Carbon Bonded Directly To The Metal Patents (Class 556/58)
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Publication number: 20110236804Abstract: A composition for producing optical elements has a gradient structure, particularly for holographic applications, wherein the gradient structure is formed by a refractivity gradient. The composition is produced from a polymer and a light- and/or temperature-sensitive metal complex and the light- and/or temperature-sensitive metal complex is decomposed upon changing the local refractivity. The result is the formation of a refractivity gradient.Type: ApplicationFiled: October 16, 2009Publication date: September 29, 2011Applicant: Leibniz-Institut fuer Neue Materialien gemeinnuetzige GmbHInventors: Peter William De Oliveira, Peter Koenig, Michael Veith, Omid Yazdani-Assl
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Publication number: 20110237815Abstract: The present invention provides methods for the synthesis of catalysts and precursors thereof. Methods of the invention may comprise combining a catalyst precursor and at least one ligand to generate a catalytically active species, often under mild conditions and in high yields. In some cases, a wide variety of catalysts may be synthesized from a single catalyst precursor. Methods of the invention may also include the preparation of catalysts which, under reaction conditions known in the art, may have been difficult or impossible to prepare and/or isolate due to, for example, steric crowding at the metal center. The present invention also provides catalyst compositions, and precursors thereof, which may be useful in various chemical reactions including olefin metathesis. In some cases, methods of the invention may reduce the number of synthetic and purification steps required to produce catalysts and/or other reaction products, as well as reducing time, cost, and waste production.Type: ApplicationFiled: February 23, 2011Publication date: September 29, 2011Applicant: Massachusetts Institute of TechnologyInventors: Adam S. Hock, Richard R. Schrock
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Patent number: 7973114Abstract: Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one unsubstituted, substituted or fused, heteroaromatic ring system bound via a specific bridge, a catalyst system comprising at least one of the monocyclopentadienyl complexes, the use of the catalyst system for the polymerization or copolymerization of olefins and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system and polymers obtainable in this way.Type: GrantFiled: October 31, 2007Date of Patent: July 5, 2011Assignee: Basell Polyolefine GmbHInventors: Shahram Mihan, Ilya Nifant'ev
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Publication number: 20110118491Abstract: The present invention relates to a process for the production of no-carrier added 99Mo by neutron activation of 98Mo thereby reaching specific radioactivity which allow the use of such produced 99Mo as an option for the 99Mo produced by the fission of 235U. This has been achieved by taking advantage of the recoil of the 99Mo nuclei upon the capture of neutrons by the 98Mo containing compound. These recoiled nuclei are no longer chemically bound to the 98Mo containing compound allowing further specific separation. Preferred 98Mo containing compounds are molybdenum(O)hexacarbonyl [(Mo(CO)6] and molybdenum (VI) di oxodioxinate [C4H3(O) —NC5H3) J2-MoO2.Type: ApplicationFiled: June 2, 2009Publication date: May 19, 2011Inventors: Hubert Theodor Wolterbeek, Peter Bode
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Publication number: 20110101327Abstract: The present invention relates to electronic devices, in particular organic electroluminescent devices, comprising metal complexes which contain isonitrile ligands.Type: ApplicationFiled: July 8, 2009Publication date: May 5, 2011Applicant: Merck Patent GmbHInventors: Philipp Stoessel, Holger Heil, Dominik Joosten, Christof Pflumm, Anja Gerhard
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Publication number: 20110098496Abstract: Novel group 6 organometallic compounds are obtained by reaction of at least one boron compound comprising at least one hydroxy, sulfhydryl or amino function with at least one compound of a group 6 transition metal. These compounds are used in a catalytic composition utilized in an olefin metathesis method.Type: ApplicationFiled: October 26, 2010Publication date: April 28, 2011Applicant: IFP ENERGIES NOUVELLESInventors: Ludovic Chahen, Mikael Berthod, Helene Olivier-Bourbigou
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Patent number: 7932397Abstract: The present invention provides methods for the synthesis of catalysts and precursors thereof. Methods of the invention may comprise combining a catalyst precursor and at least one ligand to generate a catalytically active species, often under mild conditions and in high yields. In some cases, a wide variety of catalysts may be synthesized from a single catalyst precursor. Methods of the invention may also include the preparation of catalysts which, under reaction conditions known in the art, may have been difficult or impossible to prepare and/or isolate due to, for example, steric crowding at the metal center. The present invention also provides catalyst compositions, and precursors thereof, which may be useful in various chemical reactions including olefin metathesis. In some cases, methods of the invention may reduce the number of synthetic and purification steps required to produce catalysts and/or other reaction products, as well as reducing time, cost, and waste production.Type: GrantFiled: November 22, 2006Date of Patent: April 26, 2011Assignee: Massachusetts Institute of TechnologyInventors: Adam S. Hock, Richard R. Schrock
