中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

147 records (took 0.018 seconds)

    DISPERSION CONTAINING TITANIUM DIOXIDE
    2.
    发明申请
    DISPERSION CONTAINING TITANIUM DIOXIDE 审中-公开
    含有二氧化钛的分散体

    公开(公告)号：WO2006010438A3

    公开(公告)日：2006-10-12

    申请号：PCT/EP2005007210

    申请日：2005-07-05

    Applicant: DEGUSSA ,  PERLET GABRIELE ,  LORTZ WOLFGANG ,  BATZ-SOHN CHRISTOPH ,  WILL WERNER ,  REITZ SASCHA

    Inventor： PERLET GABRIELE ,  LORTZ WOLFGANG ,  BATZ-SOHN CHRISTOPH ,  WILL WERNER ,  REITZ SASCHA

    IPC: C09C1/36 ,  C04B41/50 ,  C09D17/00

    CPC classification number: C03C17/256 ,  B82Y30/00 ,  C01P2004/64 ,  C01P2006/12 ,  C03C2217/212 ,  C03C2218/113 ,  C04B41/009 ,  C04B41/5041 ,  C04B41/87 ,  C04B2111/00586 ,  C04B2111/2061 ,  C04B2111/60 ,  C09C1/3669 ,  C09D17/008 ,  C04B41/4539 ,  C04B33/00

    Abstract: Aqueous dispersion obtainable by placing in water an aggregated titanium dioxide powder having a specific surface area of from 20 to 150 m 2 /g in such an amount that the desired dispersion comprises at least 20 wt.% titanium dioxide, and at least one amino alcohol having from 1 to 6 carbon atoms, and at least one carboxylic acid from the group comprising dibasic carboxylic acids and/or hydroxycarboxylic acids having from 2 to 6 carbon atoms, - the amino alcohol being present in the dispersion in an amount of from 2.5 to 7.0 µmol./m 2 specific surface area TiO 2 and the carboxylic acid being present in an amount of from 1.0 to 3.5 µmol./m 2 specific surface area TiO 2 , - producing a pre-dispersion by introducing energy in an amount of less than 200 kJ/m 3 and then producing a dispersion in which the aggregated titanium dioxide powder has a mean, volume-related aggregate diameter of less than 150 nm by grinding the pre-dispersion by means of a high-energy mill at a pressure of at least 500 bar. The dispersion can be used in the coating of glass, ceramics and metal surfaces.

    Abstract translation: 通过将具有20至150m 2 / g的比表面积的聚集的二氧化钛粉末放置在水中而获得的水溶液，其量使得所需的分散体包含至少20重量％的二氧化钛 和至少一种具有1至6个碳原子的氨基醇，和至少一种含有二元羧酸和/或具有2至6个碳原子的羟基羧酸的羧酸， - 氨基醇存在于分散体 其量为2.5至7.0μmol/ m 2比表面积TiO 2，羧酸的存在量为1.0-3.5μmol/ m 2 比表面积TiO 2 2，通过引入少于200kJ / m 3的量的能量产生预分散，然后 产生其中聚集的二氧化钛粉末通过研磨预分散剂具有小于150nm的平均体积相关聚集体直径的分散体 通过在至少500巴的压力下的高能磨机。 分散体可用于玻璃，陶瓷和金属表面的涂层。

    ALUMINIUM OXIDE POWDER PRODUCED BY FLAME HYDROLYSIS AND HAVING A LARGE SURFACE AREA
    3.
    发明申请
    ALUMINIUM OXIDE POWDER PRODUCED BY FLAME HYDROLYSIS AND HAVING A LARGE SURFACE AREA 审中-公开
    火焰水解法制备的氧化铝粉末及其大面积表面

    公开(公告)号：WO2005061385A2

    公开(公告)日：2005-07-07

    申请号：PCT/EP2004013564

    申请日：2004-11-30

    Applicant: DEGUSSA ,  SCHUMACHER KAI ,  GOLCHERT RAINER ,  SCHILLING ROLAND ,  BATZ-SOHN CHRISTOPH ,  MOERTERS MARTIN

    Inventor： SCHUMACHER KAI ,  GOLCHERT RAINER ,  SCHILLING ROLAND ,  BATZ-SOHN CHRISTOPH ,  MOERTERS MARTIN

    IPC: C01F7/02 ,  C01F7/30

    CPC classification number: C01F7/302 ,  C01P2002/01 ,  C01P2002/02 ,  C01P2002/72 ,  C01P2004/50 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/19

