Patents by Inventor Robert D. Rumfield

Robert D. Rumfield 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).

  • Acrylate or methacrylate modified alkyd resins and epoxy esters
    Patent number: 4014830
    Abstract: Air drying epoxy esters and alkyd resins are blended with polyacrylate esters of polyols. Coatings made from these blends have improved air-drying properties over the properties of coatings made from the unmodified resins, particularly in hardness and recoatability after overnight dry.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: March 29, 1977
    Assignee: Celanese Coatings & Specialties Company
    Inventor: Robert D. Rumfield