1
Matthew W Holtcamp, Matthew S Bedoya, Laughlin G McCullough: Class of olefin metathesis catalysts, methods of preparation, and processes for the use thereof. ExxonMobil Chemical Patents, Renuka N Ganesh, Catherine L Bell, July 24, 2012: US08227371 (14 worldwide citation)

This invention relates to a metathesis catalyst comprising (i) a Group 8 metal hydride-dihydrogen complex represented by the formula: wherein M is a Group 8 metal; X is an anionic ligand; and L1 and L2 are neutral donor ligands; and (ii) a ligand exchange agent represented by the formula J-Y, wherei ...


2
Peijun Jiang, Patrick Brant: Branched vinyl terminated polymers and methods for production thereof. ExxonMobil Chemical Patents, Kevin M Faulkner, Renuka N Ganesh, January 7, 2014: US08623974 (7 worldwide citation)

This invention relates to a process for polymerization, comprising (i) contacting, at a temperature greater than 35° C., one or more monomers comprising ethylene and/or propylene, with a catalyst system comprising a metallocene catalyst compound and an activator, (ii) converting at least 50 mol % of ...


3
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 ...


4
Patrick Brant, Kiss Gabor, Chris B Friedersdorf, James R Lattner, Gary L Casty: Polymer production at supersolution conditions. ExxonMobil Chemical Patents, Catherine L Bell, Renuka N Ganesh, August 30, 2011: US08008412 (5 worldwide citation)

This invention relates to a process to polymerize olefins comprising contacting propylene, at a temperature of 65° C. to 150° C. and a pressure of 1.72 to 34.5 MPa, with: 1) a catalyst system comprising one or more activators and one or more nonmetallocene metal-centered, heteroaryl ligand catalyst ...


5
Randal Howard Kerstetter III: Flame resistant polyolefin compositions and methods for making the same. ExxonMobil Chemical Patents, Renuka N Ganesh, October 15, 2013: US08557906 (2 worldwide citation)

A flame-retardant composition having (a) a copolymer comprising at least about 50 wt. % of propylene-derived units, and about 5-35 wt. % of units derived from at least one of ethylene or a C4-10 alpha-olefin, wherein the copolymer has a heat of fusion of about 75 J/g or less; and (b) a flame retarda ...


6
Garth R Giesbrecht, Timothy M Boller, Alexander Z Voskoboynikov, Andrey F Asachenko, Mikhail V Nikulin, Alexey A Tsarev: Catalyst compounds and use thereof. ExxonMobil Chemical Patents, Renuka N Ganesh, Catherine L Bell, September 10, 2013: US08530593

This invention relates to Group 4 dialkyl compounds supported by a pyridyl-amido-aryl (“PAA”), an anisole-amido-aryl (“AAA”), a phenoxy-amido-pyridyl (“PAPY”), an anisole-amido-phenoxy (“AAP”) or a anisole-amido-phenoxy (“AAP”) tridentate ligand. Such compounds can polymerize olefins, such as ethyle ...