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    • 1. 发明授权
    • High bromide cubic grain emulsions
    • 高溴化物立方颗粒乳剂
    • US06727055B1
    • 2004-04-27
    • US10299475
    • 2002-11-19
    • Anthony AdinRichard E. BealAnthony D. GingelloStephen A. HersheyJohn D. MeeMyra T. Olm
    • Anthony AdinRichard E. BealAnthony D. GingelloStephen A. HersheyJohn D. MeeMyra T. Olm
    • G03C1005
    • G03C1/08G03C1/035G03C2001/03511G03C2001/03535G03C2001/03541G03C2001/03594
    • A radiation-sensitive emulsion is disclosed comprised of cubic silver iodochlorobromide grains comprising 0.25 to about 1.5 mol % iodide, 1 to about 25 mol % chloride, and from about 73.5 to 98.75 mol % bromide, each based on total silver in the emulsion, wherein the grains have an average equivalent circular diameter of greater than 0.6 micrometers and contain from 10−7 to 10−3 mole per silver mole of a metal ion coordination complex dopant of Formula (I) in an internal region of the grains formed after 10 percent and before 95 percent of the total grain silver has been precipitated: [ML6]n  (I) 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 at 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. Doping of relatively large grain silver iodochlorobromide cubic grain emulsions in accordance with the invention provides optimized speed, contrast and low intensity efficiency.
    • 公开了一种辐射敏感性乳剂,其包含基于乳液中总银的0.25-约1.5mol%碘化物,1至约25mol%氯化物和约73.5-98.75mol%溴化物的立方氯碘氯溴化物颗粒,其中 晶粒的平均当量圆直径大于0.6微米,并且在每个银摩尔的式(I)的金属离子配位络合物掺杂剂的晶粒的内部区域中含有10 -7至10 -3摩尔 在10%之后形成,并且总颗粒银的95%已经沉淀出来:其中n为0,-1,-2,-3或-4,M为除铱之外的填充的边界轨道多价金属离子,L6 表示可以独立选择的桥连配体,条件是至少四个配体是阴离子配体,并且至少一个配体是氰基配体或比氰基配体更具有负电性的配体。 相对较大的根据本发明的碘代氯溴化钾立方晶粒状乳剂的掺杂提供优化的速度,对比度和低强度效率。
    • 3. 发明授权
    • Photographic element
    • 摄影元素
    • US06312884B1
    • 2001-11-06
    • US09533573
    • 2000-03-23
    • Steven G. LinkJohn D. Mee
    • Steven G. LinkJohn D. Mee
    • G03C114
    • G03C1/14
    • This invention comprises a photographic element comprising a light sensitive silver halide emulsion layer which contains a sensitizing dye of the formula: wherein: n is 0 or 1; X, Y, and Z are independently O, N, S, Se, or C; X′ is O, NR13, S, or Se; R1 and R2 are acid substituted alkyl; R4 is H or alkyl, with the proviso that if X′ is N, R4 is H; each of R6, R7, R8 and R9 is independently H or a substituent or R7 and R8 or R8 and R9 together with the carbon atoms to which they are attached form a 5-membered or 6-membered ring; when X or Y or Z is O, N, S or Se then a, b or c, respectively, is 0 and when X or Y or Z is C, a, b or c, respectively is 1 and the corresponding R10, R11, or R12 substituent is independently H or a non-aromatic substituent; and R13 is alkyl or substituted alkyl.
    • 本发明包括一种含有感光卤化银乳剂层的照相元件,其含有下式的增感染料:其中:n为0或1; X,Y和Z独立地为O,N,S,Se或C; X'是O,NR 13,S或Se; R 1和R 2是酸取代的烷基; R 4是H或烷基,条件是如果X'是N,则R4是H; R6,R7,R8和R9各自是 独立地是H或取代基,或者R 7和R 8或R 8和R 9与它们所连接的碳原子一起形成5元或6元环;当X或Y或Z为O,N,S或Se时, ,b或c分别为0,当X或Y或Z为C时,a,b或c分别为1,相应的R10,R11或R12取代基独立为H或非芳香族取代基; 和R 13是烷基或取代的烷基。
    • 9. 发明授权
    • Photographic elements with tetra-nuclear merocyanine sensitizers
    • 摄影元素与四核花菁敏化剂
    • US5563021A
    • 1996-10-08
    • US479581
    • 1995-06-07
    • Julia PichJohn M. HigginsJohn D. Mee
    • Julia PichJohn M. HigginsJohn D. Mee
    • G03C5/29A01M31/00G03C1/06G03C1/22G03C1/26G03C1/295G03C1/08
    • G03C1/26A01M31/002G03C1/061
    • A photographic element comprising a light sensitive silver halide emulsion sensitized with a dye of formula (I) and a nucleating agent or amine booster associated with the silver halide emulsion: ##STR1## wherein: R.sub.3 is an alkyl group, alkenyl group, or aryl groupR.sub.4 and R.sub.5 are each hydrogen, an alkyl group, alkenyl or aryl group;R.sub.6, R.sub.7 and R.sub.8 are, independently, an alkyl group, alkenyl group, aryl group, or H;the dye has at least three acid or acid salt substituents; andeach L independently represents a methine group;p is 0 or 1;Z.sub.1 represents the atoms necessary to complete a 5- or 6-membered heterocyclic ring group;(X).sub.n represents counterions as needed to balance the charge on the molecule.The present invention also provides a process for forming a high contrast photographic image on a photographic element having a light sensitive silver halide emulsion sensitized with a dye of formula (I). The process comprises developing such a photographic element in the presence of a hydrazine compound and an amine booster.
    • 包含用式(I)的染料敏化的感光卤化银乳剂和与卤化银乳剂相关的成核剂或胺促进剂的照相元件:其中:R 3是烷基,烯基, 或芳基R 4和R 5各自为氢,烷基,烯基或芳基; R6,R7和R8独立地为烷基,烯基,芳基或H; 该染料具有至少三个酸或酸盐取代基; 并且每个L独立地表示次甲基; p为0或1; Z1表示完成5-或6-元杂环基团所必需的原子; (X)n表示在分子上平衡电荷所需的抗衡离子。 本发明还提供了在具有用式(I)的染料敏化的感光卤化银乳剂的照相材料上形成高对比度摄影图像的方法。 该方法包括在肼化合物和胺助剂的存在下开发这种照相元件。