    Abstract: Aluminium oxide powder produced by flame hydrolysis and consisting of aggregates of primary particles, having a BET surface area of from 100 to 250 m /g, a dibutyl phthalate absorption of from 50 to 450 g/100 g of aluminium oxide powder, which powder shows only crystalline primary particles in high-resolution TEM pictures. It is prepared by vaporising aluminium chloride, transferring the vapour by means of a carrier gas to a mixing chamber and, separately therefrom, supplying hydrogen, air (primary air), which may optionally be enriched with oxygen and/or may optionally be pre-heated, to the mixing chamber, then igniting the mixture of aluminium chloride vapour, hydrogen, air in a burner and burning the flame into a reaction chamber that is separated from the surrounding air, subsequently separating the solid material from the gaseous substances and then treating the solid material with steam and optionally with air, the discharge rate of the reaction mixture from the mixing chamber into the reaction chamber being at least 10 m/s, and the lambda value being from 1 to 10 and the gamma value being from 1 to 15. It can be used as an ink-absorbing substance in ink-jet media.

    Abstract translation: 通过火焰水解制备并由初级颗粒聚集体组成的氧化铝粉末，其BET表面积为100-250平方米/克，邻苯二甲酸二丁酯吸收量为50-450克/ 100克氧化铝粉末， 该粉末在高分辨率TEM照片中仅显示结晶初级粒子。 它通过蒸发氯化铝，通过载气将蒸汽转移到混合室并与此分开地供应氢气，空气（一次空气），其可以任选地富含氧气和/或可以任选地被预处理， 加热到混合室，然后在燃烧器中点燃氯化铝蒸汽，氢气和空气的混合物，并将火焰燃烧到与周围空气分离的反应室中，随后将固体物质与气态物质分离，然后处理 具有蒸汽和任选的空气的固体材料，反应混合物从混合室进入反应室的排出速率至少为10m / s，λ值为1至10，γ值为1至10 15.它可以用作喷墨介质中的吸墨物质。

    TITANIUM DIOXIDE COATED WITH SILICON DIOXIDE
    4.
    发明申请
    TITANIUM DIOXIDE COATED WITH SILICON DIOXIDE 审中-公开
    用二氧化硅涂布的二氧化钛

    公开(公告)号：WO2004056927A3

    公开(公告)日：2004-08-26

    申请号：PCT/EP0313534

    申请日：2003-12-02

    Applicant: DEGUSSA ,  SCHUMACHER KAI ,  BATZ-SOHN CHRISTOPH ,  HASENZAHL STEFFEN

    Inventor： SCHUMACHER KAI ,  BATZ-SOHN CHRISTOPH ,  HASENZAHL STEFFEN

    IPC: C01G23/07 ,  C09C1/36

    CPC classification number: C09C1/3661 ,  C01G23/07 ,  C01P2004/03 ,  C01P2004/84 ,  C01P2006/12 ,  C01P2006/90 ,  Y10T428/2993

    Abstract: Powder consisting of particles with a core of titanium dioxide and a coating of silicon dioxide, which powder has a content of silicon dioxide of between 0.5 and 40 wt.%, a BET surface of between 5 and 300 m /g, and which consists of primary particles that have a coating of silicon dioxide and a core of titanium dioxide. The powder is produced according to a process in which a vaporisable silicon compound and a vaporisable titanium compound are mixed corresponding to the subsequently desired ratio of SiO2 and TiO2 in the product, are vaporised at temperatures of 200°C or less, and conveyed by means of an inert gas stream together with hydrogen and air or with oxygen-enriched air to the central pipe (core) of a known burner, the reaction mixture is ignited at the mouth of the burner and introduced together with secondary air, is combusted in a cooled flame pipe, following which the titanium dioxide powder coated with silicon dioxide is separated from the gaseous reaction products and if necessary is freed in moist air from adhering hydrogen chloride, the ratio of primary air to secondary air being greater than 0.3, the ratio of core hydrogen to secondary air being greater than 1, and the ratio of titanium dioxide precursor to secondary air being greater than 0.5. Sunscreen agent containing the powder in an amount of between 0.01 and 25 wt.%.

