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281 条记录 (耗时 0.02 秒)

    Nanostructured forms and layers and method for producing them using stable water-soluble precursors
    71.
    发明授权
    Nanostructured forms and layers and method for producing them using stable water-soluble precursors 有权
    纳米结构形式和层以及使用稳定的水溶性前体制备它们的方法

    公开(公告)号：US06620514B1

    公开(公告)日：2003-09-16

    申请号：US09647971

    申请日：2000-10-06

    申请人： Ertugrul Arpac ,  Gerhard Jonschker ,  Hermann Schirra ,  Helmut Schmidt

    发明人： Ertugrul Arpac ,  Gerhard Jonschker ,  Hermann Schirra ,  Helmut Schmidt

    IPC分类号： B32B904

    CPC分类号： C09D4/00 ,  C03C1/008 ,  C03C14/00 ,  C03C17/009 ,  C03C2214/12 ,  C09D183/04 ,  Y10T428/2995 ,  Y10T428/31663 ,  C08G77/04 ,  C08G77/00 ,  C08L2666/54

    摘要： A process for preparing a composition for producing nanostructured mouldings and layers comprises contacting an aqueous and/or alcoholic sol of a compound of an element selected from silicon sand metals of the main groups and transition groups of the Periodic Table with species possessing hydrolysable alkoxy groups and comprising at least one organically modified alkoxysilane or a precondensate derived therefrom, under conditions which lead to (further) hydrolysis of the species, and subsequent removal of the alcohol formed and any alcohol already present originally. The process is characterized in that the alcohol is removed in an amount such that the residual alcohol content of the composition is not more than 20% by weight.

    摘要翻译： 制备纳米结构模制品和层的组合物的方法包括使选自主体的硅砂金属和周期表的过渡基团的元素的化合物的水溶液和/或醇溶胶与具有可水解烷氧基的物质接触， 包括至少一种有机改性的烷氧基硅烷或由其衍生的预缩合物，在导致（进一步）水解该物质的条件下，随后除去所形成的醇和任何已经存在的醇。 该方法的特征在于，以使得组合物的残余醇含量不超过20重量％的量除去醇。

    Foundry binder
    73.
    发明授权
    Foundry binder 有权
    铸造粘合剂

    公开(公告)号：US06378599B1

    公开(公告)日：2002-04-30

    申请号：US09297572

    申请日：1999-05-03

    申请人： Helmut Schmidt ,  Martin Mennig ,  Gerhard Jonschker

    发明人： Helmut Schmidt ,  Martin Mennig ,  Gerhard Jonschker

    IPC分类号： B22C116

    CPC分类号： C09C3/12 ,  C01P2004/64 ,  C03C17/007 ,  C03C2217/445 ,  C03C2217/475 ,  C09D183/04 ,  C08L2666/54

    摘要： A foundry binder is obtainable by surface modification of a) colloidal inorganic particles with b) one or more silanes of the general formula (I) Rx—Si—A4−x  (I) where the radicals A are identical or different and are hydroxyl groups or groups which can be removed hydrolytically, except methoxy, the radicals R are identical or different and are groups which cannot be removed hydrolytically and x is 0, 1, 2 or 3, where x≧1 in at least 50 mol % of the silanes; under the conditions of the sol-gel process with a below-stoichiometric amount of water, based on the hydrolysable groups which are present, with formation of a nanocomposite sol, and further hydrolysis and condensation of the nanocomposite sol, if desired, before it is brought into contact with the foundry sand.

