Core/shell emulsions with enhanced photographic response
    1.
    发明授权
    Core/shell emulsions with enhanced photographic response 有权
    核/壳乳液具有改进的感光性能

    公开(公告)号:EP1111450B1

    公开(公告)日:2005-03-30

    申请号:EP00204393.3

    申请日:2000-12-08

    IPC分类号: G03C1/10 G03C1/12 G03C1/035

    摘要: A silver halide photographic element comprises at least one silver halide emulsion layer comprising a silver halide emulsion comprising core/shell silver halide grains wherein the core region comprises silver bromide with from about 5 to about 20% silver iodide and the shell region comprises silver bromide with about 0.1 to about 10% silver iodide and said layer contains a fragmentable electron donor compound of the formula X-Y' or a compound which contains a moiety of the formula -X-Y'; wherein X is an electron donor moiety, Y' is a leaving proton H or a leaving group Y, with the proviso that if Y' is a proton, a base, beta , is covalently linked directly or indirectly to X, and wherein: 1) X-Y' has an oxidation potential between 0 and about 1.4 V; and 2) the oxidized form of X-Y' undergoes a bond cleavage reaction to give the radical X and the leaving fragment Y'; and, optionally, 3) the radical X has an oxidation potential ≤-0.7V.an

    ASYMMETRIC CYANINE DYE
    2.
    发明公开
    ASYMMETRIC CYANINE DYE 审中-公开
    不对称菁

    公开(公告)号:EP1437386A4

    公开(公告)日:2005-01-26

    申请号:EP02800265

    申请日:2002-09-27

    发明人: KAWAKAMI MASAYUKI

    摘要: A compound represented by the general formula I R1, R2, R4, and R5 each represents alkyl or aryl, or R1 and R2 and/or R4 and R5 may be bonded to each other to form a ring R3 represents hydrogen or sulfo R6, R7, R8, and R9 each represents hydrogen, halogeno, alkyl, alkoxy, amino, nitro, or cyano X1 and X2 each represents alkyl or aryl m1 to m3 each is 0 or 1 L1 to L7 each represents methine, provided that when two or more of the methines each has a substituent, then the substituents may be bonded to each other to form a ring M represents hydrogen, a metal, or a quaternary ammonium salt and n is an integer of 1 to 7 necessary for charge neutralization or a salt of the compound. They are usable as a novel cyanine dye useful as an infrared-sensitive dye which exerts no adverse influence on the photographic properties of a photographic emulsion and is reduced in residual color after development.

    Photographic element with excellent speed differential for digital and optical exposure devices
    3.
    发明授权
    Photographic element with excellent speed differential for digital and optical exposure devices 有权
    与数字和光学曝光装置极好的灵敏度差的照相元件

    公开(公告)号:EP1094363B1

    公开(公告)日:2004-04-07

    申请号:EP00203506.1

    申请日:2000-10-10

    摘要: An imaging element comprising at least one silver halide emulsion wherein the silver halide emulsion grains incorporate dopant (i) which comprises a hexacoordination metal complex which satisfies the formula ÄML6Ü wherein n is zero, -1, -2, -3 or -4; M is a filled frontier orbital polyvalent metal ion, other than iridium; and L6 represents bridging ligands which can be independently selected, provided that least four of the ligands are anionic ligands, and at least one of the ligands is a cyano ligand or a ligand more electronegative than a cyano ligand; and wherein the emulsion has been spectrally sensitized with a sensitizing dye and contains a filter dye that (a) has a wavelength of absorbance maximum which is less than about 15 nm different than the maximum wavelength of emulsion sensitivity provided by the spectral sensitizing dye, and (b) has a half band width that is approximately equal to the half bandwidth of the sensitizing dye, thereby resulting in an emulsion which has a sensitivity at a wavelength of about 50 nm shorter than the maximum wavelength of sensitization which is about 65% or greater of the emulsion speed at the maximum wavelength of spectral sensitivity.

