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公开(公告)号：US5491052A
公开(公告)日：1996-02-13
申请号：US477723
申请日：1995-06-07
CPC分类号： G03C7/3882 , G03C1/38 , G03C2200/48 , Y10S430/136
摘要： It has been discovered that when polyalkylene oxide compounds or block polymeric or block oligomeric surface active compounds comprising at least a polyoxypropylene (POP) block and a polyoxyethylene (POE) block are added to conventional dispersions of yellow couplers (that is dispersions in which the dispersed particles have a particle size of 0.1 to 0.6 .mu.m), such dispersions in a coated silver halide photographic element produce substantially higher dye yield compared to the conventional dispersion without any additive. Further, the yellow dye formed from such dispersions containing the addenda of this invention are substantially more light stable compared to dispersions that does not contain such addenda.The invention is carried out just by adding required amounts of the said polyoxyethylene (POE)--polyoxypropylene (POP) compound to a preformed milled coupler dispersion prior to coating the photographic element.
摘要翻译： 已经发现，当将至少包含聚氧丙烯（POP）嵌段和聚氧乙烯（POE）嵌段的聚环氧烷化合物或嵌段聚合或嵌段低聚表面活性化合物加入到黄色成色剂的常规分散体中时（即其中分散的 颗粒具有0.1至0.6μm的粒度），与没有任何添加剂的常规分散体相比，在涂覆的卤化银照相元件中的这种分散体产生显着更高的染料产率。 此外，由含有本发明添加剂的这种分散体形成的黄色染料与不含这种添加剂的分散体相比，显着更稳定。 本发明仅在涂布照相元件之前，将所需量的所述聚氧乙烯（POE） - 聚氧丙烯（POP）化合物添加到预先形成的研磨的偶联剂分散体中进行。
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2.发明授权High dye stability, high activity, low stain and low viscosity small particle yellow dispersion melt for color paper and other photographic systems 失效高染料稳定性，高活性，低污染和低粘度小颗粒黄色分散体，用于彩色纸等摄影系统
公开(公告)号：US5591568A
公开(公告)日：1997-01-07
申请号：US301745
申请日：1994-09-06
申请人： Pranab Bagchi , James L. Edwards , Danuta Gibson , Thomas A. Rosiek , Brian Thomas , Vincent J. Flow, III
发明人： Pranab Bagchi , James L. Edwards , Danuta Gibson , Thomas A. Rosiek , Brian Thomas , Vincent J. Flow, III
CPC分类号： G03C1/38 , G03C7/388 , G03C2200/20 , Y10S430/136 , Y10S516/03 , Y10S516/06
摘要： This invention provides composition and method to overcome the very high viscosity of prior small-particle dispersions when admixed with gelatin in aqueous solution for coating a photographic film element.The invention is generally accomplished by the utilization of a second surfactant in the melt formulated by the admixture of the small-particle dispersion and the gelatin solution. The surfactants of this invention, that is, utilized to control the rheology of such said melts, have the following general structure: ##STR1## wherein n=5 to 20 andx=1 to 4.
摘要翻译： 本发明提供了组合物和方法，以克服在用于涂布照相胶片元件的水溶液中与明胶混合时先前的小颗粒分散体的非常高的粘度。 本发明通常通过在通过小颗粒分散体和明胶溶液的混合物配制的熔体中利用第二表面活性剂来实现。 本发明的表面活性剂，即用于控制所述熔体的流变性，具有以下通用结构：图像（SI-1）<图像>
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3.发明授权High dye stability, high activity, low stain and low viscosity small particle yellow dispersion melt for color paper and other photographic systems 失效高染料稳定性，高活性，低污染和低粘度小颗粒黄色分散体，用于彩色纸等摄影系统
公开(公告)号：US5358831A
公开(公告)日：1994-10-25
申请号：US627154
申请日：1990-12-13
申请人： Pranab Bagchi , James L. Edwards , Danuta Gibson , Thomas A. Rosiek , Brian Thomas , Vincent J. Flow, III
发明人： Pranab Bagchi , James L. Edwards , Danuta Gibson , Thomas A. Rosiek , Brian Thomas , Vincent J. Flow, III
CPC分类号： G03C1/38 , G03C7/388 , G03C2200/20 , Y10S430/136 , Y10S516/03 , Y10S516/06
摘要： This invention provides composition and method to overcome the very high viscosity of prior small-particle dispersions when admixed with gelatin in aqueous solution for coating a photographic film element.The invention is generally accomplished by the utilization of a second surfactant in the melt formulated by the admixture of the small-particle dispersion and the gelatin solution. The surfactants of this invention, that is, utilized to control the theology of such said melts, have the following general structure: ##STR1## wherein n=5 to 20 andx=1 to 4.
