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    Blue spectrally sensitized film for radiography, imaging assembly and method
    21.
    发明授权
    Blue spectrally sensitized film for radiography, imaging assembly and method 失效
    蓝光谱增感胶片用于放射成像，成像组装和方法

    公开(公告)号：US06686116B1

    公开(公告)日：2004-02-03

    申请号：US10397435

    申请日：2003-03-26

    申请人： Robert E. Dickerson ,  Anthony Adin ,  Stephen A. Hershey ,  Richard F. Davis

    发明人： Robert E. Dickerson ,  Anthony Adin ,  Stephen A. Hershey ,  Richard F. Davis

    IPC分类号： G03C517

    CPC分类号： G03C5/16 ,  G03C1/047 ,  G03C1/16 ,  G03C1/29 ,  G03C1/46 ,  G03C5/17 ,  G03C5/26 ,  G03C2001/0055 ,  G03C2001/03511 ,  G03C2001/03535 ,  G03C2007/3025 ,  G03C2200/27 ,  G03C2200/52 ,  Y10S430/167 ,  Y10S430/168

    摘要： A blue-sensitive radiographic silver halide film comprises a silver halide emulsion layer comprising predominantly tabular silver halide grains that have an aspect ratio of at least 15, a grain thickness of at least 0.1 &mgr;m, and comprise at least 90 mol % bromide and up to 4 mol % iodide, based on total silver halide. Substantially all of the iodide is present in an internal localized portion of the tabular silver halide grains that excludes the surface of the grains. The tabular silver halide grains are dispersed in a hydrophilic polymeric vehicle mixture comprising at least 0.5% of oxidized gelatin, based on the total dry weight of the polymeric vehicle mixture in the emulsion layer. The tabular silver halide grains are spectrally sensitized using a combination of spectral sensitizing dyes to provide increased speed and reduced dye stain. The dyes have maximum J-aggregate absorptions on the tabular silver halide grains of from about 380 to about 500 nm, wherein the maximum J-aggregate absorption of one spectral sensitizing dye is from about 20 to about 50 nm lower in wavelength than the maximum J-aggregate absorption of the second spectral sensitizing dye.

    摘要翻译： 蓝色感光放射线卤化银膜包括卤化银乳剂层，其主要包含片状卤化银颗粒，其长宽比至少为15，晶粒厚度为至少0.1μm，并且包含至少90mol％的溴化物，直到 4mol％碘化物，基于总卤化银。 基本上所有的碘化物都存在于不排除颗粒表面的片状卤化银颗粒的局部部分内。 片状卤化银颗粒分散在包含至少0.5％氧化明胶的亲水性聚合物载体混合物中，基于乳液层中聚合物载体混合物的总干重。 片状卤化银颗粒使用光谱增感染料的组合进行光谱增感，以提高速度和减少染色剂染色。 这些染料在约380至约500nm的片状卤化银颗粒上具有最大的J-聚集体吸收，其中一种光谱增感染料的最大J-聚集体吸收值比最大J值低约20至约50nm 聚集的第二光谱增感染料的吸收。

    Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
    23.
    发明授权
    Silver halide light sensitive emulsion layer having enhanced photographic sensitivity 失效
    具有增强的照相感光度的卤化银感光乳剂层

    公开(公告)号：US6054260A

    公开(公告)日：2000-04-25

    申请号：US118714

    申请日：1998-07-17

    申请人： Anthony Adin ,  Jerome J. Looker ,  Samir Y. Farid ,  Ian R. Gould ,  Stephen A. Godleski ,  Jerome R. Lenhard ,  Annabel A. Muenter ,  Lal C. Vishwakarma ,  Paul A. Zielinski

    发明人： Anthony Adin ,  Jerome J. Looker ,  Samir Y. Farid ,  Ian R. Gould ,  Stephen A. Godleski ,  Jerome R. Lenhard ,  Annabel A. Muenter ,  Lal C. Vishwakarma ,  Paul A. Zielinski

