Patents Represented by Attorney, Agent or Law Firm Catherine L. Bell
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Patent number: 7858814Abstract: The invention relates to polyoxometalates represented by the formula (An)m+ [Ru2L2(XW11O39)2WO2]m? or solvates thereof, wherein A is a cation, n is the number of the cations, m is the charge of the polyanion, L is a ligand bound to ruthenium and is independently selected from group consisting of water, unsubstituted or substituted arenes, unsubstituted or substituted heteroarenes, unsaturated hydrocarbons, ethers, unsubstituted or substituted allyl, unsubstituted or substituted alkanes, nitriles, carboxylates, peroxides, peracids, phosphines, phosphanes, CO, OH?, peroxo, carbonate, NO3?, NO2?, NO?, NH3, amines, F?, Cl?, Br?, I?, SCN?, NCS?, NCO? and mixtures thereof and X is a heteroatom selected from Si, Ge, B and mixtures thereof, a process for their preparation and their use for the catalytic oxidation of organic molecules.Type: GrantFiled: June 20, 2008Date of Patent: December 28, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Ulrich Kortz, Elena Vladimirovna Chubarova, Nadeen Hassan Nsouli
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Patent number: 7858817Abstract: 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: March 10, 2008Date of Patent: December 28, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventor: John R. Hagadorn
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Patent number: 7858736Abstract: This invention relates to a process comprising contacting an polymerization reactor effluent with a fluorinated hydrocarbon and thereafter recovering olefin polymer, where the fluorinated hydrocarbon is present at 5 volume % to 99 volume % based upon the volume of the effluent and the fluorinated hydrocarbon, and where the polymerization is a continuous polymerization of at least 75 mole % of hydrocarbon monomers, based upon the total moles of monomer present in the reactor.Type: GrantFiled: June 20, 2005Date of Patent: December 28, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Peijun Jiang, Robert Olds Hagerty, John Richard Shutt, Charles Stanley Speed, Randall B. Laird, Kevin B. Stavens, Larry L. Iaccino
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Patent number: 7820868Abstract: This invention relates to polyoxometalates represented by the formula (An)m+[My(H2O)pXzZ2W18O66]m?1 or solvates thereof, wherein A represents a cation acting as counterion of the polyanion, n is the number of the cations A, m is the charge of the polyoxoanion, M represents a transition metal selected from Cu, Zn, Pd, Pt and mixtures thereof, y is the number of transition metals M and is a number from greater than 4 to less than 6, p is a number of water molecules and is a number from 0 to 10, X is a halide selected from F, Cl, Br, I and mixtures thereof, z is a number of halides and is a number from 0 to 6 and Z represents a heteroatom selected from SbIII, BiIII, AsIII, SeIV and TeIV.Type: GrantFiled: January 19, 2007Date of Patent: October 26, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Ulrich Kortz, Sib Sankar Mal
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Patent number: 7812104Abstract: In a process for producing a propylene-based olefin homopolymer or copolymer, a monomer composition comprising propylene is contacted with a polymerization catalyst system under homogeneous polymerization conditions (such as solution, supersolution or supercritical conditions), wherein the polymerization catalyst system includes an activator and a bridged bis-indenyl transition metal (group 4) compound substituted with a carbazole (unsubstituted or substituted) at the 4 position.Type: GrantFiled: January 18, 2008Date of Patent: October 12, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jo Ann M. Canich, Peijun Jiang, Gary L. Casty, Gabor Kiss, Alexander Z. Voskoboynikov
