专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US06383730B1 Preparation of high chloride photographic emulsions with starch peptizer 失效
标题翻译：用淀粉胶溶剂制备高氯化物照相乳剂
公开(公告)号：US06383730B1
公开(公告)日：2002-05-07
申请号：US09731454
申请日：2000-12-07
申请人： Joe E. Maskasky , Victor P. Scaccia
发明人： Joe E. Maskasky , Victor P. Scaccia
IPC分类号： G03C1035
CPC分类号： G03C1/04 , G03C1/0053 , G03C1/015 , G03C1/035 , G03C1/07 , G03C2001/03517 , G03C2001/03535 , G03C2200/01 , G03C2200/43 , G03C2200/44
摘要： A process for precipitating a high chloride silver halide emulsion in an aqueous medium is disclosed comprising growing nucleated silver halide grains in a reaction vessel in the presence of a peptizer comprising a water dispersable starch to form high chloride radiation-sensitive silver halide grains, wherein the majority of grain growth in the reaction vessel is performed at a pH of less than 3.5. Growth of high chloride silver halide emulsion grains in the presence of a starch peptizer at low pH in accordance with the invention results in emulsion grains with lower fog, even in the absence of the use of strong oxidizing agents and antifoggants during grain precipitation.
摘要翻译：公开了一种在水性介质中沉淀高氯化卤化银乳剂的方法，其包括在包含水分散性淀粉的胶溶剂存在下在反应容器中生长有核的卤化银颗粒以形成高氯化物辐射敏感的卤化银颗粒，其中反应容器中的大部分晶粒生长在小于3.5的pH下进行。根据本发明，在低pH下的淀粉胶溶剂存在下，高氯化物卤化银乳剂颗粒的生长即使在颗粒沉淀期间不使用强氧化剂和防灰雾剂也会导致具有较低雾度的乳液颗粒。

22. 发明授权

US06225036B1 Color photographic element containing a fragmentable electron donor in combination with a one equivalent coupler and starch peptized tabular emulsion for improved photographic response 失效
标题翻译：含有可裂解的电子给体的彩色照相元件与一个等效的成色剂和淀粉胶溶片状乳液组合，用于改善照相反应
公开(公告)号：US06225036B1
公开(公告)日：2001-05-01
申请号：US09533732
申请日：2000-03-23
申请人： Joe E. Maskasky , Kenneth J. Reed , Victor P. Scaccia , James A. Friday
发明人： Joe E. Maskasky , Kenneth J. Reed , Victor P. Scaccia , James A. Friday
IPC分类号： G03C146
CPC分类号： G03C1/12 , G03C1/0051 , G03C1/04 , G03C1/10 , G03C7/3022 , G03C7/305 , G03C7/30547 , G03C2200/24 , Y10S430/156
摘要： A multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said emulsion layers comprises tabular grains having {111} major faces containing greater than 50 mole percent bromide, and accounting for greater than 50 percent total grain projected area precipitated in a peptizer that is a water dispersible cationic starch, and contains a fragmentable electron donating sensitizer.
摘要翻译：一种多色照相元件，其特征在于，包含支持青色染料成像单元的载体，所述载体包括至少一种与其相关联的至少一种形成青色染料的成色剂的红色感光卤化银乳剂层，品红色染料影像形成单元包括至少一种绿色具有与至少一种品红色染料形成成色剂相关联的感光卤化银乳剂层，黄色染料成像单元，其包含至少一种感蓝卤化银乳剂层，其具有至少一种形成黄色染料的成色剂，其中在所述乳剂层中的至少一个包括具有含有大于50摩尔百分比溴化物的{111}主面的片状颗粒，并且在作为水分散性阳离子淀粉的胶溶剂中沉淀的总颗粒投影面积大于50％，并且含有可分散的给电子敏化剂。

