Patents by Inventor Johan D. Logemann

Johan D. Logemann 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).

  • Continuous mass preparation of polymers
    Patent number: 4209599
    Abstract: A process for the continuous mass polymerization of olefinically unsaturated monomers in the presence of a polymerization initiator. The polymerization is carried out in one or more tubular reactors provided with internal static mixing elements. A portion of the reaction mass produced in the reactor is recirculated back to the reactor as feed.
    Type: Grant
    Filed: January 13, 1978
    Date of Patent: June 24, 1980
    Assignee: Synres International B.V.
    Inventors: John W. Brady, Pieter Eijsberg, Johan D. Logemann