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Patent number: 7799879Abstract: The present application relates to a new catalyst system for the polymerization of olefins, comprising a new ionic activator having the formula: [R1R2R3AH]+[Y]?, wherein [Y]? is a non-coordinating anion (NCA), A is nitrogen or phosphorus, R1 and R2 are hydrocarbyl groups or heteroatom-containing hydrocarbyl groups and together form a first, 3- to 10-membered non-aromatic ring with A, wherein any number of adjacent ring members may optionally be members of at least one second, aromatic or aliphatic ring or aliphatic and/or aromatic ring system of two or more rings, wherein said at least one second ring or ring system is fused to said first ring, and wherein any atom of the first and/or at least one second ring or ring system is a carbon atom or a heteroatom and may be substituted independently by one or more substituents selected from the group consisting of a hydrogen atom, halogen atom, C1 to C10 alkyl, C5 to C15 aryl, C6 to C25 arylalkyl, and C6 to C25 alkylaryl, and R3 is a hydrogen atom or C1 to C10 alkylType: GrantFiled: August 1, 2008Date of Patent: September 21, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Donna J. Crowther, Peijun Jiang, George Rodriguez
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Patent number: 7799882Abstract: This invention relates to a multiple phase polymerization process to produce polyolefins comprising contacting olefins and a homogeneous catalyst or catalyst system at a temperature between the melting point of the dry polymer and 80° C. below the melting point of the dry polymer in the presence of a fluorinated hydrocarbon. This invention also relates to a process to produce polyethylene comprising contacting a homogeneous catalyst or catalyst system with ethylene and from 0 to 40 weight % of one or more C3 to C40 olefin comonomer(s) in the presence of a fluorinated hydrocarbon and optionally a hydrocarbon solvent at a temperature below the reaction medium melting point.Type: GrantFiled: June 20, 2005Date of Patent: September 21, 2010Assignee: 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: 7795366Abstract: The present invention relates to a composition comprising more than 25 weight % (based on the weight of the composition) of one or more ethylene polymers having an Mw of 20,000 g/mole or more and at least 0.1 weight % of a liquid hydrocarbon modifier where the modifier has: 1) a viscosity index of 120 or more, and 2) an kinematic viscosity of 3 to 3000 cSt at 100° C., and 3) a pour point of ?10° C. or less, and 4) a flash point of 200° C. or more; and wherein the modifier contains less than 5 weight % of functional groups selected from hydroxide, aryls, substituted aryls, halogens, alkoxys, carboxylates, esters, acrylates, oxygen, nitrogen, and carboxyl, based upon the weight of the modifier.Type: GrantFiled: January 17, 2006Date of Patent: September 14, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Henry W. Yang, Bryan R. Chapman, David J. Lohse, Bruce R. Lundmark, Anthony Poloso, Sandra D. Schregenberger, Manika Varma-Nair, Wen Li
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Patent number: 7767773Abstract: This invention relates to a transition metal catalyst compound represented by the structure: wherein: each X is, independently, a hydride, a halogen, a hydrocarbyl, a substituted hydrocarbyl, a halocarbyl, or a substituted halocarbyl; w is 2; each R1, R2, R3, and R4 is, independently, a hydrogen, a hydrocarbyl, a substituted hydrocarbyl, a halocarbyl, a substituted halocarbyl, a halogen, an alkoxide, a sulfide, an amide, a phosphide, a silyl or another anionic heteroatom-containing group, or independently, may join together to form a C4 to C62 cyclic or polycyclic ring structure; each R5, R6, and R7 is, independently, a hydrogen, a hydrocarbyl, a substituted hydrocarbyl, a halocarbyl, a substituted halocarbyl, a halogen, an alkoxide, a sulfide, an amide, a phosphide, a silyl or another anionic heteroatom-containing group, or independently, may join together to form a C4 to C62 cyclic or polycyclic ring structure; each R8 and R9, is, independently, a hydrogen, a hydrocarbyl, a substituted hydrocarbyl, a haType: GrantFiled: December 21, 2007Date of Patent: August 3, 2010Assignee: ExxonMobile Chemical Patents Inc.Inventors: Garth Ronald Giesbrecht, Gregory A. Solan, Christopher J. Davies
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Patent number: 7763562Abstract: This invention relates to a transition metal compound represented by the 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: 1) a substituted or unsubstituted indenyl ligand that is bonded to Y through the four, five, six or seven position of the indenyl ring, or 2) a substituted or unsubstituted heteroindenyl ligand that is bonded to Y through the four, five or six position of the heteroindenyl ring, provided that the bonding position is not the same as the position of the ring heteroatom, or 3) a substituted or unsubstituted fluorenyl ligand that is bonded to Y through the one, two, three, four, five, six, seven or eight position of the fluorenyl ring, or 4) a substituted or unsubstituted heterofluorenyl ligand that is bonded to Y through the one, two, three, four, five or six position of the heteroindenyl ring, provided that the bonding position is not the same as the position of the ring heteroatom; A is a substituted or unsubstiType: GrantFiled: December 14, 2005Date of Patent: July 27, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Alexander Z. Voskoboynikov, Vyatcheslav V. Izmer, Andrey F. Asachenko, Mikhail V. Nikulin, Alexey N. Ryabov, Artyom Y. Lebedev, Catalina L. Coker, Jo Ann M. Canich