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Publication number: 20100239512Abstract: Disclosed are metal organic frameworks that adsorb nitric oxide, NO-loaded metal organic frameworks, methods of preparing the NO-loaded metal organic frameworks, methods of releasing the nitric oxide into a solution or into air, and uses of the metal organic frameworks.Type: ApplicationFiled: August 16, 2007Publication date: September 23, 2010Inventors: Russell Edward Morris, Paul Stewart Wheatley
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Patent number: 7795167Abstract: Cyclopentadienyl complexes of group 6 having at least one cyclopentadienyl system which is substituted by at least one silyl group which bears at least one halogen substituent and a catalyst system comprising at least one of the cyclopentadienyl complexes, and also a process for preparing them, the use of the catalyst system for the polymerization or copolymerization of olefins and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system.Type: GrantFiled: August 16, 2005Date of Patent: September 14, 2010Assignee: Basell Polyolefine GmbHInventors: Shahram Mihan, Markus Enders, Pablo Fernandez
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Patent number: 7776980Abstract: Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one bridged keto, thioketo, imino or phosphino group, a catalyst system comprising at least one of the monocyclopentadienyl complexes and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system.Type: GrantFiled: March 18, 2006Date of Patent: August 17, 2010Assignee: Basell Polyolefine GmbHInventors: Shahram Mihan, Benno Bildstein, Georg Steiner
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Publication number: 20100168198Abstract: The present invention is a mitochondria-targeted antioxidant prodrug useful for the prevention or treatment of diseases or conditions associated with mitochondrial dysfunction resulting from changes in the mitochondrial redox environment. Antioxidant prodrugs of the invention are produced by modifying an antioxidant to a fatty acid so that the resulting prodrug is targeted to and activated by an enzyme of mitochondrial fatty acid beta-oxidation.Type: ApplicationFiled: January 27, 2010Publication date: July 1, 2010Inventors: Marion W. Anders, James L. Robotham, Shey-Shing Sheu, Paul Spencer Brookes, Jalil Shojaie, Leif Olson, Richard L. Parton
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Patent number: 7652132Abstract: The present invention provides a metal-organic framework (“MOF”) comprising a plurality of metal clusters and a plurality of multidentate linking ligands. Each metal of the plurality of metal clusters comprises one or more metal ions. Each ligand of the plurality of multidentate linking ligands connects adjacent metal clusters. The present invention also provides a method of forming the metal-organic framework. The method of the invention comprises combining a solution comprising one or metal ions with a multidentate linking ligand having a sufficient number of accessible sites for atomic or molecular adsorption that the surface area of the resulting metal-organic framework is greater than 2,900 m2/g.Type: GrantFiled: May 7, 2004Date of Patent: January 26, 2010Assignee: The Regents of the University of MichiganInventors: Omar M. Yaghi, Adam J. Matzger, Jesse L. C. Rowsell
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Patent number: 7635783Abstract: The present invention relates to a process for the meso-selective preparation of ansa-metallocene complexes of the formula (I), which comprises reacting a ligand starting compound of the formula (II) with a transition metal compound of the formula III, where R1, R1 are identical or different and are each hydrogen or an organic radical having from 1 to 40 carbon atoms, R2, R2 are identical or different and are each hydrogen or an organic radical having from 1 to 40 carbon atoms, R3 is a bulky organic radical which has at least 3 carbon atoms, is bound to the oxygen atom via a nonaromatic carbon or silicon atom and may be substituted by halogen atoms or further organic radicals having from 1 to 20 carbon atoms and may also contain heteroatoms selected from the group consisting of Si, N, P, O and S, T, T? are identical or different and are each a divalent organic group which has from 1 to 40 carbon atoms and together with the cyclopentadienyl ring forms at least one further saturated or unsaturated, substitutedType: GrantFiled: December 15, 2004Date of Patent: December 22, 2009Assignee: Basell Polyolefine GmbHInventors: Reynald Chevalier, Patrik Müller, Christian Sidot, Christian Tellier, Valerie Garcia, Ludovic Delancray
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Patent number: 7619106Abstract: The invention relates to a process for preparing hydrogenated or partially hydrogenated, racemic ansa-metallocene complexes by reacting bridged or unbridged transition metal complexes with alkali metal compounds or alkaline earth metal compounds, heating the resulting reaction mixture to a temperature in the range from ?78 to 250° C. and at least partially hydrogenating the reaction products in the presence of a suitable catalyst, to the corresponding hydrogenated or partially hydrogenated metallocenes and to their use as catalysts or as a constituent of catalysts for the polymerization of olefinically unsaturated compounds or as reagents or catalysts in stereoselective synthesis.Type: GrantFiled: October 22, 2003Date of Patent: November 17, 2009Assignee: Basell Polyolefine GmbHInventors: Hans-Robert-Hellmuth Damrau, Patrik Müller, Valerie Garcia, Christian Sidot, Christian Tellier, Stéphanie Duchiron, Jean-Francois Lelong
