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John R. Hagadorn, Houston US

John R. Hagadorn, Houston, TX US

Patent application numberDescriptionPublished
20090259085Semi-Rigid Linked Diamines, Precursors Therefor, And Transition Metal Diamido Complexes As Catalysts For Olefin Polymerization Processes - The invention relates to a process for producing a complex for use in olefin polymerization and oligomerization of the general formula (III):10-15-2009
20090318647Olefin Functionalization By Metathesis Reaction - 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. This invention also relates to a process to functionalize propylene homo-oligomer comprising contacting an alkene metathesis catalyst with a heteroatom containing alkene, and a propylene homo-oligomer, comprising propylene, wherein the oligomer has: at least 93% allyl chain ends, an Mn of about 500 to about 20,000 g/mol, an isobutyl chain end to allylic vinyl group ratio of 0.8:1 to 1.2:1.0, and less than 100 ppm aluminum.12-24-2009
20100022726Pyridyldiamido Transition Metal Complexes, Production And Use Thereof - Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization. The ligands are tridentate with an NNN configuration. The general formula is: (I)01-28-2010
20100305287Metallocene-Substituted Pyridyl Amines, Their Metal Complexes, and Processes for Production and Use Thereof - 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.12-02-2010
20110112302Metathesis Catalysts and Processes for Use Thereof - This invention relates to a metathesis catalyst compound comprising an asymmetrically substituted N-heterocyclic carbene (NHC) metathesis catalyst and a process to make linear alpha-olefins comprising contacting a feed material and an optional alkene (such as ethylene) with said catalyst, where the feed material is a triacylglyceride, fatty acid, fatty acid alkyl ester, and/or fatty acid ester, typically derived from biodiesel.05-12-2011
20110112304Carbene Complexes of Lithium And/Or Magnesium Metal Salts, And Uses Thereof - This invention relates to a carbene complex of metal salt represented by the formula:05-12-2011
20110112305METATHESIS CATALYST AND PROCESS FOR USE THEREOF - 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.05-12-2011
20110112349Metathesis Catalyst and Process for Use Thereof - This invention relates to a catalyst compound for the metathesis of olefins represented by the formula:05-12-2011

Patent applications by John R. Hagadorn, Houston, TX US