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    Self assembled organic nanocrystal superlattices
    1.
    发明授权
    Self assembled organic nanocrystal superlattices 有权
    自组装有机纳米晶体超晶格

    公开(公告)号：US07097902B2

    公开(公告)日：2006-08-29

    申请号：US10744539

    申请日：2003-12-22

    申请人： Thomas N. Blanton ,  Ramesh Jagannathan ,  Seshadri Jagannathan ,  Rajesh V. Mehta

    发明人： Thomas N. Blanton ,  Ramesh Jagannathan ,  Seshadri Jagannathan ,  Rajesh V. Mehta

    IPC分类号： B32B5/16

    CPC分类号： C30B29/54 ,  C30B29/68 ,  Y10T428/25 ,  Y10T428/258 ,  Y10T428/26 ,  Y10T428/263 ,  Y10T428/265 ,  Y10T428/268 ,  Y10T428/31504

    摘要： A process for the preparation of a self assembled superlattice thin film of organic nanocrystal particles is described comprising: (i) combining one or more functional organic material to be precipitated as nanocrystal particles and one or more surface active material in a compressed CO2 phase with a density of at least 0.1 g/cc, where the functional material is substantially insoluble in the compressed CO2 in the absence of the surfactant, the surfactant comprises a compressed CO2-philic portion and a functional material-philic portion, and the compressed CO2 phase, functional material and surfactant interact to form an aggregated system having a continuous compressed CO2 phase and a plurality of aggregates comprising surfactant and functional material molecules of average diameter less than 50 nanometers dispersed therein; (ii) rapidly depressurizing the compressed CO2 phase thereby precipitating the dispersed functional and surfactant materials in the form of composite organic nanocrystals of average diameter less than 50 nanometers, and (iii) depositing the organic nanocrystals on a substrate surface, wherein the organic nanocrystals form a thin film having an ionic content of less than 0.001 M in equivalent sodium chloride concentration on the substrate surface, and the thin film exhibits a long range periodicity in the arrangement of the organic nanocrystals in a self assembled superlattice structure, as evidenced by x-ray diffraction.

    摘要翻译： 描述了制备有机纳米晶体颗粒的自组装超晶格薄膜的方法，其包括：（i）将一种或多种作为纳米晶体颗粒和一种或多种表面活性材料沉淀的官能有机材料合并在压缩的CO 密度为至少0.1g / cc的2相，其中功能材料在不存在表面活性剂的情况下基本上不溶于压缩的CO 2，表面活性剂包括压缩的CO 2， SUB> 2亲水部分和功能材料亲水部分，并且压缩的CO 2相，功能材料和表面活性剂相互作用以形成具有连续压缩CO 2的聚集体系， 包含平均直径小于50纳米的表面活性剂和功能材料分子的多个聚集体分散在其中; （ii）使压缩的CO 2相快速减压，从而使平均直径小于50纳米的复合有机纳米晶体形式的分散的功能性和表面活性剂材料沉淀，和（iii）将有机纳米晶体沉积在 衬底表面，其中有机纳米晶体形成离子含量小于0.001M的氯化钠浓度在基材表面上的薄膜，并且薄膜在有机纳米晶体在自组装中的布置方面表现出长程周期性 超晶格结构，如x射线衍射所证明的。

    Process for the preparation of high chloride emulsions containing iodide
    5.
    发明授权
    Process for the preparation of high chloride emulsions containing iodide 失效
    制备含有碘化物的高氯化物乳液的方法

    公开(公告)号：US06265145B1

    公开(公告)日：2001-07-24

    申请号：US09475405

    申请日：1999-12-30

    申请人： Rajesh V. Mehta ,  Jerzy A. Budz ,  Jess B. Hendricks, III ,  Heinz E. Stapelfeldt ,  Seshadri Jagannathan ,  Ramesh Jagannathan

    发明人： Rajesh V. Mehta ,  Jerzy A. Budz ,  Jess B. Hendricks, III ,  Heinz E. Stapelfeldt ,  Seshadri Jagannathan ,  Ramesh Jagannathan

