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206 条记录 (耗时 0.028 秒)

    Photographic element containing a speed-enhancing compound
    1.
    发明授权
    Photographic element containing a speed-enhancing compound 失效
    含有增速化合物的摄影元件

    公开(公告)号：US07455959B2

    公开(公告)日：2008-11-25

    申请号：US10574669

    申请日：2004-10-01

    申请人： Bernard A. Clark ,  Philip A. Allway ,  Tania Zuberi ,  Stephen P. Singer ,  Charles E. Heckler ,  Louis E. Friedrich

    发明人： Bernard A. Clark ,  Philip A. Allway ,  Tania Zuberi ,  Stephen P. Singer ,  Charles E. Heckler ,  Louis E. Friedrich

    IPC分类号： G03C1/46 ,  G03C1/06 ,  G03C1/36 ,  G03C1/08 ,  G03C5/18

    CPC分类号： G03C7/39252 ,  G03C7/3022 ,  G03C7/3029 ,  G03C7/3924 ,  G03C2001/03511 ,  G03C2007/3034

    摘要： The invention provides a color photographic element comprising at least one light-sensitive silver halide emulsion layer or a non silver-containing light-insensitive layer, in which at least one of these layers contains a colorless imidazole compound of formula (I) that undergoes less than 10% chemical or redox reaction with oxidized developer and which enables the photographic speed of the element to be increased by at least 0.05 stop without increasing granularity, compared to the same element without the compound, wherein the compound of formula (I) has the structure: wherein X is H or a substituent; Z represents the atoms necessary to complete an unsubstituted or substituted imidazole ring, which may form part of a fused unsubstituted or substituted ring system containing no further ring heteroatoms; wherein there is present at least one —NH group either in the imidazole ring or directly attached to the imidazole ring as part of X; provided that (a) when Z represents the atoms necessary to complete an unsubstituted or substituted benzimidazole ring, an —NH group is directly attached to the imidazole ring as part of X, and X is located between the imidazole nitrogen atoms; (b) when the —NH group is located in the ring adjacent to the carbon atom bearing X, and X is located between the imidazole nitrogen atoms, the imidazole ring is not fused to a phenanthrene ring. The compounds of formula (I) increase speed without a concomitant increase in size of the light-sensitive silver halide grains.

    摘要翻译： 本发明提供了一种彩色照相元件，其包括至少一种感光卤化银乳剂层或不含银的光不敏感层，其中这些层中的至少一层含有经历较少的式（I）的无色咪唑化合物 与氧化显影剂进行10％以上的化学或氧化还原反应，并且与没有化合物的相同元素相比，使得元件的照相速度可以提高至少0.05个停止而不增加粒度，其中式（I）化合物具有 结构：其中X是H或取代基; Z表示完成未取代或取代的咪唑环所必需的原子，其可以形成不含其它环杂原子的稠合未取代或取代的环系的一部分; 其中在咪唑环中存在至少一个-NH基团或作为X的一部分直接连接到咪唑环上; 条件是（a）当Z表示完成未取代或取代的苯并咪唑环所需的原子时，-NH基团作为X的一部分直接连接到咪唑环上，X位于咪唑氮原子之间; （b）当-NH基团位于与带有X的碳原子相邻的环中，X位于咪唑氮原子之间时，咪唑环不与菲环稠合。 式（I）的化合物增加速度，而不会伴随着感光卤化银颗粒的尺寸增加。

    Method for processing roomlight handleable radiographic films using two-stage development
    4.
    发明授权
    Method for processing roomlight handleable radiographic films using two-stage development 失效
    使用两阶段开发处理室内可处理射线照相胶片的方法

    公开(公告)号：US5871890A

    公开(公告)日：1999-02-16

    申请号：US970869

    申请日：1997-11-14

    申请人： Alan S. Fitterman ,  Jeffrey S. Baugher ,  Robert E. Dickerson

    发明人： Alan S. Fitterman ,  Jeffrey S. Baugher ,  Robert E. Dickerson

    IPC分类号： G03C1/005 ,  G03C1/36 ,  G03C1/83 ,  G03C5/16 ,  G03C5/26 ,  G03C5/38 ,  G03D3/06 ,  G03D13/06

    CPC分类号： G03D3/06 ,  G03C1/36 ,  G03C5/26 ,  G03C5/261 ,  G03C5/264 ,  G03C5/383 ,  G03D13/06 ,  G03C1/0051 ,  G03C1/832 ,  G03C5/16

    摘要： Black-and-white elements, such as radiographic films, can be processed in roomlight because they include certain light absorbing dyes and desensitizers. Processing is carried out by processing the exposed element using a two-stage process in the same light-tight processing container. In the first stage, development is initiated with a developing composition having a pH of from about 10 to about 12.5, and comprising an appropriate black-and-white developing agent in a concentration of from about 0.1 to about 0.5 mol/l, and a sulfite at from about 0.25 to about 0.7 mol/l. After an appropriate time, a fixing agent (other than a sulfite) is introduced into the processing container to provide a combined developing/fixing compositions, and development and fixing are carried out simultaneously. The processing method is carried out quickly, usually within about 90 seconds, including a washing step at the end. The presence of sulfite and high pH in both stages decolorize or deactivate the particulate dyes.

