公开(公告)号：US5356764A

公开(公告)日：1994-10-18

申请号：US69236

申请日：1993-06-01

申请人： Richard P. Szajewski ,  Gary L. House ,  Thomas B. Brust ,  Debra L. Hartsell ,  Donald L. Black ,  Anne E. Bohan ,  James P. Merrill

发明人： Richard P. Szajewski ,  Gary L. House ,  Thomas B. Brust ,  Debra L. Hartsell ,  Donald L. Black ,  Anne E. Bohan ,  James P. Merrill

IPC分类号： G03C1/035 ,  G03C7/305

CPC分类号： G03C1/035 ,  G03C7/305 ,  Y10S430/156 ,  Y10S430/158

摘要： A color photographic element having a support bearing at least one radiation sensitive emulsion layer comprising dispersing medium and silver halide grains is disclosed. The emulsion layer is a tabular grain silver halide emulsion layer Wherein at least 50 percent of total grain projected area is accounted for by tabular grains (a) bounded by {100} major faces having adjacent edge ratios of less than 10, (b) each having an aspect ratio of at least 2, and (c) internally at their nucleation site, containing iodide and at least 50 mole percent chloride. The emulsion layer has in reactive association an image dye-forming compound and a compound that contains a photographically useful group and is capable of reacting with oxidized developing agent to thereby release such group. A process for preparing the radiation sensitive tabular grain silver halide emulsions is also described.

摘要翻译： 公开了一种具有支承轴承至少一个包含分散介质和卤化银颗粒的辐射敏感乳剂层的彩色照相元件。 乳剂层是片状颗粒卤化银乳剂层，其中总颗粒投影面积的至少50％由具有相邻边缘比率小于10的{100}主面界限的片状颗粒（a）占据，（b）每个 具有至少2的纵横比，和（c）在其成核位点内部含有碘化物和至少50摩尔％的氯化物。 乳剂层具有反应性缔合的成像染料化合物和含有照相用组的化合物，并能够与氧化显影剂反应，从而释放该基团。 还描述了制备辐射敏感片状粒状卤化银乳剂的方法。

公开(公告)号：US5320938A

公开(公告)日：1994-06-14

申请号：US112489

申请日：1993-08-25

申请人： Gary L. House ,  Thomas B. Brust ,  Debra L. Hartsell ,  Donald L. Black ,  Michael G. Antoniades ,  Jerzy A. Budz ,  Yun C. Chang ,  Roger Lok ,  Sherrill A. Puckett ,  Allen K. Tsaur

发明人： Gary L. House ,  Thomas B. Brust ,  Debra L. Hartsell ,  Donald L. Black ,  Michael G. Antoniades ,  Jerzy A. Budz ,  Yun C. Chang ,  Roger Lok ,  Sherrill A. Puckett ,  Allen K. Tsaur

IPC分类号： G03C1/005 ,  G03C1/047 ,  G03C1/07 ,  G03C1/16 ,  G03C1/18 ,  G03C1/015 ,  G03C1/09 ,  G03C1/34

CPC分类号： G03C1/0053 ,  G03C1/047 ,  G03C1/07 ,  G03C1/16 ,  G03C1/18 ,  G03C1/34 ,  G03C2001/0055 ,  G03C2001/0156 ,  G03C2001/03511 ,  G03C2001/03558 ,  G03C2001/03594 ,  G03C2001/094 ,  G03C2200/01 ,  G03C2200/33 ,  G03C2200/40 ,  G03C2200/59

摘要： Silver halide emulsions are disclosed in which at least 50 percent of total grain projected area is accounted for by tabular grains (1) bounded by {100} major faces having adjacent edge ratios of less than 10, (2) each having an aspect ratio of at least 2, and (3) internally at their nucleation site containing iodide and at least 50 mole percent chloride. The emulsions are prepared by a process comprised of the steps of (a) introducing silver and halide salts into a dispersing medium so that nucleation of the tabular grains occurs in the presence of iodide with chloride accounting for at least 50 mole percent of the halide present in the dispersing medium and the pCl of the dispersing medium being maintained in the range of from 0.5 to 3.5 and (b) following nucleation completing grain growth under conditions that maintain the {100} major faces of the tabular grains.

