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28 条记录 (耗时 0.022 秒)

    Method for the preparation of active magnesium hydride-magnesium hydrogen storage systems, which reversibly absorb hydrogen
    12.
    发明授权
    Method for the preparation of active magnesium hydride-magnesium hydrogen storage systems, which reversibly absorb hydrogen 失效
    制备活性镁氢镁储存系统的方法，其中可逆的氢吸收氢

    公开(公告)号：US5198207A

    公开(公告)日：1993-03-30

    申请号：US785298

    申请日：1991-10-30

    申请人： Wilfried Knott ,  Klaus-Dieter Klein ,  Gotz Koerner

    发明人： Wilfried Knott ,  Klaus-Dieter Klein ,  Gotz Koerner

    IPC分类号： B01J31/12 ,  B01J23/02 ,  C01B3/00 ,  C01B6/04

    CPC分类号： C01B3/0026 ,  Y02E60/327 ,  Y10S420/90 ,  Y10S502/526

    摘要： A method is disclosed for the preparation of active magnesium hydride-magnesium-hydrogen storage systems, which reversibly absorb hydrogen, with addition of a catalyst for the absorption of hydrogen with the formation of hydride. Magnesium hydride particles.ltoreq.400 .mu.m in diameter are added in an amount of at least 1.2% by weight, based on the magnesium to be hydrogenated, as catalyst during the first hydrogenation to the finely divided magnesium to be hydrogenated. The hydrogenation is carried out at a temperature of .gtoreq.250.degree. C. and a pressure of 0.5 to 5 MPa. The method is carried out with intensive stirring of the material that is being reacted.

    摘要翻译： 公开了一种用于制备活性氢化镁 - 镁 - 氢储存系统的方法，其可逆地吸收氢气，加入催化剂以形成氢化物吸收氢气。 加入直径为400μm的氢化镁颗粒，以加氢镁为至少1.2重量％，在第一次氢化期间作为催化剂加入被细化的被氢化的镁。 氢化在≥250℃的温度和0.5-5MPa的压力下进行。 该方法是在剧烈搅拌下进行反应的材料。

    Process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers and their use
    13.
    发明授权
    Process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers and their use 有权
    用于制备SiOC连接的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物的方法及其用途

    公开(公告)号：US07825209B2

    公开(公告)日：2010-11-02

    申请号：US11956483

    申请日：2007-12-14

    申请人： Wilfried Knott ,  Klaus-Dieter Klein ,  Rüdiger Landers ,  Dagmar Windbiel

    发明人： Wilfried Knott ,  Klaus-Dieter Klein ,  Rüdiger Landers ,  Dagmar Windbiel

    IPC分类号： C08G77/04 ,  C08G77/06 ,  C08G77/08

    CPC分类号： C08G77/46 ,  C08L83/12

    摘要： The invention relates to a process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers having (AB) repeat units, via reaction of one or more polyetherdiols with a stoichiometric excess of α,ω-dihydropolydimethylsiloxanes and at least one tertiary amine as catalyst, which comprises, after completed reaction of the alcohol component, continuing the reaction in the presence of small amounts of water until no remaining ≡Si(H) groups are detectable by a gas-volumetric method.

    摘要翻译： 本发明涉及通过一种或多种聚醚二醇与化学计量过量的α，ω-二氢聚二甲基硅氧烷和至少一种叔胺的反应来制备具有（AB）重复单元的SiOC连接的线性聚二甲基硅氧烷 - 聚氧化烯嵌段共聚物的方法 作为催化剂，其包括在醇组分完全反应之后，在少量水存在下继续反应，直到通过气体 - 体积方法不能检测到剩余的≡Si（H）基团。

    Silanes with hydrophilic groups, their synthesis and use as surfactants in aqueous media
    14.
    发明授权
    Silanes with hydrophilic groups, their synthesis and use as surfactants in aqueous media 失效
    具有亲水基团的硅烷，它们的合成和用作水性介质中的表面活性剂

    公开(公告)号：US06255511B1

    公开(公告)日：2001-07-03

    申请号：US08301372

    申请日：1994-09-06

    申请人： Klaus-Dieter Klein ,  Wilfried Knott ,  Götz Koerner ,  Manfred Krakenberg

    发明人： Klaus-Dieter Klein ,  Wilfried Knott ,  Götz Koerner ,  Manfred Krakenberg

    IPC分类号： C07F708

    CPC分类号： B01F17/0071 ,  C07F7/081

    摘要： Silanes of the general formula are prepared, wherein R1, R2 and R3 in the molecule are the same or different and represent aliphatic or aromatic hydrocarbon groups, R4 is a divalent hydrocarbon group with 4 to 12 carbon atoms and a lateral hydroxyl group, wherein the hydrocarbon group can be interrupted by an ether oxygen, R5 is a hydrophilic, ionic group. A method for synthesizing these compounds is described. The silanes greatly lower the surface tension or aqueous solutions, the surface tension being reduced to values of about 23 mN/m. The silanes are biologically degradable and have pronounced surfactant properties.

    摘要翻译： 制备通式的硅烷，其中分子中的R 1，R 2和R 3相同或不同并且表示脂族或芳族烃基，R 4是具有4至12个碳原子和侧羟基的二价烃基，其中烃 组可以被醚氧中断，R5是亲水的离子基团。 对这些化合物的合成方法进行说明。 硅烷大大降低了表面张力或水溶液，表面张力降低到约23mN / m。 硅烷是生物可降解的并且具有显着的表面活性剂性质。

    Method for the synthesis of silanes or organosilicon hydrides by the reduction of the corresponding silicon halides or organosilicon halides
    15.
    发明授权
    Method for the synthesis of silanes or organosilicon hydrides by the reduction of the corresponding silicon halides or organosilicon halides 失效
    通过还原相应的卤化硅或有机硅卤化物合成硅烷或有机硅氢化合物的方法

    公开(公告)号：US5455367A

    公开(公告)日：1995-10-03

    申请号：US229966

    申请日：1994-04-19

    申请人： Klaus-Dieter Klein ,  Wilfried Knott ,  Gotz Koerner

    发明人： Klaus-Dieter Klein ,  Wilfried Knott ,  Gotz Koerner

    IPC分类号： C01B33/04 ,  C01B6/04 ,  C07F7/08 ,  C07F7/12

    CPC分类号： C01B6/04 ,  C07F7/0896

    摘要： A method for the synthesis of silanes or organosilicon hydrides by the reduction of the corresponding silicon halides or organosilicon halides with a magnesium hydride in a liquid reaction medium is carried out by utilizing the following distinguishing features:a) the use of non-pyrophoric, preferably autocatalytically produced, storage magnesium hydride as magnesium hydride,b) the use of conventional ethers as reaction medium, andc) the continuous removal of the magnesium halide formed being deposited on the surface of the magnesium hydride particles during the reaction by the action of mechanical energy or ultrasound so as to form a fresh surface.

    摘要翻译： 通过在液体反应介质中通过用氢化镁还原相应的硅卤化物或有机硅卤化物来合成硅烷或有机硅氢化合物的方法通过利用以下区别特征进行：a）使用非发火的，优选的 自动催化生产氢化镁作为氢化镁，b）使用常规的醚作为反应介质，c）在反应过程中，通过机械的作用，连续除去形成的卤化镁沉积在氢化镁颗粒的表面上 能量或超声波，以形成新鲜的表面。