Patents by Inventor Gary E. Sitz

Gary E. Sitz 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 polymer-modified asphalts and asphalts emulsions
    Patent number: 5019610
    Abstract: Disclosed is a polymer-modified asphalt composition which comprises a mixture of (a) a blend of from about 10 to 75 weight-percent of one or more of a thermoplastic rubber polymer and from about 90 to 25 weight-percent of one or more of a fatty dialkyl amide, and (b) an asphalt cement. Also disclosed is a method of preparing such compositions, which requires gentle stirring only.
    Type: Grant
    Filed: October 18, 1990
    Date of Patent: May 28, 1991
    Assignee: Sherex Chemical Company, Inc.
    Inventors: Gary E. Sitz, Roger K. Chatterjee
  • Benzylic oxidation process
    Patent number: 4243612
    Abstract: A vapor phase process for the direct oxidation of a methyl benzene to the corresponding aldehyde derivative; e.g., conversion of toluene to benzaldehyde, wherein said oxidation is effected in the presence of a catalyst system consisting essentially of uranium and molybdenum oxides in combination with an oxide of lead, tin, zirconium, cadmium, antimony or nickel.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: January 6, 1981
    Assignee: Ashland Oil, Inc.
    Inventors: Peter E. Throckmorton, Gary E. Sitz, Robert A. Grimm