NANOPARTICLES MODIFIED WITH MULTIPLE ORGANIC ACIDS
    21.
    发明申请
    NANOPARTICLES MODIFIED WITH MULTIPLE ORGANIC ACIDS 失效
    用多种有机酸改性的纳米颗粒

    公开(公告)号:US20070098990A1

    公开(公告)日:2007-05-03

    申请号:US11120650

    申请日:2005-05-03

    Abstract: Surface-modified nanoparticles of boehmite, and methods for preparing the same. Aluminum oxyhydroxide nanoparticles are surface modified by reaction with selected amounts of organic acids. In particular, the nanoparticle surface is modified by reactions with two or more different carboxylic acids, at least one of which is an organic carboxylic acid. The product is a surface modified boehmite nanoparticle that has an inorganic aluminum oxyhydroxide core, or part aluminum oxyhydroxide core and a surface-bonded organic shell. Organic carboxylic acids of this invention contain at least one carboxylic acid group and one carbon-hydrogen bond. One embodiment of this invention provides boehmite nanoparticles that have been surface modified with two or more acids one of which additional carries at least one reactive functional group. Another embodiment of this invention provides boehmite nanoparticles that have been surface modified with multiple acids one of which has molecular weight or average molecular weight greater than or equal to 500 Daltons. Yet, another embodiment of this invention provides boehmite nanoparticles that are surface modified with two or more acids one of which is hydrophobic in nature and has solubility in water of less than 15 by weight. The products of the methods of this invention have specific useful properties when used in mixture with liquids, as filler in solids, or as stand-alone entities.

    Abstract translation: 勃姆石的表面改性纳米颗粒及其制备方法。 羟基氧化铝纳米颗粒通过与选定量的有机酸反应进行表面改性。 特别地,通过与两种或多种不同羧酸的反应来修饰纳米颗粒表面,其中至少一种是有机羧酸。 该产品是具有无机氢氧化铝核心或部分羟基氧化铝核心和表面键合有机壳体的表面改性勃姆石纳米颗粒。 本发明的有机羧酸含有至少一个羧酸基和一个碳 - 氢键。 本发明的一个实施方案提供已经用两种或多种酸进行表面改性的勃姆石纳米颗粒,其中一种还含有至少一个反应性官能团。 本发明的另一个实施方案提供已经用多种酸进行表面改性的勃姆石纳米颗粒,其中一种具有大于或等于500道尔顿的分子量或平均分子量。 然而,本发明的另一个实施方案提供了用两种或更多种酸进行表面改性的勃姆石纳米粒子,其中一种酸性质是疏水性的,并且在水中的溶解度小于15重量%。 当与液体混合使用时,本发明方法的产品具有特定的有用特性,作为固体中的填料或作为独立实体。

    Oxidation catalysts comprising metal exchanged hexaaluminate wherein the metal is Sr, Pd, La, and/or Mn
    25.
    发明授权
    Oxidation catalysts comprising metal exchanged hexaaluminate wherein the metal is Sr, Pd, La, and/or Mn 失效
    包含金属交换六铝酸盐的氧化催化剂,其中金属是Sr,Pd,La和/或Mn

    公开(公告)号:US07442669B2

    公开(公告)日:2008-10-28

    申请号:US10382132

    申请日:2003-03-05

    Abstract: The present invention provides metal-exchanged hexaaluminate catalysts that exhibit good catalytic activity and/or stability at high temperatures for extended periods with retention of activity as combustion catalysts, and more generally as oxidation catalysts, that make them eminently suitable for use in methane combustion, particularly for use in natural gas fired gas turbines. The hexaaluminate catalysts of this invention are of particular interest for methane combustion processes for minimization of the generation of undesired levels (less than about 10 ppm) of NOx species. Metal exchanged hexaaluminate oxidation catalysts are also useful for oxidation of volatile organic compounds (VOC), particularly hydrocarbons. Metal exchanged hexaaluminate oxidation catalysts are further useful for partial oxidation, particularly at high temperatures, of reduced species, particularly hydrocarbons (alkanes and alkenes).

    Abstract translation: 本发明提供了金属交换的六铝酸盐催化剂,其在高温下长时间显示出良好的催化活性和/或稳定性,同时保留作为燃烧催化剂的活性,更一般地,其作为氧化催化剂,使其非常适合用于甲烷燃烧, 特别适用于天然气燃气轮机。 本发明的六铝酸盐催化剂对于最小化NOx物质的不期望水平(小于约10ppm)的产生的甲烷燃烧过程是特别有意义的。 金属交换的六铝酸盐氧化催化剂也可用于挥发性有机化合物(VOC),特别是烃的氧化。 金属交换的六铝酸盐氧化催化剂还可用于部分氧化,特别是在高温下的还原物质,特别是烃(烷烃和烯烃)。

    Architecture for unified messaging
    26.
    发明授权
    Architecture for unified messaging 有权
    统一消息传递架构

    公开(公告)号:US07327836B2

    公开(公告)日:2008-02-05

    申请号:US10151486

    申请日:2002-05-20

    CPC classification number: H04M3/5307 H04M3/53325 H04M2203/4509

    Abstract: There is disclosed a unified messaging system in which a voice mail domain object comprising a plurality of fields is provided. At least one of such fields is selected to be defined as an open field such that it is accessible to an administration application of the system. The open fields are preferably stored as a voice mail domain summary in the e-mail directory of the unified messaging system.

    Abstract translation: 公开了一种统一的消息系统,其中提供了包括多个字段的语音邮件域对象。 选择这样的字段中的至少一个被定义为打开的字段,使得它可以被系统的管理应用访问。 打开的字段优选地作为语音邮件域摘要存储在统一消息收发系统的电子邮件目录中。

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