    摘要翻译： 黑白元素，如放射照相胶片，可在室温下进行处理，因为它们包括某些光吸收染料和脱敏剂。 通过在相同的不透光处理容器中使用两阶段处理来处理暴露的元件来进行处理。 在第一阶段中，开发具有pH为约10至约12.5的显影组合物，并且包含浓度为约0.1至约0.5mol / l的合适的黑白显影剂，和 约0.25至约0.7mol / l的亚硫酸盐。 在适当的时间之后，将定影剂（亚硫酸盐除外）引入加工容器中以提供组合的显影/定影组合物，同时进行显影和定影。 处理方法通常在约90秒内快速进行，包括最后的洗涤步骤。 两相中亚硫酸盐和高pH值的存在使颗粒状染料脱色或失活。

    Direct positive type silver halide photographic material comprising a mixture of dyes
    6.
    发明授权
    Direct positive type silver halide photographic material comprising a mixture of dyes 失效
    包含染料混合物的直接正型卤化银照相材料

    公开(公告)号：US5547828A

    公开(公告)日：1996-08-20

    申请号：US373404

    申请日：1995-01-17

    申请人： Takanori Hioki ,  Toyohisa Oya ,  Shingo Nishiyama

    发明人： Takanori Hioki ,  Toyohisa Oya ,  Shingo Nishiyama

    IPC分类号： G03C1/485 ,  G03C1/36

    CPC分类号： G03C1/4853 ,  Y10S430/141

    摘要： A direct positive type silver halide photographic material is described, which contains at least one compound represented by the following formula (I) and at least one cyanine dye having a pyrazolo[5,1-b]quinazolone nucleus and a cyanine heterocycle nucleus, wherein a carbon atom at 3-position of the pyrazolo[5,1-b]quinazolone nucleus is bonded through a four-methine chain to an atom at the 2-position or 4-position of the cyanine heterocycle nucleus, provided that the 4-position is possible only when the cyanine heterocycle nucleus is a quinoline or pyridine nucleus: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents an alkyl group, an aryl group or a heterocyclic group, which may be substituted; V.sub.1, V.sub.2, V.sub.3, V.sub.4, V.sub.5, V.sub.6, V.sub.7 and V.sub.8 each represents a hydrogen atom or a monovalent substituent; L.sub.1, L.sub.2 and L.sub.3 each represents a substituted or unsubstituted methine group; M.sub.1 represents a charge-neutralizing counter ion; and m.sub.1 is a number of 0 or larger necessary for intramolecular charge neutralization.

    摘要翻译： 描述了直接正型卤化银照相材料，其包含至少一种由下式（I）表示的化合物和至少一种具有吡唑并[5,1-b]喹唑啉酮核和花青杂环核的花青染料，其中 吡唑并[5,1-b]喹唑啉酮核的3-位上的碳原子通过四次甲基链键合到花青杂环核的2-位或4-位的原子，条件是4- 位置可能只有当花青杂环核是喹啉或吡啶核时：其中R 1，R 2，R 3和R 4各自表示可以被取代的烷基，芳基或杂环基; V1，V2，V3，V4，V5，V6，V7和V8各自表示氢原子或一价取代基; L1，L2和L3各自表示取代或未取代的次甲基; M1表示电荷中和反离子; m1是分子内电荷中和所需的0以上的数。

    Water-soluble disulfides in silver halide emulsions
    7.
    发明授权
    Water-soluble disulfides in silver halide emulsions 失效
    卤化银乳剂中的水溶性二硫化物

    公开(公告)号：US5418127A

    公开(公告)日：1995-05-23

    申请号：US210826

    申请日：1994-03-18

    申请人： Jerzy A. Budz ,  George J. Burgmaier ,  Roger L. Klaus ,  Xin Wen

    发明人： Jerzy A. Budz ,  George J. Burgmaier ,  Roger L. Klaus ,  Xin Wen

    IPC分类号： C09B57/00 ,  C07C323/20 ,  C07C323/41 ,  G03C1/34 ,  G03C1/36 ,  G03C1/09

    CPC分类号： G03C1/346 ,  C07C323/20 ,  C07C323/41

    摘要： A disulfide compound represented by the following formula: ##STR1## wherein X is independently --O--, --NH-- or --NR--, where R is a substituent;m and r are independently 0, 1 or 2;M is --H or a cationic species;Ar is an aromatic group; andL is a linking group, where p is 0 or 1.A silver halide emulsion comprising said disulfide compounds and a photographic element comprising a silver halide emulsion in reactive association with said disulfide compounds and a method of making same.

    摘要翻译： 由下式表示的二硫化物：其中X独立地为-O - ， - NH-或-NR-，其中R为取代基; m和r独立地为0,1或2; M是-H或阳离子物质; Ar是芳族基团; 并且L是连接基团，其中p是0或1.包含所述二硫化物化合物的卤化银乳剂和包含与所述二硫化物化合物反应性缔合的卤化银乳剂的照相元件及其制备方法。

    Direct positive photographic light-sensitive material
    10.
    发明授权
    Direct positive photographic light-sensitive material 失效
    直接正拍摄感光材料

    公开(公告)号：US4966836A

    公开(公告)日：1990-10-30

    申请号：US278919

    申请日：1988-12-02

    申请人： Noriyuki Inoue ,  Shigeo Hirano ,  Tetsuo Kojima ,  Mitsuru Yamamoto

    发明人： Noriyuki Inoue ,  Shigeo Hirano ,  Tetsuo Kojima ,  Mitsuru Yamamoto

    IPC分类号： G03C1/36 ,  G03C1/485 ,  G03C7/30

    CPC分类号： G03C1/48546

    摘要： A direct positive photographic light-sensitive material comprising a support having thereon at least one internal latent image type silver halide emulsion layer not having been previously fogged, wherein the photographic light-sensitive material contains at least one nucleating agent represented by a specific formula and at least one nucleating accelerating agent selected from compounds represented by two specific formulae. The direct positive photographic light-sensitive material according to the present invention provides direct positive images having a high maximum image density and a low minimum image density, and is less susceptible to change in photographic properties such as reduction in the maximum image density and increase in the minimum image density when it is preserved under high temperature and/or high humidity conditions.