Patents by Inventor Marion G. Waggoner

Marion G. Waggoner 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).

  • Extruding process for preparing functionalized polyolefin polymers
    Patent number: 4639495
    Abstract: An extruder process for grafting ethylenically unsaturated monomers onto polyolefin polymers through the use of peroxide initiators without evidencing degradation of the base polymer whereby the components are concurrently melted and homogeneously mixed in an intensive mixing zone of an extruder, passed into a reduced pressure zone to remove excess monomer and passed through the remainder of the extruder process.
    Type: Grant
    Filed: April 14, 1983
    Date of Patent: January 27, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Marion G. Waggoner
  • Polyoxymethylene/polyurethane compositions containing ethylene bis-stearamide
    Patent number: 4582869
    Abstract: Polyoxymethylene/thermoplastic polyurethane compositions having 5-40 weight percent polyurethane are modified by incorporating therein 0.2-1.0 weight percent ethylene bis-stearamide to improve mold release and mold deposit.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: April 15, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Marion G. Waggoner
  • Molding blends
    Patent number: 4391936
    Abstract: Certain polyamide molding blends containing carbon black and nigrosine are described which have greater elongation and impact strength than blends of such polyamide and carbon black alone.
    Type: Grant
    Filed: August 11, 1982
    Date of Patent: July 5, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Marion G. Waggoner