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公开(公告)号：US5272048A
公开(公告)日：1993-12-21
申请号：US846306
申请日：1992-03-04
申请人： Sang H. Kim , Mamie Kam-Ng , Allen K. Tsaur , Jacob I. Cohen , Richard A. Demauriac , George H. Hawks, III , John D. Baloga
发明人： Sang H. Kim , Mamie Kam-Ng , Allen K. Tsaur , Jacob I. Cohen , Richard A. Demauriac , George H. Hawks, III , John D. Baloga
IPC分类号： G03C1/015 , G03C1/035 , G03C1/043 , G03C1/07 , G03C7/00 , G03C7/26 , G03C7/30 , G03C7/396 , G03C1/46
CPC分类号： G03C7/396 , G03C7/3022
摘要： A multicolor photographic element capable of forming a viewable reversal dye image is disclosed comprising a support and, coated on the support, a blue recording yellow dye image forming layer unit, a green recording magenta dye image forming layer unit, and a red recording cyan dye image forming layer unit, each of the layer units containing in at least one layer a silver halide emulsion having a grain halide content of from 0 to 5 mole percent chloride, from. 0.5 to 20 mole percent iodide, and from 80 to 99.5 mole percent bromide, based on total silver.The photographic element is characterized in that at least one of the silver halide emulsion layers is a tabular grain emulsion layer in which the coefficient of variation of the tabular grain emulsion is less than 15 percent, based on the total grain population of the emulsion, and the total grain population of the tabular emulsion consists essentially of tabular grains having a mean thickness of less than 0.3 .mu.m and a mean tabularity of greater than 25.
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公开(公告)号：US4283477A
公开(公告)日：1981-08-11
申请号：US956828
申请日：1978-11-02
摘要： In a photothermographic element comprising (A) at least one photosensitive layer comprising a photosensitive component, such as photosensitive silver halide or a diazotype photosensitive material, (B) at least one layer comprising a processing agent for the photosensitive component and (C) a separation polymer between (A) and (B), increased preexposure storage stability is provided by a polysulfonamide as separation polymer (C). After imagewise exposure of the photothermographic element, an image can be developed by merely heating the element to moderately elevated temperatures.
摘要翻译： 在光热敏成像元件中，其包含（A）至少一层包含感光性成分的感光层，例如光敏卤化银或重氮型感光材料，（B）至少一层包含感光性成分的处理剂，（C） （A）和（B）之间的聚合物，增加的预曝光储存稳定性由聚磺酰胺作为分离聚合物（C）提供。 在光热敏成像元件的成像曝光之后，可以通过仅将元件加热到适度升高的温度来显影图像。
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公开(公告)号：US4128557A
公开(公告)日：1978-12-05
申请号：US848254
申请日：1977-11-03
IPC分类号： C07D249/14 , G03C1/498 , C07F1/10 , G03C1/02
CPC分类号： C07D249/14 , G03C1/49809
摘要： A photothermographic material comprising in reactive association (a) photosensitive silver halide, (b) an image-forming combination comprising (i) a silver salt of certain 1,2,4-mercaptotriazole derivatives with (ii) a silver halide developing agent, and (c) a polymeric binder, provides developed images without the need for processing solutions or baths. An image can be developed in this material by merely heating the material to moderately elevated temperatures. The silver salts of certain 3-amino-1,2,4-mercaptotriazole derivatives are particularly preferred compounds. Other addenda employed in heat developable photothermographic materials, such as sensitizing dyes, can be employed with the photothermographic materials described.