    摘要翻译： 一种铸造粘结剂可以通过a）胶体无机颗粒的表面改性获得，b）一种或多种通式（I）的硅烷，其中基团A相同或不同，并且是羟基或水解除外的基团，除了甲氧基， 基团R相同或不同，并且是不能被水解除去的基团，x是0,1,2或3，其中在至少50mol％的硅烷中x> = 1;在溶胶 - 凝胶法与 基于存在的可水解基团，形成纳米复合溶胶的低于化学计算量的水，并且如果需要，在与铸造砂接触之前，进一步水解和缩合纳米复合溶胶。

    Particles having a magnetic core and outer glass layer for separating biological material
    74.
    发明授权
    Particles having a magnetic core and outer glass layer for separating biological material 失效
    具有用于分离生物材料的磁芯和外部玻璃层的颗粒

    公开(公告)号：US06255477B1

    公开(公告)日：2001-07-03

    申请号：US08952969

    申请日：1998-03-11

    申请人： Jörg Kleiber ,  Thomas Walter ,  Herbert Harttig ,  Christoph Lesniak ,  Martin Mennig ,  Michael Riedling ,  Helmut Schmidt

    发明人： Jörg Kleiber ,  Thomas Walter ,  Herbert Harttig ,  Christoph Lesniak ,  Martin Mennig ,  Michael Riedling ,  Helmut Schmidt

    IPC分类号： C12N1500

    CPC分类号： C03C3/111 ,  B03C1/01 ,  B82Y25/00 ,  C03C3/078 ,  C03C3/083 ,  C03C3/085 ,  C03C3/087 ,  C03C3/089 ,  C03C3/091 ,  C03C3/102 ,  C03C3/105 ,  C03C3/108 ,  C07H21/00 ,  C12N15/1013 ,  C12Q1/6804 ,  C12Q1/6806 ,  C12Q1/6834 ,  H01F1/0063 ,  H01F1/112 ,  H01F1/36 ,  Y10S428/90 ,  Y10S435/814 ,  Y10T428/2996

    摘要： Magnetic glass particles are prepared containing a magnetic core coated with a glass layer having a substantially pore-free glass surface. The particles are used for separating biological material such as nucleic acids. A preferred process of preparing the particles is by forming a mixture of magnetic cores with a sol formed from an alcohol and a metal alkoxide, spray-drying the mixture to coat the cores with a layer of gelled sol, and heating the coated cores to obtain the magnetic glass particles. Preferably, the particles have an average particle size of less than 100 &mgr;m and any pores of the glass surface have a diameter of less than 10 nm. The magnetic core may be a composite material containing a mica core and magnetite particles immobilized on the mica core, and the glass layer may contain boron oxide. Magnetic core materials include magnetite (Fe3O4) and Fe2O3. In using the magnetic glass particles to separate a biological material, the particles are contacted with a fluid containing the biological material such that the biological material binds to the glass surface, and the bound biological material is separated from the fluid such as by using a magnetic field. Before applying a magnetic field, the magnetic particles may sediment when contacted with the biological material.

    摘要翻译： 制备磁性玻璃颗粒，其包含涂覆有具有基本无孔玻璃表面的玻璃层的磁芯。 颗粒用于分离生物材料如核酸。 制备颗粒的优选方法是通过用由醇和金属醇盐形成的溶胶形成磁芯的混合物，喷雾干燥混合物以用一层凝胶溶胶涂覆芯，并加热涂覆的芯以获得 磁性玻璃颗粒。 优选地，颗粒的平均粒度小于100μm，并且玻璃表面的任何孔具有小于10nm的直径。 磁芯可以是包含固定在云母芯上的云母芯和磁铁矿颗粒的复合材料，并且玻璃层可以含有氧化硼。 磁芯材料包括磁铁矿（Fe3O4）和Fe2O3。 在使用磁性玻璃颗粒分离生物材料时，颗粒与包含生物材料的流体接触，使得生物材料结合到玻璃表面，并且结合的生物材料与流体分离，例如通过使用磁性 领域。 在施加磁场之前，当与生物材料接触时，磁性颗粒可能沉淀。

    Method of producing a conductive silicon carbide-based sintered compact
    75.
    发明授权
    Method of producing a conductive silicon carbide-based sintered compact 失效
    制造导电碳化硅类烧结体的方法

