中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

139 records (took 0.022 seconds)

    METHOD FOR PRODUCING MIXED OXIDES COMPRISING LITHIUM
    52.
    发明专利
    METHOD FOR PRODUCING MIXED OXIDES COMPRISING LITHIUM 未知

    公开(公告)号：CA2803211A1

    公开(公告)日：2011-12-29

    申请号：CA2803211

    申请日：2011-06-07

    Applicant: EVONIK DEGUSSA GMBH

    Inventor： KATUSIC STIPAN ,  KRESS PETER

    IPC: C01G1/02 ,  C01G53/00

    Abstract: The invention relates to a method for producing a mixed oxide powder comprising lithium, wherein a) a flow of a solution comprising at least one lithium compound and at least one metal compound of one or more mixed oxide components in the required stoichiometric ratio is atomized by means of an atomizing gas into an aerosol, having an average droplet size of less than 100 µm, b) the aerosol is brought to reaction in a reaction chamber by means of a flame obtained from a mixture of combustion gas and air, wherein the total amount of oxygen is at least sufficient for completely converting the combustion gas and the metal compounds, c) the reaction chamber is cooled, and d) the solid product is then separated out of the reaction flow.

    54.
    发明专利
    未知

    公开(公告)号：AT480503T

    公开(公告)日：2010-09-15

    申请号：AT05767070

    申请日：2005-07-19

    Applicant: EVONIK DEGUSSA GMBH

    Inventor： KATUSIC STIPAN ,  KRAEMER MICHAEL ,  MIESS HORST ,  HENNIG THOMAS ,  KRESS PETER

    IPC: C01G25/00 ,  C01F17/00

    Abstract: Nano-scale yttrium-zirconium mixed oxide powder in the form of aggregated primary particles having the following physico-chemical parameters:-BET surface area: from 40 to 100 m2/g,-da=from 3 to 30 nm, d,=mean, number-related primary particle diameter,-yttrium content, calculated as yttrium oxide Y2O3, determined by chemical analysis, from 5 to 15 wt. %, based on the mixed oxide powder,-yttrium contents of individual primary particles, calculated as yttrium oxide Y2O3 determined by TEM EDX, corresponding to the content in the powder+-10%,-content at room temperature, determined by X-ray diffraction and based on the mixed oxide powder-monoclinic zirconium oxide from

    55.
    发明专利
    未知

    公开(公告)号：AT471357T

    公开(公告)日：2010-07-15

    申请号：AT07788143

    申请日：2007-08-01

    Applicant: EVONIK DEGUSSA GMBH

    Inventor： KATUSIC STIPAN ,  ZIMMERMANN GUIDO ,  MEYER JUERGEN

    IPC: C09C1/04

    Abstract: Surface-modified zinc-silicon oxide particles which consist of a core, a first coating layer surrounding the core, and a second coating layer surrounding the first coating layer, where the core is crystalline and consists of aggregated zinc oxide primary particles having a primary particle diameter of from 10 to 75 nm, the first coating layer consists of one or more compounds containing the elements Zn, Si and O, the second coating layer comprises linear and/or branched alkylsilyl groups having 1 to 20 carbon atoms bonded chemically to the first coating layer, which have an average aggregate area of less than 40 000 nm2 and an average aggregate diameter (ECD) of less than 300 nm, a carbon content of from 0.4 to 1.5% by weight and a BET surface area of from 10 to 60 m2/g.

    58.
    发明专利
    未知

    公开(公告)号：AT449036T

    公开(公告)日：2009-12-15

    申请号：AT06777794

    申请日：2006-07-14

    Applicant: EVONIK DEGUSSA GMBH

    Inventor： KATUSIC STIPAN ,  MEYER JUERGEN ,  MIESS HORST ,  OSWALD MONIKA ,  ROCHNIA MATTHIAS

    IPC: C01G25/00 ,  C01G25/02 ,  C04B35/488

    Abstract: Mixed oxide powder consisting of particles with the components zirconium dioxide, aluminium oxide and at least a third component selected from the group including yttrium oxide, magnesium oxide or calcium oxide, wherein mixed oxide powder has an aluminium oxide content 0.01 to 10 wt. % and is homogeneously distributed in the mixed oxide particles, the content of aluminium oxide, zirconium dioxide and yttrium oxide is at least 99.5 wt. %, based on the total quantity of the powder, and the BET surface area is 20 to 80 m2/g. It is obtained by atomising a solution containing at least one starting compound for each of aluminium oxide, zirconium dioxide and the third component, allowing the atomised solution to react with oxygen in a reaction chamber at a reaction temperature 700 to 15000° C., cooling the hot gases and the solid products and then separating the solid product from the gases. It can be used as a dental material.

    59.
    发明专利
    未知

    公开(公告)号：DE60315437T2

    公开(公告)日：2008-05-08

    申请号：DE60315437

    申请日：2003-03-10

    Applicant: EVONIK DEGUSSA GMBH

    Inventor： KATUSIC STIPAN ,  MICHAEL GUENTHER ,  KRESS PETER ,  VARGA GEOFFREY J ,  STAAB EDWIN ,  WEBER WINFRIED

    IPC: B82B1/00 ,  C01G9/03 ,  A61K8/27 ,  A61Q17/04

    Abstract: Nanoscale, pyrogenically produced zinc oxide having a BET surface area of 10 to 200 m2/g, which is in the form of aggregates of anisotropic primary particles and whereby the aggregates display an average diameter of 50 to 300 nm. It is obtained from zinc powder, which is converted to zinc oxide powder in the four successive reaction zones, evaporation zone, nucleation zone, oxidation zone and quench zone. It can be used in sunscreen formulations.

    Oxide particle, useful in dispersions and a sun protection formulation, comprises zinc and manganese
    60.
    发明专利
    Oxide particle, useful in dispersions and a sun protection formulation, comprises zinc and manganese 未知

    公开(公告)号：DE102006035136A1

    公开(公告)日：2008-01-31

    申请号：DE102006035136

    申请日：2006-07-29

    Applicant: EVONIK DEGUSSA GMBH

    Inventor： KATUSIC STIPAN ,  KROELL MICHAEL ,  HEBERER STEFAN ,  KRES PETER ,  ZIMMERMANN GUIDO

    IPC: C01G9/02 ,  C01G45/02

    Abstract: Oxide particle comprises zinc and manganese, where the ratio of zinc to manganese is 15-300 atom.%, the amount of zinc, manganese and oxygen is at least 99 wt.%, the oxide particle exist in the form of aggregated primary particle and exhibits a Brunauer-Emmett and Teller surface of 10-60 m 2>/g, manganese exists in and on the primary particle and signals of zinc oxide are detectable only in the X-ray diffractogram. Independent claims are included for: (1) preparing oxide particle containing zinc and manganese comprising introducing at least an oxidizable organic zinc compound solution and at least an oxidizable organic manganese compound into an organic solvent or its mixture, separately or in form of a combined solution, by means of an atomizing gas under the formation of an aerosol, introducing aerosol into a high temperature zone at 500-2500[deg]C with oxygen or an oxygen-containing gas for reacting, where the quantity of oxygen should be sufficient to transfer the organic zinc compound and the organic manganese compound completely, cooling the hot gas and the solid product and subsequently separating the solid product of the gases and optionally reacting the solid product with the surface modifying agent; (2) a dispersion comprising zinc and manganese containing oxide particle; (3) a coating composition comprising zinc and manganese containing oxide particle or the dispersion and at least a binding agent; and (4) a sun protection formulation comprising zinc and manganese containing oxide particle or the dispersion.

Patent Agency Ranking