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    1.
    发明专利
    未知

    公开(公告)号：DE50300055D1

    公开(公告)日：2004-09-23

    申请号：DE50300055

    申请日：2003-01-28

    Applicant: DEGUSSA

    Inventor： BATZ-SOHN DR ,  SCHARFE THOMAS ,  LORTZ DR

    IPC: B41M5/00 ,  B01J13/00 ,  B05D5/04 ,  B41M5/50 ,  B41M5/52 ,  C09C1/00 ,  C09C1/28 ,  C09D7/12 ,  C09D17/00 ,  C09D201/00

    Abstract: The stable, aqueous dispersion has between 20 and 80 Gew.-per cent related to the total quantity of the dispersion, metal and/or metalloid oxide powder present in the form of aggregates of primary particles. The powder has at least two types of powder with the same sign of surface charge for a given pH value and a zeta potential causing an electrostatic repulsion between the particles greater than the van der Waals attraction of the powder. The stable, aqueous dispersion has between 20 and 80 Gew.-per cent related to the total quantity of the dispersion, metal and/or metalloid oxide powder present in the form of aggregates of primary particles in the dispersion, where the mean diameter of the aggregate is between 10 and 300 nm and the mean diameter of the primary particles is between 5 and 50 nm. The powder has at least two types of powder with the same sign of surface charge for a given pH value and a zeta potential causing an electrostatic repulsion between the particles greater than the van der Waals attraction of the powder. AN Independent claim is also included for the following: a brushing-on color and a recording medium.

    2.
    发明专利
    未知

    公开(公告)号：DE50200179D1

    公开(公告)日：2004-02-05

    申请号：DE50200179

    申请日：2002-01-11

    Applicant: DEGUSSA

    Inventor： BATZ-SOHN DR ,  PANSTER DR ,  MICHEL RUDOLF ,  ALBERT DR ,  VRYENS DR

    IPC: C07B61/00 ,  C07F7/08 ,  C07F7/12 ,  C07F7/14

    Abstract: Production of 3-functionalized propyl silanes (I) by reacting allylic compounds (II) with silanes (III) at 0-200 degrees C and 0.8-25 bar in the presence of a platinum catalyst comprises using a (III):(II) molar ratio of 3-100. Production of 3-functionalized propyl silanes (I) by reacting allylic compounds of formula (II) with silanes of formula (III) at 0-200 degrees C and 0.8-25 bar in the presence of a platinum catalyst comprises using a (III):(II) molar ratio of 3-100:1 H2C=CH-CH2X (II) R R R SiH (III) X = Cl, Br, I, F, CN, SCN, SH, SR, OH, NRR or OR; R, R = 1-6C alkyl or 3-7C alkyl (sic); and R -R = H, halogen, 1-6C alkyl, 1-6C haloalkyl, 3-6C allyl (sic), 1-4C alkoxy, phenyl, aryl or aralkyl.

    6.
    发明专利
    未知

    公开(公告)号：DE50004141D1

    公开(公告)日：2003-11-27

    申请号：DE50004141

    申请日：2000-09-13

    Applicant: DEGUSSA

    Inventor： LUGINSLAND DR ,  BATZ-SOHN DR ,  MUENZENBERG DR ,  ZEZULKA GERD RAINHARD

    IPC: B60C1/00 ,  C07F7/08 ,  C07F7/12 ,  C07F7/18 ,  C07F19/00 ,  C08J5/00 ,  C08K3/00 ,  C08K3/36 ,  C08K5/548 ,  C08L21/00

    Abstract: A novel organosilicon compound is claimed. The novel organosilicon compound is of formula R )(R )Si-R -S-Zn-S-R -Si(R )(R )(R (I). R - R = H, halogen or optionally branched alkyl or alkoxyl; and R = optionally branched alkylidene. Independent claims are also included for: (a) the preparation of (I) by reaction of a mercaptan compound of formula R )(R )Si-R -S-H (II) and a zinc alcoholate; (b) rubber mixtures containing compound (s) (I), rubber, filler and optional rubber additives; (c) preparation of the rubber mixtures by reaction of the components given in (b); and (d) mould forms comprising the rubber mixtures.

    7.
    发明专利
    未知

    公开(公告)号：DE50104868D1

    公开(公告)日：2005-01-27

    申请号：DE50104868

    申请日：2001-09-06

    Applicant: DEGUSSA

    Inventor： KRAFCZYK DR ,  DESCHLER DR ,  MICHEL RUDOLF ,  BATZ-SOHN DR

    IPC: C07F7/18

    Abstract: Production of yellow bis-(3-(triethoxysilyl)-propyl)polysulfane (average sulfur chain length less than 4 and iodine color number no greater than 10 mg iodine/100 ml) comprises mixing neutral chloropropyltriethoxysilane with chloropropyltrichlorosilane and reaction with sodium sulfide and sulfur, disodium tetrasulfide and Nas2S or disodium trisulfide and Na2S in ethanol. A process for the production of yellow bis-(3-(triethoxysilyl)-propyl)polysulfone having an average sulfur chain length of less than 4 and an iodine color number of no greater than 10 mg iodine/100 ml comprises mixing neutral chloropropyltriethoxysilane with chloropropyltrichlorosilane followed by reaction with sodium sulfide (Na2S) and sulfur, disodium tetrasulfide (N2S4) and Nas2S or disodium trisulfide (Na2S3) and Na2S in ethanol.

    8.
    发明专利
    未知

    公开(公告)号：DE59909445D1

    公开(公告)日：2004-06-17

    申请号：DE59909445

    申请日：1999-06-02

    Applicant: DEGUSSA

    Inventor： LUGINSLAND DR ,  BATZ-SOHN DR

    IPC: C07F7/18 ,  C07F7/12 ,  C08G77/28 ,  C08G77/392 ,  C08G77/42 ,  C08G77/48 ,  C08K5/54 ,  C08K5/548 ,  C08L21/00

    Abstract: Oligomeric organosilane polysulfanes are novel. An oligomeric organosilane polysulfane (I) contains structural units (A), (B) and/or (C) in any linear, branched or cyclic arrangement whereby at least (A) or (B) is present. Independent claims are included for: (i) a process for the production of (I) by reaction of a compound of formula (1), optionally in a solvent and/or in the presence of a catalyst at 0-150 degrees C with addition of water to cause self polymerization or under analogous reaction conditions by copolymerization with a compound of formula (2); (ii) a rubber mixture (II) containing organosilane polysulfane (I); (iii) a process for the production of the rubber mixture (II) by addition of (I) and a filler to rubber; and (iv) molded articles prepared from (II). Y-Sx-(CH2)nSiR R R (1) RR R R Si (2) Y = H, CN, -(CH2)nSiRR R ; n = 1-8; R-R = H, 1-4C alkyl, 1-4C alkoxy, halogen or OSiR R R ; x = 1-8; z = 2-6; o, p, qq = 1-40; o+p+q = 2-40.

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