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1.发明授权
公开(公告)号：US5843632A
公开(公告)日：1998-12-01
申请号：US883734
申请日：1997-06-27
IPC分类号： G03C1/498
CPC分类号： G03C1/49818 , G03C1/49845
摘要： A photothermographic composition of enhanced photosensitivity is disclosed prepared by a process of (a) precipitating light-sensitive silver halide grains in the presence of a non-aqueous polymeric peptizer and (b) then combining the silver halide grains with a non-aqueous polymeric vehicle containing an oxidation-reduction image-forming combination comprised of an organic silver compound and a reducing agent for the organic silver compound. Light-sensitivity of the silver halide grains is enhanced by, prior to step (b), sensitizing the silver halide grains with a 1,1,3,3-tetra-substituted thiourea or selenourea having an acid dissociation constant of less than 7.0, the thiourea or selenourea being dissolved in an aqueous medium.
摘要翻译： 公开了通过（a）在非水性聚合物胶溶剂存在下沉淀感光卤化银颗粒的方法制备增强光敏性的光热成像组合物，（b）然后将卤化银颗粒与非水性聚合物载体 含有由有机银化合物和有机银化合物的还原剂构成的氧化还原成像组合。 在步骤（b）之前，通过在具有小于7.0的酸解离常数的1,1,3,3-四取代的硫脲或硒脲对卤化银颗粒进行敏化来提高卤化银颗粒的光敏性， 硫脲或硒脲溶解在水性介质中。
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2.发明授权Process of preparing a photothermographic composition of enhanced photosensitivity 失效制备具有增强光敏性的光热敏成像组合物的方法
公开(公告)号：US5858637A
公开(公告)日：1999-01-12
申请号：US883942
申请日：1997-06-27
CPC分类号： G03C1/49845 , G03C1/09 , G03C1/49818 , G03C1/08 , G03C2001/091 , G03C2200/33 , G03C2200/43
摘要： A process of preparing a photothermographic composition of enhanced photosensitivity is disclosed comprised of (a) precipitating light-sensitive silver halide grains in the presence of a non-aqueous polymeric peptizer and (b) then combining the silver halide grains with an oxidation-reduction image-forming combination comprised of an organic silver compound and a reducing agent for the silver organic compound. Light-sensitivity of the silver halide grains is enhanced by, prior to step (b), sensitizing the silver halide grains with a gold sensitizer dissolved in an aqueous medium.
摘要翻译： 公开了一种制备增强的光敏性的光热敏成像组合物的方法，其包括（a）在非水性聚合物胶溶剂存在下沉淀感光卤化银颗粒，和（b）然后将卤化银颗粒与氧化还原图像 由有机银化合物和银有机化合物的还原剂组成。 在步骤（b）之前，通过溶解在水性介质中的金增感剂对卤化银颗粒进行敏化来提高卤化银颗粒的光敏性。
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公开(公告)号：US5840475A
公开(公告)日：1998-11-24
申请号：US740110
申请日：1996-10-28
IPC分类号： G03C1/498
CPC分类号： G03C1/49818
摘要： An element is disclosed containing a photothermographic layer capable of providing a retained viewable image when imagewise exposed and heated. The Layer contains a high chloride {100} tabular grains.
摘要翻译： 公开了一种包含能够在成像曝光和加热时能够提供保持的可观看图像的光热敏成像层的元件。 该层含有高氯化物{100}片状颗粒。
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公开(公告)号：US5876905A
公开(公告)日：1999-03-02
申请号：US822095
申请日：1997-03-20
CPC分类号： G03C5/17 , G03C1/49818 , G03C1/0051 , G03C2001/03517 , G03C2200/01 , Y10S430/167 , Y10S430/168
摘要： A dual-coated radiographic element capable of producing a viewable image when heated following imagewise exposure is disclosed comprised of, on opposite sides of a transparent film, layer units containing radiation-sensitive radiation-sensitive silver halide grains, a light-insensitive source of silver, and a reducing agent for said light-insensitive reducible source of silver. Greater than 50 percent of total projected area of said silver halide grains being provided by tabular grains (a) having {100} major faces, (b) containing greater than 70 mole percent chloride, based on silver, (c) exhibiting an average thickness of less than 0.3 .mu.m, and (d) exhibiting an average equivalent circular diameter of greater than 0.6 .mu.m.
