material 失效
标题翻译：高对比度照相卤化银材料
公开(公告)号：US5512415A
公开(公告)日：1996-04-30
申请号：US400078
申请日：1995-03-07
申请人： Allison H. C. Dale , Roger H. Piggin , Michael B. Ledger , David Beaumond
发明人： Allison H. C. Dale , Roger H. Piggin , Michael B. Ledger , David Beaumond
IPC分类号： G03C1/06 , G03C1/09 , G03C1/22 , G03C1/295 , G03C1/46 , G03C1/91
CPC分类号： G03C1/46 , G03C1/061 , G03C1/09 , G03C1/22
摘要： A high-contrast photographic element, adapted for use in the field of graphic arts, includes a hydrazide nucleator and an amine booster and comprises a silver halide emulsion layer which is capable of forming a latent image under conditions of use and a second silver halide emulsion layer which is not capable of forming a latent image under conditions of use.
摘要翻译：适用于图形领域的高对比度照相元件包括酰肼成核剂和胺促进剂，并且包含能够在使用条件下形成潜像的卤化银乳剂层和第二卤化银乳剂在使用条件下不能形成潜像的层。

3. 发明授权

US4433048A Radiation-sensitive silver bromoiodide emulsions, photographic elements, and processes for their use 失效
标题翻译：辐射敏感的溴碘化银乳剂，照相元件及其使用方法
公开(公告)号：US4433048A
公开(公告)日：1984-02-21
申请号：US431913
申请日：1982-09-30
申请人： John C. Solberg , Roger H. Piggin , Herbert S. Wilgus
发明人： John C. Solberg , Roger H. Piggin , Herbert S. Wilgus
IPC分类号： G03C1/005 , G03C1/02
CPC分类号： G03C1/0051
摘要： Radiation-sensitive emulsions are disclosed comprised of a dispersing medium and silver bromoiodide grains. These emulsions contains tabular silver bromoiodide grains having a lower proportion of iodide in a central region than in a laterally displaced region, a thickness of less than 0.3 micron, and a diameter of at least 0.6 micron. These tubular grains exhibit an average aspect ratio of greater than 8:1 and account for at least 50 percent of the total projected area of the silver bromoiodide grains.
摘要翻译：公开了由分散介质和溴碘化银颗粒组成的辐射敏感性乳剂。这些乳剂含有在中心区域中比在横向移位区域中具有较低比例碘化物的片状碘化银银颗粒，厚度小于0.3微米，直径至少为0.6微米。这些管状颗粒的平均纵横比大于8:1，占溴碘化银颗粒总投影面积的至少50％。

4. 发明授权

US5589318A High contrast photographic silver halide material 失效
标题翻译：高对比度照相卤化银材料
公开(公告)号：US5589318A
公开(公告)日：1996-12-31
申请号：US583198
申请日：1996-01-04
申请人： Allison Hazel C. Dale , Roger H. Piggin , Richard A. Hallett , Paul R. McIntyre
发明人： Allison Hazel C. Dale , Roger H. Piggin , Richard A. Hallett , Paul R. McIntyre
IPC分类号： G03C1/035 , G03C1/06 , G03C1/09 , G03C1/12 , G03C1/18 , G03C1/22 , G03C1/26 , G03C1/28 , G03C1/29 , G03C1/295 , G03C5/16 , G03C1/08
CPC分类号： G03C1/035 , G03C1/061 , G03C1/12 , G03C1/09 , G03C1/18 , G03C1/22 , G03C1/26 , G03C1/28 , G03C1/29 , G03C5/16
摘要： A high-contrast photographic material, adapted for use in the field of graphic arts, includes a hydrazide nucleating agent and comprises a silver halide emulsion layer containing silver halide grains which are spectrally sensitized with a non-desorbing sensitizing dye and silver halide grains which are not spectrally sensitized. Preferably, the photographic material also contains a booster compound which enables it to be processed in a developer having a pH of below 11.
摘要翻译：适用于图形领域的高对比度照相材料包括酰肼成核剂，并且包括含有卤化银颗粒的卤化银乳剂层，该卤化银乳剂层用非脱附敏化染料和卤化银颗粒进行光谱增感，没有光谱敏感。优选地，照相材料还含有促进剂化合物，使其能够在pH低于11的显影剂中加工。

5. 发明授权

US5061609A Process of preparing a tabular grain silver bromoiodide emulsion and emulsions produced thereby 失效
标题翻译：制备颗粒状银硼脂乳液和生产乳液的方法
公开(公告)号：US5061609A
公开(公告)日：1991-10-29
申请号：US417144
申请日：1989-10-04
申请人： Roger H. Piggin , Colin J. Bishop
发明人： Roger H. Piggin , Colin J. Bishop
IPC分类号： G03C1/005 , G03C1/015 , G03C1/035
CPC分类号： G03C1/0051 , G03C1/035
摘要： A process is disclosed for the preparation of a tabular grain silver bromoiodide emulsion in which silver bromoiodide laminae are formed on the major faces of the tabular grains. The sensitivity of the emulsion as a function of pressure applied is rendered more nearly constant by forming the silver bromoiodide laminae on the major faces of the tabular grains. The silver bromoiodide laminae are formed on the major faces of the tabular grains with an iodide content higher than that of the host emulsion, and thereafter, within the pAg and temperature boundaries defined by Curve A in FIG. 1, bromide is deposited as a silver salt with the addition of iodide being limited or absent.

