Patents by Inventor Michael P. Zummallen

Michael P. Zummallen 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).

  • Catalyst composition with monocarboxylic acid ester internal donor and propylene polymerization process
    Patent number: 7687426
    Abstract: A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more monoesters of aromatic carboxylic acid internal electron donors; one or more aluminum containing cocatalyst; and a mixture of two or more different selectivity control agents, said SCA mixture comprising from 70 to 98 mol percent of one or more esters of one or more aromatic monocarboxylic acids or substituted derivatives thereof, and from 30 to 2 mol percent of one or more alkoxysilane compounds containing one or more 5- or 6-membered cyclic groups optionally containing one or more Group 14, 15 or 16 heteroatoms.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: March 30, 2010
    Assignee: Dow Global Technologies Inc.
    Inventors: Jeffery S. Bradley, Linfeng Chen, William G. Sheard, Michael P. Zummallen
  • Catalyst Composition with Monocarboxylic Acid Ester Internal Donor and Propylene Polymerization Process
    Publication number: 20080319146
    Abstract: A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more monoesters of aromatic carboxylic acid internal electron donors; one or more aluminum containing cocatalyst; and a mixture of two or more different selectivity control agents, said SCA mixture comprising from 70 to 98 mol percent of one or more esters of one or more aromatic monocarboxylic acids or substituted derivatives thereof, and from 30 to 2 mol percent of one or more alkoxysilane compounds containing one or more 5- or 6-membered cyclic groups optionally containing one or more Group 14, 15 or 16 heteroatoms.
    Type: Application
    Filed: June 24, 2008
    Publication date: December 25, 2008
    Inventors: Jeffery S. Bradley, Linfeng Chen, William G. Sheard, Michael P. Zummallen
  • Catalyst composition with monocarboxylic acid ester internal donor and propylene polymerization process
    Patent number: 7393806
    Abstract: A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more monoesters of aromatic carboxylic acid internal electron donors; one or more aluminum containing cocatalyst; and a mixture of two or more different selectivity control agents, said SCA mixture comprising from 70 to 98 mol percent of one or more esters of one or more aromatic monocarboxylic acids or substituted derivatives thereof, and from 30 to 2 mol percent of one or more alkoxysilane compounds containing one or more 5- or 6-membered cyclic groups optionally containing one or more Group 14, 15 or 16 heteroatoms.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: July 1, 2008
    Assignee: Dow Global Technologies Inc.
    Inventors: Jeffery S. Bradley, Linfeng Chen, William G. Sheard, Michael P. Zummallen