摘要翻译： 公开了一种能够在图像曝光之后加热时产生可视图像的双重涂层放射线照相元件，其在透明膜的相对侧上包括含有辐射敏感的辐射敏感卤化银颗粒的层单元，不透光的银源 ，以及用于所述光不敏感的可还原源的还原剂。 所述卤化银颗粒的总投影面积的大于50％由具有{100}主面的片状颗粒（a）提供，（b）基于银含有大于70摩尔％的氯化物，（c）具有平均厚度 小于0.3μm，（d）平均当量圆直径大于0.6μm。
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5.发明授权
公开(公告)号：US5612176A
公开(公告)日：1997-03-18
申请号：US592251
申请日：1996-01-26
申请人： Lyn M. Eshelman , David H. Levy , Paul J. Madigan
发明人： Lyn M. Eshelman , David H. Levy , Paul J. Madigan
CPC分类号： G03C1/0051 , G03C1/09 , G03C1/29
摘要： Spectrally sensitized tabular grain emulsions are disclosed exhibiting increased speeds and speed-granularity relationships superior to those of conventional emulsions of the same average grain sizes. The tabular grains have {111} major faces, contain greater than 70 mole percent bromide and from 0.25 to 10 mole percent iodide, based on silver, exhibit an average aspect ratio of greater than 50 and an average equivalent circular diameter of >10 micrometers, account for greater than 90 percent of total grain projected area, and have latent image forming chemical sensitization sites on their surfaces including epitaxially deposited silver halide protrusions of a face centered cubic rock salt crystal lattice structure forming epitaxial junctions with the tabular grains. The protrusions are restricted to those portions of the tabular grains (a) located nearest peripheral edges of and (b) accounting for less than 50 percent of the {111} major faces of the tabular grains, contain a silver chloride concentration at least 10 mole percent higher than that of the tabular grains, and include a higher iodide concentration than those portions of the tabular grains extending between the {111} major faces and forming epitaxial junctions with the protrusions.
摘要翻译： 公开了光谱敏化的片状颗粒乳剂，显示出比相同平均粒度的常规乳液的速度和速度 - 粒度关系更好。 片状颗粒具有{111}主面，含有大于70摩尔％的溴化物和0.25至10摩尔％的基于银的碘化物，其平均纵横比大于50，平均当量圆直径> 10微米， 占总颗粒投影面积的90％以上，并且在其表面上具有潜像形成化学致敏位点，包括外延沉积的与片状晶粒外延结构的面心立方岩盐晶格结构的卤化银突起。 突出部分限于位于最近外围边缘的片状颗粒（a）的部分，（b）占片状颗粒的{111}主面的少于50％，含有至少10摩尔的氯化银浓度 并且包括比在{111}主面之间延伸的片状颗粒的部分更高的碘化物浓度，并且形成与突起物的外延结。
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6.发明授权High speed emulsions exhibiting superior contrast and speed-granularity relationships 失效显示出优异的对比度和速度 - 粒度关系的高速乳液
公开(公告)号：US5614359A
公开(公告)日：1997-03-25
申请号：US592798
申请日：1996-01-26
申请人： Lyn M. Eshelman , David H. Levy , Paul J. Madigan
发明人： Lyn M. Eshelman , David H. Levy , Paul J. Madigan
CPC分类号： G03C1/0051
摘要： Spectrally sensitized tabular grain emulsions are disclosed exhibiting (1) increased speeds and (2) contrasts and speed-granularity relationships superior to those of conventional emulsions of the same average grain sizes. The tabular grains have {111} major faces, contain greater than 80 mole percent bromide, based on silver, and are substantially free of iodide, exhibit an average aspect ratio of greater than 50 and an average equivalent circular diameter of >10 micrometers, account for greater than 90 percent of total grain projected area, and have latent image forming chemical sensitization sites on their surfaces including epitaxially deposited silver halide protrusions of a face centered cubic rock salt crystal lattice structure forming epitaxial junctions with the tabular grains. The protrusions are restricted to those portions of the tabular grains (a) located nearest peripheral edges of and (b) accounting for less than 50 percent of the {111} major faces of the tabular grains. The protrusions contain silver iodide and a silver chloride concentration at least 10 mole percent higher than that of the tabular grains.
