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    Composition of an active component and free flowing particles of a polysaccharide matrix having significantly improved water dispersibility and stability in aqueous solutions
    1.
    发明授权
    Composition of an active component and free flowing particles of a polysaccharide matrix having significantly improved water dispersibility and stability in aqueous solutions 失效
    活性组分和自由流动的多糖基质颗粒的组成，其具有显着改善的水分散性和在水溶液中的稳定性

    公开(公告)号：US06096345A

    公开(公告)日：2000-08-01

    申请号：US10642

    申请日：1998-01-22

    申请人： Kolazi S. Narayanan ,  Ronald H. Goehner, Jr. ,  James F. Curry

    发明人： Kolazi S. Narayanan ,  Ronald H. Goehner, Jr. ,  James F. Curry

    IPC分类号： A61K9/16 ,  A01N25/14 ,  A61K9/14 ,  A61K47/32

    CPC分类号： A61K9/1635 ,  A61K9/1652 ,  Y10T428/2982

    摘要： This invention relates to a composition containing an active chemical and a particulate polysaccharide matrix having improved water dispersibility and dispersion stability in aqueous solutions by the incorporation of a copolymer of a N-vinyl lactam monomer and a hydrophobic comonomer. The improved properties of the matrix promotes its use as a dispersing agent in a wide variety of formulations where soil and skin substantivity or sustained release of the active chemical is required, as in pharmaceutical, pre- and post-emergent agrochemical and cosmetic formulations. The invention also pertains to the preparation and use of formulations based on the use of polysaccharide/copolymer matrix of this invention.

    摘要翻译： 本发明涉及一种含有活性化学物质和多糖基质颗粒的组合物，其通过引入N-乙烯基内酰胺单体和疏水共聚单体的共聚物，在水溶液中具有改善的水分散性和分散稳定性。 基质的改进性能促进其作为分散剂用于各种制剂中，其中需要土壤和皮肤的亲和力或活性化学品的持续释放，如在药物，芽前和芽后农药和化妆品制剂中。 本发明还涉及基于使用本发明的多糖/共聚物基质的制剂的制备和用途。

    Bayard-alpert vacuum gauge with neutralization of x-ray effect
    2.
    发明授权
    Bayard-alpert vacuum gauge with neutralization of x-ray effect 失效
    具有中和X射线效应的Bayard-alpert真空计

    公开(公告)号：US06257069B1

    公开(公告)日：2001-07-10

    申请号：US09194793

    申请日：1998-10-28

    申请人： Howard M. Brady ,  Emil Drubetsky ,  Ronald H. Goehner ,  Bruce R. F. Kendall

    发明人： Howard M. Brady ,  Emil Drubetsky ,  Ronald H. Goehner ,  Bruce R. F. Kendall

    IPC分类号： G01L900

    CPC分类号： G01L21/34 ,  G01L21/32

    摘要： A Bayard-Alpert gas pressure measuring gauge with x-ray effect neutralization comprising collector and shield electrodes that comprise the same substantially inert electrically conductive substances. Said inert substance may be gold or another substance from the group consisting of platinum and rhodium, and mixtures thereof, and alloys comprising gold, platinum or rhodium; or said substance may be selected from the group consisting of the oxides of indium, chromium, vanadium and tin, mixtures thereof, and alloys comprising one of these. An electrical potential is applied to the shield that is more negative than the potential applied to the collector, said potential on the shield being in the range from about zero volts to about −50 volts when the collector is operated at a positive potential. Said negative potential with respect to the collector enhances the reverse x-ray effect for cancellation of the forward x-ray effect in the gauge. The gauge may also comprise a modified collector geometry to further enhance the reverse x-ray effect to achieve neutralization of the total x-ray effect. A method for neutralization of the x-ray effect by modulating the shield potential is also disclosed.

    摘要翻译： 具有x射线效应中和的Bayard-Alpert气体压力测量计包括收集器和屏蔽电极，其包含相同的基本惰性的导电物质。 所述惰性物质可以是金或来自铂和铑的其它物质及其混合物，以及包含金，铂或铑的合金; 或所述物质可以选自铟，铬，钒和锡的氧化物，其混合物和包含这些之一的合金。 电势被施加到比施加到集电极的电位更负的屏蔽上，当集电极处于正电位时，屏蔽上的电位在约零伏至约-50伏的范围内。 相对于收集器的所述负电位增强反向X射线效应以消除量规中的前X射线效应。 量规还可以包括改进的收集器几何形状，以进一步增强反向x射线效应以实现总X射线效应的中和。 还公开了通过调制屏蔽电位来中和x射线效应的方法。