摘要翻译： 公开了卤化银乳剂，其中总颗粒投影面积的至少50％由具有相邻边缘比率小于10的{100}主面界定的片状颗粒（1）占据，（2）各自具有纵横比为 至少2和（3）内部在其含有碘化物和至少50摩尔％氯化物的成核位置。 通过以下步骤制备乳剂：（a）将银和卤化物盐引入分散介质中，使得在存在氯化物的碘化物存在下，片状颗粒的成核占至少50％的卤化物存在 在分散介质中，分散介质的pCl保持在0.5〜3.5的范围内，（b）在维持片状颗粒的{100}主面的条件下，成核后完成晶粒生长。

公开(公告)号：US6100019A

公开(公告)日：2000-08-08

申请号：US292436

申请日：1999-04-15

申请人： Thomas B. Brust ,  Philip J. Dale ,  Mark R. Mis ,  Donald L. Black

发明人： Thomas B. Brust ,  Philip J. Dale ,  Mark R. Mis ,  Donald L. Black

IPC分类号： G03C1/015 ,  G03C1/005 ,  G03C1/035 ,  G03C1/047

CPC分类号： G03C1/0051

摘要： A process is disclosed of conducting in a single reaction vessel selective site high chloride epitaxy deposition as a continuation of host high bromide {1111} tabular grain emulsion precipitation. A host tabular grain emulsion is precipitated accounting for 0.05 to 1.5 moles of silver per liter of dispersing medium. Any iodide at the major faces of the tabular grains is uniformly distributed and any iodide in a surface region of the grains amounts to less than 7 mole, based on silver in the surface region. Until epitaxy is formed, pH is held in the range of 3 to 8. Gelatino-peptizer in an amount of 1 to 40 grams per Ag mole is added to the emulsion. Chloride ion in a range of from 0.03 to 0.15 mole per liter is dispersed in the emulsion. pBr is held in the range of from 3.0 to 3.8 until epitaxy is formed. Iodide ion in a concentration of from 5.times.10.sup.-6 to 1.times.10.sup.-4 mole per square meter of grain surface area is uniformly adsorbed to the major surfaces of the tabular grains.

摘要翻译： 公开了在单个反应容器选择性位置进行高氯化物外延沉积作为主体高溴酸盐（1111）片状颗粒乳液沉淀的延续的方法。 沉淀出主体片状颗粒乳剂，每升分散介质为0.05至1.5摩尔的银。 在片状颗粒的主面上的任何碘化物均匀分布，并且基于表面区域中的银，颗粒的表面区域中的任何碘化物均小于7摩尔。 直到形成外延，pH值保持在3至8的范围内。每摩尔Ag摩尔量为1至40克的明胶胶溶剂加到乳液中。 在0.03至0.15摩尔/升范围内的氯离子分散在乳液中。 pBr保持在3.0至3.8的范围内，直到形成外延。 浓度为5×10-6至1×10-4摩尔每平方米晶粒表面积的碘离子均匀地吸附到片状颗粒的主表面。

公开(公告)号：US5976778A

公开(公告)日：1999-11-02

申请号：US179700

申请日：1998-10-27

申请人： Thomas B. Brust ,  Mark R. Mis ,  David H. Levy ,  Donald L. Black

发明人： Thomas B. Brust ,  Mark R. Mis ,  David H. Levy ,  Donald L. Black

IPC分类号： G03C1/015 ,  G03C1/035 ,  G03C1/043 ,  G03C1/047

CPC分类号： G03C1/035 ,  G03C1/015 ,  G03C1/043 ,  G03C1/047

摘要： A process of preparing a radiation-sensitive silver halide emulsion is disclosed in which the silver halide grains form dispersed clumps. A population of fine silver halide grains is precipitated at higher concentrations than previously taught for preparing this type of an emulsion by employing a peptizer limited in amount, limited in methionine content, or both. Following formation of the grains, they are aggregated into clumps by the addition of a surfactant, optionally assisted by the adding iodide, increasing pH or both. The grain clumps are stabilized against further aggregation by adding a high methionine peptizer and optionally assisted by the precipitation of additional silver halide.