摘要翻译： 公开了光谱敏化的片状颗粒乳剂，其显示出（1）增加的速度和（2）对比度和速度 - 粒度关系优于相同平均粒度的常规乳液。 片状颗粒具有{111}主面，基于银含有大于80摩尔％的溴化物，并且基本上不含碘化物，具有大于50的平均长径比和> 10微米的平均当量圆直径， 占总颗粒投影面积的90％以上，并且在其表面上具有潜像形成化学增感位点，包括外表面沉积的与片状颗粒形成外延结的立方岩盐晶格结构的卤化银突起。 突出部分限于位于最近外围边缘的片状颗粒（a）的那些部分，（b）占片状颗粒的{111}主面的少于50％。 这些突起包含碘化银和氯化银浓度比片状颗粒高至少10摩尔％。
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公开(公告)号：US5612177A
公开(公告)日：1997-03-18
申请号：US592827
申请日：1996-01-26
CPC分类号： G03C1/0051
摘要： A radiation-sensitive high bromide {111} tabular grain emulsion is disclosed in which at least 90 percent of silver halide epitaxy of an isomorphic face centered cubic crystal lattice structure containing at least 1 mole percent iodide is deposited on the {111} major faces in the form of monocrystalline terraces. Each epitaxial terrace is grown from a nucleation site along an edge of a {111} major face inwardly, with terraces overlying less than 25 percent of the {111} major faces. Surprisingly, these emulsions exhibit higher photographic speeds than those produced by growing silver halide epitaxy outwardly as protrusions from the corners or edges of the tabular grains.
摘要翻译： 公开了辐射敏感的高溴酸盐{111}片状颗粒乳剂，其中至少90％的含有至少1摩尔百分比碘化物的同构面心立方晶格结构的卤化银外延沉积在{111}主面上 单晶梯田的形式。 每个外延平台从沿着{111}主面的边缘的成核位置向内生长，梯田覆盖不到{111}主面的不到25％。 令人惊讶的是，这些乳液表现出比通过生长卤化银外延产生的那些更高的照相速度，作为从片状颗粒的角部或边缘的突起。
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8.发明授权Epitaxially sensitized tabular grain emulsions exhibiting enhanced speed and contrast 失效显示出增强的速度和对比度的外源敏化的片状颗粒乳剂
公开(公告)号：US5612175A
公开(公告)日：1997-03-18
申请号：US592169
申请日：1996-01-26
申请人： Lyn M. Eshelman , Paul J. Madigan , Joseph C. Deaton , David A. Dumont , Michael G. Antoniades , Sharon G. Johnston
发明人： Lyn M. Eshelman , Paul J. Madigan , Joseph C. Deaton , David A. Dumont , Michael G. Antoniades , Sharon G. Johnston
CPC分类号： G03C1/0051 , G03C1/09 , G03C1/12
摘要： A radiation-sensitive spectrally sensitized tabular grain emulsion is disclosed which exhibits improved speed and contrast. The tabular grains have {111} major faces, contain greater than 70 mole percent bromide and up to 10 mole percent iodide, based on silver, account for greater than 90 percent of total grain projected area, and have an average equivalent circular diameter of at least 3.5 .mu.m. The tabular grains have latent image forming chemical sensitization sites on their surfaces including epitaxially deposited silver halide protrusions of a face centered cubic rock salt crystal lattice structure forming epitaxial junctions with the tabular grains. The protrusions are restricted to those portions of the tabular grains located nearest peripheral edges of and accounting for less than 10 percent of the {111} major faces of the tabular grains, accounting for less than 5 percent of total silver forming the tabular grains and protrusions, containing a silver chloride concentration at least 10 mole percent higher than that of the tabular grains, and contain at least 1 mole percent iodide, based on silver in the protrusions.
