Ligands for semiconductor nanocrystals

    公开(公告)号:US09759727B2

    公开(公告)日:2017-09-12

    申请号:US13069458

    申请日:2011-03-23

    Abstract: In this invention, polyimidazole ligands (PILs) incorporating pendant imidazole moieties for nanocrystal binding and either sulfonatebetaine, carboxybetaine, or phosphocholinebetaine moieties for water-solubilization have been developed. Greatly enhanced stability of nanocrystals (both over time and in wide pH range) was achieved by incorporating multi-dentate imidazole moieties which provide strong coordination of the ligand to the nanocrystal surface and prevent aggregation of nanocrystals. Synthesis of betaine PILs was developed by modifying the synthesis of recently developed PEG containing poly imidazole ligands (PEG PILs). These nanocrystals are compact, water soluble, and biocompatible.

    Preparation method of superabsorbent polymer
    5.
    发明授权
    Preparation method of superabsorbent polymer 有权
    超吸收聚合物的制备方法

    公开(公告)号:US09029480B2

    公开(公告)日:2015-05-12

    申请号:US13824970

    申请日:2011-11-28

    Abstract: The present invention relates to a preparation method of a superabsorbent polymer, and specifically to a method of preparing a superabsorbent polymer including the steps of: preparing a hydrous gel phase polymer by thermal polymerizing or photo-polymerizing a monomer composition including a water-soluble ethylene-based unsaturated monomer and a polymerization initiator; drying the hydrous gel phase polymer; milling the dried polymer; classifying the milled hydrous gel phase polymer into two or more grades by particle size; adding a surface cross-linking agent to each hydrous gel phase polymer classified into two or more grades; and carrying out a surface cross-linking reaction of the hydrous gel phase polymer to which the surface cross-linking agent is added.

    Abstract translation: 本发明涉及超吸收性聚合物的制备方法,具体涉及一种制备超吸收性聚合物的方法,包括以下步骤:通过热聚合或光聚合包含水溶性乙烯的单体组合物制备含水凝胶相聚合物 的不饱和单体和聚合引发剂; 干燥含水凝胶相聚合物; 研磨干燥聚合物; 将研磨的含水凝胶相聚合物通过粒度分级成两个或更多个等级; 向分级为两个或更多个等级的每个含水凝胶相聚合物加入表面交联剂; 并进行加入表面交联剂的含水凝胶相聚合物的表面交联反应。

    Semiconductor device and method of manufacturing the same
    8.
    发明授权
    Semiconductor device and method of manufacturing the same 有权
    半导体装置及其制造方法

    公开(公告)号:US08847411B2

    公开(公告)日:2014-09-30

    申请号:US13616314

    申请日:2012-09-14

    Applicant: Duk Sun Han

    Inventor: Duk Sun Han

    Abstract: A semiconductor device and a method of manufacturing the same are provided. The device includes first and second line pattern units configured to extend substantially parallel to one another in a first direction and alternately disposed such that end portions of the first and second line pattern units are arranged in a diagonal direction, third and fourth pattern units configured to respectively extend from the end portions of the first and second line pattern units in a second direction crossing the first direction, first contact pad units respectively formed in the third line pattern units disposed a first distance from the end portions of the first line pattern units, and fourth contact pad units respectively formed in the fourth line pattern units disposed a second distance from the end portions of the second line pattern units. Here, the second distance is different from the first distance.

