Patents Represented by Attorney, Agent or Law Firm Catherine L. Bell
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Patent number: 7268195Abstract: This invention relates to a catalyst system comprising a catalyst and a support comprising a non-layered inorganic porous crystalline phase material, wherein the support comprises a hexagonal arrangement of uniformly-sized pores having an average pore diameter greater than or equal to about 13 ?, an X-ray diffraction pattern having a calculated d100 value of greater than or equal to about 18 ?, an adsorption capacity of greater than or equal to about 15 grams benzene per 100 grams support at 50 torr and at 25° C., and a pore wall thickness of less then or equal to about 25 ?.Type: GrantFiled: October 2, 2006Date of Patent: September 11, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Zerong Lin, David C. Calabro, James C. Vartuli
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Patent number: 7262259Abstract: This invention relates to a method to polymerize olefins comprising contacting a solid aluminum or solid titanium compound with a supported catalyst compound, heating the solid aluminum or solid titanium compound to cause the solid compound to vaporize, optionally activating the support by oxidation, thereafter contacting the activated support with one or more olefin monomers.Type: GrantFiled: February 6, 2007Date of Patent: August 28, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Stanley J. Katzen, Anthony N. Speca
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Patent number: 7247687Abstract: This invention relates to a transition metal compound represented by the formula LMX wherein M is a Group 3 to 11 metal L is a bulky bidentate or tridentate neutral ligand that is bonded to M by two or three heteroatoms and at least one heteroatom is nitrogen; X is a substituted or unsubstituted catecholate ligand provided that the substituted catecholate ligand does not contain a 1,2-diketone functionality.Type: GrantFiled: July 17, 2003Date of Patent: July 24, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Vladimir Kuzunich Cherkasov, Michael Paviovich Bubnov, Nikolay Olegovich Druzhkov, Valentina Nikolavena Glushakova, Irina Alexandrovna Teplova, Nina Aleksandrovna Skorodumova, Gleb Arsent′evich Abakumov, Cynthia A. Ballinger, Kevin R. Squire, Jo Ann Marie Canich, Enock Berluche, Lisa Saunders Baugh, Donald Norman Schulz, Baiyi Zhao
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Patent number: 7232872Abstract: The invention provides for a process to produce polymers utilizing a hydrofluorocarbon diluent.Type: GrantFiled: December 19, 2003Date of Patent: June 19, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Timothy Daniel Shaffer, Scott Thomas Milner, Michael Gerard Matturro, David Yen-Lung Chung, Michael Francis McDonald, Robert Norman Webb
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Patent number: 7223823Abstract: This invention relates to a process of polymerizing ethylene in a reactor comprising contacting a catalyst system comprising a supported chromium catalyst and an aluminum alkyl cocatalyst, where the catalyst and cocatalyst are contacted by cofeeding the catalyst and cocatalyst to the reactor or feeding the catalyst and cocatalyst separately to the reactor, where the catalyst and cocatalyst are not contacted prior to the step of feeding or cofeeding, with ethylene, and from 0 to 50 mole % of one or more comonomers, where the polymerization occurs at a temperature between 50 and 120° C., and the molar ratio of aluminum from the cocatalyst to the chromium in the supported chromium catalyst is 30:1 or more.Type: GrantFiled: June 14, 2004Date of Patent: May 29, 2007Assignee: Exxon Mobil Chemical Patents Inc.Inventor: Zerong Lin
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Patent number: 7220695Abstract: This invention relates to supported activators comprising the product of the combination of an ion-exchange layered silicate, an organoaluminum compound, and a heterocyclic compound, which may be substituted or unsubstituted. This invention further relates to catalyst systems comprising catalyst compounds and such activators, as well as processes to polymerize unsaturated monomers using the supported activators. For the purposes of this patent specification and the claims thereto, the term “activator” is used interchangeably with the term “co-catalyst”, the term “catalyst” refers to a metal compound that when combined with an activator polymerizes olefins, and the term “catalyst system” refers to the combination of a catalyst and an activator with or without a support. The terms “support” or “carrier”, for purposes of this patent specification, are used interchangeably and are any ion-exchange layered silicates.Type: GrantFiled: January 7, 2004Date of Patent: May 22, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Gary L. Casty, Smita Kacker, Jack W. Johnson, Murielle V. Scott, Steven L. Hegwood, Robert R. Simpson, Robert P. Reynolds
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Patent number: 7217675Abstract: This invention relates to transition metal catalyst compounds represented by the formula: LMX2 wherein M is a Group 7 to 11 metal; L is a tridentate or tetradentate neutrally charged ligand that is bonded to M by least three or four nitrogen atoms, and at least one terminal nitrogen atom is part of a pyridinyl ring, a different terminal nitrogen atom is substituted with one C3–C50 hydrocarbyl, and one hydrogen atom or two hydrocarbyls; wherein at least one hydrocarbyl is a C3–C50 hydrocarbyl, and the central nitrogen atom is bonded to at least three different carbon atoms or two different carbon atoms, and one hydrogen atom; X is independently a monoanionic ligand or both X are joined together to form a bidentate dianionic ligand.Type: GrantFiled: March 17, 2004Date of Patent: May 15, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Gregory Adam Solan, Christopher James Davies