摘要翻译： 公开了辐射敏感的光谱敏化片状颗粒乳剂，其显示出改进的速度和对比度。 片状颗粒具有{111}主面，含有大于70摩尔百分比的溴和基于银的高达10摩尔％的碘，占总颗粒投影面积的大于90％，并且具有平均当量圆直径 至少3.5亩。 片状颗粒在它们的表面上具有潜像形成的化学增感位点，包括外面沉积的卤化银突起，其表面立方岩盐晶格结构与片状颗粒形成外延结。 突出部分限于位于最近周边边缘的片状颗粒的部分，并且占片状颗粒的{111}主面的少于10％，占形成片状颗粒和突起的总银的小于5％ ，其含有比片状颗粒高至少10摩尔％的氯化银浓度，并且基于突起中的银含有至少1摩尔％的碘化物。
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公开(公告)号：US6040131A
公开(公告)日：2000-03-21
申请号：US290291
申请日：1999-04-13
申请人： Lyn M. Eshelman , Timothy W. Stoebe
发明人： Lyn M. Eshelman , Timothy W. Stoebe
CPC分类号： G03C7/30 , G03C1/49818 , G03C1/49881 , G03C5/04 , G03C7/00 , G03C7/3022
摘要： A camera-speed color photothermographic imaging method is disclosed. A photothermographic film is employed that contains a photographically responsive, thermally developable panchromatically sensitized emulsion layer unit capable of concurrently forming silver and dye image densities. The emulsion layer unit is exposed in three separate image capture areas to blue, green or red light received from the photographic subject to create latent images of blue, green and red light exposure. The photothermographic element is thermally processed to produce images of the same hue in each of the three separate image capture areas. The images of blue, green and red light exposures are then converted into a corresponding additive or subtractive primary hue, and integrated to provide a positive or negative color image of the photographic subject.
摘要翻译： 公开了一种相机速度彩色光热成像方法。 使用光热敏成像膜，其包含能够同时形成银和染料图像密度的照相响应的可热显影的全色增感乳剂层单元。 乳剂层单元在三个单独的图像捕获区域中暴露于从摄影对象接收的蓝色，绿色或红色光，以产生蓝色，绿色和红色光照射的潜像。 光热敏成像元件被热处理以在三个分离的图像捕获区域中的每一个中产生相同色调的图像。 然后将蓝色，绿色和红色光照射的图像转换成相应的添加剂或减色原色调，并将其整合以提供摄影对象的正或负色彩图像。
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公开(公告)号：US5963307A
公开(公告)日：1999-10-05
申请号：US045382
申请日：1998-03-20
申请人： Lyn M. Eshelman , Timothy W. Stoebe
发明人： Lyn M. Eshelman , Timothy W. Stoebe
CPC分类号： G03C7/30 , G03C1/49818 , G03C1/49881 , G03C5/04 , G03C7/00 , G03C7/3022
摘要： A camera-speed color photothermographic imaging method is disclosed. A photothermographic film is employed that contains a photographically responsive, thermally developable panchromatically sensitized emulsion layer unit capable of concurrently forming silver and dye image densities. The emulsion layer unit is exposed in three separate image capture areas to blue, green or red light received from the photographic subject to create latent images of blue, green and red light exposure. The photothermographic element is thermally processed to produce images of the same hue in each of the three separate image capture areas. The images of blue, green and red light exposures are then converted into a corresponding additive or subtractive primary hue, and integrated to provide a positive or negative color image of the photographic subject.
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