Patents Represented by Attorney, Agent or Law Firm Catherine L. Bell
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Patent number: 8329921Abstract: 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 an optional alkene (such as ethylene) with the catalyst described above, wherein the feed material is a triacylglyceride, fatty acid, fatty acid alkyl ester, and/or fatty acid ester, typically derived from seed oil (e.g., biodiesel).Type: GrantFiled: August 22, 2011Date of Patent: December 11, 2012Assignee: Exxonmobil Chemical Patents Inc.Inventors: John R. Hagadorn, Matthew W. Holtcamp, Matthew S. Bedoya
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Patent number: 8318875Abstract: This invention relates to processes for producing an isotactic propylene homopolymer having more than 15 and less than 100 regio defects (sum of 2,1-erythro and 2,1-threo insertions and 3,1-isomerizations) per 10,000 propylene units; a weight-averaged molecular weight of 35000 g/mol or more; a peak melting temperature of greater than 149° C.; an mmmm pentad fraction of 0.85 or more; a heat of fusion of 80 J/g or more; and a peak melting temperature minus peak crystallization temperature (Tmp?Tcp) of less than or equal to (0.907 times Tmp) minus 99.64 (Tmp?Tcp<(0.907×Tmp)?99.64), as measured in ° C. on the homopolymer having 0 wt % nucleating agent.Type: GrantFiled: November 4, 2008Date of Patent: November 27, 2012Assignee: Exxonmobil Chemical Patents Inc.Inventors: Aspy K. Mehta, Manika Varma-Nair, Gabor Kiss, Robert P. Reynolds, John W. Chu, Steven P. Rucker
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Patent number: 8318998Abstract: This invention relates to a transition metal catalyst compound represented by the structure: wherein M is hafnium or zirconium; each X is, independently, selected from the group consisting of hydrocarbyl radicals having from 1 to 20 carbon atoms, hydrides, amides, alkoxides, sulfides, phosphides, halogens, dienes, amines, phosphines, ethers, or a combination thereof; each R1 and R3 are, independently, a C1 to C8 alkyl group; and each R2, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, and R14 are, independently, hydrogen, or a substituted or unsubstituted hydrocarbyl group having from 1 to 8 carbon atoms, provided however that at least three of the R10-R14 groups are not hydrogen, compositions thereof and methods of use thereof to prepare polymers.Type: GrantFiled: March 25, 2011Date of Patent: November 27, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Donna J. Crowther, Renuka N. Ganesh, Andrew G. Narvaez, Jr., Patrick Brant
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Patent number: 8283419Abstract: 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: GrantFiled: June 19, 2009Date of Patent: October 9, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: John R. Hagadorn, Matthew W. Holtcamp, Andrew G. Narvaez, Jr., Donna J. Crowther, Patrick Brant
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Patent number: 8283428Abstract: This invention relates to a polymacromonomer comprising at least one macromonomer and from 0 to 20 wt % of a C2 to C12 comonomer, wherein the macromonomer has vinyl termination of at least 70%, and wherein the polymacromonomer has: a) a g value of less than 0.6, b) an Mw of greater than 30,000 g/mol, c) an Mn of greater than 20,000 g/mol, d) a branching index (g?)vis of less than 0.5, e) less than 25% vinyl terminations, f) at least 70 wt % macromonomer, based upon the weight of the polymacromonomer, g) from 0 to 20 wt % aromatic containing monomer, based upon the weight of the polymacromonomer and h) optionally, a melting point of 50° C. or more. This invention also relates to processes to make such polymacromonomers.Type: GrantFiled: June 19, 2009Date of Patent: October 9, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Patrick Brant, Andrew G. Narvaez, Jr., Donna J. Crowther
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Patent number: 8227547Abstract: This invention relates to a foamable blend comprising an in-reactor polymer blend comprising: (a) a first propylene polymer component comprising 90 to 100 wt % propylene and from 0 to less than 10 wt % comonomer, said first propylene component having a Tm of 120° C. or more; and (b) a second propylene polymer component comprising from 30 to 90 wt % propylene and 70 to 10 wt % comonomer, said second propylene polymer having an Mw of 30,000 g/mol or more, and said second propylene-containing polymer having a crystallinity different by at least 5% from the first polymer, wherein the polymer blend, prior to combination with a foaming agent, has: (i) a Tm of at least 120° C.; (ii) a MFR of 10 dg/min or more; (iii) a tensile strength of at least 8 MPa; (iv) an elongation at break of at least 200%, and (v) a ratio of elongational viscosity at break to linear viscosity of 5 or more when the elongational viscosity is measured at a strain rate of 1 sec?1 and temperature of 180° C.Type: GrantFiled: January 7, 2011Date of Patent: July 24, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Peijun Jiang, Abdelhadi Sahnoune, Armenag Dekmezian