    IPC分类号： G03C1/09 ,  G03C1/10 ,  G03C1/12

    CPC分类号： G03C1/10 ,  G03C1/12 ,  G03C2200/24

    摘要： A photographic element comprising at least one silver halide emulsion layer in which the silver halide is sensitized with a compound of the formula: ##STR1## wherein A is a silver halide adsorptive group that contains at least one atom of N, S, Se, or Te that promotes adsorption to silver halide, and Z is a light absorbing group including for example cyanine dyes, complex cyanine dyes, merocyanine dyes, complex merocyanine dyes, homopolar cyanine dyes, styryl dyes, oxonol dyes, hemioxonol dyes, and hemicyanine dyes, and XY is an fragmentable electron donor moiety in which X is an electron donor group and Y is a leaving group other than hydrogen, and wherein:1) XY has an oxidation potential between 0 and about 1.4 V; and2) the oxidized form of XY undergoes a bond cleavage reaction to give the radical X.sup..cndot. and the leaving fragment Y.In a preferred embodiment of the invention, the radical X.sup..cndot. has an oxidation potential .ltoreq.-0.7 V.

    摘要翻译： 一种照相元件，包括至少一个卤化银乳剂层，其中卤化银用下式化合物致敏：其中A是含有至少一个促进的N，S，Se或Te原子的卤化银吸附基团 Z为吸光性基团，例如为花青染料，复合花青染料，部花菁染料，复色部花青染料，单极花青染料，苯乙烯基染料，氧杂菁染料，半氧杂菁染料，半花青染料，XY为 其中X是电子给体基团，Y是除氢以外的离去基团，其中：1）XY具有介于0和约1.4V之间的氧化电位; 和2）XY的氧化形式经历键断裂反应，得到基团X.和离去片段Y.在本发明的一个优选实施方案中，基团X的氧化电势为-0.7V。

    Ballasted optical brighteners
    27.
    发明授权
    Ballasted optical brighteners 失效
    镇流荧光增白剂

    公开(公告)号：US5395748A

    公开(公告)日：1995-03-07

    申请号：US164091

    申请日：1993-12-08

    申请人： Anthony Adin ,  Pranab Bagchi

    发明人： Anthony Adin ,  Pranab Bagchi

    IPC分类号： C09B57/00 ,  D06L3/12 ,  G03C1/047 ,  G03C1/815

    CPC分类号： G03C1/8155 ,  D06L3/12 ,  D06L3/1214 ,  G03C1/047 ,  Y10S430/134

    摘要： An inexpensive, ballasted optical brightener for use in photographic elements is prepared by reacting an optical brightener of the formula ##STR1## where M is a cation; X is a group capable of undergoing nucleophilic displacement; and Z is ##STR2## or --O--R.sub.3, where each of R1 and R2 is a hydrogen atom, or an aromatic group which can be unsubstituted or substituted with one or more groups unreactive towards X; and R3 is an aromatic group which can be unsubstituted or substituted with one or more groups unreactive towards Xwith a water soluble polymer, such as gelatin. The resulting ballasted optical brightener is stable in aqueous photographic compositions.

    摘要翻译： 用于照相元件的廉价的镇流荧光增白剂通过使式（IMA）的光学增白剂（其中M是阳离子）反应来制备; X是能够进行亲核取代的基团; 或者是R 1和R 2为氢原子的Z为<或>，或者可以是未取代的或被一个或多个对X不反应的基团取代的芳基; 并且R 3是可以是未被取代的或被一个或多个与X一起反应的基团与水溶性聚合物如明胶取代的芳族基团。 所得到的镇流荧光增白剂在水性照相组合物中是稳定的。

    Nucleated high contrast photographic elements containing tetraazaindenes which inhibit pepper fog
    28.
    发明授权
    Nucleated high contrast photographic elements containing tetraazaindenes which inhibit pepper fog 失效
    成核的高对比度摄影元素含有抑制胡椒雾的四氮茚

    公开(公告)号：US5256519A

    公开(公告)日：1993-10-26

    申请号：US844337

    申请日：1992-03-02

    申请人： Anthony Adin

    发明人： Anthony Adin

    IPC分类号： G03C1/06

    CPC分类号： G03C1/061

    摘要： Silver halide photographic elements which are capable of high contrast development and are especially useful in the field of graphic arts have incorporated therein a hydrazine compound which functions as a nucleator, an amino compound which functions as an incorporated booster, and a 2-substituted-4-hydroxy-1,3,3a,7-tetraazaindene which functions to inhibit pepper fog.

