-
公开(公告)号：US5168035A
公开(公告)日：1992-12-01
申请号：US634449
申请日：1990-12-27
CPC分类号： G03C1/015 , G03C2001/03523 , G03C2001/03547 , G03C2001/03582
摘要： A method for controlling pressure-induced fog in a silver bromide photographic material involves surface treatment of the emulsion AgBr grains with thiocyanate and an iodide salt. In particular, a process for making a pressure fog-resistant photographic emulsion includes steps of forming a photographic emulsion containing cubic or cubooctahedral silver bromide grains, surface-treating the AgBr grains with a thiocyanate by adding the thiocyanate to the emulsion, chemically sensitizing the emulsion, maintaining the emulsion at a temperature and for a time sufficient to allow the thiocyanate to react with the grain surfaces, and then surface-treating the AgBr grains with an iodide salt by adding the salt to the emulsion in an amount and under conditions effective to fill in cubic faces of the AgBr grains. The latter step partially or fully converts the AgBr grains to octahedral grains. A photographic element can then be made by coating the emulsion on a suitable base.
摘要翻译： 在溴化银照相材料中控制压力引起的雾的方法包括用硫氰酸盐和碘化物盐对乳液AgBr颗粒进行表面处理。 特别地，制造耐压雾照相乳剂的方法包括形成含有立方或立方八面体溴化银颗粒的照相乳剂的步骤，用硫氰酸盐将硫氰酸盐加入到乳液中，对乳液进行表面处理，使乳液化学增感 将乳液保持在足以允许硫氰酸盐与颗粒表面反应的温度和时间，然后用碘盐将表面处理AgBr颗粒，通过向该乳液中加入一定量和在有效 填充AgBr颗粒的立方面。 后一步骤部分或全部将AgBr晶粒转化为八面体晶粒。 然后可以通过将乳液涂覆在合适的基底上来制备照相元件。
-
公开(公告)号：US5298384A
公开(公告)日：1994-03-29
申请号：US955345
申请日：1992-10-01
CPC分类号： G03C1/015 , G03C2001/03523 , G03C2001/03547 , G03C2001/03582
摘要： A method for controlling pressure-induced fog in a silver bromide photographic material involves surface treatment of the emulsion AgBr grains with thiocyanate and an iodide salt. In particular, a process for making a pressure fog-resistant photographic emulsion includes steps of forming a photographic emulsion containing cubic or cubooctahedral silver bromide grains, surface-treating the AgBr grains with a thiocyanate by adding the thiocyanate to the emulsion, chemically sensitizing the emulsion, maintaining the emulsion at a temperature and for a time sufficient to allow the thiocyanate to react with the grain surfaces, and then surface-treating the AgBr grains with an iodide salt by adding the salt to the emulsion in an amount and under conditions effective to fill in cubic faces of the AgBr grains. The latter step partially or fully converts the AgBr grains to octahedral grains. A photographic element can then be made by coating the emulsion on a suitable base.
摘要翻译： 在溴化银照相材料中控制压力引起的雾的方法包括用硫氰酸盐和碘化物盐对乳液AgBr颗粒进行表面处理。 特别地，制造耐压雾照相乳剂的方法包括形成含有立方或立方八面体溴化银颗粒的照相乳剂的步骤，用硫氰酸盐将硫氰酸盐加入到乳液中，对乳液进行表面处理，使乳液化学增感 将乳液保持在足以允许硫氰酸盐与颗粒表面反应的温度和时间，然后用碘盐将表面处理AgBr颗粒，通过向该乳液中加入一定量和在有效 填充AgBr颗粒的立方面。 后一步骤部分或全部将AgBr晶粒转化为八面体晶粒。 然后可以通过将乳液涂覆在合适的基底上来制备照相元件。
-
公开(公告)号：US06422736B1
公开(公告)日：2002-07-23
申请号：US09598573
申请日：2000-06-21
申请人： Michael G. Antoniades , Harold G. Judd , Katrin I. Parsiegla , Benjamin T. Chen , Douglas E. Singer , Donald R. Irwin , Sucheta Tandon , Jess B. Hendricks, III , Heinz E. Stapelfeldt
发明人： Michael G. Antoniades , Harold G. Judd , Katrin I. Parsiegla , Benjamin T. Chen , Douglas E. Singer , Donald R. Irwin , Sucheta Tandon , Jess B. Hendricks, III , Heinz E. Stapelfeldt
IPC分类号： B01F722
摘要： A mixer for preparing silver halide grains for photographic use has upper and lower impellers housed in a draft tube. The bottom impeller has flat blades for micromixing silver and halide reactants introduced into the bottom of the draft tube. The upper impeller has pitched blades for macromixing the bulk fluid. The impellers are spaced apart at least the distance of their diameters so that the upper and lower impellers operate independently of one another so that micromixing is independent of macromixing. A flow disrupter structurally associated with the draft tube and positioned above the top impeller prevents vortexing of the fluid during mixing. Baffles may be provided in the draft tube to discourage vortexing.
