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1. 发明授权

US06228573B1 Process for the preparation of high bromide ultrathin tabular grain emulsions 失效
标题翻译：高溴化超薄片状颗粒乳剂的制备方法
公开(公告)号：US06228573B1
公开(公告)日：2001-05-08
申请号：US09464468
申请日：1999-12-15
申请人： John E. Keevert, Jr. , Joe E. Maskasky , Michael G. Antoniades
发明人： John E. Keevert, Jr. , Joe E. Maskasky , Michael G. Antoniades
IPC分类号： G03C1005
CPC分类号： G03C1/07 , G03C1/0051 , G03C2001/03594 , G03C2200/03 , G03C2200/43
摘要： A process for preparing an ultrathin high bromide {111} tabular grain silver halide emulsion in a reaction vessel comprising the steps of (a) forming in the presence of a dispersing medium a population of silver halide grain nuclei containing twin planes, and (b) growing the silver halide grain nuclei containing twin planes to form high bromide {111} tabular silver halide grains by the addition of silver and halide ions, WHEREIN the majority of the silver added during growth step (b) is added at a pBr of less than 2.6 and in the presence of a triaminopyrimidine grain growth modifier containing mutually independent 4, 5 and 6 ring position amino substituents, the 4 and 6 ring position substituents being hydroamino substituents. High bromide ultrathin {111} tabular grain emulsions prepared by the process of the invention provide thinner tabular grains than that obtained in the absence of the triaminopyrimidine grain growth modifier. Additionally, the double jet process of the invention is highly controllable and commercially scalable.
摘要翻译：一种在反应容器中制备超薄高溴酸盐{111}片状粒状卤化银乳剂的方法，包括以下步骤：（a）在分散介质存在下形成含有双面平面的卤化银颗粒核团，和（b）生长含有双平面的卤化银颗粒核，通过加入银和卤离子形成高溴化物{111}片状卤化银颗粒，因为在生长步骤（b）中加入的大多数银以小于等于 2.6和在含有相互独立的4,5和6个环位氨基取代基的三氨基嘧啶晶粒生长调节剂存在下，4和6环位置取代基是氢氨基取代基。通过本发明的方法制备的高溴化超薄{111}片状颗粒乳剂提供比不存在三氨基嘧啶晶粒生长调节剂时更薄的片状颗粒。此外，本发明的双喷射方法是高度可控的和商业上可扩展的。

2. 发明授权

US5037732A Photographic emulsions containing internally modified silver halide grains 失效
公开(公告)号：US5037732A
公开(公告)日：1991-08-06
申请号：US399723
申请日：1989-08-28
申请人： Woodrow G. McDugle , Alfred P. Marchetti , John E. Keevert , Marian S. Henry , Myra T. Olm
发明人： Woodrow G. McDugle , Alfred P. Marchetti , John E. Keevert , Marian S. Henry , Myra T. Olm
IPC分类号： G03C1/035 , G03C1/07 , G03C1/08 , G03C1/09
CPC分类号： G03C1/08 , G03C1/035 , G03C1/09
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.

3. 发明授权

US4945035A Photographic emulsions containing internally modified silver halide grains 失效
公开(公告)号：US4945035A
公开(公告)日：1990-07-31
申请号：US179377
申请日：1988-04-08
申请人： John E. Keevert, Jr. , Woodrow G. McDugle , Raymond S. Eachus
发明人： John E. Keevert, Jr. , Woodrow G. McDugle , Raymond S. Eachus
IPC分类号： G03C1/035 , G03C1/015 , G03C1/06 , G03C1/09
CPC分类号： G03C1/09 , G03C1/015
摘要： Photographic silver halide emulsions are disclosed comprised of radiation sensitive silver halide grains containing greater than 50 mole percent chloride and less than 5 mole percent iodide, based on total silver, with any residual halide being bromide, said grains exhibiting a face centered cubic crystal lattice structure formed in the presence of a hexacoordination complex of rhenium, ruthenium, or osmium with at least four cyanide ligands. The emulsions exhibit increased sensitivity.