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Patent number: 7217676Abstract: This invention relates to a catalyst support comprising the result of the combination of: (a) a support comprising hydroxyl groups; (b) a capping agent comprising a boron containing Lewis acid; and (c) an ionic activator, wherein at least some of the capping agent does not form a support bound activator.Type: GrantFiled: January 16, 2004Date of Patent: May 15, 2007Assignee: Exxon Mobil Chemical Patents Inc.Inventors: George Rodriguez, Anthony N. Speca, Matthew C. Kuchta, David H. McConville, Terry J. Burkhardt
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Patent number: 7214747Abstract: This invention relates to a metallocene compounds represented by formula: wherein M is a group 3, 4, 5 or 6 transition metal atom, or a lanthanide metal atom, or actinide metal atom; E is an indenyl ligand that is substituted with a PR2 group in the two position of the indenyl ligand, where each R is, independently a hydrocarbyl, substituted hydrocarbyl, halocarbyl, or substituted halocarbyl substituent, and additionally, E may be substituted with 0, 1, 2, 3, 4, 5 or 6 Rn where each Rn is, independently, a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl substituent, and optionally, two or more adjacent Rn substituents may join together to form a substituted or unsubstituted, saturated, partially unsaturated, or aromatic cyclic or polycyclic substituent; A is a substituted or unsubstituted cyclopentadienyl ligand, a substituted or unsubstituted heterocyclopentadienyl ligand, a substituted or unsubstitType: GrantFiled: March 11, 2005Date of Patent: May 8, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Alexander Z. Voskoboynikov, Denis N. Kazyulkin, Vyatcheslav V. Izmer, Alexey N. Ryabov, Jo Ann M. Canich
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Patent number: 7214746Abstract: This invention relates to metallocene compounds represented by formula: wherein M is a group 3, 4, 5 or 6 transition metal atom, or a lanthanide metal atom, or actinide metal atom; E is a substituted or unsubstituted indenyl ligand that is bonded to Y through the two position of the indenyl ring; A is bonded to Y, and is a substituted or unsubstituted cyclopentadienyl ligand, a substituted or unsubstituted heterocyclopentadienyl ligand, a substituted or unsubstituted indenyl ligand, a substituted or unsubstituted heteroindenyl ligand, a substituted or unsubstituted fluorenyl ligand, a substituted or unsubstituted heterofluorenyl ligand, or other mono-anionic ligand, or A may, independently, be defined as E; Y is a phosphorus containing group that is bonded to both E and A, and is bonded via the phosphorus atom to E; and X are, independently, univalent anionic ligands, or both X are joined and bound to the metal atom to form a metallocycle ring, or both X join to form a chelating ligand, a diene ligand, oType: GrantFiled: March 11, 2005Date of Patent: May 8, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Alexander Z. Voskoboynikov, Denis N. Kazyulkin, Vyatcheslav V. Izmer, Alexey N. Ryabov, Jo Ann M. Canich
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Patent number: 7196148Abstract: A 3+ metal complex for coordination polymerization of olefins is disclosed. The precursor metal complex is stabilized by a anionic multidentate ligand and at least two monoanionic ligands. The multidentate ligand and the transition metal form a metallocycle having at least five primary atoms, counting any ?-bound cyclopentadienyl group in the metallocycle as two primary atoms. Olefin polymerization is exemplified.Type: GrantFiled: October 25, 2001Date of Patent: March 27, 2007Assignee: Exxon Mobil Chemical Patents Inc.Inventor: George A. Vaughan
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Patent number: 7192901Abstract: This invention relates to a method of preparing a supported catalyst comprising the steps of contacting a solid titanium or solid aluminum compound with a supported catalyst compound, and heating the combination to at least 150° C.Type: GrantFiled: September 9, 2005Date of Patent: March 20, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Stanley J. Katzen, Anthony N. Speca
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Patent number: 7189791Abstract: This invention relates to a transition metal catalyst compound represented by the formula: LMX2 or (LMX2)2 wherein each M is independently a Group 7 to 11 metal, preferably a Group 7, 8, 9, or 10 metal; each L is, independently, a tridentate or tetradentate neutrally charged ligand that is bonded to M by three or four nitrogen atoms, (where at least one of the nitrogen atoms is a central nitrogen atom and at least two of the nitrogen atoms are terminal nitrogen atoms), and at least two terminal nitrogen atoms are substituted with one C3–C50 hydrocarbyl and one hydrogen atom or two hydrocarbyls wherein at least one hydrocarbyl is a C3–C50 hydrocarbyl, and the central nitrogen atom is bonded to three different carbon atoms or two different carbon atoms and one hydrogen atom; X is independently a monoanionic ligand, or two X may join together to form a bidentate dianionic ligand.Type: GrantFiled: May 27, 2004Date of Patent: March 13, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Gregory Adam Solan, Christopher James Davies
