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    Display comprising liquid crystal droplets in a hydrophobic binder
    22.
    发明申请
    Display comprising liquid crystal droplets in a hydrophobic binder 有权
    显示器包括疏水性粘合剂中的液晶小滴

    公开(公告)号：US20060286309A1

    公开(公告)日：2006-12-21

    申请号：US11156866

    申请日：2005-06-20

    Applicant: Krishnan Chari ,  Debasis Majumdar

    Inventor： Krishnan Chari ,  Debasis Majumdar

    IPC: C09K19/00 ,  C09K19/38

    CPC classification number: B82Y30/00 ,  C09K19/544 ,  G02F1/1334 ,  G02F2001/13345 ,  Y10T428/10 ,  Y10T428/1005 ,  Y10T428/1036

    Abstract: The present invention relates to a display comprising at least one substrate and at least one electronically modulated imaging layer and at least one electrically conductive layer, wherein the electronically modulated imaging layer comprises a self-assembled, close-packed, ordered monolayer of domains of electrically modulated material in a water insoluble, hydrophobic polymer matrix and the at least one electrically conductive layer comprises electronically conductive polymer and a conductivity enhancing agent.

    Abstract translation: 本发明涉及包括至少一个基底和至少一个电子调制的成像层和至少一个导电层的显示器，其中电子调制的成像层包括一个自组装的，紧密堆积的，有序的单层电层 调节的材料在水不溶性疏水性聚合物基质中，并且所述至少一个导电层包含电子导电聚合物和导电性增强剂。

    Reflective liquid crystal display with infrared reflection
    23.
    发明授权
    Reflective liquid crystal display with infrared reflection 有权
    反射式液晶显示器，带红外反射

    公开(公告)号：US07123335B2

    公开(公告)日：2006-10-17

    申请号：US10853884

    申请日：2004-05-25

    Applicant: Krishnan Chari ,  Charles M. Rankin, Jr.

    Inventor： Krishnan Chari ,  Charles M. Rankin, Jr.

    IPC: C09K19/02 ,  G02F1/1333

    CPC classification number: G02F1/1334 ,  G02F1/13718

    Abstract: A display sheet is disclosed comprising, a substrate, first transparent conductors, second conductors and, between first and second conductors, at least one imaging layer comprising a substantial monolayer of isolated domains of liquid-crystal material, dispersed in a continuous matrix, wherein said domains of liquid-crystal material comprises a mixture of at least two populations, a first population comprising a first liquid-crystal material having a first λmax within the infrared spectral region and a second population comprising a second liquid-crystal material having a second λmax within the visible spectral region. Alternately, the imaging layer can comprise a substantial monolayer of isolated domains of liquid-crystal material comprising a population of domains comprising a liquid-crystal material having a λmax between 700 and 800 and having a half-peak width that extends into both the visible spectrum region and the infrared spectral region.

    Abstract translation: 公开了一种显示片，其包括：衬底，第一透明导体，第二导​​体，以及在第一和第二导体之间的至少一个成像层，其包含分散在连续矩阵中的液晶材料隔离畴的实质单层，其中所述 液晶材料的结构域包括至少两个群体的混合物，第一群体包括在红外光谱区域内具有第一λ最大值的第一液晶材料和包含第二液体的第二群体 在可见光谱区内具有第二λ最大值的晶体材料。 或者，成像层可以包括液晶材料的分离域的实质单层，其包含一组结构域，所述结构域包括具有700-800之间的λ最大值的具有半峰的液晶材料 宽度延伸到可见光谱区域和红外光谱区域。

    Reflective chiral-nematic liquid crystal display with broadband reflection
    27.
    发明申请
    Reflective chiral-nematic liquid crystal display with broadband reflection 有权
    具有宽带反射功能的反光手写向列型液晶显示器

    公开(公告)号：US20050110925A1

    公开(公告)日：2005-05-26

    申请号：US10718900

    申请日：2003-11-21

    Applicant: Krishnan Chari ,  Charles Rankin

    Inventor： Krishnan Chari ,  Charles Rankin

    IPC: G02F1/1333 ,  G02F1/1334 ,  G02F1/137 ,  G02F1/1335

    CPC classification number: G02F1/13718 ,  G02F1/133305 ,  G02F1/1334 ,  G02F2203/34