摘要翻译： 公开了制备辐射敏感卤化银乳剂的方法，其中卤化银颗粒形成分散的团块。 通过使用受限于蛋氨酸含量限制的胶溶剂或两者，使用比以前通过制备这种类型的乳液所教导的浓度更高的浓度的细卤化银颗粒群沉淀。 在形成颗粒后，通过加入表面活性剂将它们聚集成团，任选地通过加入碘化物，增加pH或两者来辅助。 通过添加高甲硫氨酸胶溶剂并任选通过沉淀额外的卤化银来帮助颗粒团稳定，防止进一步聚集。

公开(公告)号：US07183024B2

公开(公告)日：2007-02-27

申请号：US10460129

申请日：2003-06-12

申请人： Michael R. Roberts ,  Paul B. Gilman ,  Donald L. Black ,  Kurt M. Schroeder

发明人： Michael R. Roberts ,  Paul B. Gilman ,  Donald L. Black ,  Kurt M. Schroeder

IPC分类号： G03C5/16 ,  G03C11/00

CPC分类号： G03C1/49881 ,  G03C1/0051 ,  G03C1/49809 ,  G03C1/49818 ,  G03C1/49845 ,  G03C5/16 ,  G03C2005/168 ,  Y10S430/156 ,  Y10S430/158 ,  Y10S430/165 ,  Y10S430/167

摘要： The present invention is directed to a method of forming a positive image in a photothermographic element comprising a potentially negative-working emulsion wherein fog density development is imagewise inhibited in exposed areas of the image upon thermal development. In one embodiment of the invention, a density-inhibiting agent is released during thermal development which agent inhibits the thermal development of unexposed silver salts in the exposed areas relative to the unexposed areas. The method preferably comprises imagewise exposing the film with a non-solarizing amount of radiation/energy to form a latent image and thermally developing the latent image in a single development step to produce a positive image in the element. The present invention is also directed to a photothermographic element that can be used in the present process in which a positive image characterized by high speed and discrimination is formed when exposed and thermally heated above 150° C.

摘要翻译： 本发明涉及在光热敏成像元件中形成正像的方法，该光热敏成像元件包括潜在的负性乳液，其中在热显影时图像的暴露区域中的雾密度显影成像抑制。 在本发明的一个实施方案中，在热显影期间释放密度抑制剂，其中该试剂抑制相对于未曝光区域的曝光区域中未曝光的银盐的热显影。 该方法优选地包括以非日化量的辐射/能量成像曝光所述膜以形成潜像并在单个显影步骤中热显影所述潜像，以在所述元件中产生正像。 本发明还涉及一种光热敏成像元件，其可用于本发明的曝光和热加热至150℃以上形成以高速和鉴别为特征的正像。

公开(公告)号：US06265962B1

公开(公告)日：2001-07-24

申请号：US09608340

申请日：2000-06-29

申请人： Donald L. Black ,  Dale Yones

发明人： Donald L. Black ,  Dale Yones

IPC分类号： H04Q522

CPC分类号： G06K7/10039 ,  G06K7/0008

摘要： Communications between an RFID interrogator and an RFID transponder require that no more than one transponder be present in the reading range of the interrogator and transmitting into motion at any given time. If multiple transponders are in the field, then a collision between the return signals of the transponders occurs, rendering the signals unreadable. A method to resolve the collisions and allow for accurate transmission of each transponder's data is given. This method is especially effective over other methods when the transponder is a read-only type of device, whereby there is no communications interrogator on board the read-only transponder.

摘要翻译： RFID询问器和RFID应答器之间的通信要求在询问器的读取范围内不超过一个应答器，并在任何给定的时间发送运动。 如果多个应答器在现场，则发生应答器的返回信号之间的冲突，使得信号不可读。 给出了一种解决冲突并允许准确传输每个应答器数据的方法。 当应答器是只读类型的设备时，该方法对于其他方法是特别有效的，由此在只读应答器上没有通信询问器。

公开(公告)号：US5582965A

公开(公告)日：1996-12-10

申请号：US451881

申请日：1995-05-26

申请人： Joseph C. Deaton ,  Richard L. Daubendiek ,  Donald L. Black ,  Timothy R. Gersey ,  Joseph G. Lighthouse ,  Myra T. Olm ,  Xin Wen ,  Robert D. Wilson

发明人： Joseph C. Deaton ,  Richard L. Daubendiek ,  Donald L. Black ,  Timothy R. Gersey ,  Joseph G. Lighthouse ,  Myra T. Olm ,  Xin Wen ,  Robert D. Wilson