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Patent number: 7759415Abstract: This invention relates to a method to make an article comprising the steps of combining a semi-amorphous polymer having a heat of fusion of less than 70 J/g with a plasticizer and optionally one or more additives, to produce a polymer concentrate, combining the polymer concentrate with one or more final materials to produce an article precursor; and forming the article at least partially from the article precursor, wherein the polymer concentrate preferably shows no visible phase separation as demonstrated by the polymer concentrate having no visually detectable loss of the plasticizer after a portion of the polymer concentrate is aged on an absorbent surface for 24 hours at 25° C. An article produced by the method is also disclosed.Type: GrantFiled: April 19, 2006Date of Patent: July 20, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: James N. Coffey, Wen Li, Bryan R. Chapman, Bruce R. Lundmark
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Patent number: 7745544Abstract: Disclosed are processes for preparing an epoxidized and/or hydroxylated ?-olefin/diene copolymer materials such as ethylene/dicyclopentadiene. These processes comprise contacting in a reaction medium a) a copolymeric precursor component with b) a hydrogen peroxide oxidizing agent, in the presence of alkyl-trioxorhenium-based catalyst, under certain reaction conditions. The copolymeric precursor component comprises copolymers of ?-olefins and dienes with these copolymers containing at least one double bond in each diene-derived comonomer. The reaction medium is maintained under reaction conditions which promote formation of oxirane rings at, and/or diol formation across, the sites of the diene-derived co-monomer double bonds in the copolymeric precursor material. Epoxidation and hydroxylation generally increases the glass transition temperature, Tg, of these copolymers and imbues polarity which imparts oil resistance.Type: GrantFiled: November 30, 2006Date of Patent: June 29, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventor: Abhimanyu Onkar Patil
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Patent number: 7741417Abstract: A process for polymerizing propylene is provided. The process comprises contacting propylene and optionally one or more monomers with a catalyst system comprising a bis-indenyl Group 4 metallocene compound supported on silica, the silica treated with one or more organoaluminum compounds and one or more heterocyclic compounds, under slurry conditions in the presence of hydrogen at a temperature of about 50° C. to about 160° C. and a pressure of from about 3 MPa to about 5 MPa to provide a catalyst activity of greater than 30,000 pounds of product per pound of catalyst; and then recovering isotactic polypropylene having a melt flow rate of 20 dg/min or less as measured according to ASTM D-1238 at 230° C. and 2.16 kg.Type: GrantFiled: August 31, 2006Date of Patent: June 22, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Gary L. Casty, Evan J. Piland
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Patent number: 7741420Abstract: This invention relates to a process to polymerize olefins comprising contacting, under supercritical conditions, olefin monomers with a catalyst compound, an activator, optional comonomer, and optional hydrocarbon diluent or solvent.Type: GrantFiled: June 20, 2005Date of Patent: June 22, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventor: Patrick Brant
