Patents by Inventor David K. Potter

David K. Potter 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).

  • Patent number: 8476403
    Abstract: The present invention provides a cross linked polyolefin thermoset material, comprising maleic anhydride functionalized reactive polyolefin wax cross linked with a polyamine. The thermoset may be made by a method involving reaction of a maleic anhydride functionalized reactive polyolefin wax with a polyamine. The polyolefin may be polyethylene, polypropylene and their copolymers. The polyamine is a primary or secondary alkyl polyamines, alkyl ether polyamines, aryl polyamines. Polyols may be used instead of polyamines, for example alkyl polyols, alkyl ether polyols or aryl polyols.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: July 2, 2013
    Assignee: McMaster University
    Inventors: David K. Potter, Tayyab Hameed
  • Publication number: 20110098415
    Abstract: The present invention provides a cross linked polyolefin thermoset material, comprising maleic anhydride functionalized reactive polyolefin wax cross linked with a polyamine. The thermoset may be made by a method involving reaction of a maleic anhydride functionalized reactive polyolefin wax with a polyamine. The polyolefin may be polyethylene, polypropylene and their copolymers. The polyamine is a primary or secondary alkyl polyamines, alkyl ether polyamines, aryl polyamines. Polyols may be used instead of polyamines, for example alkyl polyols, alkyl ether polyols or aryl polyols.
    Type: Application
    Filed: March 18, 2009
    Publication date: April 28, 2011
    Applicant: MC-MASTER UNIVERSITY
    Inventors: David K. Potter, Tayyab Hameed
  • Publication number: 20080286514
    Abstract: The present provides a bondably coated metallic member comprising a metallic member having a low surface energy polymeric coating, said low surface energy polymeric coating having been surface activated on at least a portion thereof, and having on said surface-activated portion a bondable high surface energy polymeric coating. The present invention also provides a bondably-coated metallic pipe comprising metallic pipe having a low surface energy mainline polymeric coating thereon extending over the pipe except at a bare zone adjacent each end of the pipe that is free from said main-line coating; a portion of said mainline coating adjacent each bare zone having been surface activated and having on said surface activated portion a bondable high surface energy polymeric coating.
    Type: Application
    Filed: April 20, 2006
    Publication date: November 20, 2008
    Applicant: SHAWCOR LTD.
    Inventors: Catherine Lam, David K. Potter, Robert E. Steele
  • Patent number: 5705561
    Abstract: A crosslinkable acrylic copolymer sealant composition has a stabilized viscosity in that the viscosity does not unduly increase nor does the material gel on storage for periods of time up to and including one year. The stabilized viscosity is unexpectedly achieved by adding moisture scavengers either before and/or during the polymerization of the various monomers. The sealant composition is suitable for use in high movement applications as well as to metal and glass substrates.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: January 6, 1998
    Assignee: Tremco Incorporated
    Inventors: Waldemar E. Kozakiewicz, David K. Potter, Steven A. Young
  • Patent number: 5087435
    Abstract: A fused compact of polycrystalline diamond is formed by dynamically shocking either fine diamond crystals or a mixture of fine diamond crystals and graphite.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: February 11, 1992
    Assignee: California Institute of Technology
    Inventors: David K. Potter, Thomas J. Ahrens