    Abstract: A display sheet comprising a substrate carrying layers of material; including a polymer-dispersed chiral-nematic liquid-crystal layer having a first high reflection state within the visible light spectrum and a second less-reflective state in said spectrum, said states being changeable by an electric field, which states can be maintained in the absence of an electric field; a first transparent conductor disposed over said polymer-dispersed chiral-nematic liquid-crystal layer; and a second conductor, wherein said imaging layer is substantially a monolayer of said domains comprises a mixture of at least two differently reflecting liquid crystal materials, in which the λ maximums of the two materials are separated by 100 to 250 nm.

    Abstract translation: 一种显示板，包括承载材料层的基板; 包括在可见光谱内具有第一高反射状态的聚合物分散的手性向列型液晶层和所述光谱中的第二较少反射状态，所述状态可由电场改变，这些状态可以保持在 没有电场; 布置在所述聚合物分散手性向列型液晶层上的第一透明导体; 和第二导体，其中所述成像层基本上是所述畴的单层包括至少两种不同反射的液晶材料的混合物，其中两种材料的λ最大值分隔100至250nm。

    Color photographic elements containing yellow-colored magenta dye-forming masking couplers
    28.
    发明授权
    Color photographic elements containing yellow-colored magenta dye-forming masking couplers 失效
    含有黄色品红色染料形成掩蔽剂的彩色照相元件

    公开(公告)号：US6132943A

    公开(公告)日：2000-10-17

    申请号：US418392

    申请日：1999-10-14

    Applicant: Janet N. Younathan ,  Michael W. Crawley ,  Krishnan Chari

    Inventor： Janet N. Younathan ,  Michael W. Crawley ,  Krishnan Chari

    IPC: C07D231/52 ,  C09B29/50 ,  G03C7/305 ,  G03C7/333 ,  G03C7/384 ,  G03C1/46

    CPC classification number: G03C7/3335 ,  G03C7/30547 ,  G03C7/384

    Abstract: A multilayer silver halide color photographic element is disclosed comprising a support bearing a light-sensitive silver halide emulsion layer and a non-diffusible yellow-colored magenta dye-forming masking coupler of the following formula ##STR1## wherein COUP is a magenta dye-forming coupler having the azo group attached to its coupling position; q is an integer of from 0 to 3, and each R' independently represents a substituent group or two R' groups together complete a ring of from 5-7 atoms, which ring may include 1 or more heteroatoms selected from O, N and S; m is 1 or 2, and DG represents a substituent of the formula ##STR2## where each L.sup.1 represents a divalent linking group, preferably --O(CH.sub.2).sub.y --, --NHCO(CH.sub.2).sub.y --, or --NRCO(CH.sub.2).sub.y --, where R represents an alkyl or aryl group and y represents an integer from 1 to 4; each k is either 0 or 1; each L.sup.2 represents --NHSO.sub.2 --, --NHCO--, --SO.sub.2 NH--, or --CONH--, preferably at least one L.sup.2 group being --NHSO.sub.2 -- or --SO.sub.2 NH--, more preferably --NHSO.sub.2 --; each Z represents --SO.sub.3 M or --PO.sub.3 M, where M represents H or a counter ion such as Na, K, Li, or NH.sub.4 ; and each n represents an integer of from 1 to 5; with the provisos that each DG substituent group, when present, is located in the 4- or 6-position meta to the 2-hydroxyl substituent on the arylazo group, and that when at least one L.sup.1 or L.sup.2 group comprises an --NHSO.sub.2 -- or --SO.sub.2 NH-- group then the total number of Z group substituents on the coupler is at least 2, and when no L.sup.1 or L.sup.2 group comprises an --NHSO.sub.2 -- or --SO.sub.2 NH-- group then the total number of Z group substituents on the coupler is at least 3, and if k is 0 for a DG substituent group then the L.sup.2 group for that DG substituent is either --NHSO.sub.2 -- or --NHCO--.

