Patents by Inventor Helmut Zinke-Allmang

Helmut Zinke-Allmang 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).

  • Method of producing saturated C3-C20-alcohols
    Patent number: 6765119
    Abstract: The invention relates to a process for the preparation of saturated C3-C20-alcohols in which a liquid hydrogenation feed comprising at least one C3-C20-aldehyde is passed over a bed of a hydrogenation catalyst in the presence of a hydrogen-containing gas, which comprises adding to the hydrogenation feed an amount, homogeneously soluble therein, of a salt-like base. The addition of base suppresses side reactions, such as acetalization, aldolization, Tischtschenko reaction or ether formation.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: July 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Herwig Hoffmann, Michael Röper, Heinrich-Josef Blankertz, Max Strohmeyer, Helmut Walz, Helmut Zinke-Allmang
  • Method of producing saturated C3-C20-alcohols
    Publication number: 20030114720
    Abstract: The invention relates to a process for the preparation of saturated C3-C20-alcohols in which a liquid hydrogenation feed comprising at least one C3-C20-aldehyde is passed over a bed of a hydrogenation catalyst in the presence of a hydrogen-containing gas, which comprises adding to the hydrogenation feed an amount, homogeneously soluble therein, of a salt-like base. The addition of base suppresses side reactions, such as acetalization, aldolization, Tischtschenko reaction or ether formation.
    Type: Application
    Filed: November 14, 2002
    Publication date: June 19, 2003
    Inventors: Herwig Hoffmann, Michael Roper, Heinrich-Josef Blankertz, Max Strohmeyer, Helmut Walz, Helmut Zinke-Allmang
  • Manufacture of dialkyl-ketals
    Patent number: 4136124
    Abstract: Dialkyl-ketals are manufactured by reacting ketones with alkanols in the presence of an acid condensing agent and of an at least equivalent amount, based on the ketone, of anhydrous calcium sulfate.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: January 23, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Zinke-Allmang, Walter Scheidmeir