Patents by Inventor David Roggeman

David Roggeman 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 polymerization reactor
    Publication number: 20050245696
    Abstract: A process for the continuous polymerization of monomer, the process comprising (a) adding monomer and catalyst to an annulus within an annular reactor to form a polymerization medium within the annulus, where the annulus includes the space between an outer casing wall and an inner tubular wall, (b) allowing the polymerization medium a sufficient residence time within the annulus to provide a living polymer product, and (c) removing the polymer product from the annulus.
    Type: Application
    Filed: March 1, 2005
    Publication date: November 3, 2005
    Inventors: William Cole, David Roggeman
  • Removing gelled unsaturated elastomers from polymerization equipment associated with their production
    Publication number: 20050026797
    Abstract: A process for removing residual polymer from polymerization equipment by combining a degelling agent, residual polymer, and solvent.
    Type: Application
    Filed: July 23, 2004
    Publication date: February 3, 2005
    Inventors: James Pawlow, David Roggeman, Daniel Graves, William Hergenrother, James Oziomek