    Abstract translation: 由具有二氧化钛核心和二氧化硅涂层的颗粒组成的粉末，所述粉末具有0.5至40重量％的二氧化硅含量，5至300平方米/克的BET表面积和 它由具有二氧化硅涂层和二氧化钛核心的初级颗粒组成。 该粉末是按照下述方法生产的，其中将可汽化的硅化合物和可汽化的钛化合物相应于产品中随后所需的SiO 2和TiO 2的比例混合，在200℃或更低的温度下汽化，并通过装置 的惰性气流与氢气和空气或富氧空气一起加入到已知燃烧器的中心管（芯）中，反应混合物在燃烧器的口部点燃并与二次空气一起引入，在 然后将涂覆有二氧化硅的二氧化钛粉末与气态反应产物分离，并且如果需要的话，在潮湿的空气中从附着的氯化氢中释放，一次空气与二次空气的比率大于0.3， 核心氢与二次空气的摩尔比大于1，二氧化钛前体与二次空气的摩尔比大于0.5。 含有0.01至25重量％粉末的防晒剂。

    Dispersión con contenido en dióxido de titanio
    5.
    发明专利
    Dispersión con contenido en dióxido de titanio 未知

    公开(公告)号：ES2713853T3

    公开(公告)日：2019-05-24

    申请号：ES05756570

    申请日：2005-07-05

    Applicant: EVONIK DEGUSSA GMBH

    Inventor： PERLET GABRIELE ,  LORTZ WOLFGANG ,  BATZ-SOHN CHRISTOPH ,  WILL WERNER ,  REITZ SASCHA

    IPC: C09C1/36 ,  B82Y30/00 ,  C03C17/25 ,  C04B41/00 ,  C04B41/50 ,  C04B41/87 ,  C09D17/00

    Abstract: Dispersión acuosa obtenible - al disponer en agua un polvo de dióxido de titanio agregado que tiene un área superficial específica de 20 a 150 m2/g en una cantidad tal que la dispersión deseada comprenda al menos 20% en peso de dióxido de titanio, y al menos un amino alcohol que tenga de 1 a 6 átomos de carbono y al menos un ácido carboxílico del grupo que comprende ácidos carboxílicos dibásicos y/o ácidos hidroxicarboxílicos que tienen de 2 a 6 átomos de carbono, - estando presente el aminoalcohol en la dispersión en una cantidad de 2,5 a 7,0 μmol/m2 de área de superficie específica de TiO2 y estando presente el ácido carboxílico en una cantidad de 1,0 a 3,5 μmol/m2 de área de superficie específica de TiO2, - produciendo una pre-dispersión mediante la introducción de energía en una cantidad inferior a 200 kJ/m3 y luego produciendo una dispersión en la que el polvo de dióxido de titanio agregado tiene un diámetro de agregado medio relacionado con el volumen de menos de 150 nm moliendo la pre-dispersión por medio de un molino de alta energía a una presión de al menos 500 bares.

    8.
    发明专利
    未知

    公开(公告)号：AT458775T

    公开(公告)日：2010-03-15

    申请号：AT06807176

    申请日：2006-10-12

    Applicant: EVONIK DEGUSSA GMBH

    Inventor： HAEGER HARALD ,  BAUMANN FRANZ-ERICH ,  LORTZ WOLFGANG ,  BATZ-SOHN CHRISTOPH

    IPC: C08J3/12 ,  C09D177/00

    Abstract: Process for preparing ultrafine powders based on polyamides by contacting polyamides having a relative solution viscosity &eegr;rel in the range from 1.5 to 2.0, measured in 0.5% m-cresol solution at 25° C., with an alcoholic medium in the presence of inorganic particles suspended therein under the action of pressure and/or temperature to generate an at least partial solution, and then precipitating the polyamide from the at least partial solution; the resulting ultrafine polyamide powders have a specific BET surface area of 5-100 m2/g; a fineness d50 of less than 70 μm; an apparent density AD from 250 to 1000 g/l; and a particle content of 0.1 to 80% by weight of inorganic particles based on the total weight of the polyamide powder; which powders are equally suitable for coatings and for mouldings and components with improved mechanical properties.

    10.
    发明专利
    未知

    公开(公告)号：DE602004017643D1

    公开(公告)日：2008-12-18

    申请号：DE602004017643

    申请日：2004-12-01

    Applicant: EVONIK DEGUSSA GMBH

    Inventor： LORTZ WOLFGANG ,  BATZ-SOHN CHRISTOPH

    IPC: B01F23/47 ,  B02C19/06

    Abstract: A method and device for producing a finely divided dispersion of solids having a mean particle size of 10 nm to 10 µm, in which at least two flows of a predispersion are sprayed by means of pumps, preferably high-pressure pumps, through one nozzle each into a grinding chamber enclosed by a reactor housing onto a collision point, wherein the grinding chamber is flooded with the predispersion and the finally divided dispersion is removed from the grinding chamber by the overpressure of the predispersion continuing to flow into the grinding chamber.

Patent Agency Ranking