Patents by Inventor Edwin S. Smith

Edwin S. Smith 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).

  • Method of removing vinyl chloride monomer from polyvinyl chloride resins
    Patent number: 4205149
    Abstract: This invention relates to a method for the removal of vinyl chloride monomer from polyvinyl chloride resins by lowering the Tg (glass transition temperature) of the polyvinyl chloride resins at an elevated temperature while in the presence of reduced pressure thus allowing the vinyl chloride monomer to escape from the polyvinyl chloride resins.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: May 27, 1980
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Frank A. Cich, Emmett J. Glazer, Edwin S. Smith
  • Vinyl chloride polymerization method
    Patent number: 4187363
    Abstract: A method of achieving chain transfer in the polymerization of a vinyl chloride monomer to polyvinyl chloride, utilizing aldehydes of 3 to 6 carbon atoms as the chain transfer agent and treating the polymerization mixture with an alkali bisulfite, such as sodium bisulfite or potassium bisulfite solution after the vinyl chloride monomer has been stripped from the polymerization mixture to obtain modified polyvinyl chloride having improved compounded physical properties.
    Type: Grant
    Filed: May 24, 1978
    Date of Patent: February 5, 1980
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Richard A. Marshall, Edwin S. Smith, Frank A. Cich
  • Dollhouse
    Patent number: D255257
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: June 3, 1980
    Inventors: Edwin S. Smith, Jacquelene H. Smith