Patents by Inventor John R. Hagadorn

John R. Hagadorn 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).

  • Publication number: 20090318647
    Abstract: This invention relates to a process to functionalize propylene co-oligomer comprising contacting an alkene metathesis catalyst with a heteroatom containing alkene, and a propylene a co-oligomer having an Mn of 300 to 30,000 g/mol comprising 10 to 90 mol % propylene and 10 to 90 mol % of ethylene, wherein the oligomer has at least X % allyl chain ends, where: 1) X=(?0.94 (mol % ethylene incorporated)+100), when 10 to 60 mol % ethylene is present in the co-oligomer, and 2) X=45, when greater than 60 and less than 70 mol % ethylene is present in the co-oligomer, and 3) X=(1.83*(mol % ethylene incorporated)?83), when 70 to 90 mol % ethylene is present in the co-oligomer.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 24, 2009
    Inventors: John R. Hagadorn, Matthew W. Holtcamp, Andrew G. Narvaez, JR., Donna J. Crowther, Patrick Brant
  • Publication number: 20090259085
    Abstract: The invention relates to a process for producing a complex for use in olefin polymerization and oligomerization of the general formula (III): wherein Mt is a group 3 to 12 element in a +2 to +6 oxidation state with between 1 to 4 additional ligands (anionic and/or neutral) coordinated, wherein R1 and R2 are hydrogen, halogen, alkoxy, or a hydrocarbon group containing between 1 to 12 carbon atoms; E is a group 16 element, preferably O; Z is a direct bond between carbon atoms of the adjacent aromatic rings or a —CR3R4— or —SiR3R4— bridge between those carbon atoms, where R3 and R4 are hydrogen or a hydrocarbon groups with 1 to 10 carbons, R5, R6, R7 and R8 are hydrogen, halogen, alkoxy, or a hydrocarbon group containing between 1 to 10 carbon atoms and J1 and J2 are —NR9R10 or —PR9R10, where R9 is H or SiMe3 group and R10 is selected from a group consisting of alkyl, aryl, substituted aryl, heteroalkyl, and heteroaryl containing between 1 to 30 non-hydrogen atoms through a route involving novel precursors s
    Type: Application
    Filed: April 15, 2008
    Publication date: October 15, 2009
    Inventor: John R. Hagadorn
  • Publication number: 20090227747
    Abstract: This invention relates to new transition metal complexes for use in olefin polymerization and oligomerization. The active complex is a pyridine amide having a metallocenyl substituent as part of the ligand structure. The invention also relates to novel precursors for the ligand systems of such complexes obtained from metallocenyl-substituted pyridine compounds through sequences involving addition-condensation or lithium-halogen exchange (with subsequent metathesis) reactions.
    Type: Application
    Filed: March 10, 2008
    Publication date: September 10, 2009
    Inventor: John R. Hagadorn