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    Cerium oxide powder and cerium oxide dispersion liquid
    1.
    发明专利
    Cerium oxide powder and cerium oxide dispersion liquid 有权
    氧化铈粉和氧化铈分散液

    公开(公告)号：JP2007051057A

    公开(公告)日：2007-03-01

    申请号：JP2006218474

    申请日：2006-08-10

    Applicant: Degussa Ag ,  デグサ アクチエンゲゼルシャフトDegussa AG

    Inventor： KATUSIC STIPAN ,  KROELL MICHAEL ,  KRAEMER MICHAEL ,  HEBERER STEFAN ,  STAAB EDWIN ,  MICHAEL GUENTHER

    IPC: C01F17/00 ,  C09K3/14

    CPC classification number: C09K3/1463 ,  B82Y30/00 ,  C01F17/0043 ,  C01F17/005 ,  C01P2004/64 ,  C01P2004/86 ,  C01P2006/12 ,  C09K3/1409

    Abstract: PROBLEM TO BE SOLVED: To provide a cerium oxide powder, a method for producing the same, and a dispersion liquid containing the powder.
    SOLUTION: The cerium oxide powder has a BET surface area of 25-150 m
    2 /g and contains primary particles having an average diameter of 5-50 nm. The layer close to the surface of each primary particle has a depth of about 5 nm, and the carbonate concentration in the layer close to the surface is decreased toward inside from the surface. The content of carbon deriving from carbonate groups is 5-50% by area percentage on the surface and 0-30% by area percentage at a depth of about 5 nm in the layer close to the surface. The content of cerium oxide is at least 99.5 mass% based on powder. Further, the content of carbon is 0.01-0.3 mass% based on powder. The dispersion liquid is sufficiently stable even when an additive is not added additionally and can be used for chemical and mechanical polishing within a range from neutrality to weak alkalinity.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 待解决的问题：提供氧化铈粉末，其制备方法和含有该粉末的分散液。 解决方案：氧化铈粉末的BET表面积为25-150m 2 / SP / g，并且含有平均直径为5-50nm的一次粒子。 靠近每个初级颗粒表面的层具有约5nm的深度，并且靠近表面的层中的碳酸盐浓度从表面向内减小。 来自碳酸酯基团的碳的含量在表面附近的层中为面积百分比为5-50％，在约5nm的深度为0-30％的面积百分比。 氧化铈的含量相对于粉末为99.5质量％以上。 此外，基于粉末，碳的含量为0.01-0.3质量％。 即使不添加添加剂也能够分散液充分稳定，可以在中性至弱碱性的范围内用于化学和机械抛光。 版权所有（C）2007，JPO＆INPIT

    Method for producing zinc oxide powder
    2.
    发明专利
    Method for producing zinc oxide powder 有权
    氧化锌粉的生产方法

    公开(公告)号：JP2007161580A

    公开(公告)日：2007-06-28

    申请号：JP2006340375

    申请日：2006-12-18

    Applicant: Degussa Gmbh ,  デグサ ゲーエムベーハーDegussa GmbH

    Inventor： ZIMMERMANN GUIDO ,  KATUSIC STIPAN ,  KRAEMER MICHAEL ,  MIESS HORST ,  NUH YILMAZ ,  MICHAEL GUENTHER

    IPC: C01G9/03

    CPC classification number: C01G9/03 ,  C01P2006/12 ,  C09C1/043

    Abstract: PROBLEM TO BE SOLVED: To provide an improved method for producing a zinc oxide powder without generating a cake-like material in an evaporation zone and an oxidation zone.
    SOLUTION: In the evaporation zone, a gas flow of an inert gas and a fuel gas is passed through a melt of zinc having a temperature of 780-850°C while forming zinc vapor. In this case, the content of the fuel gas is 1-50 vol.% based on the total volume of the inert gas and the fuel gas, and the molar ratio of the zinc vapor to the fuel gas is 0.01-50. In the oxidation zone, a second gas flow containing an oxygen-containing gas and steam is added to a gas flow of the zinc vapor, the fuel gas, and the inert gas in such an amount that the temperature in the oxidation zone is kept within a range of 500-1,000°C.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种在蒸发区和氧化区中不产生饼状材料的氧化锌粉末的制造方法。 解决方案：在蒸发区中，惰性气体和燃料气体的气流在形成锌蒸气的同时通过温度为780-850℃的锌熔体。 在这种情况下，基于惰性气体和燃料气体的总体积，燃料气体的含量为1-50体积％，锌蒸气与燃料气体的摩尔比为0.01-50。 在氧化区中，将含有含氧气体和蒸汽的第二气流加入到锌蒸汽，燃料气体和惰性气体的气流中，其量使得氧化区中的温度保持在 范围500-1,000℃。 版权所有（C）2007，JPO＆INPIT

    METHOD FOR QUANTITATIVE DETERMINATION OF SILICONE OIL OR SILOXANE
    6.
    发明专利
    METHOD FOR QUANTITATIVE DETERMINATION OF SILICONE OIL OR SILOXANE 失效

    公开(公告)号：JP2001056366A

    公开(公告)日：2001-02-27

    申请号：JP2000201369

    申请日：2000-07-03

    Applicant: DEGUSSA

    Inventor： MICHAEL GUENTHER ,  MUELLER ARNDT

    IPC: G01R33/30 ,  G01N24/08 ,  G01R33/32 ,  G01R33/46

    Abstract: PROBLEM TO BE SOLVED: To obtain a method in which silicone oil or a siloxane is quantitatively determined. SOLUTION: In this method, silicone oil or a siloxane in the range of a trace amount in silicic acid or a pyrolytic oxide is quantitatively determined by the quantitative evaluation of an 1H-NMR spectrum in such a way that the silicic acid or the pyrolytic oxide is dispersed into an organic solvent, that a solid is separated in succession, that a transparent phase is set to a dry state, that a residual substance is taken into a solvent which is changed into heavy hydrogen and that the silicone oil or the siloxane is quantitatively evaluated by integrating methylsilyl protons in the 1H-NMR spectrum.

    SURFACE-MODIFIED ZINC OXIDES
    9.
    发明申请
    SURFACE-MODIFIED ZINC OXIDES 审中-公开
    表面改性的氧化锌

    公开(公告)号：WO2005019347A3

    公开(公告)日：2005-03-31

    申请号：PCT/EP2004009023

    申请日：2004-08-12

    Applicant: DEGUSSA ,  MEYER JUERGEN ,  MICHAEL GUENTHER

    Inventor： MEYER JUERGEN ,  MICHAEL GUENTHER

    IPC: A61K8/28 ,  A61Q17/04 ,  C09C1/04 ,  A61K7/00

    CPC classification number: A61Q17/04 ,  A61K8/28 ,  C01P2006/12 ,  C09C1/043

    Abstract: Surface-modified zinc oxides with a BET surface area of 18 ± 5 m²/g and a C content of 0.1 to 5.0 wt.% are prepared by spraying the zinc oxides with the surface-modifying agent or adding this in vapour form and then heat-treating the mixture. They can be employed for the preparation of cosmetics.

    Abstract translation: 具有18±5m 2 / g的BET表面积和0.1〜5.0重量％的C含量的表面改性氧化锌是通过用表面改性剂喷雾氧化锌或将其以蒸气形式加入然后加热 - 处理混合物。 它们可以用于制备化妆品。

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