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Publication number: 20090281343Abstract: A complex for transference of a nitrogen atom to an electrophilic reagent comprises a hard-hard-hard pincer ligand and an early transition metal bound to a nitride. The pincer ligand can be an OCO ligand and the transition metal can be Mo. The complex can be used to transfer the nitrogen atom bound to the metal to an electrophile in a method to produce a nitrogen containing molecule. In one novel nitrogen transfer reaction, a Mo—N triple bond is broken where the nitrogen transfers to the sp2 hybridized carbon of an acid chloride to form a nitrile.Type: ApplicationFiled: May 8, 2009Publication date: November 12, 2009Applicant: University of Florida Research Foundation, Inc.Inventors: Adam Veige, Soumya Sarkar
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Publication number: 20090202742Abstract: This invention relates to organometallic precursor compounds represented by the formula (L)M(L?)2(NO) wherein M is a Group 6 metal, L is a substituted or unsubstituted anionic ligand and L? is the same or different and is a ? acceptor ligand, a process for producing the organometallic precursor compounds, and a method for producing a film, coating or powder from the organometallic precursor compounds.Type: ApplicationFiled: April 22, 2009Publication date: August 13, 2009Inventor: Scott Houston Meiere
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Publication number: 20090173665Abstract: Oil soluble catalysts are used to convert polynuclear aromatic compounds in a hydrocarbon feedstock to higher value mono-aromatic compounds. The catalyst complex includes a catalytic metal center that is bonded to a plurality of organic ligands that make the catalyst complex oil-soluble. The ligands include an aromatic ring and a ligand spacer group. The ligand spacer group provides spacing of 2-6 atoms between the metal center and the aromatic ring. The spacing between the aromatic group and the catalytic metal center advantageously allows the catalyst to selectively crack polynuclear aromatic rings while preserving one of the aromatic rings, thereby increasing the content of mono-aromatic compounds in the hydrocarbon feedstock.Type: ApplicationFiled: January 3, 2008Publication date: July 9, 2009Applicant: HEADWATERS TECHNOLOGY INNOVATION, LLCInventors: Bing Zhou, Zhenhua Zhou, Zhihua Wu
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Publication number: 20090156392Abstract: In one aspect of this invention, catalytic compositions produced by calcining intermediates of the formula [NR4]x[M12M2S8] are provided, wherein M1 is Mo or W; M2 is Co, Ni, or Pd; x is 2 or 3; and R is a C3-C8 alkyl group. Another aspect provides catalytic compositions produced by calcining intermediates of the formula Ax[M12M2S8], wherein A is selected from K, Rb, Cs, Sr, and Ba. Also provided are methods for making the compositions, and methods of using the compositions for the catalytic conversion of syngas into C1-C4 alcohols such as ethanol.Type: ApplicationFiled: December 8, 2008Publication date: June 18, 2009Applicant: Range Fuels, Inc.Inventor: Karl Kharas
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Patent number: 7547796Abstract: This invention relates to organometallic precursor compounds represented by the formula (Cp(R?)x)yM(H)z-y, a process for producing the organometallic precursor compounds, and a method for depositing a metal and/or metal carbide layer, e.g., Ta metal and/or TaC layer, on a substrate by the thermal or plasma enhanced disassociation of the organometallic precursor compounds, e.g., by CVD or ALD techniques. The metal and/or metal carbide layer is useful as a liner or barrier layer for conducting metals and high dielectric constant materials in integrated circuit manufacturing.Type: GrantFiled: August 9, 2006Date of Patent: June 16, 2009Assignee: Praxair Technology, Inc.Inventors: David Walter Peters, David M. Thompson
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Patent number: 7541481Abstract: Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one unsubstituted, substituted or fused, heteroaromatic ring system bound via a specific bridge, a catalyst system, comprising at least one of these monocyclopentadienyl complexes, the use of the catalyst system for the polymerization or copolymerization of olefins and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system and polymers obtainable therewith.Type: GrantFiled: August 11, 2003Date of Patent: June 2, 2009Assignee: Basell Polyolefin GmbHInventors: Shahram Mihan, Ilya Nifant'ev