    Abstract translation: 提供半导体器件及其制造方法。 该装置包括第一和第二线图案单元,其被配置为在第一方向上基本上彼此平行地延伸,并且交替地布置成使得第一和第二线图案单元的端部沿对角线方向布置,第三和第四图案单元被配置为 分别从与第一方向交叉的第二方向从第一和第二线状图案单元的端部延伸出来的第一接触垫单元分别形成在与第一线图案单元的端部第一距离的第三线图案单元中, 以及第四接触垫单元,其分别形成在与第二线图案单元的端部相距第二距离的第四线图案单元中。 这里,第二距离与第一距离不同。

    Multi-layered paper coating latex having high swelling and contraction property, method for preparing the same, and paper coating composition containing the same
    9.
    发明授权
    Multi-layered paper coating latex having high swelling and contraction property, method for preparing the same, and paper coating composition containing the same 有权
    具有高膨胀和收缩性能的多层纸涂布胶乳,其制备方法和含有它们的纸涂料组合物

    公开(公告)号:US08674000B2

    公开(公告)日:2014-03-18

    申请号:US11977157

    申请日:2007-10-23

    Abstract: Disclosed are paper coating latex, a method for preparing the same, and paper coating composition containing the same, characterized in that in the paper coating latex having a core-shell structure, the core is formed by the polymerization of monomer mixtures comprising 5 to 10 weight parts of ethylene unsaturated acid based on 100 weight parts of the core, wherein the amount of ethylene unsaturated acid in the shell is less than that in the core, and the shell has glass transition temperature up to room temperature, lower than that of the core. The present invention has an effect of providing a high quality matte coated paper that has excellent printability such as ink drying rate, adhesion, etc., as well as low white paper gloss and improved print gloss by coating paper coating composition containing multi-layered paper coating latex having high swelling and contraction property on paper.

    Abstract translation: 公开了纸涂布胶乳及其制备方法,以及含有该涂料组合物的纸涂料组合物,其特征在于,在具有核 - 壳结构的纸涂布胶乳中,芯通过包含5至10个 重量份的基于100重量份芯的乙烯不饱和酸,其中壳中的乙烯不饱和酸的量小于芯中的乙烯不饱和酸的量,并且壳的玻璃化转变温度高达室温,低于 核心。 本发明的效果是通过涂布含有多层纸的纸涂料组合物,提供具有优异的可印刷性的高质量无光泽涂布纸,例如油墨干燥速度,粘合性等,以及低白皮书光泽度和改善的印刷光泽度 在纸上具有高膨胀和收缩性能的涂层胶乳。

    POLYMERIZATION REACTOR FOR PRODUCING A SUPER ABSORBENT POLYMER AND METHOD FOR PRODUCING A SUPER ABSORBENT POLYMER USING THE POLYMERIZATION REACTOR
    10.
    发明申请
    POLYMERIZATION REACTOR FOR PRODUCING A SUPER ABSORBENT POLYMER AND METHOD FOR PRODUCING A SUPER ABSORBENT POLYMER USING THE POLYMERIZATION REACTOR 有权
    用于生产超吸收聚合物的聚合反应器和使用聚合反应器生产超吸收性聚合物的方法

    公开(公告)号:US20120108695A1

    公开(公告)日:2012-05-03

    申请号:US13382018

    申请日:2010-06-22

    Abstract: The present invention provides a polymerization reactor for producing a super absorbent polymer comprising: a reaction unit; a monomer composition supply unit being connected to the reaction unit and supplying a monomer composition solution containing a monomer, a photoinitiator, and a solvent; an agitating shaft extended in the reaction unit from one end of the reaction unit connected to the monomer composition supply unit to the other end of the reaction unit; a plurality of agitating blades installed around the agitating shaft; and a light irradiation unit providing light to the monomer composition solution furnished from the monomer composition supply unit, and a method of producing super absorbent polymers by using the same.

    Abstract translation: 本发明提供了一种用于生产高吸水性聚合物的聚合反应器,包括:反应单元; 单体组合物供给单元与反应单元连接并供给含有单体,光引发剂和溶剂的单体组合物溶液; 在反应单元中从连接到单体组合物供应单元的反应单元的一端延伸到反应单元的另一端的搅拌轴; 安装在搅拌轴周围的多个搅拌叶片; 以及向由单体组合物供给单元提供的单体组合物溶液提供光的光照射单元,以及通过使用该单体组合物生产高吸水性聚合物的方法。

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