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1. 发明授权

US5476756A Color photographic element with improved resistance to thermal and photochemical yellowing 失效
标题翻译：具有改善的抗热和光化学黄变性的彩色照相元件
公开(公告)号：US5476756A
公开(公告)日：1995-12-19
申请号：US257584
申请日：1994-06-08
申请人： Krishnan Chari , Wendell F. Smith , Sundaram Krishnamurthy
发明人： Krishnan Chari , Wendell F. Smith , Sundaram Krishnamurthy
IPC分类号： G03C7/30 , G03C7/38 , G03C7/388 , G03C7/392 , G03C7/407 , G03C7/413 , G03C11/00
CPC分类号： G03C7/3008 , G03C7/3029 , G03C7/3885 , G03C7/413
摘要： Yellowing of a processed photographic element is inhibited by incorporating a scavenger compound capable of reacting with magenta coupler, e.g. an epoxy compound, in a layer adjacent a layer containing the magenta coupler. At least one of these layers contains a solubilizing agent for the scavenger compound. In preferred embodiments, the processing solution used to process the photographic element contains an external solubilizing agent for the scavenger compound, preferably benzyl alcohol.
摘要翻译：通过加入能够与品红成色剂反应的清除剂化合物，例如，在邻近包含品红色成色剂的层的层中的环氧化合物。这些层中的至少一层含有清除剂化合物的增溶剂。在优选的实施方案中，用于处理照相元件的处理溶液含有用于清除剂化合物的外部增溶剂，优选苄醇。

2. 发明授权

US5543276A Color photographic element containing new epoxy scavengers for residual magenta coupler 失效
标题翻译：含有新型环氧清除剂的彩色照相元件，用于残留品红色成色剂
公开(公告)号：US5543276A
公开(公告)日：1996-08-06
申请号：US255512
申请日：1994-06-08
申请人： Krishnan Chari , Wendell F. Smith, Jr. , Paul P. Spara , Sundaram Krishnamurthy
发明人： Krishnan Chari , Wendell F. Smith, Jr. , Paul P. Spara , Sundaram Krishnamurthy
IPC分类号： C07D303/16 , C07D303/22 , C07D303/34 , C07D303/42 , C07D303/46 , C07D405/12 , C07F5/02 , C07F9/655 , G03C1/005 , G03C7/392 , G03C1/34
CPC分类号： C07D303/22 , C07D303/16 , C07D303/34 , C07D303/42 , C07D303/46 , C07D405/12 , C07F5/025 , C07F9/65502 , G03C1/005 , G03C7/39268 , G03C7/39296
摘要： Thermal and photochemical yellowing of a color photographic element, such as a color print, is inhibited by incorporating into the photographic element an ionizable epoxy compound having the formula: ##STR1## wherein: R is H, alkyl, substituted alkyl, aryl, or substituted aryl;L.sub.1 is alkyl, substituted alkyl, aryl, or substituted aryl;L.sub.2 is O, CO, S, SO.sub.2, PO.sub.2, C(O)O, NHCO or NHSO.sub.2 ;L.sub.3 is alkyl or substituted alkyl;m is 0 or 1;p is 0 or 1;X is selected from the group consisting of ##STR2## wherein: R' is H, alkyl, substituted alkyl, aryl or substituted aryl,or, if L.sub.2 comprises an ionizable group, X is alkyl, substituted alkyl, aryl or substituted aryl.
摘要翻译：彩色照相元件如彩色印刷品的热和光化学黄化通过将具有下列通式的可离子化环氧化合物加入到照相元件中：kyl，芳基或取代的芳基; L 1是烷基，取代的烷基，芳基或取代的芳基; L2是O，CO，S，SO2，PO2，C（O）O，NHCO或NHSO2; L3是烷基或取代的烷基; m为0或1; p为0或1; X选自，其中：R'是H，烷基，取代的烷基，芳基或取代的芳基，或者如果L2包含可离子化基团，则X是烷基，取代的烷基，芳基或取代的芳基。

