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93 条记录 (耗时 0.065 秒)

    Polyhydroxyl-substituted organic molecule sensing method and device
    41.
    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
    42.
    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
    47.
    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。

    Addition polymerizable aromatic sulfonium salts and polymers thereof
    49.
    发明授权
    Addition polymerizable aromatic sulfonium salts and polymers thereof 失效
    加成可聚合芳族锍盐及其聚合物

    公开(公告)号：US4528384A

    公开(公告)日：1985-07-09

    申请号：US164744

    申请日：1980-06-30

    申请人： Donald L. Schmidt ,  Thomas C. Klingler ,  Ritchie A. Wessling

    发明人： Donald L. Schmidt ,  Thomas C. Klingler ,  Ritchie A. Wessling

    IPC分类号： C08F2/28 ,  C08F12/32 ,  C07D333/16 ,  B05D1/36

    CPC分类号： C08F2/28 ,  C08F12/32

    摘要： Novel polymers having high activity as cationic surface-active agents are prepared by the addition polymerization of ethylenically unsaturated aromatic sulfonium salts, e.g., ##STR1## When such polymers are heated and/or dried, they are irreversibly converted to inert, nonionic residues without the elimination of odorous by-products.The novel sulfonium salt polymers having relatively low molecular weight and low charge density are particularly useful as surfactants or emulsifiers in the emulsion polymerization of ethylenically unsaturated monomers such as styrene, butadiene, alkyl acrylates and the like. The polymers having high molecular weight and high charge density are useful as thickeners and flocculants.

    摘要翻译： 通过烯键式不饱和芳族锍盐的加成聚合制备具有高活性的阳离子表面活性剂的新型聚合物，例如，当加热和/或干燥这些聚合物时，它们不可逆地转化为惰性的非离子残余物， 消除恶臭副产品。 具有相对低分子量和低电荷密度的新型锍盐聚合物在烯属不饱和单体如苯乙烯，丁二烯，丙烯酸烷基酯等的乳液聚合中特别可用作表面活性剂或乳化剂。 具有高分子量和高电荷密度的聚合物可用作增稠剂和絮凝剂。

    Novel isothiouronium salts
    50.
    发明授权
    Novel isothiouronium salts 失效
    新型异硫脲盐

    公开(公告)号：US4214096A

    公开(公告)日：1980-07-22

    申请号：US48954

    申请日：1979-06-15

    申请人： Thomas C. Klingler ,  Ritchie A. Wessling ,  Dale S. Gibbs

    发明人： Thomas C. Klingler ,  Ritchie A. Wessling ,  Dale S. Gibbs

    IPC分类号： B01F17/00 ,  C07C335/32 ,  C09D5/44 ,  C07C157/02 ,  C07C157/05 ,  C07C161/00

    CPC分类号： C07C335/32 ,  B01F17/0057 ,  C09D5/448

    摘要： Novel isothiouronium salts are herein described which correspond to the formula ##STR1## wherein R and R' are each independently hydrocarbyl or inertly-substituted hydrocarbyl of at least 4 carbon atoms; R.sub.1 -R.sub.4 are each independently alkyl or hydroxyalkyl of 1 to 4 carbon atoms, or R.sub.1 and R.sub.3 are joined to form a 5- or 6-membered heterocyclic ring; n is 0 or 1; and A.sup..crclbar. is an inert neutralizing anion. The isothiouronium salts are surprisingly effective dispersing agents and are used in forming electrodepositable latexes.

    摘要翻译： 本文描述了新的异硫脲鎓盐，其对应于下式：其中R和R'各自独立地为至少4个碳原子的烃基或惰性取代的烃基; R 1 -R 4各自独立地为具有1至4个碳原子的烷基或羟烷基，或者R 1和R 3连接形成5-或6-元杂环; n为0或1; 而A（ - ）是惰性中和阴离子。 异硫脲盐是惊人的有效的分散剂，并用于形成可电沉积胶乳。