摘要翻译： 本发明提供了组合物和方法，以克服在用于涂布照相胶片元件的水溶液中与明胶混合时先前的小颗粒分散体的非常高的粘度。 本发明通常通过在通过小颗粒分散体和明胶溶液的混合物配制的熔体中利用第二表面活性剂来实现。 本发明的表面活性剂，即用于控制所述熔体的神学具有以下通用结构：图像（SI-1）<图像>
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4.发明授权Oxygen barrier coated photographic coupler dispersion particles for enhanced dye-stability 失效用于增强染色稳定性的氧气屏障涂层摄影偶联剂颗粒
公开(公告)号：US5185230A
公开(公告)日：1993-02-09
申请号：US753527
申请日：1991-09-03
CPC分类号： G03C1/002 , G03C7/396 , Y10S430/11
摘要： The invention creates a selective oxygen barrier around individual coupler or other photographically active particles by surrounding each particle with a layer of water applicable oxygen barrier polymer such as polyvinyl alcohol (PVA), which will also act as a steric barrier to coalescence of the particles. Photographic products formed with such materials are more dye stable.
摘要翻译： 本发明通过用一层适用的氧阻隔聚合物如聚乙烯醇（PVA）包围每个颗粒，在单个成色剂或其它照相活性颗粒周围产生选择性氧气屏障，聚乙烯醇（PVA）也将作为颗粒聚结的空间屏障。 用这种材料形成的摄影产品更稳定染料。
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5.发明授权Oxygen barrier coated photographic coupler dispersion particles for enhanced dye-stability 失效用于增强染料稳定性的隔氧涂层照相胶料分散体颗粒
公开(公告)号：US5366842A
公开(公告)日：1994-11-22
申请号：US96085
申请日：1993-07-23
CPC分类号： G03C1/002 , G03C7/396 , Y10S430/11
摘要： The invention creates a selective oxygen barrier around individual coupler or other photographically active particles by surrounding each particle with a layer of water applicable oxygen barrier polymer such as polyvinyl alcohol (PVA), which will also act as a steric barrier to coalescence of the particles. Photographic products formed with such materials are more dye stable.
摘要翻译： 本发明通过用一层适用的氧阻隔聚合物如聚乙烯醇（PVA）包围每个颗粒，在单个成色剂或其它照相活性颗粒周围产生选择性氧气屏障，聚乙烯醇（PVA）也将作为颗粒聚结的空间屏障。 用这种材料形成的摄影产品更稳定染料。
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公开(公告)号：US5279931A
公开(公告)日：1994-01-18
申请号：US692408
申请日：1991-04-26
申请人： Pranab Bagchi , Steven J. Sargeant , James T. Beck , Brian Thomas
发明人： Pranab Bagchi , Steven J. Sargeant , James T. Beck , Brian Thomas
CPC分类号： G03C7/388 , Y10S516/01
摘要： This invention describes a process of coprecipitating a photographic material such as a dye-forming coupler inside a base ionizable polymeric particle. Preparation of such a dispersion is performed by providing a first flow comprising a solution of a surfactant in water containing a polymer ionizable by base, providing a second flow comprising a water miscible solvent, base, water, and the photographic material, then mixing the said first and said second flow and immediately neutralizing the mixed flow to precipitate the photographic material inside the polymer particles forming a fine particle colloidal dispersion of the photographic material. The polymer dispersions of the invention are characterized by high photographic activity and high dye-stability in some cases.
摘要翻译： 本发明描述了在基底可电离的聚合物颗粒内共沉淀诸如染料形成成色剂的照相材料的方法。 通过提供包含表面活性剂在含有可由碱离子化的聚合物的水中的溶液提供第一流，提供包含水混溶性溶剂，碱，水和照相材料的第二流，然后将所述 第一和所述第二流动并立即中和混合流以沉积形成照相材料的细颗粒胶体分散体的聚合物颗粒内的照相材料。 在一些情况下，本发明的聚合物分散体的特征在于高照相活性和高染料稳定性。
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7.发明授权Oxygen barrier coated photographic coupler dispersion particles for enhanced dye-stability 失效用于增强染料稳定性的隔氧涂层照相胶料分散体颗粒
公开(公告)号：US5264317A
公开(公告)日：1993-11-23
申请号：US974768
申请日：1992-11-12
CPC分类号： G03C7/396 , G03C1/002 , Y10S430/11
摘要： The invention creates a selective oxygen barrier around individual coupler or other photographically active particles by surrounding each particle with a layer of water applicable oxygen barrier polymer such as polyvinyl alcohol (PVA), which will also act as a steric barrier to coalescence of the particles. Photographic products formed with such materials are more dye stable.
