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    Stabilized, aqueous silicon dioxide dispersion
    1.
    发明授权
    Stabilized, aqueous silicon dioxide dispersion 有权
    稳定的二氧化硅水分散体

    公开(公告)号：US07374787B2

    公开(公告)日：2008-05-20

    申请号：US10644755

    申请日：2003-08-21

    申请人： Wolfgang Lortz ,  Christoph Batz-Sohn ,  Gabriele Perlet ,  Werner Will ,  Gerrit Schneider ,  Peter Neugebauer

    发明人： Wolfgang Lortz ,  Christoph Batz-Sohn ,  Gabriele Perlet ,  Werner Will ,  Gerrit Schneider ,  Peter Neugebauer

    IPC分类号： A23L2/70 ,  C12H1/00

    CPC分类号： C09D11/38 ,  B41M5/5218 ,  C01P2006/12 ,  C09C1/3045 ,  C09C1/3054 ,  C09D7/45 ,  C09G1/02 ,  C09K3/1409 ,  C09K3/1463 ,  D21H19/40

    摘要： An aqueous dispersion, having a silicon dioxide powder having a silicon dioxide content of 10 to 60 wt.%, wherein the aqueous dispersion is stable in the pH range of 2 to 6, the aqueous dispersion additionally contains at least one compound, which is at least partially soluble in aqueous solution in the pH range 2 to 6 in the form of polyvalent cations, these being stable in a silicate-like environment as an anionic component of the particle surface of the silicon dioxide powder, the quantity of cation-providing compound in relation to the surface of the silicon dioxide is 0.001 to 0.1 mg cation-providing compound/m2 silicon dioxide surface, the cation-providing compound being calculated as the oxide, and the zeta potential of the aqueous dispersion has values of less than or equal to zero.

    摘要翻译： 一种水分散体，其二氧化硅粉末的二氧化硅含量为10至60重量％，其中水分散体在pH范围为2至6时是稳定的，水分散体还含有至少一种化合物，其在 在多价阳离子形式的pH范围2〜6的水溶液中最少部分溶解，这些在作为二氧化硅粉末的粒子表面的阴离子成分的硅酸盐样环境中稳定，提供阳离子的化合物的量 相对于二氧化硅的表面为0.001〜0.1mg的提供阳离子的化合物/ m 2二氧化硅表面，阳离子提供化合物以氧化物计算，并且水溶液的ζ电位 色散的值小于或等于零。

    Process for the production of metal oxide and metalloid oxide dispersions
    2.
    发明授权
    Process for the production of metal oxide and metalloid oxide dispersions 有权
    用于生产金属氧化物和类金属氧化物分散体的方法

    公开(公告)号：US08529651B2

    公开(公告)日：2013-09-10

    申请号：US12894539

    申请日：2010-09-30

    申请人： Wolfgang Lortz ,  Christoph Batz-Sohn ,  Gabriele Perlet ,  Werner Will ,  Gerrit Schneider

    发明人： Wolfgang Lortz ,  Christoph Batz-Sohn ,  Gabriele Perlet ,  Werner Will ,  Gerrit Schneider

    IPC分类号： B24D3/02 ,  C09C1/68 ,  C09K3/14 ,  C01B33/12

    CPC分类号： C09G1/02 ,  C01B13/145 ,  C01B33/1417 ,  C01F7/026 ,  C01P2002/50 ,  C01P2006/12 ,  C01P2006/22 ,  C03C1/006 ,  C09K3/1463

    摘要： Process for the production of an aqueous dispersion of pyrogenically produced metal oxide and metalloid oxide powders with a BET surface area of between 5 and 600 m2/g, with a metal oxide or metalloid oxide content in the dispersion of between 5 and 25 wt. %, comprising the following steps: water, which is optionally adjusted to pH values of between 2 and 4 by adding acids, is circulated from a receiving vessel via a rotor/stator machine, and metal oxide or metalloid oxide powder is introduced, using a feed device, into the shear zone between the slots in the rotor teeth and the stator slots, continuously or discontinuously and with the rotor/stator machine running, in a quantity such that a predispersion with a solids content of between 20 and 40 wt. % results, and, after all the metal oxide powder or metalloid oxide powder has been added, the feed device closes and shearing continues in such a way that the shear rate is in the range of between 10000 and 40000 s−1, and then, by dilution, the predispersion is adjusted to the desired solids content of the dispersion while maintaining the dispersing conditions.