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Patent number: 7163993Abstract: This invention relates to olefin polymers particularly suited to satisfying the dielectric properties required in electrical device use. The olefin polymers can be prepared by contacting polymerizable olefin monomers with catalyst complexes of Group 3–11 metal cations and noncoordinating or weakly coordinating anion compounds bound directly to the surfaces of finely divided substrate particles or to polymer chains capable of effective suspension or solvation in polymerization solvents or diluents under solution polymerization conditions. Thus, the invention includes polyolefin products prepared by the invention processes, particularly ethylene-containing copolymers, having insignificant levels of mobile, negatively charged particles as detectable by Time of Flight SIMS.Type: GrantFiled: May 28, 2003Date of Patent: January 16, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventor: Patrick Brant
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Patent number: 7163907Abstract: This invention relates to a catalyst system for the production of polyolefins comprising: (A) a Group IV B transition metal component represented by one of the two general formulae wherein (C5H5-y-xRx) is a cylopentadienyl ring (JR?z-l-y) is a heteroatom ligand in which J is an element with a coordination number of three from Group V-A or an element with a coordination number of two rom Group VI-A of the Periodic Table of Elements, each Q is independently, hydride, C1—C20 hydrocarbyl radicals, substituted hydrocarbyl radials wherein one or more hydrogen atoms is replaced by an electron withdrawing group, or C1—C20 hydrocarbyl-substituted metalloid radicals wherein the metalloid is selected from the group consisting of germanium and silicon, provided that Q is not a substituted or unsubstituted cyclopentadienyl ring, or both Q together may be an alkylidene, olefin, acetylene or a cyclometallated hydrocarbyl; “y” is 0 or 1; when “y” is 1, T is a covalent bridging group containing a Group IV-A or V-A elementType: GrantFiled: June 22, 1990Date of Patent: January 16, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jo Ann Marie Canich, Howard William Turner, Gregory George Hlatky
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Patent number: 7160834Abstract: This invention relates to late transition metal catalyst precursors and catalysts for olefin dimerizations and oligomerizations, and to methods for making and using these catalysts.Type: GrantFiled: March 18, 2003Date of Patent: January 9, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Baiyi Zhao, Kevin R. Squire, Smita Kacker, Jo Ann Marie Canich
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Patent number: 7161018Abstract: A series of soluble ?-diimine late transition metal catalysts has been invented. The catalysts demonstrate high activity and selectivity for linear ?-olefins. As such, these catalysts conveniently oligomerize ethylene. Typical activators as known to those of ordinary skill in the art are used to activate these transition metal catalyst. These catalysts can be used in a supported or unsupported form.Type: GrantFiled: May 30, 2003Date of Patent: January 9, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Baiyi Zhao, Enock Berluche, Smita Kacker, Jo Ann Marie Canich
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Patent number: 7151073Abstract: This invention relates to a catalyst system comprising a catalyst and a support comprising a non-layered inorganic porous crystalline phase material, wherein the support comprises a hexagonal arrangement of uniformly-sized pores having an average pore diameter greater than or equal to about 13 ?, an X-ray diffraction pattern having a calculated d100 value of greater than or equal to about 18 ?, an adsorption capacity of greater than or equal to about 15 grams benzene per 100 grams support at 50 torr and at 25° C., and a pore wall thickness of less then or equal to about 25 ?.Type: GrantFiled: January 16, 2004Date of Patent: December 19, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: Zerong Lin, David C. Calabro, James C. Vartuli
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Patent number: 7145029Abstract: An integrated process for the production of a dialkyl carbonate and a diol from an alkylene oxide, carbon dioxide and an aliphatic monohydric alcohol is described in which an alkylene oxide is first reacted with carbon dioxide in the presence of a halogen-free carbonation catalyst to provide a corresponding cyclic carbonate and the cyclic carbonate is then reacted with an aliphatic monohydric alcohol in the presence of the carbonation catalyst and/or a transesterification catalyst and recycling the carbonation catalyst to provide a corresponding dialkyl carbonate and diol, wherein the dialkyl carbonate product exhibits a halogen concentration of about 5 ppm or less.Type: GrantFiled: June 29, 2004Date of Patent: December 5, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: Richard H. Schlosberg, J. Scott Buchanan, Jose Guadalupe Santiesteban, Zhaozhong Jiang, William A. Weber
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Patent number: 7122607Abstract: The present invention relates to a continuous gas phase process comprising polymerizing one or more hydrocarbon monomer(s) in a fluidized bed reactor in the presence of catalyst system or polymerization catalyst and a condensable fluid for a period of at least 12 hours where the bed temperature is less than the Critical Temperature and the dew point temperature of the gas composition in the reactor is within 25° C. of the bed temperature.Type: GrantFiled: May 19, 2005Date of Patent: October 17, 2006Assignee: Univation Technologies, LLCInventors: Robert O. Hagerty, Kevin B. Stavens, Marc L. DeChellis, D. Brett Fischbuch, James M. Farley