    Radiographic UV/Blue intensifying screen-film combination
    6.
    发明授权
    Radiographic UV/Blue intensifying screen-film combination 失效
    放射线UV /蓝增感屏和膜的组合

    公开(公告)号:EP0890873B1

    公开(公告)日:2003-10-15

    申请号:EP98202000.0

    申请日:1998-06-12

    申请人: AGFA-GEVAERT

    IPC分类号: G03C1/005 G03C1/12 G03C5/17

    摘要: A radiographic screen/film combination or system has been provided comprising a duplitized film sandwiched between a pair of supporting or self-supporting X-ray intensifying screens, characterized in that i) said pair of supported or self-supporting X-ray intensifying screens essentially consists of luminescent phosphor particles emitting at least 50 % and more preferably at least 80 % of their emitted radiation in the wavelength range shorter than 380 nm, as e.g. a niobium and gadolinium doped, monoclinic M, yttriumtantalate (MYT) phosphor corresponding to formula I YTaO4:Gd:Nb ii) said film comprises (1111 tabular silver halide grains rich in silver chloride, spectrally sensitive to irradiation in the said wavelength range shorter than 380 nm by the presence of at least one azacyanine dye as a spectral sensitizer.

    Imaging materials containing benzothiazine dyes
    7.
    发明公开
    Imaging materials containing benzothiazine dyes 审中-公开
    Bildaufzeichnungsmaterial beinhaltend Benzothiazinfarbstoffe

    公开(公告)号:EP1335243A1

    公开(公告)日:2003-08-13

    申请号:EP03075266.1

    申请日:2003-01-27

    IPC分类号: G03C1/12

    CPC分类号: G03C1/832

    摘要: This invention relates to an imaging element comprising a dye represented by Formulae II and IIA below:
    wherein;
       R 1 represents a hydrogen, an aryl group containing 6 to 14 carbon atoms, or an alkyl group containing 1 to 12 carbon atoms;
       R 2 and R 3 together form an aromatic carbocyclic or heterocyclic ring system containing 6 to 14 atoms;
       X represents a sulfoxidc (S=O), sulfone (SO 2 ), carbonyl (C=O) or dicyanovinyl (C(CN) 2 ) group, and Y represents a sulfoxide (S=O), sulfone (SO 2 ), carbonyl (C=O) or dicyanovinyl (C(CN) 2 ) group, with the proviso that X and Y cannot both be carbonyl;
       L 1 , L 2 , and L 3 represent methine groups, wherein the methine groups may combine to form a 5- or 6-membered ring when m is equal to or >1;
       m is 0, 1, 2, or 3;
       W is an aryl group; and
       D is a moiety in conjugation with the X and Y groups.

    摘要翻译: 本发明涉及一种成像元件,其包含由下式II和IIA表示的染料:其中:R 1表示氢,含有6至14个碳原子的芳基或含有1至12个碳原子的烷基; R 2和R 3一起 形成含有6至14个原子的芳族碳环或杂环系; X表示亚砜(S = O),砜(SO 2),羰基(C = O)或二氰基乙烯基(C(CN)2)基团,Y表示 亚砜(S = O),砜(SO2),羰基(C = O)或二氰基乙烯基(C(CN)2)),条件是X和Y不能都是羰基; L1,L2和L3代表次甲基 其中当m等于或> 1时,次甲基可以结合形成5-元环或六元环; m为0,1,2或3; W为芳基; 且D是与X和Y基团共轭的部分。

    Process for the preparation of concentrated dye-water compositions
    8.
    发明公开
    Process for the preparation of concentrated dye-water compositions 审中-公开
    维尔法赫伦·赫尔斯特隆·冯·孔森特里滕·法布斯托夫/瓦西·祖萨森采宗

    公开(公告)号:EP1335002A1

    公开(公告)日:2003-08-13

    申请号:EP03075135.8

    申请日:2003-01-16

    IPC分类号: C09B67/00 G03C1/005 G03C1/12

    摘要: A process for preparing a concentrated photographic spectral sensitizing dye-water composition which comprises adding an anionic sensitizing dye to an aqueous medium in the substantial absence of organic solvent, and agitating the combined dye and aqueous medium, wherein the anionic dye forms a liquid-crystalline dye phase in the aqueous medium and the agitation is performed in the presence of a nonionic surfactant having an HLB of less than 12 and an aqueous solubility at 25°C of greater than 10 ppm, which nonionic surfactant is in the aqueous medium at a level of from 10 to 1000 ppm. In a specific embodiment of the invention, where the viscosity (at 0.1 s -1 shear rate) of the dye-water composition in the absence of the nonionic surfactant would be greater than 100 cp and especially where such viscosity would be greater than 500 cp, the surfactant is preferably present at a level sufficient to substantially reduce air entrainment during agitation of the dye-water composition.