摘要翻译： 本发明通过用一层适用的氧阻隔聚合物如聚乙烯醇（PVA）包围每个颗粒，在单个成色剂或其它照相活性颗粒周围产生选择性氧气屏障，聚乙烯醇（PVA）也将作为颗粒聚结的空间屏障。 用这种材料形成的摄影产品更稳定染料。
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公开(公告)号：US5091296A
公开(公告)日：1992-02-25
申请号：US543910
申请日：1990-06-26
申请人： Pranab Bagchi , Steven J. Sargeant , James T. Beck , Brian Thomas
发明人： Pranab Bagchi , Steven J. Sargeant , James T. Beck , Brian Thomas
CPC分类号： G03C7/388 , Y10S516/01
摘要： This invention describes a process of coprecipitating a photographic material such as a dye-forming coupler inside a base ionizable polymeric particle. Preparation of such a dispersion is performed by providing a first flow comprising a solution of a surfactant in water containing a polymer ionizable by base, providing a second flow comprising a water miscible solvent, base, water, and the photographic material, then mixing the said first and said second flow and immediately neutralizing the mixed flow to precipitate the photographic material inside the polymer particles forming a fine particle colloidal dispersion of the photographic material. The polymer dispersions of the invention are characterized by high photographic activity and high dye-stability in some cases.
摘要翻译： 本发明描述了在基底可电离的聚合物颗粒内共沉淀诸如染料形成成色剂的照相材料的方法。 通过提供包含表面活性剂在含有可由碱离子化的聚合物的水中的溶液提供第一流，提供包含水混溶性溶剂，碱，水和照相材料的第二流，然后将所述 第一和所述第二流动并立即中和混合流以沉积形成照相材料的细颗粒胶体分散体的聚合物颗粒内的照相材料。 在一些情况下，本发明的聚合物分散体的特征在于高照相活性和高染料稳定性。
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公开(公告)号：US06420103B1
公开(公告)日：2002-07-16
申请号：US09266178
申请日：1999-03-10
IPC分类号： G03C138
CPC分类号： G03C7/3885 , G03C7/362 , G03C7/367 , G03C7/38
摘要： Silver halide light sensitive photographic elements are disclosed comprising a support bearing at least one yellow image forming hydrophilic colloid layer comprising a yellow dye-forming coupler and a trialkyl citrate coupler solvent of the formula C3H4(OH)(CO2R)3, where each R independently represents an alkyl group and the total number of carbon atoms for the three R groups combined is greater than 6. The combination of such citrate ester solvents with yellow dye forming couplers in photographic elements leads to both good reactivity and good image-dye light stability. The advantages of the invention are particularly useful for photographic color paper elements on reflective supports.
摘要翻译： 公开了卤化银光敏感照相材料，其包括载体，该载体承载至少一个黄色图像形成亲水胶体层，其包含黄色染料形成成色剂和式C 3 H 4（OH）（CO 2 R）3的三烷基柠檬酸酯偶联剂溶剂，其中每个R独立地 代表烷基，并且三个R基团的总碳原子数大于6.这些柠檬酸酯溶剂与形成成色剂的黄色染料在照相元件中的组合导致良好的反应性和良好的图像染料光稳定性。 本发明的优点对于反射支撑件上的照相彩色纸元件特别有用。
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10.发明授权Photographic element with yellow dye-forming coupler and stabilizing compounds 失效具有黄色染料成色剂和稳定化合物的摄影元件公开(公告)号：US06312881B1
公开(公告)日：2001-11-06
申请号：US09483396
申请日：2000-01-14
IPC分类号： G03C108
CPC分类号： G03C7/3013 , G03C7/30535 , G03C7/36 , G03C7/362 , G03C7/367 , G03C7/39236 , G03C7/39276
摘要： In accordance with one embodiment of the invention, a photographic element is disclosed comprising a silver halide emulsion layer having associated therewith an acetanilide-based yellow dye forming coupler and a stabilizer compound of the formula S-I: wherein R0 represents an aryl or heterocyclic group; Ra is H or a substituent group; L represents an alkylene linking group and p represents 0 or 1; and Rb is a substituent group, provided that substituent groups represented by Ra and Rb may be joined to form a ring. The presence of substituted amine compounds of formula S-I improves the efficiency of dye formation reaction for acetanilide-based couplers. When used in combination with known bis-phenolic stabilizers, substantial improvements in the light stability of the image dyes can be also be obtained. Accordingly, photographic elements of the present invention upon exposure and photographic processing exhibit good activity and yield yellow dye images that have low fading when exposed to light.
摘要翻译： 根据本发明的一个实施方案，公开了一种照相材料，其包含卤化银乳剂层，其具有与基于乙酰苯胺的黄色染料形成成色剂和式S-I的稳定剂化合物：其中R 0表示芳基或杂环基; Ra是H或取代基; L表示亚烷基连接基团，p表示0或1; 并且R b是取代基，条件是由R a和R b表示的取代基可以连接形成环。 式S-1的取代的胺化合物的存在提高了基于乙酰苯胺的成色剂的染料形成反应的效率。 当与已知的双酚稳定剂组合使用时，也可以获得图像染料的光稳定性的显着改善。 因此，本发明的照相元件在曝光和照相处理时表现出良好的活性，并产生当暴露于光时具有低褪色的黄色染料图像。
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