摘要翻译： 用于制备用于照相用途的卤化银颗粒的混合器具有容纳在引流管中的上部和下部叶轮。 底部叶轮具有用于将引入到引流管底部的银和卤化物反应物微混合的扁平叶片。 上部叶轮具有用于使体积流体大块混合的叶片。 叶轮至少间隔其直径的距离，使得上部和下部叶轮彼此独立地操作，使得微混合独立于大分子混合。 与引流管结构相关并位于顶部叶轮上方的流动扰流器防止混合过程中的流体涡流。 可以在引流管中设置挡板以阻止涡旋。
-
公开(公告)号：US5660974A
公开(公告)日：1997-08-26
申请号：US448075
申请日：1995-05-23
IPC分类号： G03C7/407 , C07C239/12 , C07C239/18 , G03C7/413
CPC分类号： C07C239/12 , C07C239/18 , G03C7/413 , G03C7/407
摘要： A composition for developing a silver halide color photographic material comprising a color developing agent and a hydroxylamine compound represented by Formula I or II: ##STR1## wherein Stab is a stabilizing group such that when the hydroxylamine compound is added to a test developer solution of the following formula the pH of the test developer solution decreases less than 0.12 at an aeration time of 90 hours: TABLE 1 ______________________________________ Developer Formulation Components Quantity/L ______________________________________ Lithium salt of sulfonated 0.25 mL Polystyrene (30% wt/wt Liq) Triethanolamine 11.0 mL Stilbene Stain-Reducing Agent 2.3 g Hydroxylamine compound 0.05 moles Lithium Sulfate 2.7 g 1-Hydroxyethylidene-1-diphosphonic 0.8 mL acid (60% wt/wt Liq) Potassium Chloride 1.8 g Potassium Bromide 0.2 g 4-amino-3-methyl-N-ethyl-N-(.beta.- 4.85 g methanesulfonamidoethyl)aniline (color developer) Potassium Carbonate 25.0 g Water to 1 L solution pH adjusted to 10.12 with KOH ______________________________________ and wherein R is a substituted or unsubstituted alkyl, aryl or heterocyclic group bonded to N by a carbon atom.
摘要翻译： 用于显影卤化银彩色照相材料的组合物，其包含彩色显影剂和由式I或II表示的羟胺化合物：其中Stab是稳定基团，使得当将羟胺化合物加入到 表1-显影剂配方 - 组分数量/ L - 磺化的锂盐0.25mL - 聚苯乙烯（30％wt /重量/体积比） 重量份Liq） - 三乙醇胺11.0mL - 二苯乙烯染色剂2.3g - 羟胺化合物0.05摩尔 - 硫酸锂2.7g-1-羟基亚乙基-1-二膦酸0.8mL-酸（60％wt / wt Liq） - 氯化钾1.8g - 溴化钾0.2g-4-氨基-3-甲基-N-乙基-N-（β-4.85g-甲磺酰氨基乙基）苯胺 - （显色剂） - 碳酸钾25.0g - 水至1L溶液 - pH调节至10.12 与KOH - 并且其中R为 被碳原子与N键合的取代或未取代的烷基，芳基或杂环基。
-
5.发明授权Use of 2,1-benzisoxazol-3(1H)-ones as antioxidants in color photographic processing methods 失效在彩色照相处理方法中使用2,1-苯并异恶唑-3（1H） - 酮作为抗氧化剂
公开(公告)号：US5554493A
公开(公告)日：1996-09-10
申请号：US553934
申请日：1995-11-06
申请人： Robert J. Perry , Carl A. Marrese , Sucheta Tandon
发明人： Robert J. Perry , Carl A. Marrese , Sucheta Tandon
摘要： Certain 2,1-benzisoxazol-3(1H)-ones are useful as antioxidants in photographic color developer compositions. These compounds are highly water soluble and are essentially odorless. In addition, they have extended shelf life. They are useful in processing silver halide color photographic elements having at least one incorporated dye forming coupler.
摘要翻译： 某些2,1-苯并异恶唑-3（1H）酮可用作照相彩色显影剂组合物中的抗氧化剂。 这些化合物是高度水溶性的，并且基本上无臭。 另外，它们延长了保质期。 它们可用于处理具有至少一种掺入染料形成成色剂的卤化银彩色照相元件。
-
-
-
-
搜索结果
5 条记录 (耗时 0.015 秒)