    IPC分类号： G03C1005

    CPC分类号： G03C1/015 ,  G03C1/035 ,  G03C1/07 ,  G03C2001/03517 ,  G03C2200/01

    摘要： A process for the preparation of a radiation-sensitive silver halide emulsion comprised of high chloride cubical silver halide grains containing from 0.05 to 3 mole percent iodide, based on total silver, where the iodide is incorporated in the grains in a controlled, non-uniform distribution forming a core containing at least 50 percent of total silver, an iodide free surface shell having a thickness of greater than 50 Å, and a sub-surface shell that contains a maximum iodide concentration is disclosed, the process comprising: (a) providing in a stirred reaction vessel a dispersing medium and host high chloride silver halide cubical grains comprising a speed enhancing amount of iodide, and (b) precipitating silver halide onto the host grains by introducing at least a silver salt solution into the dispersing medium at a rate such that the normalized molar addition rate, Rn, is above 3.0×10−2 min−1, Rn satisfying the formula: Rn=[Qf×Cf]/M where Qf is the volumetric rate of addition, in L/min, of silver salt solution into the reaction vessel; Cf is the concentration, in moles/L, of the silver salt solution; and M is total moles of silver halide in the host grains in the reaction vessel at the precise moment of addition of the silver salt solution. In a further aspect, this invention is directed towards a photographic recording element comprising a support and at least one light sensitive silver halide emulsion layer comprising silver halide grains prepared as described above. The advantages of the invention are generally accomplished in accordance with the discovery that when the exterior portion of profiled silver iodochloride grains are grown under specific conditions of high molar addition rates, iodochloride emulsions of enhanced sensitivity and photographic curve shape are produced, as speed can be increased while keeping fog to a low level.

    摘要翻译： 一种用于制备辐射敏感的卤化银乳剂的方法，其包含基于总银含有0.05至3摩尔％碘化物的高氯化物立方体卤化银颗粒，其中碘化物以受控的，不均匀的方式掺入颗粒中 分布形成包含总银的至少50％，厚度大于Å的无碘化物表面壳和含有最大碘化物浓度的亚表面壳的芯，该方法包括：（a）提供 在搅拌的反应容器中，分散介质和包含加速量的碘化物的高氯化物卤化银立方晶粒和（b）通过将至少一种银盐溶液以一定速率引入到分散介质中而将卤化银沉淀到主体颗粒上 使得归一化的摩尔加成速率Rn高于3.0×10 -2分钟-1，Rn满足下式：其中Qf是硅的体积加入速率（L / min） 将盐溶液加入到反应容器中; Cf是银盐溶液的浓度，以摩尔/ L表示; 并且M是在银盐溶液的添加的精确时刻反应容器中的主体颗粒中卤化银的总摩尔数。 在另一方面，本发明涉及一种照相记录元件，其包括载体和包含如上所述制备的卤化银颗粒的至少一种感光卤化银乳剂层。 本发明的优点通常根据以下发现来实现：当异氰酸银碘化银颗粒的外部部分在高摩尔添加速率的特定条件下生长时，产生增强灵敏度的碘氯化物乳剂和照相曲线形状，因为速度可以 在将雾保持在低水平的同时增加。

    Process for the deposition of uniform layer of particulate material
    8.
    发明授权
    Process for the deposition of uniform layer of particulate material 失效
    沉积均匀颗粒材料层的工艺

    公开(公告)号：US07223445B2

    公开(公告)日：2007-05-29

    申请号：US10815026

    申请日：2004-03-31

    申请人： Rajesh V. Mehta ,  Ramesh Jagannathan ,  Seshadri Jagannathan ,  Kelly S. Robinson ,  Karen L. Pond ,  Bradley M. Houghtaling

    发明人： Rajesh V. Mehta ,  Ramesh Jagannathan ,  Seshadri Jagannathan ,  Kelly S. Robinson ,  Karen L. Pond ,  Bradley M. Houghtaling

    IPC分类号： B05D1/06 ,  B05D1/12

    CPC分类号： B05D1/26 ,  B05D1/007 ,  B05D1/06 ,  B05D1/12 ,  B05D2401/32 ,  B05D2401/90 ,  G03C1/74

    摘要： A process for the deposition of particulate material of a desired substance on a surface includes: (i) charging a particle formation vessel with a compressed fluid; (ii) introducing into the particle formation vessel a first feed stream comprising a solvent and the desired substance dissolved therein and a second feed stream comprising the compressed fluid, wherein the desired substance is less soluble in the compressed fluid relative to its solubility in the solvent and the solvent is soluble in the compressed fluid, and wherein the first feed stream is dispersed in the compressed fluid, allowing extraction of the solvent into the compressed fluid and precipitation of particles of the desired substance; (iii) exhausting compressed fluid, solvent and the desired substance from the particle formation vessel at a rate substantially equal to the rate of addition of such components to the vessel in step (ii) through a restrictive passage to a lower pressure whereby the compressed fluid is transformed to a gaseous state and a flow of particles of the desired substance is formed; and (iv) exposing a receiver surface to the exhausted flow of particles of the desired substance and depositing a uniform layer of particles on the receiver surface.