    摘要翻译： 制备热解法生产的金属氧化物和类金属氧化物粉末的水性分散体的方法，其BET表面积为5至600m 2 / g，分散体中的金属氧化物或准金属氧化物含量为5至25重量％。 ％，包括以下步骤：通过添加酸任选地将pH调节至2至4的水通过转子/定子机从接收容器循环，并引入金属氧化物或准金属氧化物粉末，使用 进料装置连续或不连续地进入转子齿中的狭槽和定子槽之间的剪切区域中，并且转子/定子机器运行，其量使得固体含量为20至40重量％的预分散体。 ％的结果，并且在添加了所有的金属氧化物粉末或准金属氧化物粉末之后，进料装置关闭并且剪切继续进行，使得剪切速率在10000和40000s -1之间，然后， 通过稀释，将预分散体调节至分散体的所需固体含量，同时保持分散条件。

    PROCESS FOR THE PRODUCTION OF METAL OXIDE AND METALLOID OXIDE DISPERSIONS
    3.
    发明申请
    PROCESS FOR THE PRODUCTION OF METAL OXIDE AND METALLOID OXIDE DISPERSIONS 有权
    生产金属氧化物和金属氧化物分散体的方法

    公开(公告)号：US20110155951A1

    公开(公告)日：2011-06-30

    申请号：US12894539

    申请日：2010-09-30

    申请人： Wolfgang LORTZ ,  Christoph Batz-Sohn ,  Gabriele Perlet ,  Werner Will ,  Gerrit Schneider

    发明人： Wolfgang LORTZ ,  Christoph Batz-Sohn ,  Gabriele Perlet ,  Werner Will ,  Gerrit Schneider

    IPC分类号： C09K3/00

    CPC分类号： C09G1/02 ,  C01B13/145 ,  C01B33/1417 ,  C01F7/026 ,  C01P2002/50 ,  C01P2006/12 ,  C01P2006/22 ,  C03C1/006 ,  C09K3/1463

    摘要： Process for the production of an aqueous dispersion of pyrogenically produced metal oxide and metalloid oxide powders with a BET surface area of between 5 and 600 m2/g, with a metal oxide or metalloid oxide content in the dispersion of between 5 and 25 wt. %, comprising the following steps:water, which is optionally adjusted to pH values of between 2 and 4 by adding acids, is circulated from a receiving vessel via a rotor/stator machine, andmetal oxide or metalloid oxide powder is introduced, using a feed device, into the shear zone between the slots in the rotor teeth and the stator slots, continuously or discontinuously and with the rotor/stator machine running, in a quantity such that a predispersion with a solids content of between 20 and 40 wt. % results, and, after all the metal oxide powder or metalloid oxide powder has been added,the feed device closes and shearing continues in such a way that the shear rate is in the range of between 10000 and 40000 s−1, andthen, by dilution, the predispersion is adjusted to the desired solids content of the dispersion while maintaining the dispersing conditions.

    摘要翻译： 制备热解法生产的金属氧化物和类金属氧化物粉末的水性分散体的方法，其BET表面积为5至600m 2 / g，分散体中的金属氧化物或准金属氧化物含量为5至25重量％。 ％，包括以下步骤：通过添加酸任选地将pH调节至2至4的水通过转子/定子机从接收容器循环，并引入金属氧化物或准金属氧化物粉末，使用 进料装置连续或不连续地进入转子齿中的狭槽和定子槽之间的剪切区域中，并且转子/定子机器运行，其量使得固体含量为20至40重量％的预分散体。 ％的结果，并且在添加了所有的金属氧化物粉末或准金属氧化物粉末之后，进料装置关闭并且剪切继续进行，使得剪切速率在10000和40000s -1之间，然后， 通过稀释，将预分散体调节至分散体的所需固体含量，同时保持分散条件。

    Process for the produciton of metal oxide and metalloid oxide dispersions
    4.
    发明申请
    Process for the produciton of metal oxide and metalloid oxide dispersions 审中-公开
    用于生产金属氧化物和类金属氧化物分散体的方法

    公开(公告)号：US20060104881A1

    公开(公告)日：2006-05-18

    申请号：US10546893

    申请日：2004-04-01

    申请人： Wolfgang Lortz ,  Christoph Batz-Sohn ,  Gabriele Perlet ,  Werner Will ,  Gerrit Schneider

    发明人： Wolfgang Lortz ,  Christoph Batz-Sohn ,  Gabriele Perlet ,  Werner Will ,  Gerrit Schneider

    IPC分类号： C01B33/12

    CPC分类号： C09G1/02 ,  C01B13/145 ,  C01B33/1417 ,  C01F7/026 ,  C01P2002/50 ,  C01P2006/12 ,  C01P2006/22 ,  C03C1/006 ,  C09K3/1463

    摘要： Process for the production of an aqueous dispersion of pyrogenically produced metal oxide and metalloid oxide powders with a BET surface area of between 5 and 600 m2/g, with a metal oxide or metalloid oxide content in the dispersion of between 5 and 25 wt. %, comprising the following steps:—water, which is optionally adjusted to pH values of between 2 and 4 by adding acids, is circulated from a receiving vessel via a rotor/stator machine, and—metal oxide or metalloid oxide powder is introduced, using a feed device, into the shear zone between the slots in the rotor teeth and the stator slots, continuously or discontinuously and with the rotor/stator machine running, in a quantity such that a predispersion with a solids content of between 20 and 40 wt. % results, and, after all the metal oxide powder or metalloid oxide powder has been added,—the feed device closes and shearing continues in such a way that the shear rate is in the range of between 10000 and 40000 s−1, and—then, by dilution, the predispersion is adjusted to the desired solids content of the dispersion while maintaining the dispersing conditions.

