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    Polyhydroxyl-substituted organic molecule sensing method and device
    23.
    发明授权
    Polyhydroxyl-substituted organic molecule sensing method and device 有权
    多羟基取代有机分子感应方法及装置

    公开(公告)号：US06653141B2

    公开(公告)日：2003-11-25

    申请号：US09731325

    申请日：2000-12-05

    申请人： Bakthan Singaram ,  Ritchie A. Wessling

    发明人： Bakthan Singaram ,  Ritchie A. Wessling

    IPC分类号： G01N2164

    CPC分类号： G01N21/6408 ,  Y10T436/144444

    摘要： The present invention concerns an improved optical method and optical sensing device for determining the levels of polyhydroxyl-substituted organic molecules in vitro in aqueous or organic media. Specifically, a dye is combined with an conjugated nitrogen-containing aromatic heterocyclic aromatic boronic acid-substituted bis-onium compound in the presence of a sugar, such as fructose or glucose. The viologens are preferred as the aromatic conjugated nitrogen containing boronic acid substituted compounds. The method is useful to determine sugar levels in fermentation and process streams.

    摘要翻译： 本发明涉及用于在水性或有机介质中体外测定多羟基取代的有机分子水平的改进​​的光学方法和光学感测装置。 具体地说，在糖如果糖或葡萄糖的存在下，将染料与共轭含氮芳族杂环芳族硼酸取代的双鎓化合物组合。 紫罗兰是优选的含芳族共轭氮的硼酸取代的化合物。 该方法可用于测定发酵和过程流中的糖含量。

    Stable concentrates and emulsions of water-insoluble organic pesticides
    24.
    发明授权
    Stable concentrates and emulsions of water-insoluble organic pesticides 失效
    水不溶性有机农药的稳定浓缩物和乳液

    公开(公告)号：US5508035A

    公开(公告)日：1996-04-16

    申请号：US145055

    申请日：1993-10-27

    申请人： Ritchie A. Wessling ,  Dale M. Pickelman ,  Dennis G. Wujek

    发明人： Ritchie A. Wessling ,  Dale M. Pickelman ,  Dennis G. Wujek

    IPC分类号： A01N25/10 ,  A01N25/30 ,  A01N25/04 ,  A01N25/08 ,  A01N25/24

    CPC分类号： A01N25/30 ,  A01N25/10

    摘要： Stable emulsions of water-insoluble organic pesticides are formed by mixing the pesticide with an aqueous dispersion of a graft copolymer comprising a reactive polymeric surfactant base polymer and a nonionic hydrophobic grafted composition. The graft copolymer spontaneously absorbs organic pesticides with low water solubility upon simple mixing. The resulting product is much more stable to coalescence than emulsions made with conventional or polymeric surfactants.Emulsifiable organic based concentrates, having a continuous oil phase, which are formed from admixtures of pesticidally active water-insoluble organic pesticides with graft copolymers can be diluted with or in water, thus, inverting the continuous oil phase to stable water based oil-in-water emulsions of the active pesticide.

    摘要翻译： 通过将农药与包含反应性聚合物表面活性剂基础聚合物和非离子疏水接枝组合物的接枝共聚物的水分散体混合而形成水不溶性有机农药的稳定乳液。 接枝共聚物在简单混合时自发吸收水溶性低的有机农药。 与用常规或聚合物表面活性剂制成的乳液相比，得到的产物比聚结更稳定。 由杀虫活性水不溶性有机农药与接枝共聚物的混合物形成的具有连续油相的可乳化有机基浓缩物可以用水稀释，也可以在水中稀释，从而将连续油相转化为稳定的水基油 - 活性农药水乳剂。

    Preparation of asymmetric membranes by the solvent extraction of polymer components from polymer blends
    29.
    发明授权
    Preparation of asymmetric membranes by the solvent extraction of polymer components from polymer blends 失效
    通过聚合物共混物溶剂萃取聚合物组分制备不对称膜

    公开(公告)号：US4868222A

    公开(公告)日：1989-09-19

    申请号：US67321

    申请日：1987-06-29

    申请人： Chieh-Chun Chau ,  Ritchie A. Wessling

    发明人： Chieh-Chun Chau ,  Ritchie A. Wessling

    IPC分类号： B01D67/00 ,  C08J9/00 ,  C08J9/26

    CPC分类号： B01D67/0093 ,  B01D67/003 ,  B01D69/02 ,  C08J9/00 ,  C08J9/26 ,  B01D2323/30 ,  B01D2325/022

    摘要： Asymmetric membranes are prepared by selectively treating a major surface of an incompatible polymer blend prepared by melt blending having at least one extractable polymer component and then contacting the polymer blend with a solvent to extract the extractable polymer component. The treated surface becomes the dense layer of the membrane. The major surface is treated by crosslinking, by contacting the surface with a crosslinking agent which is subsequently cured, or by contacting the surface with an agent which reacts with groups on the surface and imparts a polar character to it.

    摘要翻译： 通过选择性地处理由具有至少一种可提取聚合物组分的熔融共混制备的不相容的聚合物共混物的主表面，然后使聚合物共混物与溶剂接触以提取可萃取的聚合物组分来制备不对称膜。 被处理的表面变成膜的致密层。 主表面通过交联处理，通过使表面与随后固化的交联剂接触，或通过使表面与与表面上的基团反应并赋予其极性特性的试剂接触来处理。