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    METHOD FOR MANUFACTURING ORGANOSILYLALKYLPOLYSULFANE
    2.
    发明专利
    METHOD FOR MANUFACTURING ORGANOSILYLALKYLPOLYSULFANE 失效

    公开(公告)号：JP2001270886A

    公开(公告)日：2001-10-02

    申请号：JP2001051228

    申请日：2001-02-26

    Applicant: DEGUSSA

    Inventor： MICHEL RUDOLF ,  MUENZENBERG JOERG ,  WILL WERNER ,  ZEZULK GERD RAINHARD

    IPC: C07F7/18

    Abstract: PROBLEM TO BE SOLVED: To obtain an organosilane polysulfide having slight color and smell. SOLUTION: An organosilylalkylpolysulfane of formula I is manufactured by reacting an organosilylalkyl halogenide of general formula II with an anhydrous or almost anhydrous ionic sulfide and elemental sulfur. In this process, the elemental sulfur and the organosilylalkyl halogenide are charged into a polar organic solvent, and the ionic sulfide is charged into the resulting suspension. (R1R2R3SiR4)2SX (I) [wherein, R1 to R3 are each a 1-8C alkyl and/or a 1-8C alkoxy, or an aryl, and one or more alkoxy groups are present; R4 is a 1-8C divalent alkylene or (CH2)nC6H4(CH2)n (wherein, n=1-4; and x>1)]. R1R2 R3SiR4X (II) [wherein, R1 to R4 are same as defined above; and X is chlorine, bromine or iodine].

    METHOD FOR PRODUCING ORGANOSILYLALKYLPOLYSULFANE
    3.
    发明专利
    METHOD FOR PRODUCING ORGANOSILYLALKYLPOLYSULFANE 审中-公开

    公开(公告)号：JP2002155092A

    公开(公告)日：2002-05-28

    申请号：JP2001212567

    申请日：2001-07-12

    Applicant: DEGUSSA

    Inventor： ALIG ALFRED ,  BATZ-SOHN CHRISTOPH DR ,  DESCHLER ULRICH ,  MICHEL RUDOLF ,  MUNZENBERG JORG ,  SONNENSCHEIN RAYMUND DR ,  WILL WERNER ,  ZEZULK GERD RAINHARD ,  RUTZEIL KARL-HEINZ

    IPC: C07F7/08 ,  C07F7/18

    Abstract: PROBLEM TO BE SOLVED: To provide one more method for producing an organosilylalkylpolysulfane with causing only a small amount of by-product to be abandoned. SOLUTION: This method for producing an organosilylalkylpolysulfane is characterized in that in a method for producing an organosilylalkylpolysulfane represented by general formula I (R1R2R3SiR4)2Sx (I), an organosilylalkylpolysulfane represented by general formula II (R1R2R3SiR4)2Sy (II) is reacted with an ionic sulfide represented by general formula III M+2S2- (III) and an organosilylalkyl halide represented by general formula (IV) R1R2 R3SiR4X (IV), the long-chain organosilylalkylpolysulfane represented by general formula II and the organosilylalkyl halide represented by general formula (IV) are initially introduced into the reaction vessel and the ionic sulfide represented by general formula III is added to the solution in several portions.

    PRODUCTION OF HIGH-PURITY ORGANOSILICON DISULFANE
    7.
    发明专利
    PRODUCTION OF HIGH-PURITY ORGANOSILICON DISULFANE 失效

    公开(公告)号：JPH11116585A

    公开(公告)日：1999-04-27

    申请号：JP22315598

    申请日：1998-08-06

    Applicant: DEGUSSA

    Inventor： MUENZENBERG JOERG ,  WILL WERNER ,  ZEZULKA GERD

    IPC: C07F7/08 ,  C07F7/18

    Abstract: PROBLEM TO BE SOLVED: To produce the subject new high-purity compound useful for the production or the like of tires by reacting elementary sulfur with an anhydrous sulfide and a specific organosilicon compound in a specific proportion in a polar organic solvent and further adding and reacting an anhydrous sulfide therewith. SOLUTION: Elementary sulfur and a part of all of an anhydrous sulfide represented by the formula MeS [Me is an alkali (alkaline earth) metal, zinc or ammonium] are dissolved or suspended in a polar organic solvent at (1:0.2) to (1:0.9) molar ratio and an organosilicon compound represented by formula I [Z is a group represented by formula II (R1 is a 1-5C alkyl, a 5-8C cycloalkyl, benzyl or phenyl; R is a 1-5C alkoxy, a 5-8C cycloalkoxy, phenoxy or benzyloxy); Alk is a 1-10C bivalent saturated hydrocarbon or a group represented by formula III; Hal is Cl or Br] and the resultant solution or suspension is then reacted with the compound represented by the formula I so as to provide (1.2:1) to (2:1) molar ratio of the compound represented by the formula I to S. A compound represented by the formula; Me2 S in an amount so that the sulfide and the total amount of the elementary sulfur are nearly equimolar is added thereto. The resultant product is subsequently isolated to provide a high-purity organosilicon disulfane represented by formula IV.

    DISPERSION CONTAINING TITANIUM DIOXIDE
    8.
    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。

    PROCESS FOR PREPARING SILICON DIOXIDE DISPERSIONS
    9.
    发明申请
    PROCESS FOR PREPARING SILICON DIOXIDE DISPERSIONS 审中-公开
    制备二氧化硅分散体的方法

    公开(公告)号：WO2009074440A3

    公开(公告)日：2010-04-22

    申请号：PCT/EP2008065917

    申请日：2008-11-20

    Applicant: EVONIK DEGUSSA GMBH ,  LORTZ WOLFGANG ,  WILL WERNER ,  REITZ SASCHA ,  PERLET GABRIELE

    Inventor： LORTZ WOLFGANG ,  WILL WERNER ,  REITZ SASCHA ,  PERLET GABRIELE

    IPC: C01B33/141

    CPC classification number: C01B33/1417 ,  C01B33/1415

    Abstract: Process for preparing an alkaline dispersion of aggregated silicon dioxide particles by dividing a preliminary dispersion within a pH of 3 to 5 into at least two streams, placing these streams under a pressure of at least 50 bar and depressurizing them to a collision point, each via one nozzle, in a grinding chamber, and admixing the dispersion that runs off at the bottom, while still in the grinding chamber, with an alkaline substance in an amount such that the dispersion overall has a pH of more than 7.

    Abstract translation: 通过将3至5的pH范围内的预分散体分成至少两股流，将这些物流放置在至少50巴的压力下并将其减压至碰撞点，从而制备聚集的二氧化硅颗粒的碱性分散体的方法， 一个喷嘴，在研磨室中，并且在仍然在研磨室中的底部上分散的分散体与碱性物质混合，使得分散体总体上具有大于7的pH。

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