摘要翻译： 一种光热敏成像材料，其包含反应性缔合（a）感光卤化银，（b）成像组合，其包含（i）某些1,2,4-巯基三唑衍生物的银盐与（ii）卤化银显影剂，和 （c）聚合物粘合剂，提供显影图像，而不需要处理溶液或浴液。 通过仅将材料加热到适度升高的温度，可以在该材料中开发图像。 某些3-氨基-1,2,4-巯基三唑衍生物的银盐是特别优选的化合物。 用于可热显影光热敏成像材料（如敏化染料）的其他添加剂可以与所描述的光热成像材料一起使用。
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4.发明授权Tabular grain emulsion containing reversal photographic elements exhibiting improved sharpness in underlying layers 失效包含反向摄影元素的片状颗粒乳液在下层显示出改善的锐度
公开(公告)号：US5236817A
公开(公告)日：1993-08-17
申请号：US860664
申请日：1992-03-30
申请人： Sang H. Kim , Mamie Kam-Ng , Allen K. Tsaur , Jacob I. Cohen , Richard A. Demauriac , George H. Hawks, III , John D. Baloga
发明人： Sang H. Kim , Mamie Kam-Ng , Allen K. Tsaur , Jacob I. Cohen , Richard A. Demauriac , George H. Hawks, III , John D. Baloga
CPC分类号： G03C7/396 , G03C7/3022
摘要： A multicolor photographic element capable of forming a viewable reversal dye image is disclosed comprising a support and, coated on the support, a blue recording yellow dye image forming layer unit, a green recording magenta dye image forming layer unit, and a red recording cyan dye image forming layer unit, each of the dye image forming layer units containing at least one silver halide emulsion layer comprised of a vehicle and silver halide grains having (1) a halide content of from 0 to 5 mole percent chloride, from 0.1 to 20 mole percent iodide, and from 80 to 99.9 mole percent bromide, based on total silver. At least one of the silver halide emulsion layers in one of the layer units positioned to receive exposing radiation prior to at least one of the green or red recording layer units is a tabular grain emulsion layer in which a polyalkylene oxide block copolymer is present selected to allow the preparation of tabular grains having a mean thickness of less than 0.3 .mu.m and a mean tabularity of greater than 25, accounting for greater than 97 percent of the total projected area of grains having an equivalent circular diameter of at least 0.2 .mu.m.
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公开(公告)号：US4220709A
公开(公告)日：1980-09-02
申请号：US858876
申请日：1977-12-08
申请人： Richard A. deMauriac
发明人： Richard A. deMauriac
CPC分类号： G03C1/49809
摘要： A heat developable photographic material comprising in reactive association (a) photosensitive silver halide, (b) an image-forming combination comprising (i) a complex of silver with a nitrogen acid selected from the group consisting of imidazole, pyrazole, urazole, 1,2,4-triazole and 1H-tetrazole nitrogen acids or combinations thereof, with (ii) an organic reducing agent, and (c) a polymeric binder, provide developed images without the need for processing solutions or baths. An image can be developed in this heat developable material by merely heating the material to moderately elevated temperatures. Other addenda employed in heat developable materials can be employed with the heat developable photographic materials described.
摘要翻译： 一种可显影照相材料，其包含反应性缔合（a）感光卤化银，（b）成像组合，其包含（i）银与氮酸的配合物，所述氮与选自咪唑，吡唑， 与（ii）有机还原剂，和（c）聚合物粘合剂，提供显影图像而不需要处理溶液或浴液的2,4-二恶唑和1H-四唑氮酸或其组合。 可以通过仅将材料加热到适度升高的温度，在该可热显影材料中形成图像。 可用于可显影材料的其他添加剂可以与所述的可热显影的照相材料一起使用。
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公开(公告)号：US4123274A
公开(公告)日：1978-10-31
申请号：US778183
申请日：1977-03-16
CPC分类号： C07D249/14 , G03C1/49809
摘要： A photothermographic material comprising in reactive association (a) photosensitive silver halide, (b) an image-forming combination comprising (i) a silver salt of certain 1,2,4-mercaptotriazole derivatives with (ii) a silver halide developing agent, and (c) a polymeric binder, provides developed images without the need for processing solutions or baths. An image can be developed in this material by merely heating the material to moderately elevated temperatures. The silver salts of certain 3-amino-1,2,4-mercaptotriazole derivatives are particularly preferred compounds. Other addenda employed in heat developable photothermographic materials, such as sensitizing dyes, can be employed with the photothermographic materials described.
摘要翻译： 一种光热敏成像材料，其包含反应性缔合（a）感光卤化银，（b）成像组合，其包含（i）某些1,2,4-巯基三唑衍生物的银盐与（ii）卤化银显影剂，和 （c）聚合物粘合剂，提供显影图像，而不需要处理溶液或浴液。 通过仅将材料加热到适度升高的温度，可以在该材料中开发图像。 某些3-氨基-1,2,4-巯基三唑衍生物的银盐是特别优选的化合物。 用于可热显影光热敏成像材料（如敏化染料）的其他添加剂可以与所描述的光热成像材料一起使用。
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