Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
    32.
    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:US06306570B1

    公开(公告)日:2001-10-23

    申请号:US09536300

    申请日:2000-03-27

    IPC分类号: G03C110

    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: 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; and 2) the oxidized form of XY undergoes a bond cleavage reaction to give the radical X• and the leaving fragment Y. In a preferred embodiment of the invention, the radical X• has an oxidation potential ≦−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以得到基团X.和离去片段Y.在本发明的优选实施方案中,基团X具有<= -0.7V的氧化电位。

    Radiographic elements exhibiting increased speed and covering power
    34.
    发明授权
    Radiographic elements exhibiting increased speed and covering power 失效
    表现出增加速度和覆盖力的射线照相元件

    公开(公告)号:US5955249A

    公开(公告)日:1999-09-21

    申请号:US037556

    申请日:1998-03-09

    摘要: A radiographic element is disclosed containing in a high bromide tabular grain emulsion layer a 5-mercaptotetrazole to increase covering power. The 5-mercaptotetrazole is additionally capable of increasing imaging speed and producing colder image tones when provided with a phenyl substituent in the 1 ring position, which phenyl substituent is in turn substituted in its para position with a substituent satisfying the formula R(OCH.sub.2 CH.sub.2).sub.n O-- wherein n is an integer of from zero to 5; when n is 1 to 5, R is hydrogen, methyl or ethyl; and, when n is zero, R is methyl.

    摘要翻译: 公开了一种放射线照相元件,其在高溴化物片状颗粒乳剂层中含有5-巯基四唑以增加覆盖力。 当在1环位置提供苯基取代基时,5-巯基四唑还能够增加成像速度并产生较冷的图像色调,该苯基取代基在其对位取代,其中取代基满足式R(OCH 2 CH 2)n O - 其中n为0至5的整数; 当n为1至5时,R为氢,甲基或乙基; 当n为0时,R为甲基。

    Photographic silver halide elements containing infrared filter dyes
    37.
    发明授权
    Photographic silver halide elements containing infrared filter dyes 失效
    含有红外线滤光染料的摄影卤化银元素

    公开(公告)号:US4871656A

    公开(公告)日:1989-10-03

    申请号:US166134

    申请日:1988-03-10

    IPC分类号: C09B23/01 C09B23/08 G03C1/83

    摘要: A dye useful for absorbing infrared radiation in photographic elements, having the structure: ##STR1## is disclosed. In this formula, R.sub.1 and R.sub.2 each independently represents sulfoalkyl, carboxyalkyl, or sulfatoalkyl, from 2 to 4 carbon atoms, having 2 carbon atoms in the alkyl chain linking the nitrogen atom of each Z ring and the sulfo or sulfato group, and 1 carbon atom in the alkyl chain linking the nitrogen atom of each Z ring and the carboxy group.R.sub.3 and R.sub.5 are each hydrogen or together represent the atoms necessary to complete a 5- or 6-membered carbocyclic ring, and R.sub.4 represents hydrogen, alkyl of 1 to 4 carbon atoms, halogen, cyano, or ##STR2## where R.sub.6 and R.sub.7 each independently represents alkyl of from 1 to 6 carbon atoms or aryl or together represent the non-metallic atoms necessary to form a 5- or 6-membered heterocyclic ring.X.sup..sym. represents a cation.Z.sub.1 and Z.sub.2 each independently represent the atoms needed to complete an indole, naphthindole or benzindole nucleus.

    摘要翻译: 公开了一种用于吸收照相元件中的红外辐射的染料,具有以下结构:。 在该式中,R 1和R 2各自独立地表示在连接每个Z环的氮原子和磺基或硫酸根的烷基链中具有2个碳原子的2至4个碳原子的磺基烷基,羧基烷基或硫酸酯基烷基,以及1个碳 连接每个Z环的氮原子和羧基的烷基链中的原子。 R 3和R 5各自为氢或一起表示完成5-或6-元碳环所必需的原子,R 4表示氢,1-4个碳原子的烷基,卤素,氰基或者其中R 6和R 7各自 独立地表示1至6个碳原子的烷基或芳基或一起表示形成5或6元杂环所必需的非金属原子。 X(+)表示阳离子。 Z1和Z2各自独立地表示完成吲哚,萘啶或萘吲哚核所需的原子。

    Carbamoyloxy substituted couplers in a photothermographic element and
process
    38.
    发明授权
    Carbamoyloxy substituted couplers in a photothermographic element and process 失效
    卡波酰氧基取代的成色剂在光热敏成像元件和工艺中