3. 发明授权

US5508147A Color photographic element with improved resistance to thermal and photochemical yellowing and method thereof 失效
标题翻译：具有改善的耐热和光化学黄变性的彩色照相元件及其方法
公开(公告)号：US5508147A
公开(公告)日：1996-04-16
申请号：US431
申请日：1993-01-04
申请人： Krishnan Chari , Wendell F. Smith , Sundaram Krishnamurthy
发明人： Krishnan Chari , Wendell F. Smith , Sundaram Krishnamurthy
IPC分类号： G03C7/30 , G03C7/38 , G03C7/388 , G03C7/392 , G03C7/407 , G03C7/413 , G03C11/00
CPC分类号： G03C7/3008 , G03C7/3029 , G03C7/3885 , G03C7/413
摘要： Yellowing of a processed photographic element is inhibited by incorporating a scavenger comound capable of reacting with magenta coupler, e.g. an epoxy compound, in a layer adjacent a layer containing the magenta coupler. In a preferred embodiment, the magenta coupler containing layer is sandwiched between layers containing the scavenger compound. Prior to processing at least one of these layers contains a solubilizing agent for the scavenger compound. In preferred embodiments, the processing solution used to process the photographic element containing an external solubilizing agent for the scavenger compound, preferably benzyl alcohol.
摘要翻译：通过加入能够与品红色成色剂反应的清除剂组合物，例如，在邻近包含品红色成色剂的层的层中的环氧化合物。在优选的实施方案中，含有红紫色成色剂的层夹在含有清除剂化合物的层之间。在加工之前，这些层中的至少一层含有用于清除剂化合物的增溶剂。在优选的实施方案中，用于处理含有用于清除剂化合物的外部增溶剂的照相元件的处理溶液，优选苄醇。

4. 发明授权

US5627017A Low melting point ionizable epoxy scavengers for residual magenta couplers 失效
标题翻译：用于残留品红色成色剂的低熔点电离环氧清除剂
公开(公告)号：US5627017A
公开(公告)日：1997-05-06
申请号：US427764
申请日：1995-04-25
申请人： Krishnan Chari , Paul P. Spara , Sundaram Krishnamurthy
发明人： Krishnan Chari , Paul P. Spara , Sundaram Krishnamurthy
IPC分类号： C07D303/16 , C07D303/22 , C07D303/34 , C07D303/42 , C07D303/46 , C07D405/12 , C07F5/02 , C07F9/655 , G03C1/005 , G03C7/392 , G03C7/388
CPC分类号： C07D303/22 , C07D303/16 , C07D303/34 , C07D303/42 , C07D303/46 , C07D405/12 , C07F5/025 , C07F9/65502 , G03C1/005 , G03C7/39268 , G03C7/39296 , Y10S430/136
摘要： Low melting point epoxy scavenger compounds are disclosed which contain a pH dependent ionizable group to facilitate migration of the scavenger from an adjacent scavenger layer (that does not contain any coupler) to an imaging layer (containing coupler and emulsion) of a photographic element at the pH of development. One aspect of the invention comprises a process of forming an aqueous dispersion of an epoxy compound of the structural formula SI: ##STR1## wherein: R is H, an alkyl group, or an aryl group; L.sub.1 is an alkyl group or an aryl group; L.sub.2 is --O--, --CO--, --S--, --SO.sub.2 --, --PO.sub.2 --, --CO.sub.2 --, --NHCO-- or --NHSO.sub.2 --, wherein L.sub.2 may be orientated in either direction; L.sub.3 is an alkyl group; m is 0 or 1; p is 0 or 1; and X is ##STR2## wherein R' is H or an alkyl or aryl group, with the proviso that where L.sub.2 comprises an ionizable group, X may also be an alkyl group or an aryl group; wherein the compound has a melting point of less than about 50.degree. C. and the process comprises adding the compound in a liquid state to an aqueous solution, and directly dispersing the compound in the aqueous solution. Thermal and photochemical yellowing of a color photographic element, such as a color print, is inhibited by incorporating such compounds into the photographic element.
摘要翻译：公开了低熔点环氧清除剂化合物，其含有pH依赖性可电离基团，以促进清除剂从相邻的清除剂层（不含任何偶合剂）迁移至摄影元件的成像层（含有偶联剂和乳液）发展pH。本发明的一个方面包括形成结构式为SI：n芳基的环氧化合物的水分散体的方法; L1是烷基或芳基; L 2是-O-，-CO-，-S-，-SO 2 - ， - O 2 - ， - CO 2 - ， - NHCO-或-NHSO 2 - ，其中L2可以沿任一方向取向; L3是烷基; m为0或1; p为0或1; 并且X是，其中R'是H或烷基或芳基，条件是其中L2包含可离子化基团，X也可以是烷基或芳基; 其中所述化合物具有小于约50℃的熔点，并且所述方法包括将液体中的化合物加入到水溶液中，并将化合物直接分散在水溶液中。通过将这样的化合物并入照相元件中，可以抑制彩色照相元件如彩色印刷的热和光化学变黄。