    摘要翻译: 一种制备浓缩的照相光谱增感染料 - 水组合物的方法,其包括在基本上不存在有机溶剂的情况下向阴离子增感染料添加阴离子敏化染料,并搅拌组合的染料和水性介质,其中阴离子染料形成液晶 在水性介质中的染料相和在HLB小于12的非离子表面活性剂和25℃下的水溶性大于10ppm的情况下进行搅拌,该非离子表面活性剂在水介质中的水平 为10〜1000ppm。 在本发明的一个具体实施方案中,当不存在非离子表面活性剂时,染料 - 水组合物的粘度(0.1s -1剪切速率)将大于100cp,特别是在这种粘度将大于 500cp,表面活性剂优选以足以在搅拌染料 - 水组合物期间基本上减少空气夹带的水平存在。

    Silver halide photographic light-sensitive material
    9.
    发明公开
    Silver halide photographic light-sensitive material 审中-公开
    卤化银照相感光材料

    公开(公告)号:EP1315031A2

    公开(公告)日:2003-05-28

    申请号:EP02026468.5

    申请日:2002-11-27

    摘要: Disclosed is a silver halide photographic light-sensitive material comprising at least one silver halide emulsion layer on a support, wherein 40 mol % or more of silver halide contained in the silver halide emulsion layer is silver bromide and the silver halide contains 1 × 10 -6 mole or more per mole of silver of a metal complex containing one or more cyanide ligands, and the silver halide photographic light-sensitive material has a characteristic curve drawn in orthogonal coordinates of logarithm of light exposure (x-axis) and optical density (y-axis) using equal unit lengths for the both axes, on which gamma is 4.0 or more for the optical density range of 0.1-1.5. There is provided a silver halide photographic light-sensitive material showing high contrast and high sensitivity.

    摘要翻译: 本发明公开了一种卤化银照相感光材料,其包含在载体上的至少一个卤化银乳剂层,其中卤化银乳剂层中所含的卤化银的40mol%或更多是溴化银,并且卤化银含有1×10- 每摩尔含有一个或多个氰化物配体的金属配合物的银6摩尔或更多,并且该卤化银照相感光材料具有以光照对数(x轴)和光密度( y轴),对于两个轴使用相等的单位长度,对于0.1-1.5的光密度范围,γ在4.0或更大。 提供了显示高对比度和高灵敏度的卤化银照相感光材料。

    Photographic element with excellent speed differential for digital and optical exposure devices
    10.
    发明公开
    Photographic element with excellent speed differential for digital and optical exposure devices 有权
    与数字和光学曝光装置极好的灵敏度差的照相元件

    公开(公告)号:EP1094363A3

    公开(公告)日:2002-07-24

    申请号:EP00203506.1

    申请日:2000-10-10

    摘要: An imaging element comprising at least one silver halide emulsion wherein the silver halide emulsion grains incorporate dopant (i) which comprises a hexacoordination metal complex which satisfies the formula[ML 6 ] n wherein n is zero, -1, -2, -3 or -4; M is a filled frontier orbital polyvalent metal ion, other than iridium; and L6 represents bridging ligands which can be independently selected, provided that least four of the ligands are anionic ligands, and at least one of the ligands is a cyano ligand or a ligand more electronegative than a cyano ligand; and wherein the emulsion has been spectrally sensitized with a sensitizing dye and contains a filter dye that(a) has a wavelength of absorbance maximum which is less than about 15 nm different than the maximum wavelength of emulsion sensitivity provided by the spectral sensitizing dye, and(b) has a half band width that is approximately equal to the half bandwidth of the sensitizing dye, thereby resulting in an emulsion which has a sensitivity at a wavelength of about 50 nm shorter than the maximum wavelength of sensitization which is about 65% or greater of the emulsion speed at the maximum wavelength of spectral sensitivity.