Patents by Inventor Kenneth Wayne Otto

Kenneth Wayne Otto 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).

  • Chlorination of butadiene
    Patent number: 4049729
    Abstract: A process of chlorinating butadiene in the vapor phase using a molar ratio of butadiene to chlorine of from 5:1 to 50:1 and preferably from 8:1 to 30:1 at from 70.degree. to 250.degree. C., separating the thus formed dichlorobutenes from the unreacted butadiene by condensing them in a scrubber-cooler wherein the heat required to vaporize the makeup liquid butadiene feed stream is provided by the condensing dichlorobutenes.
    Type: Grant
    Filed: September 17, 1969
    Date of Patent: September 20, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Kenneth Wayne Otto, Jimmy L. Hatten