Patents by Inventor John S. Kowalczyk

John S. Kowalczyk 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 method for determining residual vinyl chloride content in a boiling aqueous polymer dispersion
    Patent number: 4243491
    Abstract: An improvement in a process for removing residual vinyl chloride monomer from an aqueous dispersion of a synthetic polymer wherein the dispersion is subjected to boiling conditions while being maintained in a vessel having a vapor space above the liquid level of the dispersion. In the improved process, the content of vinyl chloride monomer in the dispersion is continuously monitored by a boiling point suppression technique.
    Type: Grant
    Filed: July 11, 1978
    Date of Patent: January 6, 1981
    Assignee: The Dow Chemical Company
    Inventors: Eugene R. Moore, John S. Kowalczyk