    公开(公告)号：US06187256B1

    公开(公告)日：2001-02-13

    申请号：US09051375

    申请日：1998-04-08

    申请人： Mesut Aslan ,  Rüdiger Nass ,  Helmut Schmidt

    发明人： Mesut Aslan ,  Rüdiger Nass ,  Helmut Schmidt

    IPC分类号： C04B35565

    CPC分类号： H05B3/148 ,  C04B35/565 ,  F01N3/022 ,  F01N2330/14

    摘要： A process is described for producing a conductive sintered body based on silicon carbide, in which a) silicon carbide particles, optionally pretreated with a surface modifier, are dispersed in an aqueous and/or organic medium and positive or negative surface charges are generated on the silicon carbide particles by adjustment of the pH of the dispersion obtained; b) carbon black and boron carbide are mixed in as sintering aids, where at least the carbon black particles have a surface charge opposite to the surface charge of the silicon carbide particles and the boron carbide can also be added, completely or in part, at a later point in time (stage c′)); c) the slip thus obtained is shaped directly to form a green body or c′) a sinterable powder is isolated from the slip obtained and is shaped to form a green body, where the above boron carbide can also be added to this sinterable powder; and d) the green body obtained is subjected to pressureless sintering to form a sintered body in essentially three successive steps, namely (i) preheating to 1200-1900° C. in a nitrogen containing atmosphere (ii), sintering at 1900-2200° C. in a noble gas atmospher and (iii) post-heating at 2150-1850° C. and subsequent cooling to ambient temperature in an atomosphere containing nitrogen and/or carbon monoxide.

    摘要翻译： 描述了一种用于制造基于碳化硅的导电烧结体的方法，其中a）任选地用表面改性剂预处理的碳化硅颗粒分散在水性和/或有机介质中，并且在硅上产生正或负表面电荷 碳化物颗粒通过调节获得的分散体的pH调节; b）炭黑和碳化硼作为烧结助剂混合，其中至少炭黑颗粒具有与碳化硅颗粒和硼的表面电荷相反的表面电荷 也可以在稍后的时间点（阶段c'）完全或部分地添加碳化物; c）由此获得的滑移物直接成形以形成生坯体，或者从可获​​得的滑动体中分离出可烧结粉末 并且成形为形成生坯体，其中也可以将上述碳化硼添加到该可烧结粉末中; 和）将所得生坯进行无压烧结，以基本上三个连续的步骤形成烧结体，即（i）在含氮气氛（ii）中预热至1200-1900℃，在1900-2200℃烧结 在惰性气体气氛中和（iii）在2150-1850℃下进行后加热，随后在含有氮和/或一氧化碳的大气中冷却至环境温度。

    Method for providing a metal surface with a vitreous layer
    76.
    发明授权
    Method for providing a metal surface with a vitreous layer 有权
    提供具有玻璃质层的金属表面的方法

    公开(公告)号：US6162498A

    公开(公告)日：2000-12-19

    申请号：US402742

    申请日：1999-10-08

    申请人： Martin Mennig ,  Gerhard Jonschker ,  Helmut Schmidt

    发明人： Martin Mennig ,  Gerhard Jonschker ,  Helmut Schmidt

    IPC分类号： C03C1/00 ,  C23C18/12 ,  B05D3/02

    CPC分类号： C03C1/008 ,  C03C2207/00 ,  C03C2207/04 ,  C03C2207/08 ,  C23C18/1212 ,  C23C18/1225 ,  C23C18/1241 ,  C23C18/127 ,  C23C18/1295 ,  Y02T50/67

    摘要： Disclosed is a process for providing a metallic surface with a vitreous layer which is both decorative and scratch resistant and corrosion inhibiting. Said process is characterized in that a coating composition which is obtainable by a process comprising the hydrolysis and polycondensation of one or more silanes of the general formula (I)R.sub.n SiX.sub.4-n (I)wherein the groups X, the same or different from each other, are hydrolyzable groups or hydroxyl groups, the radicals R, the same or different from each other, represent hydrogen, alkyl, alkenyl or alkynyl groups having up to 12 carbon atoms and aryl, aralkyl and alkaryl groups having 6 to 10 carbon atoms, and n is 0, 1 or 2, provided that at least one silane with n=1 or 2 is employed, or oligomers derived therefrom, in the presence ofa) nanoscaled SiO.sub.2 particles and/orb) at least one compound selected from the group consisting of the oxides and hydroxides of the alkali and alkaline earth metals;is applied onto said metallic surface and the resulting coating is thermally densified to form a vitreous layer.

