Patents by Inventor Keith Allen Nelson

Keith Allen Nelson 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).

  • Polyolefin adhesive compositions and articles made therefrom
    Patent number: 7524910
    Abstract: Embodiments of the present invention relate to article comprising a polymer comprising one or more C3 to C40 olefins, optionally one or more diolefins, and less than 5 mole % of ethylene having a Dot T-Peel of 1 Newton or more, a branching index (g?) of 0.95 or less measured at the Mz of the polymer; and an Mw of 100,000 or less. This invention further relates to a process to produce an olefin polymer comprising: 1) selecting a first catalyst component capable of producing a polymer having an Mw of 100,000 or less and a crystallinity of 20% or less; 2) selecting a second catalyst component capable of producing polymer having an Mw of 100,000 or less and a crystallinity of 40% or more; 3) contacting the catalyst components in the presence of one or more activators with one or more C3 to C40 olefins, in a reaction zone.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: April 28, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Peijun Jiang, Keith Allen Nelson, Christopher Lewis Curry, Armenag Hagop Dekmezian, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, Jo Ann Marie Canich, Nicolas Kappes, Michel Louis Faissat, Lutz Erich Jacob
  • Polyolefin adhesive compositions and articles made therefrom
    Publication number: 20040127614
    Abstract: Embodiments of the present invention relate to article comprising a polymer comprising one or more C3 to C40 olefins, optionally one or more diolefins, and less than 5 mole % of ethylene having a Dot T-Peel of 1 Newton or more, a branching index (g′) of 0.95 or less measured at the Mz of the polymer; and an Mw of 100,000 or less. This invention further relates to a process to produce an olefin polymer comprising: 1) selecting a first catalyst component capable of producing a polymer having an Mw of 100,000 or less and a crystallinity of 20% or less; 2) selecting a second catalyst component capable of producing polymer having an Mw of 100,000 or less and a crystallinity of 40% or more; 3) contacting the catalyst components in the presence of one or more activators with one or more C3 to C40 olefins, in a reaction zone.
    Type: Application
    Filed: October 15, 2003
    Publication date: July 1, 2004
    Inventors: Peijun Jiang, Keith Allen Nelson, Christopher Lewis Curry, Armenag Hagop Dekmezian, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, Jo Ann Marie Canich, Nicolas Kappes, Michel Louis Faissat, Lutz Erich Jacob