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    152.
    发明专利
    未知

    公开(公告)号：DE3579406D1

    公开(公告)日：1990-10-04

    申请号：DE3579406

    申请日：1985-06-26

    Applicant: DEGUSSA

    Inventor： KERNER DIETER DR ,  KLEINSCHMIT PETER DR ,  PARKHOUSE ALAN ,  WOLFF SIEGFRIED

    IPC: C08K9/06 ,  C08L21/00 ,  C09C3/12

    Abstract: The invention is directed to the modification of synthetic, silicatic fillers with water insoluble sulfur containing organosilicon compounds. For this purpose, the fillers are converted into an aqueous suspension and treated with the organosilicon compounds, optionally in the presence of an emulsifier. The thus modified filler in vulcanized rubber mixtures results in a clear improvement in the industrial properties of the rubber.

    157.
    发明专利
    未知

    公开(公告)号：IT1207020B

    公开(公告)日：1989-05-17

    申请号：IT5119379

    申请日：1979-12-24

    Applicant: DEGUSSA

    Inventor： SCHWARZ RUDOLF ,  KLEINSCHMIT PETER ,  LIEDTKE CHISTA ,  WOLFF SIEGFRIED

    IPC: C08L7/00 ,  C07F7/08 ,  C07F7/12 ,  C07F7/18 ,  C08G75/02 ,  C08G75/14 ,  C08K5/5425 ,  C08K5/548 ,  C08L21/00 ,  C08L23/00 ,  C08L33/00 ,  C08L33/02 ,  C08L101/00 ,  C07F

    Abstract: Novel bis-(silylethyl)-oligosulphides are obtained by reacting a vinyl silane of the formula (CH2=CH)m-SiRn1R4-(m+n) in which R represents chlorine, bromine, iodine, C1-C3-alkoxy, 2-methoxyethoxy, 2-ethoxyethoxy or hydroxy, R1 represents C1-C3-alkyl, phenyl or C5-C7-cycloalkyl, n is 0, 1 or 2, m is 1 or 2 and m+n is 1, 2 or 3 with sulphur as well as in a given case hydrogen sulphide in molar ratios of vinyl silane to sulphur of from 1:2.5 to 1:10 and vinyl silane to hydrogen sulphide of from 1:0 to 1:5 at temperatures between about 100 DEG and 200 DEG C. under pressure of from 1 to 25 bars (total pressure at the reaction) temperature) and in the presence of sulphidation catalysts known per se, in a given case followed by hydrolysis or partial hydrolysis of the reaction products. The bis-(silylethyl)-oligosulphides are used as reinforcing additives (adhesive agents) in crosslinkable rubber mixtures containing silicate fillers and in a given case carbon black as well as in a given case sulphur and other customary constituents.

    158.
    发明专利
    未知

    公开(公告)号：MX157074A

    公开(公告)日：1988-10-26

    申请号：MX920780

    申请日：1980-08-14

    Applicant: DEGUSSA

    Inventor： WOLFF SIEGFRIED ,  ROTHBUHR LOTHAR DR ,  GREWATTA HEINZ

    IPC: C08K3/00 ,  C04B20/10 ,  C08K5/00 ,  C08K5/5419 ,  C08K9/06 ,  C08L1/00 ,  C08L7/00 ,  C08L21/00 ,  C08L23/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L101/00 ,  C08K5/54 ,  C08L9/00

    Abstract: The invention relates to a silane/filler preparation, consisting essentially of from 5 to 70% by weight of at least one silane corresponding to the following formula Xp-CmH2m+1-pSiRn1(OR)3-n, I in which X=a halogen atom, preferably chlorine or bromine, p=1 or 2, m=1 to 5, R1=a C1-C5 alkyl group, C5-C8-cycloalkyl group or a phenyl group, R=a C1-C5-alkyl group, a C5-C8-cycloalkyl group, a phenyl group, a benzyl group or a C1-C5-alkoxy-C1-C5-alkyl group, and n=0, 1 or 2, and-respectively balanced to 100%-from 95 to 30% by weight of at lesat one inorganic filler, preferably carbon black and silicate fillers as, e.g., silica. There is also disclosed a process for the production of the silane/filler preparation and its use in optionally cross-linkable polymeric moulding compositions or vulcanizable or cross-linkable rubber moulding compositions such as sulphur-vulcanizable moulding compositions based on natural rubber and/or synthetic rubber.

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