    摘要翻译： PCT No.PCT / EP98 / 02076 Sec。 371 1999年10月8日第 102（e）1999年10月8日PCT PCT 1998年4月9日PCT公布。 公开号WO98 / 45502 日期1998年10月15日公开是为金属表面提供玻璃质层的方法，其具有装饰性和耐刮擦性和腐蚀抑制性。 所述方法的特征在于，通过包括通式（I）的R 1 SiX 4-n（I）的一种或多种硅烷的水解和缩聚的方法获得的涂料组合物，其中基团X彼此相同或不同 是可水解基团或羟基，基团R彼此相同或不同，表示具有至多12个碳原子的氢，烷基，烯基或炔基和具有6至10个碳原子的芳基，芳烷基和烷芳基，以及 n是0,1或2，条件是在a）纳米尺度的SiO 2颗粒和/或b）存在下，使用至少一种n = 1或2的硅烷或由其衍生的低聚物，或b）至少一种选自以下的化合物 由碱金属和碱土金属的氧化物和氢氧化物组成; 施加到所述金属表面上，并将所得涂层热致密化以形成玻璃质层。

    Method of producing glass substrates with improved long-term rigidity at elevated temperatures
    80.
    发明授权
    Method of producing glass substrates with improved long-term rigidity at elevated temperatures 失效
    在高温下生产具有改善的长期刚性的玻璃基材的方法

    公开(公告)号：US5716424A

    公开(公告)日：1998-02-10

    申请号：US338516

    申请日：1994-12-09

    申请人： Martin Mennig ,  Gerhard Jonschker ,  Helmut Schmidt

    发明人： Martin Mennig ,  Gerhard Jonschker ,  Helmut Schmidt

    IPC分类号： C03C17/22 ,  C03C17/02 ,  C03C17/25 ,  C03C25/10 ,  C09D185/00 ,  D06M13/02 ,  D06M13/50 ,  D06M13/503 ,  D06M13/507 ,  D06M13/51 ,  D06M13/513 ,  D06M101/00 ,  C03C17/00

    CPC分类号： C03C17/02 ,  C03C17/25 ,  C03C2217/229 ,  C03C2217/23 ,  C03C2218/113

    摘要： Described is a process for the manufacture of glass substrates with improved long-term stability at raised temperatures, in which process a glass substrate is provided with a coating, this coating being prepared from a composition, which was obtained through hydrolysis and condensation of a compound that was dissolved in a solvent and belonged to at least one element from the group Si, Al, Ti and Zr and/or a suitable precondensate, optionally in combination with compounds, which are soluble in the reaction medium, of at least one element from the group of alkali metals, alkali earth metals, and boron. After the coating composition is deposited, the coating obtained thus is heat treated. The process is characterized in that the coating is not completely compacted.

    摘要翻译： PCT No.PCT / EP93 / 00484 Sec。 371 1994年12月9日第 102（e）日期1994年12月9日PCT 1993年3月3日PCT公布。 出版物WO93 / 24424 PCT 日期1993年12月2日描述了一种在升高的温度下具有改善的长期稳定性的玻璃基材的制造方法，其中玻璃基板具有涂层，该涂层由通过水解获得的组合物制备 和溶解在溶剂中并属于Si，Al，Ti和Zr族中的至少一种元素的化合物和/或合适的预缩合物，任选地与可溶于反应介质的化合物组合， 来自碱金属，碱土金属和硼的至少一种元素。 在沉积涂料组合物后，由此得到的涂层进行热处理。 该方法的特征在于涂层未完全压实。