    Abstract translation: 公开了一种多层卤化银彩色照相材料，其包含支持感光卤化银乳剂层的支持体和下式不可扩散的黄色品红色染料形成掩蔽剂，其中COUP是形成品红色染料的成色剂，其具有 偶氮基团连接到其耦合位置; q为0〜3的整数，每个R'独立地表示取代基或两个R'基团一起形成5-7个原子的环，该环可包括1个或多个选自O，N和S的杂原子 ; m为1或2，DG表示下式的取代基，其中每个L1表示二价连接基团，优选-O（CH 2）y - ， - NHCO（CH 2）y - 或-NRCO（CH 2）y - ，其中 R表示烷基或芳基，y表示1至4的整数; 每个k是0或1; 每个L2代表-NHSO2-，-NHCO-，-SO2NH-或-CONH-，优选至少一个L2基团是-NHSO2-或-SO2NH-，更优选-NHSO2-; 每个Z表示-SO 3 M或-PO 3 M，其中M表示H或抗衡离子如Na，K，Li或NH 4; 并且每个n表示1至5的整数; 条件是每个DG取代基（当存在时）位于芳基偶氮基上的2-羟基取代基的4-或6-位，并且当至少一个L1或L2基团包含-NHSO 2 - 或 -SO 2 NH-基团，则成色剂上Z基团取代基的总数至少为2，当没有L1或L2基团包含-NHSO2-或-SO2NH-基团时，耦合器上的Z基团取代基的总数为 至少3，如果DG取代基的k为0，则该DG取代基的L2基团为-NHSO 2 - 或-NHCO-。

    Low melting point ionizable epoxy scavengers for residual magenta couplers
    29.
    发明授权
    Low melting point ionizable epoxy scavengers for residual magenta couplers 失效
    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

    Applicant: Krishnan Chari ,  Paul P. Spara ,  Sundaram Krishnamurthy

    Inventor： Krishnan Chari ,  Paul P. Spara ,  Sundaram Krishnamurthy

    IPC: C07D303/16 ,  C07D303/22 ,  C07D303/34 ,  C07D303/42 ,  C07D303/46 ,  C07D405/12 ,  C07F5/02 ,  C07F9/655 ,  G03C1/005 ,  G03C7/392 ,  G03C7/388

    CPC classification number: C07D303/22 ,  C07D303/16 ,  C07D303/34 ,  C07D303/42 ,  C07D303/46 ,  C07D405/12 ,  C07F5/025 ,  C07F9/65502 ,  G03C1/005 ,  G03C7/39268 ,  G03C7/39296 ,  Y10S430/136

    Abstract: 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.

    Abstract translation: 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。

    Stabilization of precipitated dispersions of hydrophobic couplers
    30.
    发明授权
    Stabilization of precipitated dispersions of hydrophobic couplers 失效
    疏水性成色剂沉淀分散体的稳定化

    公开(公告)号：US5087554A

    公开(公告)日：1992-02-11

    申请号：US544720

    申请日：1990-06-27

    Applicant: Krishnan Chari ,  James T. Beck

    Inventor： Krishnan Chari ,  James T. Beck

    IPC: B01J13/00 ,  G03C1/053 ,  G03C1/38 ,  G03C7/388

    CPC classification number: G03C7/3882

    Abstract: The invention provides stable dispersions of couplers and methods of their formation. The stable dispersions are formed by the use of a nonionic water soluble polymer in combination with an anionic surfactant having a sulfate or sulfonate head group and a hydrophobic group of 8 to 20 carbons. The preferred nonionic water soluble polymers are polyethyleneoxide and polyvinylpyrrolidene. It is preferred that the dispersions have a pH of between about 5 and 5.5.

    Abstract translation: 本发明提供稳定的成色剂分散体及其形成方法。 通过使用非离子水溶性聚合物与具有硫酸盐或磺酸盐头基和8至20个碳的疏水基团的阴离子表面活性剂组合来形成稳定的分散体。 优选的非离子水溶性聚合物是聚环氧乙烷和聚乙烯吡咯烷酮。 优选分散体的pH为约5至5.5。

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