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    Photographic element containing a high-dye-yield coupler for producing a yellow hue
    2.
    发明授权
    Photographic element containing a high-dye-yield coupler for producing a yellow hue 失效
    含有用于产生黄色调的高染料收率成色剂的摄影元件

    公开(公告)号：US06569612B1

    公开(公告)日：2003-05-27

    申请号：US09943073

    申请日：2001-08-30

    Applicant: Lelia Cosimbescu ,  Jared B. Mooberry ,  David T. Southby ,  Louis E. Friedrich

    Inventor： Lelia Cosimbescu ,  Jared B. Mooberry ,  David T. Southby ,  Louis E. Friedrich

    IPC: G03C146

    CPC classification number: G03C7/36 ,  G03C1/498 ,  Y10S430/151 ,  Y10S430/156

    Abstract: A color photographic element is disclosed comprising at least three light-sensitive units which have their individual sensitivities in different wavelength regions, comprising at least one imaging layer comprising a light-sensitive silver-halide emulsion, binder, and a yellow coupler represented by the following structure: Wherein COUP is a photographic coupler residue capable of coupling with oxidized color developer to form a first yellow dye L is a linking group selected from the group consisting of —OC(═O)—, —OC(═S)—, —SC(═O)—, and —SC(═S)—, and —DYE is a releasable second yellow dye or yellow dye precursor, wherein COUP is an acetanilide compound that contains one or more electron-withdrawing groups such that the pKa at the coupling site is less than 8.7. Such yellow couplers improve activity and enhance dye densities.

    Abstract translation: 公开了一种彩色照相元件，其包括至少三个在不同波长区域具有各自敏感度的光敏单元，其包含至少一个成像层，该成像层包含感光卤化银乳剂，粘合剂和由以下物质表示的黄色成色剂 结构：其中COUP是能够与氧化的显色剂偶联以形成第一黄色染料的照相成色剂残基L是选自-OC（= O） - ， - OC（= S） - ， - SC（= O） - 和-SSC（= S） - ，-DYE是可释放的第二黄色染料或黄色染料前体，其中COUP是含有一个或多个吸电子基团的乙酰苯胺化合物，使得pKa在 偶联位点小于8.7。 这种黄色成色剂提高了活性并提高了染料密度。

    Synthesis of unsymmetric anthracene compounds
    4.
    发明申请
    Synthesis of unsymmetric anthracene compounds 审中-公开
    不对称蒽化合物的合成

    公开(公告)号：US20050245752A1

    公开(公告)日：2005-11-03

    申请号：US10834826

    申请日：2004-04-29

    Applicant: Scott Conley ,  Lelia Cosimbescu ,  William Vreeland

    Inventor： Scott Conley ,  Lelia Cosimbescu ,  William Vreeland

    IPC: C07C1/26 ,  C07C1/32 ,  C07C50/16 ,  C07C17/00

    CPC classification number: C07C1/321 ,  C07C1/26 ,  C07C1/322 ,  C07C2523/44 ,  C07C15/28

    Abstract: A process for forming an unsymmetric anthracene compound comprises a first step of forming a 9-perfluoroalkylsulfonate derivative of anthrone by reacting the anthrone with a perfluoroalkyl sulfonating agent, followed by a second step of contacting the reaction product with an aryl or heteroaryl boronic acid, ester or anhydride, and a palladium catalyst for a period of time sufficient to form an unsymmetric anthracene compound having at least one 9-position aromatic substituent.

    Abstract translation: 形成不对称蒽化合物的方法包括通过使蒽酮与全氟烷基磺酸化剂反应形成蒽酮的9-全氟烷基磺酸酯衍生物的第一步骤，然后使反应产物与芳基或杂芳基硼酸酯反应 或酸酐和钯催化剂，其时间足以形成具有至少一个9-位芳族取代基的不对称蒽化合物。

    Green organic light-emitting diodes
    9.
    发明申请
    Green organic light-emitting diodes 审中-公开
    绿色有机发光二极管