IPC分类号： G03C1/005 ,  G03C1/08 ,  G03C1/46 ,  G03C1/035

CPC分类号： G03C1/0051 ,  G03C1/08 ,  G03C1/46

摘要： A chemically and spectrally sensitized ultrathin tabular grain emulsion is disclosed including tabular grains (a) having {111} major faces, (b) containing greater than 70 mole percent bromide and at least 0.25 mole percent iodide, based on silver, (c) accounting for greater than 90 percent of total grain projected area, (d) exhibiting an average equivalent circular diameter of at least 0.7 .mu.m, and (e) exhibiting an average thickness of less than 0.07 .mu.m.It has been observed that faster rates of development, relatively thinner tabular grains under comparable conditions of preparation, increased contrast and improvements in speed-granularity relationships can be realized when (1) the tabular grains contain less than 10 mole percent iodide and (2) the surface chemical sensitization sites include epitaxially deposited silver halide protrusions of a face centered cubic crystal lattice structure of the rock salt type forming epitaxial junctions with the tabular grains, the protrusions (a) being restricted to those portions of the tabular grains located nearest peripheral edges of and accounting for less than 50 percent of the {111} major faces of the tabular grains, (b) containing a silver chloride concentration at least 10 mole percent higher than that of the tabular grains, and (c) including a higher iodide concentration than those portions of the tabular grains extending between the {111} major faces and forming epitaxial junctions with the protrusions.A photographic element is disclosed in which an ultrathin tabular grain emulsion as described above is coated over an emulsion layer intended to record visible light.

摘要翻译： 公开了一种化学和光谱增感的超薄片状颗粒乳液，其包括具有{111}主面的片状颗粒（a），（b）含有大于70摩尔百分比的溴和至少0.25摩尔百分数的碘，基于银，（c） 占总颗粒投影面积的90％以上，（d）平均当量圆直径至少为0.7μm，（e）平均厚度小于0.07μm。 已经观察到，当（1）片状颗粒含有小于10摩尔％的碘化物时，可以实现更快的发展速度，相当的制备条件下相对较薄的片状颗粒增加对比度和速度 - 粒度关系的改善，（2） 表面化学增感部位包括与片状晶粒形成外延结的岩盐型的面心立方晶格结构的外延沉积的卤化银突起，突起（a）限于位于最近周边边缘的片状颗粒的那些部分 占片状颗粒{111}主面的不到50％，（b）含有比片状颗粒高至少10摩尔％的氯化银浓度，（c）包含较高的碘化物浓度 比在{111}主面之间延伸并形成外延结的片状颗粒的那些部分 突起。 公开了一种照相材料，其中将如上所述的超薄片状颗粒乳剂涂覆在旨在记录可见光的乳剂层上。

公开(公告)号：US5219720A

公开(公告)日：1993-06-15

申请号：US792119

申请日：1991-11-14

申请人： Donald L. Black ,  Robert D. Wilson

发明人： Donald L. Black ,  Robert D. Wilson

IPC分类号： G03C1/005 ,  G03C1/18

CPC分类号： G03C1/0051 ,  G03C1/18

摘要： The invention is generally accomplished by providing a tabular-grain silver halide emulsion in which at least 50 percent of the total grain projected area is accounted for by tabular grains having a mean diameter of at least 0.6 micrometer and a spacing between at least two parallel twin planes of less than about 0.011 micrometer. In a preferred form, at least 90 percent of the total grain projected area is accounted for by the tabular grains of the invention having a mean diameter of at least 0.6 micrometer and a spacing between at least two parallel twin planes of less than 0.012 micrometer.

摘要翻译： 本发明通常通过提供一种片状粒状卤化银乳剂来实现，其中总颗粒投影面积的至少50％由具有至少0.6微米的平均直径和至少两个平行双峰之间的间隔的片状颗粒 平面小于约0.011微米。 在优选形式中，总颗粒投影面积的至少90％是由平均直径至少为0.6微米的平板状颗粒和小于0.012微米的至少两个平行双面之间的间隔来计算的。

公开(公告)号：US5614358A

公开(公告)日：1997-03-25

申请号：US441489

申请日：1995-05-15

申请人： Robert D. Wilson ,  Myra T. Olm ,  Richard L. Daubendiek ,  Donald L. Black ,  Joseph C. Deaton ,  Timothy R. Gersey ,  Joseph G. Lighthouse ,  Xin Wen

