Patents by Inventor Wolfgang Swodenk

Wolfgang Swodenk has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the production of primary alkenols
    Patent number: 3949007
    Abstract: Primary alkenols are produced by transesterifying a primary alkenol acetate with methanol in the presence of the hydroxide or alkoxide of a metal in the first to third main group of the Periodic Table as catalyst. Preferably the methanol is present in large excess and the by-product methyl acetate is removed as an azeotrope with the excess methanol. The reaction is preferably effected under anhydrous conditions and it is substantially quantitative.
    Type: Grant
    Filed: July 12, 1973
    Date of Patent: April 6, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Johann Grolig, Gerhard Scharfe, Wolfgang Swodenk
  • Process for the production of ketazines
    Patent number: 3933910
    Abstract: A process for the production of ketazine corresponding to the general formula ##EQU1## in which: R.sub.1 and R.sub.2 are independently linear or branched alkyl radicals of from 1 to 8 carbon atoms or a phenyl radical, or taken together with the carbon atom to which they are attached represent a carbocyclic ring with 5 to 8 carbon atoms or a cyclic alkyl radical with 5 to 8 carbon atoms, comprising reacting ammonia, hydrogen peroxide and a ketone of the general formulaR.sub.1 - CO - R.sub.2in which R.sub.1 and R.sub.2 are as defined above, in the presence of hydrocyanic acid.
    Type: Grant
    Filed: May 14, 1974
    Date of Patent: January 20, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut Waldmann, Hermann Seifer, Wulf Schwerdtel, Wolfgang Swodenk, Kurt-Wilheim Eichenhofer
  • Catalyst for the preparation of cyclohexanone from phenol and process therefor
    Patent number: 3932514
    Abstract: A palladium catalyst on an aluminum spinel carrier is used to selectively hydrogenate phenol to cyclohexanone.
    Type: Grant
    Filed: February 23, 1973
    Date of Patent: January 13, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hermann Thelen, Kurt Halcour, Wulf Schwerdtel, Wolfgang Swodenk