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John R Hagadorn, Matthew W Holtcamp, Andrew G Narvaez Jr, Donna J Crowther, Patrick Brant: Olefin functionalization by metathesis reaction. ExxonMobil Chemical Patents, Catherine L Bell, October 9, 2012: US08283419 (25 worldwide citation)

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, wh ...


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Matthew W Holtcamp, Catherine Anne Faler, Caol P Huff, Matthew S Bedoya, John R Hagadorn: Metathesis catalyst and process for use thereof. ExxonMobil Chemical Patents, August 7, 2012: US08237003 (16 worldwide citation)

This invention relates to a catalyst compound for the metathesis of olefins represented by the formula: wherein M is a Group 8 metal; X and X1 are anionic ligands; L is a neutral two electron donor; L1 is N, O, P, or S, preferably N or O; R is a C1 to C30 hydrocarbyl or a C1 to C30 substituted hydro ...


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John R Hagadorn, Matthew W Holtcamp, Matthew S Bedoya: Metathesis catalyst and process for use thereof. ExxonMobil Chemical Patents, November 22, 2011: US08063232 (15 worldwide citation)

This invention relates to a catalyst compound comprising a combination of a cyclic alkyl amino carbene ligand and a benzylidene both attached to a Group 8 metal, preferably ruthenium atom. This invention also relates to a process to make linear alpha-olefins comprising contacting a feed material and ...


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John R Hagadorn, Catherine Anne Faler, Timothy M Boller: Pyridyldiamido transition metal complexes, production and use thereof. ExxonMobil Chemical Patents, July 5, 2011: US07973116 (14 worldwide citation)

Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization. The ligands are tridentate with an NNN configuration. The general formula is: where M, Z, Ln, Lw′, R1-R5, R10 and R11 are as defined in the specification.


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Matthew W Holtcamp, Charles J Ruff, Donna J Crowther, John R Hagadorn, Patrick Brant: Vinyl terminated higher olefin polymers and methods to produce thereof. ExxonMobil Chemical Patents, Renuka N Ganesh, April 23, 2013: US08426659 (6 worldwide citation)

This invention relates to higher olefin vinyl terminated polymers having an Mn of at least 200 g/mol (measured by 1H NMR) including of one or more C4 to C40 higher olefin derived units, where the higher olefin vinyl terminated polymer comprises substantially no propylene derived units; and wherein t ...


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Donna J Crowther, Matthew W Holtcamp, John R Hagadorn, Charles J Ruff, George Rodriguez, Patrick Brant: Vinyl terminated higher olefin copolymers and methods to produce thereof. ExxonMobil Chemical Patents, March 19, 2013: US08399724 (5 worldwide citation)

This invention relates to a vinyl terminated higher olefin copolymer having an Mn of 300 g/mol or more (measured by 1H NMR) comprising: (i) from about 20 to about 99.9 mol % of at least one C5 to C40 higher olefin monomer; and (ii) from about 0.1 to about 80 mol % of propylene; wherein the higher ol ...


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Garth R Giesbrecht, Matthew W Holtcamp, Gregory S Day, John R Hagadorn: Supported Salan catalysts. ExxonMobil Chemical Patents, Daniel N Lundeen, Lundeen & Lundeen PLLC, September 1, 2015: US09120879 (3 worldwide citation)

Supported Salan catalysts, a process comprising contacting one or more olefins with a catalyst system comprising an activator and a Salan catalyst disposed on a support, and polymers produced by the process.


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John R Hagadorn: Metallocene-substituted pyridyl amines, their metal complexes, and processes for production and use thereof. Exxonmobil Chemical Patents, Catherine L Bell, April 24, 2012: US08163853 (2 worldwide citation)

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 compl ...