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1.发明授权公开(公告)号：US06893809B2
公开(公告)日：2005-05-17
申请号：US10244569
申请日：2002-09-16
CPC分类号： G03C7/30541 , G03C1/0051 , G03C1/04 , G03C7/3022 , G03C7/3029 , G03C7/3041 , G03C7/30594 , G03C7/333 , G03C2007/3032 , G03C2007/3034 , G03C2200/38 , G03C2200/53 , Y10S430/156
摘要： This invention relates to a negative silver halide photographic element comprising a support and a silver halide imaging layer containing a light sensitive silver halide imaging emulsion, said silver halide imaging layer further comprising a separately precipitated non-imaging intentionally fogged fine grain emulsion and an electron transfer agent releasing compound represented by formula (I): CAR1-(L)n-ETA (I) wherein: CAR1 is a carrier moiety which is capable of releasing -(L)n-ETA on reaction with oxidized developing agent; L is a divalent linking group, n is 0, 1 or 2; and ETA is a releasable electron transfer agent, and (optionally) a development accelerator releasing compound represented by the formula (II): CAR2—(SAM)-NX1—NX2X3 (II) wherein: CAR2 is a carrier moiety which is capable of releasing —(SAM)-NX1—NX2X3 on reaction with oxidized developing agent; SAM is a silver absorbable moiety attached to the carrier moiety and is released on reaction with oxidized development agent; and —NX1—NX2X3 is a hydrazine group wherein X1, X2 and X3 are individually hydrogen or a substituent chosen from alkyl, aryl, carbonyl, or sulfonyl groups with the proviso that at least one of X1, X2 and X3 is hydrogen.
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公开(公告)号：US06756188B2
公开(公告)日：2004-06-29
申请号：US10244270
申请日：2002-09-16
申请人： John E. Keevert , Stephen P. Singer , Kenneth J. Reed , Kenneth J. Lushington , Mary C. Brick , James A. Friday
发明人： John E. Keevert , Stephen P. Singer , Kenneth J. Reed , Kenneth J. Lushington , Mary C. Brick , James A. Friday
IPC分类号： G03C746
CPC分类号： G03C7/30594 , G03C1/0051 , G03C1/04 , G03C7/3022 , G03C7/3029 , G03C7/30541 , G03C2007/3034 , Y10S430/156
摘要： This invention relates to a photographic element comprising a support and at least two silver halide emulsion layers further comprising, an electron transfer agent releasing compound represented by the formula (I): CAR1—(L)n—ETA (I) wherein: CAR1 is a carrier moiety which is capable of releasing —(L)n-ETA on reaction with oxidized developing agent; L is a divalent linking group, n is 0, 1 or 2; and ETA is a releasable 1-aryl-3-pyrazolidinone electron transfer agent having a calculated log partition coefficient (c log P) greater than or equal to 2.40 and the total sum of the Hammett sigma(para) values of the substituents on the 1-aryl ring is 0.51 or less, the ETA being bonded to L or CAR1 through either the nitrogen atom in the 2-position or the oxygen attached to the 3-position of the pyrazolidinone ring; and a development accelerator releasing compound represented by the formula (II): CAR2—(SAM)—NX1—NX2X3 (II) wherein: CAR2 is a carrier moiety which is capable of releasing —(SAM)—NX1—NX2X3 on reaction with oxidized developing agent; SAM is a silver absorbable moiety attached to the carrier moiety and is released on reaction with oxidized development agent; and —NX1—NX2X3 is a hydrazine group wherein X1, X2 and X3 are individually hydrogen or a substituent chosen from alkyl, aryl, carbonyl or sulfonyl groups with the proviso that at least one of X1, X2 and X3 is hydrogen.
摘要翻译： 本发明涉及一种照相元件，其中包含支持体和至少两个卤化银乳剂层，还包含由式（I）表示的电子转移剂释放化合物：其中：CAR 1是能够释放的载体部分 - （L）n-ETA与氧化显影剂反应; L为二价连接基团，n为0,1或2; 和ETA是具有大于或等于2.40的计算对数分配系数（c log P）的可释放的1-芳基-3-吡唑烷酮电子转移剂，并且1-位的取代基的哈米特σ（对）值的总和， 芳基环为0.51以下，ETA通过2位的氮原子或与吡唑烷酮环的3位相连的氧键连接至L或CAR 1;以及由吡唑烷酮环的3位表示的显影促进剂释放化合物 式（II）：其中：CAR 2是能够与氧化显影剂反应释放 - （SAM）-NX 1 -XX 2 X 3的载体部分; SAM是银 与载体部分连接的可吸收部分，与氧化显影剂反应释放; 和-X 1 -NX 2 X 3是其中X 1，X 2和X 3独立地为氢或选自烷基，芳基，羰基或磺酰基的取代基的肼基团 条件是X 1，X 2和X 3中的至少一个是氢。
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3.发明授权Silver halide elements containing solubilized antifoggants and low fogging tabular silver halide grains 失效含有溶解的防灰雾剂和低雾化的片状卤化银颗粒的卤化银元素公开(公告)号：US06518007B1
公开(公告)日：2003-02-11
申请号：US10014704
申请日：2001-12-11
IPC分类号： G03C134
CPC分类号： G03C1/346 , G03C1/0051 , G03C1/04 , G03C7/3022 , G03C7/39236 , G03C2001/03511 , G03C2200/44
摘要： This invention relates to a multicolor silver halide photographic element comprising a support and at least one high bromide silver halide emulsion layer comprising low fogging tabular silver halide grains, said element further comprising an antifoggant represented by the following Structure I: R1—SO2—C(R2)R3—(CO)m—(L)n—SG I wherein R1 is an aliphatic or cyclic group, R2 and R3 are independently hydrogen or bromine as long as at least one of them is bromine, L is a divalent linking group, m and n are independently 0 or 1, and SG is a solubilizing group that has a pKa of 8 or less.
摘要翻译： 本发明涉及一种多色卤化银照相元件，其包含支持体和至少一种包含低雾化片状卤化银颗粒的高溴化卤化银乳剂层，所述元件还包含由以下结构I表示的防灰雾剂：其中R1是脂族或 环状基，R2和R3独立地为氢或溴，只要其中至少一个为溴，L为二价连接基团，m和n分别为0或1，SG为pKa为8的增溶基团 或更少。
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公开(公告)号：US5037732A
公开(公告)日：1991-08-06
申请号：US399723
申请日：1989-08-28
摘要： Photographic silver halide emulsions are disclosed comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure internally containing a carbonyl coordination ligand and a transition metal chosen from groups 8 and 9 of the periodic table of elements.
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5.发明授权
公开(公告)号：US4981781A
公开(公告)日：1991-01-01
申请号：US406208
申请日：1989-08-28
摘要： Photographic silver halide emulsions are disclosed comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure internally containing oxo coordination ligands and a transition metal chosen from groups 6, 7, and 8 of the periodic table of elements.
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