Patents by Inventor Gert Mallok

Gert Mallok 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 preparing wax esters and hydrogenation of wax esters to fatty alcohols
    Patent number: 5608122
    Abstract: A liquid starting mixture contains at least one fatty acid having 6 to 30 carbon atoms per molecule and per mole of fatty acid comprises 1.0 to 1.5 moles of fatty alcohol having 6 to 30 carbon atoms. An intermediate product which contains at least 50% by weight is prepared from the liquid starting product, which is passed at temperatures from about 120 to 320.degree. C. through a stirring zone and is sprayed and water vapor is removed. The intermediate product is hydrogenated to produce a raw product, which contains at least 75% by weight fatty alcohol. A partial stream which contains fatty alcohol is removed from the raw product and is added to the liquid starting mixture. The intermediate product which contains at least 50% by weight wax ester can be prepared without use of a solids containing catalyst.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: March 4, 1997
    Assignee: Metallgesellschaft AG
    Inventors: Henning Buchold, Fritz-J urgen G artner, Gert Mallok, Eberhard Schlichting, Hans-Martin St onner