4. 发明授权

US06518007B1 Silver halide elements containing solubilized antifoggants and low fogging tabular silver halide grains 失效
标题翻译：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
申请人： Kenneth J. Reed , George J. Burgmaier , John E. Keevert , Roger L. Klaus
发明人： Kenneth J. Reed , George J. Burgmaier , John E. Keevert , Roger L. Klaus
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。

5. 发明授权

US5412075A Control of methionine content in photographic grade gelatin 失效
标题翻译：摄影级明胶中甲硫氨酸含量的控制
公开(公告)号：US5412075A
公开(公告)日：1995-05-02
申请号：US227171
申请日：1994-04-13
申请人： Donald P. Wrathall , John E. Keevert, Jr. , Gregg C. Hider , John S. Brand
发明人： Donald P. Wrathall , John E. Keevert, Jr. , Gregg C. Hider , John S. Brand
IPC分类号： C07K14/78 , G03C1/047 , C07K4/12
CPC分类号： C07K14/78 , G03C1/047 , Y10S530/84
摘要： The method for preparing high grade gelatin with a specific methionine content and with reduced methionine variability from batch to batch and within a single extraction includes controlling the amount of and variability of oxidant present during processing of bone stock into gelatin. Such controls include control of oxidant concentration and range in process water, control of volume of process water used in gelatin-making process and restriction of the range of gelatin extracts used in the product gelatin. Once the aim level of oxidant has been set, the total range of oxidant around the set point should be less than 220 meq per 100 kg dry bone.
摘要翻译：用于制备具有特定甲硫氨酸含量并且具有降低的甲硫氨酸变异性的批次和单次提取的高级明胶的方法包括控制在将骨料加工成明胶期间存在的氧化剂的量和变异性。这样的控制包括控制氧化剂浓度和工艺水中的范围，控制明胶生产过程中使用的工艺水的体积以及限制产品明胶中使用的明胶提取物的范围。一旦设定了氧化剂的目标水平，设定点周围的氧化剂的总范围应小于每100 kg干骨中的220meq。

6. 发明授权

US06893809B2 Silver halide photographic element containing fogged emulsions for accelerated development 失效
公开(公告)号：US06893809B2
公开(公告)日：2005-05-17
申请号：US10244569
申请日：2002-09-16
申请人： Kenneth J. Reed , James A. Friday , John E. Keevert , Stephen P. Singer , Mary C. Brick
发明人： Kenneth J. Reed , James A. Friday , John E. Keevert , Stephen P. Singer , Mary C. Brick
IPC分类号： G03C1/035 , G03C1/04 , G03C1/43 , G03C7/00 , G03C7/30 , G03C7/305 , G03C7/333 , G03C1/46
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.

7. 发明授权

US5385819A Preparation of thin tabular grain silver halide emulsions using synthetic polymeric peptizers 失效
标题翻译：使用合成聚合物胶溶剂制备薄的片状银卤化银乳剂
公开(公告)号：US5385819A
公开(公告)日：1995-01-31
申请号：US171588
申请日：1993-12-22
申请人： Wayne A. Bowman , Roger A. Weiss , Gerald W. Klein , John E. Keevert, Jr. , Shane C. Weber
发明人： Wayne A. Bowman , Roger A. Weiss , Gerald W. Klein , John E. Keevert, Jr. , Shane C. Weber
IPC分类号： G03C1/015 , G03C1/005 , G03C1/035 , G03C1/047 , G03C1/053 , G03C1/07 , G03C1/04
CPC分类号： G03C1/053 , G03C1/0051
摘要： A process for preparing a thin tabular grain silver halide emulsion comprised of silver halide grains which have a halide content of at least 50 mole percent bromide, wherein tabular grains of less than 0.15 micrometers in thickness and having an aspect ratio of greater than 8 account for greater than 50 percent of the total grain projected area, comprises the steps of nucleating the silver halide grains with a gelatino-peptizer or with the use of certain synthetic polymers that serve as effective nucleation peptizers and then growing the silver halide grains with the use of either a gelatino-peptizer or certain synthetic polymers that serve as effective growth peptizers.
摘要翻译：一种制备由卤化银颗粒组成的薄片状颗粒卤化银乳剂的方法，该卤化银颗粒的卤化物含量至少为50％（摩尔）溴化物，其中厚度小于0.15微米，长宽比大于8的片状颗粒占据占总颗粒投影面积的大于50％的步骤包括用明胶胶溶剂将卤化银颗粒成核的步骤或使用某些合成聚合物作为有效的成核胶溶剂，然后使用用作有效成长胶溶剂的明胶胶溶剂或某些合成聚合物。