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Patent number: 8217112Abstract: The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: GrantFiled: October 19, 2009Date of Patent: July 10, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Bruce R. Lundmark, Bryan R. Chapman, Sandra Denise Schregenberger, David J. Lohse
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Patent number: 8211968Abstract: The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: GrantFiled: January 25, 2010Date of Patent: July 3, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Henry Wu-Hsiang Yang, Wen Li, Bruce R. Lundmark, Chon-Yie Lin, Chia Yung Cheng, Bryan R. Chapman, Petra Eiselt, Galina Ourieva, Manika Varma-Nair, James N. Coffey, Sandra Denise Schregenberger, David J. Lohse, Norman Yang, Jeffrey Theodore Zudock, Robert Jay Wittenbrink
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Patent number: 8173828Abstract: Halogen substituted metallocene compounds are described and comprise one or more monocyclic or polycyclic ligands that are pi-bonded to the metal atom and include at least one halogen substituent directly bonded to an sp2 carbon atom at a bondable ring position of the ligand, wherein the or at least one ligand has one or more ring heteroatoms in its cyclic structure. When combined with a suitable activator, these compounds show activity in the polymerization of olefins, such as ethylene and propylene.Type: GrantFiled: November 22, 2010Date of Patent: May 8, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Alexander Z. Voskoboynikov, Alexey N. Ryabov, Mikhail V. Nikulin, Alexander V. Lygin, Dmitry V. Uborsky, Catalina L. Coker, Jo Ann M. Canich
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Patent number: 8163853Abstract: 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: GrantFiled: August 13, 2010Date of Patent: April 24, 2012Assignee: Exxonmobil Chemical Patents Inc.Inventor: John R. Hagadorn
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Patent number: 8163854Abstract: A method for the preparation of olefin polymerization catalysts that are the reaction products of the catalytic reaction of surface hydroxyls of a support with a trialkyl silane to afford hydrogen and the corresponding surface bound alkyl silyl ether and at the same time with a strong Lewis acid which support is converted to a silica bound anion that in a second step is fully converted by reaction with QM2 to the desired catalyst. Catalyst compositions are disclosed herein. Processes disclosed herein include processes for the polymerization of olefinically unsaturated monomers comprising contacting a plurality of one or more of the monomers with the catalyst.Type: GrantFiled: September 20, 2010Date of Patent: April 24, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Gary L. Casty, George Rodriguez
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Patent number: 8119725Abstract: A fiber reinforced polypropylene composite interior trim cover panel. The interior trim cover panel is molded from a composition comprising at least 30 wt % polypropylene based resin, from 10 to 60 wt % organic fiber, from 0 to 40 wt % inorganic filler, and optionally from 0 to 0.1 wt % lubricant, based on the total weight of the composition, the interior trim cover panel having an outer surface and an underside surface. A process for producing an interior trim cover panel for a vehicle is also provided. The process includes the step of injection molding a composition to form the interior trim cover panel for a vehicle, the interior trim cover panel having at least an outer surface and an underside surface, wherein the composition comprises at least 30 wt % polypropylene, from 10 to 60 wt % organic fiber, from 0 to 40 wt % inorganic filler, and optionally from 0 to 0.1 wt % lubricant, based on the total weight of the composition.Type: GrantFiled: March 23, 2006Date of Patent: February 21, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Arnold Lustiger, Jeffrey Valentage
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Patent number: 8080493Abstract: The invention relates to polyoxometalates represented by the formula (An)m+ [M13X8RqOy]m? or solvates thereof, wherein A represents a cation, n is the number of the cations, m is the charge of the polyanion, M represents a transition metal selected from Pd, Pt, Au, Rh, Ir and mixtures thereof, X represents a heteroatom selected from As, Sb, Bi, P, Si, Ge, B, Al, Ga, S, Se, Te and mixtures thereof, and y is the number of oxygen atoms ranging from 32 to 40, a process for their preparation and their use for the catalytic oxidation of organic molecules.Type: GrantFiled: February 26, 2008Date of Patent: December 20, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Elena Vladimirovna Chubarova, Ulrich Kortz
