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    11.
    发明专利
    未知

    公开(公告)号：DE3876263D1

    公开(公告)日：1993-01-14

    申请号：DE3876263

    申请日：1988-02-12

    Applicant: DEGUSSA

    Inventor： KLEINSCHMIT PETER DR ,  GRETHE HORST ,  PANSTER PETER DR

    IPC: B01J20/10 ,  C07F7/18 ,  C09K3/00

    Abstract: New organosilanes contg. benzoylthiourea gps. are of formula (I): R1=phenyl or nitrophenyl; R2=a trialkoxysilyl-alkyl, -cycloalkyl, -cycloalkyl-alkyl, -alkyl-cycloalkyl-alkyl, -phenyl-alkyl or -alkyl-phenyl-alkyl gp. of the formula: R4-Si(OR)3 R4=1-10C alkylene, 5-8C cycloalkylene or a gp. of the formulae (i) or (ii), n=1-6; R=linear or branched 1-3C alkyl; R3=as R2 or H. (I) are prepd. by reacting an organosilane-amine (II) with an isothiocyanate (III) of the formulae (II) or (III) below at or above room temp. up to 100 deg.C, pref. at -30 deg.C to +50 deg.C, and normal or a higher pressure, corresp. to the sum of the partial pressures at the temp. concerned, until reaction of the isothiocyanate function in (III) is complete. A linear or branched 1-3C alcohol, acetone or MEK is used as solvent in the reaction.

    13.
    发明专利
    未知

    公开(公告)号：DE59707913D1

    公开(公告)日：2002-09-12

    申请号：DE59707913

    申请日：1997-10-28

    Applicant: DEGUSSA

    Inventor： BALDUF DR ,  WIELAND DR ,  LORTZ DR ,  POHLISCH DR ,  GOEBEL DR ,  GRETHE HORST

    IPC: C07F7/18

    Abstract: A continuous process for the production of gamma -aminopropyl- trialkoxysilane and mixtures of primary and secondary aminosilanes comprises: (a) mixing gamma -chloropropyl- trialkoxysilane with ammonia in a desired ratio of reactants; (b) heating the mixture to the reaction temperature; (c) allowing the reaction to proceed in a pressure reactor with a sufficient residence time for complete conversion, during which the reaction mixture may pass through several temperature zones; (d) subsequently cooling the reaction mixture and if necessary adding an organic solvent as extraction agent; (e) separating the product gamma -amino trialkoxysilane or mixtures of primary and secondary aminosilanes from the resulting two-phase mixture, optionally by extraction; and (f) recycling the ammoniacal phase to the reactor either at stage the mixing or reaction stage.

    ORGANOPOLYSILOXANES WHICH CONTAIN SULFONATE GROUPS, PROCESS FOR PREPARING THEM AND THEIR USE
    18.
    发明专利
    ORGANOPOLYSILOXANES WHICH CONTAIN SULFONATE GROUPS, PROCESS FOR PREPARING THEM AND THEIR USE 未知

    公开(公告)号：DE3361401D1

    公开(公告)日：1986-01-16

    申请号：DE3361401

    申请日：1983-05-25

    Applicant: DEGUSSA

    Inventor： PANSTER PETER DR ,  GRETHE HORST ,  KLEINSCHMIT PETER DR

    IPC: B01J39/16 ,  B01J39/17 ,  B01J39/18 ,  C08G77/00 ,  C08G77/06 ,  C08G77/28 ,  C08G77/38 ,  C08G77/398 ,  C08G77/50

    Abstract: Organopolysiloxanes are described with the same or different units of the formula: (O3/2Si-R1-SO3-)xMx+(1) in which R1 is alkyl, x is dependent on M and signifies a number from 1 to 4 and M represents hydrogen or a mono- to tetravalent metal ion and the valences of the oxygen atoms are saturated by silicon atoms of other groups of the formula (1), optionally by inserting cross-linking silicon, titanium or aluminum compounds and/or by di-, tri- and tetrasulfide units of the formula: (2) in which the substituents R1 have the same meaning as in (1) and can be the same or different, wherein the ratio of the sum of silicon atoms in (1) and (2) to the silicon, titanium and aluminum atoms of the cross-linking agent ranges from 1:0 to 1:10. Furthermore, the method of obtaining the organopolysiloxanes containing sulphonate groups and the use thereof as strongly acidic cation exchangers are described.

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