Patents by Inventor Peter Pietschmann

Peter Pietschmann 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 a copolymer from a gaseous monomer and a liquid monomer
    Patent number: 4078136
    Abstract: A process for the production of a copolymer from at least one monomer which is gaseous under the polymerization conditions and at least one monomer that is liquid under the polymerization conditions by copolymerizing the same discontinuously in an aqueous media employing a polymerization vessel under conditions whereby a gas space is required, said gas space being provided by a second vessel connected to the polymerization vessel through a closeable connection, whereby on completion of polymerization, the closeable connection is closed in order to retain the gaseous monomer under pressure.
    Type: Grant
    Filed: September 1, 1976
    Date of Patent: March 7, 1978
    Assignee: Wacker-Chemie GmbH
    Inventors: Peter Pietschmann, Peter Ludwig