5. 发明授权

US5597685A Color photographic element having improved image stability 失效
标题翻译：具有改进的图像稳定性的彩色照相元件
公开(公告)号：US5597685A
公开(公告)日：1997-01-28
申请号：US429269
申请日：1995-04-25
申请人： Krishnan Chari , Wendell F. Smith, Jr.
发明人： Krishnan Chari , Wendell F. Smith, Jr.
IPC分类号： C07D303/16 , C07D303/22 , C07D303/34 , C07D303/42 , C07D303/46 , C07D405/12 , C07F5/02 , C07F9/655 , G03C1/005 , G03C7/392 , G03C1/34 , G03C7/384
CPC分类号： C07D303/22 , C07D303/16 , C07D303/34 , C07D303/42 , C07D303/46 , C07D405/12 , C07F5/025 , C07F9/65502 , G03C1/005 , G03C7/39268 , G03C7/39296
摘要： Color photographic element comprising residual magenta coupler scavenger ionizable epoxy compounds in combination with a specific class of image stabilizers are disclosed. Such elements comprise a support bearing thereon: (a) a photosensitive first layer comprising (i) a silver halide emulsion, (ii) a magenta coupler dispersion, and (iii) an image stabilizer of the following formula STG-A: ##STR1## wherein R.sub.1 represents an alkyl group, a cycloalkyl group, an alkenyl phenyl group, an aryl group, a heterocyclic group, an acyl group, a bridged hydrocarbon group, an alkyl sulfonyl group or an aryl sulfonyl group; R.sub.2 represents a group capable of being substituted on the benzene ring; r represents an integer between 0 and 4; and A represents a group of non metal atoms necessary for the formation of a 5 to 8 membered ring together with the nitrogen atom; and (b) a second layer comprising a dispersion of an epoxy compound of the structural formula SI: ##STR2## wherein R is H, an alkyl group, or an aryl group; L.sub.1 is an alkyl group or an aryl group; L.sub.2 is --O--, --CO--, --S--, --SO.sub.2 --, --PO.sub.2 --, --CO.sub.2 --, --NHCO-- or --NHSO.sub.2 --, wherein L.sub.2 may be orientated in either direction; L.sub.3 is an alkyl group; m is 0 or 1; p is 0 or 1; and X is ##STR3## wherein R' is H or an alkyl or aryl group, with the proviso that where L.sub.2 comprises an ionizable group, X may also be an alkyl group or an aryl group. The photographic elements of the invention exhibit inhibited thermal and photochemical yellowing.
摘要翻译：公开了包含残留品红成色剂清除剂可离子化环氧化合物与特定类型的图像稳定剂组合的彩色照相元件。这样的元件包括其上的支撑轴承：（a）光敏第一层，其包含（i）卤化银乳剂，（ii）品红色成色剂分散体，和（iii）下式STG-A的图像稳定剂： STG-A，其中R1表示烷基，环烷基，烯基苯基，芳基，杂环基，酰基，桥连烃基，烷基磺酰基或芳基磺酰基; R2表示能够在苯环上被取代的基团; r表示0〜4的整数。 A表示与氮原子一起形成5至8元环所必需的一组非金属原子; 和（b）包含结构式SI的环氧化合物的分散体的第二层：其中R是H，烷基或芳基; L1是烷基或芳基; L 2是-O-，-CO-，-S-，-SO 2 - ， - O 2 - ， - CO 2 - ， - NHCO-或-NHSO 2 - ，其中L2可以沿任一方向取向; L3是烷基; m为0或1; p为0或1; 并且X是，其中R'是H或烷基或芳基，条件是其中L 2包含可离子化基团，X也可以是烷基或芳基。本发明的照相元件表现出抑制的热和光化学黄变。