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Patent number: 7741240Abstract: This invention relates to new transition metal catalyst compounds represented by the formula (I): where: M and M? are, independently, a group 8, 9, 10 or 11 transition metal, preferably Ni, Co, Pd, Cu or Fe; each R group is, independently, is, hydrogen, or a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl substituents, and optionally, adjacent R groups may join together to form a substituted or unsubstituted, saturated, partially unsaturated, or aromatic cyclic or polycyclic substituent; R? is hydrogen, or a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl substituents, and optionally, adjacent R groups may join together with R? to form a substituted or unsubstituted, saturated, partially unsaturated, or aromatic cyclic or polycyclic substituent; each X group is, independently, is, hydrogen, a halType: GrantFiled: May 23, 2005Date of Patent: June 22, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Gregory A. Solan, Jeremie D. A. Pellettier
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Patent number: 7723447Abstract: The invention provides for a process to produce polymers utilizing a hydrofluorocarbon diluent.Type: GrantFiled: December 19, 2003Date of Patent: May 25, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Scott Thomas Milner, Michael Gerard Matturro, Timothy Daniel Shaffer, Robert Norman Webb, David Yen-Lung Chung, Michael Francis McDonald
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Patent number: 7700699Abstract: This invention is directed to processes of making polymer in the presence of a fluorinated hydrocarbon and recovering the polymer. The processes provided enable polymerization processes to be practiced with minimal fouling in the reaction system, and allows for the recovery of the fluorinated hydrocarbon and other hydrocarbons such as hydrocarbons for re-use in the process or hydrocarbon by-products from the polymerization process. The invention is particularly beneficial in the production of propylene polymers and copolymes using bulky ligand metallocene-type catalyst systems.Type: GrantFiled: June 20, 2005Date of Patent: April 20, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Robert O. Hagerty, Randall B. Laird, Michael A. Risch, Pradeep P. Shirodkar, Peijun Jiang
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Patent number: 7683129Abstract: This invention relates to a film comprising a heterogeneous blend of: 1) from 60 to 99 wt % of one or more semi-crystalline polymers; and 2) from 1 to 40 wt % of one or more semi-amorphous polymers; where the blend has: an MFR of 0.5 to 100 dg/min, a haze of 20% or less, and a permanent set of greater than 65%; and where the film is 2.5 to 635 microns thick and has: a haze of 10% or less, a 1° Secant tensile modulus of 100,000 to 30,000 psi, an Elmendorf tear in the machine direction and transverse direction of 45 g/mil or more, a total energy impact of 3 J or more; and a 45 degree gloss of 82 or more.Type: GrantFiled: December 9, 2005Date of Patent: March 23, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Aspy K. Mehta, Sudhin Datta, Wen Li, Srivatsan Srinivas Iyer
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Patent number: 7662885Abstract: This invention relates to a method to make an article comprising the steps of combining a semi-amorphous polymer having a heat of fusion of less than 70 J/g with a plasticizer and optionally one or more additives, to produce a polymer concentrate, combining the polymer concentrate with one or more final materials to produce an article precursor; and forming the article at least partially from the article precursor, wherein the polymer concentrate preferably shows no visible phase separation as demonstrated by the polymer concentrate having no visually detectable loss of the plasticizer after a portion of the polymer concentrate is aged on an absorbent surface for 24 hours at 25° C. An article produced by the method is also disclosed.Type: GrantFiled: April 29, 2005Date of Patent: February 16, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: James N. Coffey, Wen Li, Bruce R. Lundmark, Bryan R. Chapman
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Patent number: 7662895Abstract: Disclosed herein is an elastomeric composition comprising propylene, the composition further comprising a peak melting point temperature below about 110° C., a tensile set of 40% or less, and greater than or equal to about 60% [r]dyads, based on the total number of dyads present in the composition. A process to produce an elastomeric composition is also disclosed.Type: GrantFiled: November 22, 2005Date of Patent: February 16, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventor: Patrick Brant