Patents by Inventor Bob Larsen

Bob Larsen 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).

  • Process for making a metal-polymer composite having an irradiated polymer coating
    Patent number: 7371432
    Abstract: A process for making a metal-polymer composites suitable for shaping into container end panels having improved resistance to feathering and angel hair formation. A polymer coating is applied to a metal sheet. The polymer coating includes at least one cured polymer selected from polyolefins, anhydride modified polyolefins, epoxies, and phenoxies. The polymer coating on the composite is then irradiated with an electron beam, thereby scissioning chains in the cured polymer. The metal sheet preferably comprises an aluminum alloy and the polymer coating preferably comprises maleic anhydride modified polyropylene.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: May 13, 2008
    Assignee: Alcoa Inc.
    Inventors: Joseph D. Guthrie, Paul B. Schultz, Thomas L. Levendusky, Bob Larsen
  • Process for making a metal-polymer composite having an irradiated polymer coating
    Publication number: 20040214021
    Abstract: A process for making a metal-polymer composites suitable for shaping into container end panels having improved resistance to feathering and angel hair formation. A polymer coating is applied to a metal sheet. The polymer coating includes at least one cured polymer selected from polyolefins, anhydride modified polyolefins, epoxies, and phenoxies. The polymer coating on the composite is then irradiated with an electron beam, thereby scissioning chains in the cured polymer. The metal sheet preferably comprises an aluminum alloy and the polymer coating preferably comprises maleic anhydride modified polyropylene.
    Type: Application
    Filed: November 25, 2003
    Publication date: October 28, 2004
    Inventors: Joseph D. Guthrie, Paul B. Schultz, Thomas L. Levendusky, Bob Larsen
  • Process for making a metal-polymer composite having an irradiated polymer coating
    Publication number: 20030079333
    Abstract: A process for making a metal-polymer composites suitable for shaping into container end panels having improved resistance to feathering and angel hair formation. A polymer coating is applied to a metal sheet. The polymer coating includes at least one polymer selected from polyolefins, anhydride modified polyolefins, epoxies, and phenoxies. The polymer coating on the composite is then irradiated with an electron beam. The metal sheet preferably comprises an aluminum alloy and the polymer coating preferably comprises maleic anhydride modified polyropylene.
    Type: Application
    Filed: October 29, 2001
    Publication date: May 1, 2003
    Inventors: Joseph D. Guthrie, Paul B. Schultz, Thomas L. Levendusky, Bob Larsen