    摘要翻译： 能够进行高对比度显影且在图形领域中特别有用的卤化银照相元件，其中引入了作为成核剂起作用的肼化合物，作为掺入促进剂起作用的氨基化合物和2-取代-4 - 羟基-1,3,3a，7-四氮杂茚，其功能是抑制胡椒雾。

    Transition metal photoreduction systems and processes
    29.
    发明授权
    Transition metal photoreduction systems and processes 失效
    过渡金属光还原系统和工艺

    公开(公告)号：US4324852A

    公开(公告)日：1982-04-13

    申请号：US46532

    申请日：1979-06-07

    申请人： Anthony Adin ,  James C. Fleming

    发明人： Anthony Adin ,  James C. Fleming

    IPC分类号： B41M5/32 ,  G03C1/67 ,  G03C1/52 ,  G03C1/00 ,  G03C1/72 ,  G03C5/24

    CPC分类号： G03C1/67 ,  B41M5/32 ,  Y10S430/137

    摘要： A radiation-sensitive element is disclosed including a radiation-sensitive layer comprised of a cobalt(III)complex and a photoreductant. A process is disclosed in which the photoreductant is converted to a reducing agent by exposure to electromagnetic radiation longer than 300 nanometers. The reducing agent is then reacted with a cobalt(III)complex. Images can be recorded directly within the radiation-sensitive layer or in a separate image-recording element or layer by use of the residual cobalt(III)complex not exposed or one or more of the reaction products produced by exposure. By using the ammonia liberated from ammine ligand containing cobalt(III)complexes on exposure in combination with imagewise and uniform exposures, positive or negative images can be formed in diazo image-recording layers or elements associated with the radiation-sensitive layer.

    摘要翻译： 公开了一种辐射敏感元件，其包括由钴（III）络合物和光致感光体组成的辐射敏感层。 公开了一种方法，其中通过暴露于长于300纳米的电磁辐射将光致感光体转化为还原剂。 然后还原剂与钴（III）络合物反应。 可以通过使用未暴露的残留的钴（III）络合物或通过曝光产生的一种或多种反应产物，将图像直接记录在辐射敏感层内或在单独的图像记录元件或层中。 通过使用从暴露于曝光后的氨基配体释放的氨与成像均匀的曝光结合使用，可以在重叠图像记录层或与辐射敏感层相关的元件上形成正或负的图像。

    Transition metal photoreduction systems and processes
    30.
    发明授权
    Transition metal photoreduction systems and processes 失效

    公开(公告)号：US4314019A

    公开(公告)日：1982-02-02

    申请号：US63643

    申请日：1979-08-02

    申请人： Anthony Adin ,  James C. Fleming

    发明人： Anthony Adin ,  James C. Fleming

    IPC分类号： G03C1/67 ,  G03C1/72

    CPC分类号： G03C1/67 ,  Y10S430/137

    摘要： A radiation-sensitive element is disclosed including a radiation-sensitive layer comprised of a cobalt(III)complex and a photoreductant. A process is disclosed in which the photoreductant is converted to a reducing agent by exposure to electromagnetic radiation longer than 300 nanometers. The reducing agent is then reacted with a cobalt(III)complex. Images can be recorded directly within the radiation-sensitive layer or in a separate image-recording element or layer by use of the residual cobalt(III)complex not exposed or one or more of the reaction products produced by exposure. By using the ammonia liberated from ammine ligand containing cobalt(III)complexes on exposure in combination with imagewise and uniform exposures, positive or negative images can be formed in diazo image-recording layers or elements associated with the radiation-sensitive layer. By the selection of amine-responsive reducing agent precursors, the amines released by the cobalt(III)complexes cause an amplified image.