23. 发明授权

US06187525B1 Color photographic elements of increased sensitivity containing one equivalent coupler 失效
标题翻译：含有一个等效耦合器的灵敏度增加的彩色照相元件
公开(公告)号：US06187525B1
公开(公告)日：2001-02-13
申请号：US09213766
申请日：1998-12-17
申请人： Joe E. Maskasky , Kenneth J. Reed , Victor P. Scaccia , James A. Friday
发明人： Joe E. Maskasky , Kenneth J. Reed , Victor P. Scaccia , James A. Friday
IPC分类号： G03C108
CPC分类号： G03C1/04 , G03C1/0051 , G03C1/10 , G03C1/12 , G03C7/3022 , G03C2200/24 , Y10S430/159
摘要： A photographic recording element is disclosed containing in at least one dye image forming layer unit (a) a radiation-sensitive silver halide grains include tabular grains (1) having {111} major faces, (2) containing greater than 50 mole percent bromide, based on silver, and (3) accounting for greater than 50 percent total grain projected area, (b) a fragmentable electron donating sensitizer, (c) a water dispersible cationic starch peptizer, and (d) a one equivalent dye image providing coupler. Increased photographic speed is realized.
摘要翻译：公开了一种照相记录元件，其包含至少一个染料成像层单元（a），辐射敏感卤化银颗粒包括具有{111}主面的片状颗粒（1），（2）含有大于50摩尔百分比的溴化物，（3）占总投影面积的50％以上，（b）可分散的给电子增感剂，（c）水分散性阳离子淀粉胶溶剂，（d）一个等效的染料影像提供成色剂。实现摄影速度的提高。

24. 发明授权

US5879874A Process of preparing high chloride {100} tabular grain emulsions 失效
标题翻译：制备高氯化物{100}片状颗粒乳剂的方法
公开(公告)号：US5879874A
公开(公告)日：1999-03-09
申请号：US961962
申请日：1997-10-31
申请人： Joe E. Maskasky , Victor P. Scaccia , Samuel Chen
发明人： Joe E. Maskasky , Victor P. Scaccia , Samuel Chen
IPC分类号： G03C1/015 , G03C1/005 , G03C1/035
CPC分类号： G03C1/0053
摘要： A process is disclosed for preparing high chloride {100} tabular grain emulsions containing crystal lattice dislocations in peripheral regions of the tabular grains. In the initial step of the process a radiation-sensitive high chloride {100} tabular grain emulsion is produced to provide host grains. Lateral growth lateral growth of the {100} major surfaces of the tabular grains is extended by precipitating a high chloride peripheral region onto the host tabular grains. After the host grains have been provided an iodide ion source compound with a maximum second order reaction rate constant within the dispersing medium of less than 1.times.10.sup.3 mole.sup.-1 sec.sup.-1 is introduced into the host emulsion to release iodide ions for incorporation into the tabular grains at their peripheral edges by chloride ion displacement. In the resulting emulsion 10 or more crystal lattice dislocations extending inwardly from the peripheral edges of the {100} tabular grains are observed. The dislocations in the peripheral and, particularly, corner regions of the tabular grains increase their sensitivity.
摘要翻译：公开了一种用于制备在片状颗粒的周边区域中含有晶格位错的高氯化物{100}片状颗粒乳剂的方法。在该方法的初始步骤中，产生辐射敏感的高氯酸盐{100}片状颗粒乳剂以提供主体颗粒。片状颗粒的{100}主表面的横向生长横向生长通过将高氯化物周边区域沉淀到主体平片状晶粒上而延长。在提供主体颗粒之后，将在分散介质中具有小于1×10 3摩尔-1秒-1的最大二级反应速率常数的碘离子源化合物引入主体乳液中以释放碘离子以掺入片状颗粒在其外围边缘被氯离子置换。在所得到的乳液中观察到从{100}片状颗粒的周缘向内延伸的10个或更多个晶格位错。周边的，特别是片状晶粒的角落区域中的位错增加了它们的灵敏度。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式