    公开(公告)号:US4469773A

    公开(公告)日:1984-09-04

    申请号:US504754

    申请日:1983-06-15

    摘要: A coupler containing in the coupling position a carbamoyloxy group ##STR1## upon oxidative coupling, releases a carbamic acid fragment that, in turn, is capable of thermally releasing ammonia or an amine. Such a carbamoyloxy substituted coupler and carbamic acid fragment are useful in imaging such as in photothermography and thermography. Ammonia or an amine released from the carbamic acid fragment enables imaging in imaging materials that are responsive to ammonia or an amine. The carbamoyloxy substituted coupler also generally is a dye-forming coupler that reacts with the oxidized form of a color developing agent to form a dye. An image is produced in an exposed photothermographic material comprising the carbamoyloxy substituted coupler by thermal development. An image is produced in a thermographic material comprising the carbamoyloxy substituted coupler and a color developing agent by imagewise heating the thermographic material.

    摘要翻译: 在偶联位置含有氨基甲酰氧基“IMAGE”的成色剂在氧化偶联时,释放氨基甲酸片段,而氨基甲酸片段又能够热释放氨或胺。 这样的氨基甲酰氧基取代的成色剂和氨基甲酸片段可用于成像,例如光热照相法和热成像法。 从氨基甲酸片段释放的氨或胺使得能够对对氨或胺有响应的成像材料进行成像。 氨基甲酰氧取代的成色剂还通常是与成色染料形成的染料形成成色剂,其与氧化形式的彩色显影剂反应形成染料。 通过热显影在包含氨基甲酰氧基取代的成色剂的暴露的光热敏成像材料中产生图像。 通过成像加热热成像材料,在包含氨基甲酰氧取代的成色剂和彩色显影剂的热成像材料中产生图像。

    Photographic element and process employed combination of surface and
internal latent image silver halide
    39.
    发明授权
    Photographic element and process employed combination of surface and internal latent image silver halide 失效
    摄影元件和工艺采用表面和内部潜像卤化银的组合

    公开(公告)号:US4459351A

    公开(公告)日:1984-07-10

    申请号:US507181

    申请日:1983-06-22

    摘要: A redox release compound that is capable upon oxidation of releasing a silver ion complexing heterocyclic thio moiety enables reduction of the concentration of silver required in a photographic silver halide material comprising a combination of (i) photographic silver halide capable of forming a surface latent image, and (ii) a photographic silver halide capable of forming an internal latent image. The silver halide capable of forming an internal latent image preferably has lower photosensitivity than the silver halide capable of forming a surface latent image. The redox release compound preferably comprises a silver ion complexing 1,2,4-triazolium-3-thio moiety. An image is developed in such an exposed photographic silver halide element by means of a surface type silver halide developer.

    摘要翻译: 能够氧化释放银离子络合杂环硫基部分的氧化还原释放化合物能够降低照相卤化银材料中所需的银的浓度,其包含(i)能够形成表面潜像的照相卤化银, 和(ii)能够形成内部潜像的照相卤化银。 能够形成内部潜像的卤化银优选具有比能够形成表面潜像的卤化银更低的光敏性。 氧化还原释放化合物优选包含配合1,2,4-三唑鎓-3-硫基部分的银离子。 通过表面型卤化银显影剂在这种曝光的照相卤化银元件中显影图像。

    Photothermographic element and process comprising an ammonia or amine
responsive imaging material
    40.
    发明授权
    Photothermographic element and process comprising an ammonia or amine responsive imaging material 失效
    光热成像元件和包含氨或胺响应成像材料的方法

    公开(公告)号:US4430420A

    公开(公告)日:1984-02-07

    申请号:US412443

    申请日:1982-08-27

    申请人: Anthony Adin

    发明人: Anthony Adin

    IPC分类号: G03C1/498 G03C1/02

    CPC分类号: G03C1/498 Y10S430/137

    摘要: In a photothermographic silver halide material and process for preparing an enhanced silver image, an aminosulfonylhydrazone that is capable of developing an image in the photothermographic material and that is capable, upon oxidation, of releasing an aminosulfinic acid, which, in turn, thermally releases ammonia or amine provides a silver image in the photothermographic material and provides ammonia or amine for activation of an ammonia or amine responsive imaging material. After imagewise exposure of the photothermographic material, a silver image enhanced by an image in the ammonia or amine responsive imaging material is produced by heating the photothermographic material.

    摘要翻译: 在光热成像卤化银材料和制备增强的银影像的方法中,氨基磺酰腙能够在光热敏成像材料中显影,并且能够在氧化时释放出氨基亚磺酸,氨基亚磺酸再次热释放氨 或胺在光热敏成像材料中提供银图像,并提供用于活化氨或胺响应成像材料的氨或胺。 在光热敏成像材料的成像曝光之后,通过加热光热成像材料制备通过氨或胺响应成像材料中的图像增强的银图像。