6. 发明授权

US10265263B2 Surfactant responsive emulsion polymerized micro-gels 有权
公开(公告)号：US10265263B2
公开(公告)日：2019-04-23
申请号：US14344774
申请日：2012-09-13
申请人： Shui-Jen Raymond Hsu , Krishnan Chari , Wei-Yeih Yang , Prachur Bhargava , Murat Kadir
发明人： Shui-Jen Raymond Hsu , Krishnan Chari , Wei-Yeih Yang , Prachur Bhargava , Murat Kadir
IPC分类号： A61K8/81 , C08K3/20 , C09K8/035 , C09K8/60 , C09K8/68 , A61K8/04 , A61K8/42 , A61K8/46 , A61Q19/00 , C08K5/20 , C08K5/41 , C09K8/12 , C09K8/80 , A61K8/84
摘要： A stable, aqueous composition containing a crosslinked, nonionic, amphiphilic polymer capable of forming a yield stress fluid in the presence of a surfactant is disclosed. The yield stress fluid is capable of suspending insoluble materials in the form of particulates and/or droplets requiring suspension or stabilization.

7. 发明授权

US07704568B2 Sensitized photochemical switching for cholesteric liquid crystal displays 失效
标题翻译：用于胆甾型液晶显示器的敏化光化学切换
公开(公告)号：US07704568B2
公开(公告)日：2010-04-27
申请号：US12331773
申请日：2008-12-10
申请人： Deepak Shukla , Krishnan Chari
发明人： Deepak Shukla , Krishnan Chari
IPC分类号： C09K19/52 , C09K19/58 , G02F1/133 , G11B7/244 , G11B7/245
CPC分类号： C09K19/586 , C09K19/588 , Y10T428/10 , Y10T428/1036 , Y10T428/1055
摘要： The present invention relates to photo-tunable dopant compositions comprising a photo-reactive chiral compound capable of undergoing a photochemical reaction resulting in the loss of chirality, and a triplet sensitizer. The present invention also relates to a display comprising a substrate, a liquid crystalline layer thereon, wherein the liquid crystalline layer comprises a nematic host, at least one chiral dopant, a photo-reacted compound, and a triplet sensitizer, and at least one transparent conductive layer. The present invention also relates to a method of tuning a cholesteric liquid crystal material comprising providing at least one mesogenic compound, at least one triplet sensitizer, and at least one photo-reactive chiral compound; combining the at least one mesogenic compound, at least one triplet sensitizer, and at least one photo-reactive chiral compound to form a mixture; and irradiating the mixture for a period of time.
摘要翻译：本发明涉及光可掺杂掺杂剂组合物，其包含能够经历导致手性丧失的光化学反应的光反应性手性化合物和三线态敏化剂。本发明还涉及一种显示器，其包括基底，其上的液晶层，其中所述液晶层包括向列型主体，至少一种手性掺杂剂，光反应化合物和三线态敏化剂，以及至少一种透明导电层。本发明还涉及一种调节胆甾型液晶材料的方法，包括提供至少一种介晶化合物，至少一种三线态敏化剂和至少一种光反应性手性化合物; 组合所述至少一种介晶化合物，至少一种三线态敏化剂和至少一种光反应性手性化合物以形成混合物; 并将混合物照射一段时间。