    摘要翻译： 将所需物质的颗粒材料沉积在表面上的方法包括：（i）用压缩流体填充颗粒形成容器; （ii）向颗粒形成容器中引入包含溶剂和所需物质溶解在其中的第一进料流和包含压缩流体的第二进料流，其中所需物质相对于其在溶剂中的溶解度较不溶于压缩流体 并且溶剂可溶于压缩流体中，并且其中第一进料流分散在压缩流体中，允许将溶剂萃取到压缩流体中并沉淀所需物质的颗粒; （iii）通过限制性通道将压缩流体，溶剂和所需物质从所述颗粒形成容器排出，其速率基本上等于步骤（ii）中通过限制性通道将这些组分加入到容器中的速率，由此压缩流体 转化为气态，形成所需物质的颗粒流; 和（iv）将接收器表面暴露于所需物质的排出的颗粒流中，并在接收器表面上沉积均匀的颗粒层。

    Method of forming a color filter
    9.
    发明授权
    Method of forming a color filter 失效
    形成滤色器的方法

    公开(公告)号：US06863368B2

    公开(公告)日：2005-03-08

    申请号：US10460245

    申请日：2003-06-12

    申请人： Sridhar Sadasivan ,  Ramesh Jagannathan ,  Seshadri Jagannathan ,  Rajesh V. Mehta ,  David J. Nelson ,  Glen C. Irvin, Jr.

    发明人： Sridhar Sadasivan ,  Ramesh Jagannathan ,  Seshadri Jagannathan ,  Rajesh V. Mehta ,  David J. Nelson ,  Glen C. Irvin, Jr.

    IPC分类号： B41J2/175 ,  B05B15/04 ,  B41J2/01 ,  B41J2/015 ,  B41J2/04 ,  B41J2/21 ,  B41J2/165

    CPC分类号： B41J2/04 ,  B41J2/211

    摘要： A method of forming a color filter and a color filter are provided. The method includes providing a mixture of a color filter material and a compressed fluid; providing a substrate; providing a printhead adapted to deliver the mixture of the color filter material and the compressed fluid toward the substrate; positioning the printhead in a predetermined location relative to the substrate; and ejecting the mixture of the color filter material and the compressed fluid through the printhead toward the substrate, wherein the color filter material becomes free of the compressed fluid prior to the color filter material contacting the substrate at the predetermined location.

    摘要翻译： 提供了形成滤色器和滤色器的方法。 该方法包括提供滤色器材料和压缩流体的混合物; 提供衬底; 提供适于将滤色器材料和压缩流体的混合物输送到基板的打印头; 将打印头相对于基板定位在预定位置; 并且通过打印头将滤色器材料和压缩流体的混合物喷射到基板，其中在滤色器材料在预定位置处接触基板之前，滤色器材料变得没有压缩流体。

    Method and apparatus for continuous marking
    10.
    发明授权
    Method and apparatus for continuous marking 有权
    连续标记的方法和装置

    公开(公告)号：US06666548B1

    公开(公告)日：2003-12-23

    申请号：US10287579

    申请日：2002-11-04

    申请人： Sridhar Sadasivan ,  David J. Nelson ,  Seshadri Jagannathan ,  Thomas C. Jackson ,  Glen C. Irvin, Jr. ,  Ramesh Jagannathan ,  Suresh Sunderrajan ,  Rajesh V. Mehta

    发明人： Sridhar Sadasivan ,  David J. Nelson ,  Seshadri Jagannathan ,  Thomas C. Jackson ,  Glen C. Irvin, Jr. ,  Ramesh Jagannathan ,  Suresh Sunderrajan ,  Rajesh V. Mehta

    IPC分类号： B41J202

    CPC分类号： B41J2/09 ,  B41J2/02 ,  B41J2/185 ,  Y10S977/887 ,  Y10S977/932

    摘要： A method and an apparatus for continuously delivering a solvent free marking material to a receiver includes a printhead with a discharge device is provided. The discharge device has an outlet and is in fluid communication with a pressurized reservoir of a thermodynamically stable mixture of a compressed fluid solvent and a marking material. The marking material becomes free of the solvent after ejected through the discharge device. A deflection mechanism is positioned relative to the outlet of the discharge device. The deflection mechanism is adapted to selectively deflect the marking material away from a first path to a second path. A gutter is positioned at an end of the first path, and the solvent free marking material is collected by the gutter. A receiver transporting mechanism is positioned at an end of the second path and the receiver transporting mechanism is adapted to provide a receiver to allow solvent free marking material be deposited on the receiver.

    摘要翻译： 一种用于将无溶剂标记材料连续输送到接收器的方法和设备包括具有放电装置的打印头。 排放装置具有出口并与压缩流体溶剂和标记材料的热力学稳定的混合物的加压储存器流体连通。 在通过排出装置喷射之后，标记材料变得没有溶剂。 偏转机构相对于排出装置的出口定位。 偏转机构适于选择性地使标记材料偏离第一路径到第二路径。 沟槽位于第一路径的末端，无溶剂的标记材料由沟槽收集。 接收器传送机构位于第二路径的一端，并且接收器传送机构适于提供接收器以允许无溶剂的标记材料沉积在接收器上。