发明人： Robert D. Wilson ,  Myra T. Olm ,  Richard L. Daubendiek ,  Donald L. Black ,  Joseph C. Deaton ,  Timothy R. Gersey ,  Joseph G. Lighthouse ,  Xin Wen

IPC分类号： G03C1/005 ,  G03C1/08 ,  G03C1/46 ,  G03C1/09 ,  G03C1/035

CPC分类号： G03C1/08 ,  G03C1/0051 ,  G03C1/46

摘要： A chemically and spectrally sensitized ultrathin tabular grain emulsion is disclosed including tabular grains (a) having {111} major faces, (b) containing greater than 70 mole percent bromide, based on silver, (c) accounting for greater than 90 percent of total grain projected area, (d) exhibiting an average equivalent circular diameter of at least 0.7 .mu.m, and (e) exhibiting an average thickness of less than 0.07 .mu.m.It has been observed that increased speed and contrast as well as improvements in speed-granularity relationships can be realized when the surface chemical sensitization sites include epitaxially deposited silver halide protrusions forming epitaxial junctions with the tabular grains, the protrusions (a) being located on up to 50 percent of the surface area of the tabular grains, (b) having a higher overall solubility than at least that portion of the tabular grains forming epitaxial junctions with the protrusions, and (c) forming a face centered cubic crystal lattice.In further improving photographic performance by incorporating a photographically useful dopants, it has been observed that iridium placed in the ultrathin tabular grains and a shallow electron trapping site providing dopant placed in the silver halide protrusions can together increase photographic speed and reduce high intensity reciprocity failure.

摘要翻译： 公开了化学和光谱增感的超薄片状颗粒乳剂，其包括具有{111}主面的片状颗粒（a），（b）基于银含有大于70摩尔％的溴化物，（c）占总量的90％以上 （d）平均当量圆直径至少为0.7μm，（e）平均厚度小于0.07μm。 已经观察到，当表面化学增感部位包括形成与片状颗粒的外延结的外延淀积的卤化银突起时，可以实现速度和对比度的提高以及速度 - 粒度关系的改善，突起（a）位于上面 至（b）具有比至少部分片状颗粒形成与突起外延结合的整体溶解度更好的表面积，（c）形成面心立方晶格。 通过掺入摄影有用的掺杂剂来进一步提高照相性能，已经观察到放置在超薄片状晶粒中的铱和提供放置在卤化银突起中的掺杂物的浅电子俘获位置可以一起增加照相速度并降低高强度互易失效。

公开(公告)号：US5567580A

公开(公告)日：1996-10-22

申请号：US536898

申请日：1995-09-29

申请人： David E. Fenton ,  Lucius S. Fox ,  Donald L. Black

发明人： David E. Fenton ,  Lucius S. Fox ,  Donald L. Black

IPC分类号： G03C1/035 ,  G03C1/00 ,  G03C1/005 ,  G03C1/07 ,  G03C1/12 ,  G03C1/18 ,  G03C1/46 ,  G03C5/17

CPC分类号： G03C1/46 ,  G03C1/0051 ,  G03C1/07 ,  G03C1/12 ,  G03C5/17 ,  G03C1/18 ,  Y10S430/167

摘要： A radiographic element for medical diagnostic imaging is disclosed comprised of a transparent support and first and second silver halide emulsion layer units coated on opposite sides of the film support, each emulsion layer unit being comprised of a silver iodohalide tabular grain emulsion containing less than 5 mole percent iodide, based on silver. An improvement in speed in relation to granularity is obtained by the presence of tabular grains having {111} major faces, containing a maximum surface iodide concentration along their edges, and a lower iodide concentration within their corners than elsewhere along their edges.

摘要翻译： 公开了用于医​​学诊断成像的射线照相元件，其包括透明支撑体和涂覆在膜支撑体的相对侧上的第一和第二卤化银乳剂层单元，每个乳剂层单元由含有少于5摩尔的碘代碘酸银片状颗粒乳剂 基于银的碘化物百分比。 通过存在具有{111}主面，沿其边缘含有最大表面碘化物浓度的片状颗粒的存在，以及在它们的边缘内的其他角落内的较低的碘化物浓度，沿着其边缘的存在获得了与颗粒度相关的速度的改善。