8. 发明申请

US20100068418A1 Sensitized Photochemical Switching for Cholesteric Liquid Crystal Displays 有权
标题翻译：用于胆固醇液晶显示器的敏化光化学转换
公开(公告)号：US20100068418A1
公开(公告)日：2010-03-18
申请号：US12622534
申请日：2009-11-20
申请人： Deepak Shukla , Krishnan Chari
发明人： Deepak Shukla , Krishnan Chari
IPC分类号： C09K19/02 , C09K19/00
CPC分类号： C09K19/586 , C09K19/588 , Y10T428/10 , Y10T428/1036 , Y10T428/1055
摘要： The present invention relates to photo-tunable dopant compositions comprising a photo-reactive chiral compound capable of undergoing a photochemical reaction resulting in the loss of chirality, and a triplet sensitizer. The present invention also relates to a display comprising a substrate, a liquid crystalline layer thereon, wherein the liquid crystalline layer comprises a nematic host, at least one chiral dopant, a photo-reacted compound, and a triplet sensitizer, and at least one transparent conductive layer. The present invention also relates to a method of tuning a cholesteric liquid crystal material comprising providing at least one mesogenic compound, at least one triplet sensitizer, and at least one photo-reactive chiral compound; combining the at least one mesogenic compound, at least one triplet sensitizer, and at least one photo-reactive chiral compound to form a mixture; and irradiating the mixture for a period of time.
摘要翻译：本发明涉及光可掺杂掺杂剂组合物，其包含能够经历导致手性丧失的光化学反应的光反应性手性化合物和三线态敏化剂。本发明还涉及一种显示器，其包括基底，其上的液晶层，其中所述液晶层包括向列型主体，至少一种手性掺杂剂，光反应化合物和三线态敏化剂，以及至少一种透明导电层。本发明还涉及一种调节胆甾型液晶材料的方法，包括提供至少一种介晶化合物，至少一种三线态敏化剂和至少一种光反应性手性化合物; 组合所述至少一种介晶化合物，至少一种三线态敏化剂和至少一种光反应性手性化合物以形成混合物; 并将混合物照射一段时间。

9. 发明申请

US20090316417A1 Light-redirecting article 审中-公开
标题翻译：光重定向文章
公开(公告)号：US20090316417A1
公开(公告)日：2009-12-24
申请号：US12214745
申请日：2008-06-20
申请人： Krishnan Chari , Charles W. Lander , Charles C. Anderson
发明人： Krishnan Chari , Charles W. Lander , Charles C. Anderson
IPC分类号： F21V5/00 , G02B5/30
CPC分类号： G02B6/0065 , G02B6/0051 , G02B6/0053 , G02F1/133606 , G02F2001/133507 , G02F2001/133607
摘要： A method for forming a light-redirecting article is provided wherein a surface of a substrate is conditioned by applying a layer of an embedment material. A close-packed layer of microspheres is assembled using drying-assisted self-assembly and applied to the conditioned surface. Microspheres are then embedded halfway into the surface of the layer of the embedment material.
摘要翻译：提供了一种用于形成光重定向制品的方法，其中通过施加一层嵌入材料对衬底的表面进行调理。使用干燥辅助的自组装装配紧密堆积的微球层，并施加到调理表面。然后将微球中途嵌入到嵌入材料层的表面中。

10. 发明授权

US07507449B2 Displays with low driving voltage and anisotropic particles 有权
标题翻译：显示低驱动电压和各向异性粒子
公开(公告)号：US07507449B2
公开(公告)日：2009-03-24
申请号：US11442811
申请日：2006-05-30
申请人： Krishnan Chari , David M. Johnson , Charles M. Rankin, Jr. , Glen C. Irvin, Jr.
发明人： Krishnan Chari , David M. Johnson , Charles M. Rankin, Jr. , Glen C. Irvin, Jr.
IPC分类号： C09K19/00 , C09K19/52
CPC分类号： C09K19/0225 , B82Y20/00 , C09K19/52 , C09K19/54 , G02F1/13439 , G02F1/13718 , G02F2001/13775 , G02F2202/36 , G02F2203/02 , Y10T428/10 , Y10T428/1005 , Y10T428/1036
摘要： The present invention relates to a high contrast reflective display comprising a substrate, at least one electronically modulated imaging layer, wherein the electronically modulated imaging layer comprises a uniformly thick, close-packed, ordered monolayer of domains of electrically modulated material in a fixed polymer matrix, at least one barrier layer, wherein the barrier layer is conductive in a direction perpendicular to the substrate, and at least one electrically conductive layer. The invention also relates to a method of making the display with a barrier layer comprising anisotropic particles and orienting the anisotropic conductor to produce a barrier layer conductive in a direction perpendicular to the substrate.
摘要翻译：本发明涉及一种高对比度反射显示器，其包括基底，至少一个电子调制成像层，其中电子调制成像层包含固定聚合物基质中电调制材料的均匀厚的，紧密堆积的有序单层的域至少一个阻挡层，其中阻挡层在垂直于衬底的方向上是导电的，以及至少一个导电层。本发明还涉及一种制造具有包含各向异性粒子的阻挡层并使各向异性导体定向以在垂直于衬底的方向上导电的阻挡层的显示器的方法。

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