Patents by Inventor Herbert Tunnell

Herbert Tunnell 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).

  • Oxygen tailoring of polyethylene resins
    Publication number: 20060038315
    Abstract: Methods of tailoring polyethylenes are contemplated utilizing 0.5 to 7.95 volume percent oxygen containing gases. The tailoring occurs in a melt-conveying zone of a mixer/extruder, and not in the feed or melting zones of a mixer/extruder. The effect of tailoring is to increase elasticity (G?/G?) of the polyethylenes more than 10 percent over similar polyethylenes that are extruded/mixed in the substantial absence of oxygen of oxygen containing gases.
    Type: Application
    Filed: July 19, 2005
    Publication date: February 23, 2006
    Inventors: Herbert Tunnell, Porter Shannon, Pradeep Shirodkar, Dongming Li, Thomas Veariel