8. 发明授权

US4933272A Photographic emulsions containing internally modified silver halide grains 失效
公开(公告)号：US4933272A
公开(公告)日：1990-06-12
申请号：US179376
申请日：1988-04-08
申请人： Woodrow G McDugle , Anthony D. Gingello , John A. Haefner , John E. Keevert, Jr. , Alfred P. Marchetti
发明人： Woodrow G McDugle , Anthony D. Gingello , John A. Haefner , John E. Keevert, Jr. , Alfred P. Marchetti
IPC分类号： G03C1/035 , G03C1/015 , G03C1/06 , G03C1/09 , G03C1/485
CPC分类号： G03C1/015 , G03C1/09 , G03C1/48523
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 nitrosyl or thionitrosyl coordination ligand and a transition metal chosen from groups 5 to 10 inclusive of the periodic table of elements.

9. 发明授权

US06756188B2 Photographic recording material for accelerated development 失效
标题翻译：用于加速发展的摄影记录材料
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。

10. 发明授权

US06656674B2 Ultrathin tabular grain silver halide emulsion with improved performance in multilayer photographic element 失效
标题翻译：具有改善多层照相元件性能的超薄片状银卤化银乳剂
公开(公告)号：US06656674B2
公开(公告)日：2003-12-02
申请号：US10027300
申请日：2001-12-21
申请人： Tommie L. Royster, Jr. , John E. Keevert, Jr. , Sharon G. Johnston , Donald L. Black , David W. Sandford
发明人： Tommie L. Royster, Jr. , John E. Keevert, Jr. , Sharon G. Johnston , Donald L. Black , David W. Sandford
IPC分类号： G03C1005
CPC分类号： G03C1/0051 , G03C2001/03511 , G03C2001/03552 , G03C2001/03564 , G03C2200/03
摘要： A photographic element which comprises a support bearing: (i) a first radiation-sensitive silver halide emulsion image-forming layer comprising a high bromide tabular grain emulsion including tabular grains having {111} major faces, exhibiting an average thickness of at least 0.07 &mgr;m and an average aspect ratio of at least 2; and (ii) a second radiation-sensitive silver halide emulsion image-forming layer comprising an ultrathin tabular grain emulsion including tabular grains having {111} major faces, containing greater than 70 mole percent bromide and at least 0.25 mole percent iodide, exhibiting an average thickness of less than 0.07 &mgr;m and an average equivalent circular diameter of at least 0.7 &mgr;m, and having latent image forming chemical sensitization sites on the surfaces of the tabular grains; wherein the surface chemical sensitization sites include epitaxially deposited silver halide protrusions containing an actual chloride concentration of from 20-50 mole %, based on epitaxially deposited silver, the chloride concentration being at least 10 mole percent higher than that of the tabular grains, and containing an actual iodide concentration of from 1 to 7 mole %, based on epitaxially deposited silver.
摘要翻译：一种照相元件，其特征在于，包括一支承体：（i）第一辐射敏感的卤化银乳剂图像形成层，其包含高溴化物片状颗粒乳剂，其包含具有{111}主面的平片状颗粒，平均厚度至少为0.07μm 平均纵横比至少为2; 和（ii）包含超薄片状颗粒乳剂的第二种辐射敏感的卤化银乳剂图像形成层，其包括具有{111}主面的片状颗粒，其含有大于70摩尔％的溴化物和至少0.25摩尔％的碘化物，厚度小于0.07μm，平均当量圆直径至少为0.7μm，并且在片状颗粒的表面上具有潜像形成的化学敏化位点; 其中所述表面化学增感部位包括外延沉积的银离子突出物，所述外延沉积的卤化银突起物以外延沉积的银为基准，其实际氯化物浓度为20-50摩尔％，氯化物浓度比片状颗粒高至少10摩尔％，并含有实际的碘化物浓度为1至7摩尔％，基于外延沉积的银。

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