    摘要翻译： 用于生产热解法制备的金属氧化物和类金属氧化物粉末的水分散体的方法，其BET表面积为5至600m 2 / g，分散体中具有金属氧化物或准金属氧化物含量 为5至25重量％ ％，包括以下步骤： - 通过加入酸任选地将pH调节至2至4的水通过转子/定子机从接收容器循环，引入金属氧化物或准金属氧化物粉末， 使用进给装置连续地或不连续地并且与转子/定子机器运行在转子齿和定子槽中的槽之间的剪切区域中，其量使得固体含量在20和40重量％之间的预分散体 。 ％结果，并且在添加了所有的金属氧化物粉末或准金属氧化物粉末之后，进料装置关闭并且剪切继续进行，使得剪切速率在10000和40000s -1之间的范围内 然后，通过稀释，将预分散体调节至分散体的所需固体含量，同时保持分散条件。

    Method of producing glass of optical quality
    5.
    发明申请
    Method of producing glass of optical quality 审中-公开
    制造光学品质玻璃的方法

    公开(公告)号：US20080213497A1

    公开(公告)日：2008-09-04

    申请号：US11978715

    申请日：2007-10-30

    申请人： Monika Oswald ,  Gerrit Schneider ,  Jurgen Meyer

    发明人： Monika Oswald ,  Gerrit Schneider ,  Jurgen Meyer

    IPC分类号： B05D1/08 ,  C03B37/018

    CPC分类号： C03B19/01 ,  C03B19/102 ,  C03B37/01291 ,  C03B2201/12 ,  C03C1/026

    摘要： Glass is produced by depositing presintering composition on a preform set into move in front of a plasma torch which moves back and forth substantially parallel to a longitudinal direction of the preform, a first feed duct feeds the plasma with grains of the presintering composition while optionally a second feed duct feeds the plasma with a fluorine or chlorine compound, preferably a fluorine compound, mixed with a carrier gas.

    摘要翻译： 玻璃是通过将预烧结组合物沉积在等离子体焰炬之前移动的预成型体上制造的，所述等离子体焰炬基本上平行于预成型件的纵向方向前后移动，第一进料管将预烧结组合物的颗粒进料到等离子体， 第二进料管将等离子体与载气混合的氟化合物或氯化合物，优选氟化合物进料。

    Dispersion of aluminium oxide
    8.
    发明授权
    Dispersion of aluminium oxide 有权
    氧化铝的分散

    公开(公告)号：US07572854B2

    公开(公告)日：2009-08-11

    申请号：US10277130

    申请日：2002-10-22

    申请人： Gerrit Schneider ,  Heinz Lach ,  Thomas Scharfe

    发明人： Gerrit Schneider ,  Heinz Lach ,  Thomas Scharfe

    IPC分类号： C08K3/18 ,  D06M15/263

    CPC分类号： B41M5/5218 ,  B82Y30/00 ,  C01F7/02 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/22 ,  C01P2006/90 ,  C03C17/25 ,  C03C2217/214 ,  C03C2218/11 ,  C09D17/007 ,  Y10T428/24802 ,  Y10T428/257 ,  Y10T428/27 ,  Y10T428/31993

    摘要： Aqueous dispersions of a pyrogenically-produced aluminum oxide are prepared form a mixture containing water, additives and a high-surface-area pyrogenically-produced aluminum oxide with a BET specific surface area of more than 115 m2/g and a Sears number of more than 8 ml/2 g using controlled high shearing conditions. Prior to subjecting the mixture to high shear conditions, the pH of the mixture is adjusted to a value between of 2 to 11 (preferably 3 to 8). The aqueous dispersion has a mean particle size distribution of d50

    摘要翻译： 热解产生的氧化铝的水分散体由含有水，添加剂和BET比表面积大于115m 2 / g的高表面积热解生成氧化铝的混合物制备，并且Sears数大于 8 ml / 2 g，使用受控的高剪切条件。 在使混合物经受高剪切条件之前，将混合物的pH调节至2至11（优选3至8）之间的值。 水分散体的平均粒度分布为d50 <150nm。 这些分散体可用于喷墨介质，数字成像产品和其他印刷介质的生产，并产生高色密度，照相现实的复制品，特别是良好的印刷和光泽品质。