Patents by Inventor Dave Keegan

Dave Keegan 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).

  • Method and compositions for reducing plate-out in the manufacture of plastic articles
    Patent number: 8003720
    Abstract: Chemical additives disclosed for reducing “plate-out” which have applications in polymers, such as polyolefins. It is possible to provide for a composition and a process for producing parts, sheet and film from polyolefin extrusion applications wherein the polyolefins are processed with a minimal quantity of “plate-out.” A polyolefin composition may contain a sorbitol-based clarifying system of a derivative of Dibenzylidene, along with one or more co-additives to achieve a reduction in undesirable plate-out.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: August 23, 2011
    Assignee: Milliken & Company
    Inventors: Dave Keegan, Shawn R. Sheppard, Dale W. Chandler, Jiannong Xu, Jiang Li, Keith Alan Keller
  • Method and compositions for reducing plate-out in the manufacture of plastic articles
    Publication number: 20060173109
    Abstract: Chemical additives disclosed for reducing “plate-out” which have applications in polymers, such as polyolefins. It is possible to provide for a composition and a process for producing parts, sheet and film from polyolefin extrusion applications wherein the polyolefins are processed with a minimal quantity of “plate-out.” A polyolefin composition may contain a sorbitol-based clarifying system of a derivative of Dibenzylidene, along with one or more co-additives to achieve a reduction in undesirable plate-out.
    Type: Application
    Filed: January 28, 2005
    Publication date: August 3, 2006
    Inventors: Dave Keegan, Shawn Sheppard, Dale Chandler, Jiannong Xu, Jiang Li, Keith Keller