    公开(公告)号：US20050058853A1

    公开(公告)日：2005-03-17

    申请号：US10662272

    申请日：2003-09-15

    Applicant: Lelia Cosimbescu ,  Tukaram Hatwar

    Inventor： Lelia Cosimbescu ,  Tukaram Hatwar

    IPC: C07C15/28 ,  C07C15/38 ,  C09K11/06 ,  H01L51/00 ,  H01L51/30 ,  H01L51/40 ,  H01L51/50 ,  H05B33/14 ,  H05B33/12

    CPC classification number: H01L51/5036 ,  C07C15/28 ,  C07C15/38 ,  C09K11/06 ,  C09K2211/1003 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1029 ,  C09K2211/1033 ,  C09K2211/1037 ,  C09K2211/1044 ,  C09K2211/1055 ,  C09K2211/107 ,  C09K2211/1092 ,  H01L51/002 ,  H01L51/0054 ,  H01L51/0058 ,  H01L51/0059 ,  H01L51/0067 ,  H01L51/0068 ,  H01L51/0073 ,  H01L51/008 ,  H01L51/0084 ,  H01L51/0085 ,  H01L51/0089 ,  H01L51/5012 ,  H05B33/14

    Abstract: Disclosed is an electroluminescent device having a cathode and an anode, an organic light emitting layer (LEL) containing at least one organic host material and a light emitting first dopant, and a layer containing a stabilizing second dopant wherein: a) the organic host material is capable of sustaining both hole and electron injection and recombination of electrons and holes; and b) the first dopant is a green light emitting organic material capable of accepting energy from the electron-hole recombination in the host material and of accepting energy transferred from the second dopant and is selected to have a bandgap energy lower than or equal to the bandgap energy of the second dopant material; c) the second dopant is a stabilizing material capable of accepting energy of electron-hole recombination in the host material, the second dopant being selected to have a bandgap energy lower than the bandgap energy of the host material, but higher or equal to the first dopant; wherein emissions from the first dopant and emissions from the second dopant, if any, have a peak emission in the OLED device less than 570 nm.

    Abstract translation: 公开了具有阴极和阳极的电致发光器件，包含至少一种有机主体材料和发光第一掺杂剂的有机发光层（LEL）和包含稳定性第二掺杂剂的层，其中：a）有机主体材料 能够维持电子和空穴的空穴和电子注入和复合; 和b）第一掺杂剂是能够从主体材料中的电子 - 空穴复合接收能量并接受从第二掺杂剂转移的能量的绿色发光有机材料，并且被选择为具有低于或等于 第二掺杂剂材料的带隙能量; c）第二掺杂剂是能够接受主体材料中的电子 - 空穴复合能量的稳定材料，第二掺杂剂被选择为具有低于主体材料的带隙能量的带隙能量，但高于或等于第一掺杂剂 掺杂剂 其中来自第一掺杂剂的发射和来自第二掺杂剂的发射（如果有的话）在OLED器件中的峰值发射小于570nm。

    OLED electron-transporting layer
    10.
    发明申请
    OLED electron-transporting layer 审中-公开
    OLED电子传输层

    公开(公告)号：US20060269782A1

    公开(公告)日：2006-11-30

    申请号：US11136768

    申请日：2005-05-25

    Applicant: Liang-Sheng Liao ,  Scott Conley ,  Lelia Cosimbescu ,  Viktor Jarikov

    Inventor： Liang-Sheng Liao ,  Scott Conley ,  Lelia Cosimbescu ,  Viktor Jarikov

    IPC: H01L51/54 ,  H05B33/12

    CPC classification number: H01L51/0054 ,  H01L51/0052 ,  H01L51/0058 ,  H01L51/0059 ,  H01L51/0062 ,  H01L51/0081 ,  H01L51/0084 ,  H01L51/0085 ,  H01L51/0089 ,  H01L51/5048 ,  H01L51/5052 ,  H01L2251/308

    Abstract: An organic light-emitting device (OLED) includes an anode, a cathode, and a light-emitting layer disposed between the anode and the cathode, wherein the light-emitting layer includes a dominant host and a dopant. The device also includes an electron-transporting layer disposed in direct contact with the light-emitting layer on the cathode side, wherein the electron-transporting layer includes an electron-transporting material having the same chromophore as that of the dominant host in the light-emitting layer, wherein the electron-transporting material constitutes more than 50% by volume of the electron-transporting layer, and wherein the electron-transporting material has a greater reduction potential than that of the dominant host in the light-emitting layer.

    Abstract translation: 有机发光器件（OLED）包括阳极，阴极和设置在阳极和阴极之间的发光层，其中发光层包括显性主体和掺杂剂。 该装置还包括与阴极侧的发光层直接接触的电子传输层，其中电子传输层包括具有与发光层中的主导体相同的发色团的电子传输材料， 其中所述电子传输材料构成所述电子传输层的体积的50体积％以上，并且所述电子传输材料具有比所述发光层中的所述主体的还原电位大的还原电位。

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