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Patent number: 8022005Abstract: This invention relates to an activator, catalyst system, and the use thereof. In one aspect, the catalyst system includes one or more polymerization catalysts and at least one activator. The activator comprises one or more heterocyclic heteroatom containing ligands coordinated to an alumoxane, wherein the activator is a reaction product of one or more alumoxanes and one or more heterocyclic heteroatom containing compounds, the one or more heterocyclic heteroatom containing ligands represented by the formula: where Y is O, S, PH or NH; wherein each substituent X2, X3, X4, X5, X6, and X7 is independently selected from the group consisting of hydrogen, chlorine, fluorine, iodine, and bromine, provided at least one of X2, X3, X4, X5, X6 and X7 is not hydrogen when Y is NH; and wherein the ratio of the heterocyclic heteroatom containing ligand to aluminum is between about 0.01 and about 10 molar equivalents. The catalyst system may be supported or non-supported.Type: GrantFiled: November 8, 2007Date of Patent: September 20, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Matthew W. Holtcamp, Renuka N. Ganesh
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Patent number: 8008412Abstract: 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.Type: GrantFiled: December 12, 2007Date of Patent: August 30, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Patrick Brant, Kiss Gabor, Chris B. Friedersdorf, James R. Lattner, Gary L. Casty
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Patent number: 8003725Abstract: This invention relates to hetero-phase polyolefin compositions comprising: a) 30 to 99.7 wt % of a polypropylene-based TPO comprising at least 50 wt % propylene and at least 10 wt % ethylene, and b) 0.1 to 20 wt % of one or more non-functionalized plasticizer, and c) 0.2 to 50 wt % of one or more filler; based upon the weight of the composition, and having: i) an MFR of 5 dg/min or more, and ii) a flexural modulus of 500 MPa or more, and iii) a notched Charpy impact strength at ?30° C. of 1 kJ/m2 or more or a notched Izod impact strength at ?18° C. of 50 J/m or more. These compositions are especially useful in applications such as automotive parts that demand both high stiffness and high impact toughness, as well as good processibility during fabrication.Type: GrantFiled: August 15, 2006Date of Patent: August 23, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Bryan R. Chapman, Jeffrey Valentage, Jared M. Hill, Bruce R. Lundmark
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Patent number: 7998579Abstract: The present invention relates to fibers and nonwovens made from plasticized polyolefin compositions comprising a polyolefin, a non-functionalized hydrocarbon plasticizer and a slip agent.Type: GrantFiled: April 29, 2005Date of Patent: August 16, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Chon Yie Lin, Bryan Robert Chapman, Chia Yung Cheng, William Michael Ferry, Michael Brian Kelly, Bruce Robert Lundmark, Wen Li
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Patent number: 7981984Abstract: This invention relates to a process to polymerize olefins comprising contacting a catalyst or catalyst system with olefin(s) in the presence of a fluorocarbon at a temperature above the onset melting point of the polymer. This invention also relates to a solution process to polymerize olefins comprising contacting a catalyst or catalyst system with olefin(s) in the presence of a fluorocarbon at a temperature above the onset melting point of the polymer.Type: GrantFiled: June 20, 2005Date of Patent: July 19, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Peijun Jiang, John Richard Shutt, Charles Stanley Speed, Robert Olds Hagerty, Pradeep P. Shirodkar
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Patent number: 7875670Abstract: The present invention relates to articles made from plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.Type: GrantFiled: February 25, 2009Date of Patent: January 25, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Chon-Yie Lin, Wen Li, Bryan R. Chapman, Michael B. Kelly, Bruce R. Lundmark, David J. Lohse, Henry W. Yang, Sandra Denise Schregenberger
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Patent number: 7871953Abstract: As series of novel late transition metal catalysts for olefin oligomerization have been invented. The catalyst system includes a Group 8, 9 or 10 transition metal and an activator. The catalysts demonstrate high activity and selectivity for linear ?-olefins. Preferably this invention relates to a catalyst system comprising the reaction product of: (a) an activator selected from the group consisting of alumoxane, aluminum alkyl, alkyl aluminum halide, alkylaluminum alkoxide, discrete ionic activator, and Lewis acid; and (b) a catalyst precursor wherein the catalyst precursor has the following formula: wherein (i) M is a Group-8, -9 , or -10 transition metal; (ii) N is nitrogen (iii) P is phosphorus; (iv) R1, R2, R3, and R4 are independently hydrocarbyl radicals; (v) Y is a hydrocarbyl bridge comprising a backbone wherein the backbone comprises a chain that is four or more carbon atoms long; (vi) X are independently abstractable ligands.Type: GrantFiled: October 24, 2003Date of Patent: January 18, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Baiyi Zhao, Smita Kacker, Jo Ann Marie Canich