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1. 发明授权

US5856080A Preparation and use of a dimethylamine silver chloride complex as a single source precursor for nucleation of silver chloride crystals 失效
标题翻译：制备和使用二甲胺氯化银络合物作为氯化银晶体成核的单一来源前体
公开(公告)号：US5856080A
公开(公告)日：1999-01-05
申请号：US866785
申请日：1997-05-30
申请人： Tommie L. Royster, Jr. , Seshadri Jagannathan , David G. Juhas , Heinz E. Stapelfeldt
发明人： Tommie L. Royster, Jr. , Seshadri Jagannathan , David G. Juhas , Heinz E. Stapelfeldt
IPC分类号： C01G5/00 , C07C209/68 , C07C211/65 , C07F1/00 , C07F1/10 , G03C1/015 , G03C1/035 , G03C1/005 , C01G5/02
CPC分类号： G03C1/015 , C07F1/005
摘要： A dimethylamine silver chloride complex is used as a single source precursor for nucleation of silver chloride crystals.
摘要翻译：使用二甲基胺氯化银络合物作为用于核化氯化银晶体的单一来源前体。

2. 发明授权

US06265145B1 Process for the preparation of high chloride emulsions containing iodide 失效
标题翻译：制备含有碘化物的高氯化物乳液的方法
公开(公告)号：US06265145B1
公开(公告)日：2001-07-24
申请号：US09475405
申请日：1999-12-30
申请人： Rajesh V. Mehta , Jerzy A. Budz , Jess B. Hendricks, III , Heinz E. Stapelfeldt , Seshadri Jagannathan , Ramesh Jagannathan
发明人： Rajesh V. Mehta , Jerzy A. Budz , Jess B. Hendricks, III , Heinz E. Stapelfeldt , Seshadri Jagannathan , Ramesh Jagannathan
IPC分类号： G03C1005
CPC分类号： G03C1/015 , G03C1/035 , G03C1/07 , G03C2001/03517 , G03C2200/01
摘要： A process for the preparation of a radiation-sensitive silver halide emulsion comprised of high chloride cubical silver halide grains containing from 0.05 to 3 mole percent iodide, based on total silver, where the iodide is incorporated in the grains in a controlled, non-uniform distribution forming a core containing at least 50 percent of total silver, an iodide free surface shell having a thickness of greater than 50 Å, and a sub-surface shell that contains a maximum iodide concentration is disclosed, the process comprising: (a) providing in a stirred reaction vessel a dispersing medium and host high chloride silver halide cubical grains comprising a speed enhancing amount of iodide, and (b) precipitating silver halide onto the host grains by introducing at least a silver salt solution into the dispersing medium at a rate such that the normalized molar addition rate, Rn, is above 3.0×10−2 min−1, Rn satisfying the formula: Rn=[Qf×Cf]/M where Qf is the volumetric rate of addition, in L/min, of silver salt solution into the reaction vessel; Cf is the concentration, in moles/L, of the silver salt solution; and M is total moles of silver halide in the host grains in the reaction vessel at the precise moment of addition of the silver salt solution. In a further aspect, this invention is directed towards a photographic recording element comprising a support and at least one light sensitive silver halide emulsion layer comprising silver halide grains prepared as described above. The advantages of the invention are generally accomplished in accordance with the discovery that when the exterior portion of profiled silver iodochloride grains are grown under specific conditions of high molar addition rates, iodochloride emulsions of enhanced sensitivity and photographic curve shape are produced, as speed can be increased while keeping fog to a low level.
摘要翻译：一种用于制备辐射敏感的卤化银乳剂的方法，其包含基于总银含有0.05至3摩尔％碘化物的高氯化物立方体卤化银颗粒，其中碘化物以受控的，不均匀的方式掺入颗粒中分布形成包含总银的至少50％，厚度大于Å的无碘化物表面壳和含有最大碘化物浓度的亚表面壳的芯，该方法包括：（a）提供在搅拌的反应容器中，分散介质和包含加速量的碘化物的高氯化物卤化银立方晶粒和（b）通过将至少一种银盐溶液以一定速率引入到分散介质中而将卤化银沉淀到主体颗粒上使得归一化的摩尔加成速率Rn高于3.0×10 -2分钟-1，Rn满足下式：其中Qf是硅的体积加入速率（L / min）将盐溶液加入到反应容器中; Cf是银盐溶液的浓度，以摩尔/ L表示; 并且M是在银盐溶液的添加的精确时刻反应容器中的主体颗粒中卤化银的总摩尔数。在另一方面，本发明涉及一种照相记录元件，其包括载体和包含如上所述制备的卤化银颗粒的至少一种感光卤化银乳剂层。本发明的优点通常根据以下发现来实现：当异氰酸银碘化银颗粒的外部部分在高摩尔添加速率的特定条件下生长时，产生增强灵敏度的碘氯化物乳剂和照相曲线形状，因为速度可以在将雾保持在低水平的同时增加。

3. 发明授权

US5523200A Fine grain bromide emulsions as carriers for photographically useful ingredients added during emulsion finishing 失效
标题翻译：细颗粒溴化钼乳液作为载体，用于在乳液整理过程中添加的照相有用成分
公开(公告)号：US5523200A
公开(公告)日：1996-06-04
申请号：US390450
申请日：1995-02-17
申请人： Paul T. Hahm , Walter H. Isaac , Heinz E. Stapelfeldt
发明人： Paul T. Hahm , Walter H. Isaac , Heinz E. Stapelfeldt
IPC分类号： G03C7/00 , G03C1/005 , G03C1/015 , G03C1/035 , G03C1/06 , G03C1/07 , G03C1/34
CPC分类号： G03C1/005 , G03C1/346 , G03C1/015 , G03C1/035 , Y10S430/132 , Y10S430/134 , Y10S430/149 , Y10S430/151
摘要： The invention generally relates to a method of silver halide grain finishing comprising providing a high chloride silver halide grain emulsion and adding a silver bromide fine grain Lippmann emulsion during the chemical sensitization heat cycle for each grain wherein said fine grain emulsion has a photographically useful compound adhered to said fine grain Lippmann emulsion.
摘要翻译：本发明一般涉及一种卤化银颗粒整理方法，其包括提供高氯化物卤化银颗粒乳剂，并且在每种晶粒的化学增感热循环期间加入溴化银细颗粒Lippmann乳液，其中所述细粒乳剂具有附着的照相有用化合物到所述的细颗粒Lippmann乳液。

4. 发明授权

US06422736B1 Scalable impeller apparatus for preparing silver halide grains 失效
标题翻译：用于制备卤化银颗粒的可扩展叶轮装置
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
CPC分类号： B01F7/168 , B01F7/22
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。

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