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    METHOD FOR PREPARING VINYLSILANE
    1.
    发明专利
    METHOD FOR PREPARING VINYLSILANE 审中-公开

    公开(公告)号：JP2002105087A

    公开(公告)日：2002-04-10

    申请号：JP2001217030

    申请日：2001-07-17

    Applicant: BASF AG

    Inventor： PREISS THOMAS DR ,  FRIEDRICH HOLGER DR ,  HENKELMANN JOCHEM

    IPC: C07B61/00 ,  C07F7/14 ,  C07F7/18 ,  C08F4/06 ,  C08F4/42

    Abstract: PROBLEM TO BE SOLVED: To provide a method for preparing a vinylsilane by which a high conversion rate accompanied with a high selectivity can be achieved with an ultrahigh space time yield. SOLUTION: A silane is added to a liquid phase containing an acetylenic hydrocarbon and a catalyst in the method for preparing the vinylsilane comprising reacting the acetylenic hydrocarbon with the silane having at least one silicon-bound hydrogen atom in the presence of a catalyst in the liquid phase. In particular, the reaction is carried out under a superatomic pressure and the spent acetylenic hydrocarbon is replenished during the reaction so as to maintain a pressure which is constant during the entire reaction. As a specific example, acetylene is reacted with trimethoxysilane in the presence of a tetramethyldivinyldisiloxaneplatinum solution in xylene as the catalyst in the xylene liquid phase to produce trimethoxyvinylsilane in high yield.

    PRODUCTION OF ACYLOXYALKOXYSILANE
    4.
    发明专利
    PRODUCTION OF ACYLOXYALKOXYSILANE 失效

    公开(公告)号：JPH10168083A

    公开(公告)日：1998-06-23

    申请号：JP21779997

    申请日：1997-08-12

    Applicant: BASF AG

    Inventor： FRIEDRICH HOLGER DR ,  LEUTNER BERND DR ,  MRONGA NORBERT DR ,  SCHMID RAIMUND DR

    IPC: C07F7/04

    Abstract: PROBLEM TO BE SOLVED: To directly obtain the subject compound through the one-pot process by reaction between a specific halosilicon, a carboxylic acid salt or its anhydride and an alcohol without isolation of tetracyloxysilane, as side-reactions are suppressed. SOLUTION: A halosilicon of the formula: SiX4 (X is fluorine, chlorine, bromine, iodine) (for example, tetrachlorosilane) is allowed to react with compounds of the formula: MR R is formula I [Z is an unsubstituted, or a halogen- monosubstituted or polysubstituted 1-20C alkyl, a 2-20C alkenyl, a 2-20C alkynyl, a group of formula: -(CH2 )p A (p is 0-6; A is an unsubstituted or alkyl-substituted 3-20 membered hydrocarbon ring)]; M is a metal in I and II main groups in the periodic table} and a compound of the formula: HR [R is the formula O-Y (Y is the same as Z)] or an anhydride of formula II and a compound of the formula: HR to give the objective acyloxyalkoxysilane represented by the formula III (m, n are each 1-3; m+n is 4) through the one-pot process.

    METHOD FOR CONTROLLING FLOW RESISTANCE OF DIAPHRAGM
    5.
    发明专利
    METHOD FOR CONTROLLING FLOW RESISTANCE OF DIAPHRAGM 失效

    公开(公告)号：JPH10273792A

    公开(公告)日：1998-10-13

    申请号：JP33406897

    申请日：1997-12-04

    Applicant: BASF AG

    Inventor： FRIEDRICH HOLGER DR ,  HOPPE KLAUS-DIETER DR ,  LEUTNER BERND DR ,  SCHLAEFER DIETER DR ,  HECKY KURT

    IPC: C25B13/08 ,  C25B13/00 ,  C25B15/00

    Abstract: PROBLEM TO BE SOLVED: To control the flow resistance of a diaphragm in a desired range with good reliability by treating the diaphragm based on a fibrous material with a fluorine-contg. dispersion during or after the production of the diaphragm. SOLUTION: A diluent, sodium chloride, sodium hydroxide, sterilizer, surfactant, antifoaming agent, etc., are incorporated into a powdered and cleaned fiber to obtain a fibrous aq. slurry. A dispersion contg. a fluorine-contg. component and a soln. contg. the precursor of ZrO2 , as required, are added to the slurry while agitating to produce a recirculating diaphragm. Meanwhile, the diaphragm treatment is conducted during electrolysis, preferably during alkali chloride electrolysis. The amt. of the fluorine-contg. component to be used and incorporated in the dispersion is preferably controlled to 0.1 to 30 wt.% of the fibrous material in the diaphragm, and the fluorine-contg. component used in the diaphragm should be present at 30 to 500 g/m with respect to the area of the diaphragm.

    Preparation of alkoxy-silane compounds containing vinyl ether groups
    8.
    发明专利
    Preparation of alkoxy-silane compounds containing vinyl ether groups 未知

    公开(公告)号：DE19649998A1

    公开(公告)日：1997-06-19

    申请号：DE19649998

    申请日：1996-12-03

    Applicant: BASF AG

    Inventor： KROENER HUBERTUS DR ,  FRIEDRICH HOLGER DR ,  HEIDER MARC DR ,  GERST MATTHIAS DR

    IPC: C07F7/18

    Abstract: The preparation of compounds of formula CH2=CH-O-X-CH2CH2SiRy(OR')3-y (I) comprises reacting divinyl ethers of formula CH2=CH-O-X-CH=CH2 (II) with silanes of formula HSiRy(OR')3-y (III) at 70 - 150 deg C in the presence of a homogeneous hydrosilation catalyst. The catalyst is a platinum or rhodium compound, and the amount of Rh or Pt is 0.05 - 10 ppm with respect to (II and (III). R, R' = 1-6C alkyl or 6-10C aryl; X = 1-20C hydrocarbon, optionally substituted by halo and/or containing O atoms; and y = 0 - 2.

    10.
    发明专利
    未知

    公开(公告)号：DE19650316A1

    公开(公告)日：1998-06-10

    申请号：DE19650316

    申请日：1996-12-04

    Applicant: BASF AG

    Inventor： FRIEDRICH HOLGER DR ,  HOPPE KLAUS-DIETER DR ,  LEUTNER BERND DR ,  SCHLAEFER DIETER DR ,  HECKY KURT

    IPC: C25B13/08 ,  C25B13/00 ,  C25B15/00 ,  C25B13/04

    Abstract: Modification of the cross-flow resistance of a diaphragm based on fibrous material comprises treating the diaphragm, during or after manufacture, with a dispersion of a component (I) containing fluorine and optionally a solution containing a zirconium dioxide (ZrO2) precursor. Preferably treatment is carried out during electrolysis. The amount of (I) used is 0.1-30 wt.% w.r.t. the fibrous material of the diaphragm and the amount applied is 30-500 g/m diaphragm surface area.

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