6. 发明授权

US5061616A Process of preparing a tabular grain silver bromoiodide emulsion 失效
标题翻译：制备颗粒状银硼脂乳液的方法
公开(公告)号：US5061616A
公开(公告)日：1991-10-29
申请号：US417106
申请日：1989-10-04
申请人： Roger H. Piggin , Philip J. Zola , Ming J. Lin
发明人： Roger H. Piggin , Philip J. Zola , Ming J. Lin
IPC分类号： G03C1/005 , G03C1/015 , G03C1/035
CPC分类号： G03C1/0051
摘要： A process is disclosed for the preparation of a tabular grain silver bromoiodide emulsion in which silver bromoiodide laminae are formed on the major faces of the tabular grains. The sensitivity of the emulsion as a function of pressure applied is rendered more nearly constant by forming the silver bromoiodide laminae on the major faces of the tabular grains within a pAg and temperature range defined by Curve A in FIG. 1. The laminae are formed by first precipitating iodide as a silver salt at peripheral sites on the tabular grains and then precipitating silver bromoiodide onto the major faces of the host tabular grains with the primary source of iodide being the previously deposited iodide. The emulsions produced exhibit high sensitivity to exposing radiation and reduced sensitivity to localized pressure.

7. 发明授权

US06187520B1 Photographic high contrast silver halide material and method of processing 有权
标题翻译：摄影高对比度卤化银材料及其加工方法
公开(公告)号：US06187520B1
公开(公告)日：2001-02-13
申请号：US09335589
申请日：1999-06-18
申请人： Julia Pich , Roger H. Piggin , Mark L. Magill
发明人： Julia Pich , Roger H. Piggin , Mark L. Magill
IPC分类号： G03C529
CPC分类号： G03C1/067 , G03C5/29 , G03C2200/52 , G03C2200/60 , Y10S430/164
摘要： A high contrast photographic material free from nucleating agents comprising a support bearing a silver halide emulsion layer comprising silver halide grains and a hydrophilic colloid having a silver:hydrophilic colloid ratio above 1.9, and containing a density enhancing amine compound in the emulsion layer or an adjacent hydrophilic colloid layer wherein at least 60% of the silver halide grains are spectrally sensitized. A photographic image can be formed from the imagewise exposed material by a method comprising developing the exposed material for a time no longer than 25 seconds at a temperature no greater than 35° C.
摘要翻译：不含成核剂的高对比度感光材料，其包含载体，该载体含有卤化银颗粒的卤化银乳剂层和银：亲水胶体比高于1.9的亲水胶体，并且在乳液层或邻近的层中含有密度增强胺化合物亲水胶体层，其中至少60％的卤化银颗粒是光谱增感的。可以通过包括在不高于35℃的温度下将暴露的材料显影不超过25秒的方法从成像曝光材料形成照相图像。

8. 发明授权

US5985509A Photographic high contrast silver halide material 失效
标题翻译：摄影高对比度卤化银材料
公开(公告)号：US5985509A
公开(公告)日：1999-11-16
申请号：US993089
申请日：1997-12-18
申请人： Allison Hazel C. Dale , Roger H. Piggin
发明人： Allison Hazel C. Dale , Roger H. Piggin
IPC分类号： G03C1/047 , G03C1/005 , G03C1/035 , G03C1/06 , G03C1/295 , G03C1/74 , G03C1/12
CPC分类号： G03C1/067 , G03C1/035 , G03C1/005
摘要： A high contrast photographic material comprises a support bearing a silver halide emulsion layer. This material is free from nucleating agents and has a silver:gelatin ratio greater than 1. The emulsion layer comprises silver halide grains that are spectrally sensitized. Moreover, the material contains a density enhancing amine compound in the emulsion layer or in an adjacent hydrophilic colloid layer. The spectrally sensitized silver halide grains comprise one grain population sensitized to radiation of a particular wavelength region, and one or more additional grain populations sensitized to radiation of a different wavelength region.
摘要翻译：高对比度照相材料包括带有卤化银乳剂层的载体。该材料不含成核剂并且银：明胶比例大于1.乳剂层包含光谱增感的卤化银颗粒。此外，该材料在乳剂层或相邻的亲水胶体层中含有增强密度的胺化合物。光谱增感的卤化银颗粒包括对特定波长区域的辐射敏感的一个谷物群，以及对不同波长区域的辐射敏感的一个或多个另外的颗粒群体。

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