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Publication number: 20090124772Abstract: A process for synthesizing an organic transition metal complex compound with an atom group having an electron-donor ability, in an industrially and economically advantageous manner, without a compound having a proton-donor ability being a metal salt, and a metathesis catalyst produced with the use of the above process, are provided. A process for producing an organic transition metal complex compound in which an atom group having an electron-withdrawing ability can be converted into an atom group having a stronger electron-donor ability, by contacting an compound having a proton-donor ability with the organic transition metal complex compound with an atom group having an electron-withdrawing ability, in the presence of an basic compound, and a metathesis catalyst of which the content of an alkali metal is reduced, and which is obtainable with the use of the above process, are provided.Type: ApplicationFiled: October 17, 2006Publication date: May 14, 2009Applicant: MITSUI CHEMICALS, INC.Inventors: Takashi Ochiai, Yuichi Okawa, Tadahiro Sunaga
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Patent number: 7507688Abstract: Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one unsubstituted, substituted or fused, 5-membered heteroaromatic ring system bound via a specific bridge, a catalyst system comprising at least one of the monocyclopentadienyl complexes, the use of the catalyst system for the polymerization or copolymerization of olefins and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system and polymers obtainable in this way.Type: GrantFiled: December 5, 2003Date of Patent: March 24, 2009Assignee: Basell Polyolefine GmbHInventors: Shahram Mihan, Ilya Nifant'ev, Cristina Nicoara, Markus Enders
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Publication number: 20090018292Abstract: Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one bridged keto, thioketo, imino or phosphino group, a catalyst system comprising at least one of the monocyclopentadienyl complexes and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system.Type: ApplicationFiled: March 18, 2006Publication date: January 15, 2009Applicant: Basell Polyolefine GmbHInventors: Shahram Mihan, Benno Bildstein, Georg Steiner
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Patent number: 7462405Abstract: Disclosed is an electroluminescent device comprising a light-emitting layer containing a light emitting phosphorescent material that contains an organometallic complex comprising a metal selected from the group consisting of Mo, W, Re, Ru, and Os that is coordinated to a neutral or negatively-charged ligand group through the ? electrons of the ligand with a hapticity greater than 2. The device provides useful light emissions.Type: GrantFiled: October 27, 2004Date of Patent: December 9, 2008Assignee: Eastman Kodak CompanyInventors: Tommie L. Royster, Jr., David J. Giesen, Adam Freeman
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Publication number: 20080227012Abstract: Taught herein is a charge control agent comprising a specific type of gallic acid metal complex represented by the following Chemical Formula (1) or Chemical Formula (2): In the formula (1), R1 represents an alkyl group containing 1-12 carbon atoms, an Alkenyl group containing 1-12 carbon atoms, a substituted or unsubstituted aryl group containing 6-12 carbon atoms, or a hydrogen atom; R2 and R4 can independently represent an alkyl group containing 1-12 carbon atoms, an Alkenyl group containing 2-12 carbon atoms, an alkoxy group containing 1-12 carbon atoms, a substituted or unsubstituted aryl group containing 6-12 carbon atoms, a halogen atom, or a hydrogen atom; R3 represents an alkyl group containing 1-12 carbon atoms, a substituted or unsubstituted aryl group containing 6-12 carbon atoms, a potassium atom, a sodium atom or a hydrogen atom. M represents a divalent to tetravalent metal atom, A is a counterion, m is a number from 1 to 3, and n is 1 or 2.Type: ApplicationFiled: May 23, 2007Publication date: September 18, 2008Applicant: HUBEI DINGLONG CHEMICAL CO., LTDInventors: Lin WU, Zhilin XIA, Shuangquan ZHU
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Patent number: 7358381Abstract: The invention relates to a process for preparing racemic metallocene complexes by reacting transition metal complexes with cyclopentadienyl derivatives of alkali metals or alkaline earth metals and heating the reaction mixture obtained in this way to a temperature in the range from ?78 to 250° C., to the corresponding metallocene complexes themselves and to their use as catalysts or as constituents of catalysts for the polymerization of olefinically unsaturated compounds or as reagents or catalysts in stereoselective synthesis.Type: GrantFiled: October 22, 2003Date of Patent: April 15, 2008Assignee: Basell Polyolefine GmbHInventors: Hans-Robert-Hellmuth Damrau, Patrik Müller, Valerie Garcia, Christian Sidot, Christian Tellier, Jean-François Lelong, Eric Huriez
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Patent number: 7345184Abstract: A method and system for refurbishing a metal carbonyl precursor. The method includes providing a metal precursor vaporization system containing a metal carbonyl precursor containing un-reacted and partially reacted metal carbonyl precursor, flowing a CO-containing gas through the metal precursor vaporization system to a precursor collection system in fluid communication with the metal precursor vaporization system to transfer the un-reacted metal carbonyl precursor vapor to the precursor collection system, and collecting the transferred metal carbonyl precursor in the precursor collection system. A method is provided for monitoring at least one metal carbonyl precursor parameter to determine a status of the metal carbonyl precursor and the need for refurbishing the metal carbonyl precursor.Type: GrantFiled: March 31, 2005Date of Patent: March 18, 2008Assignees: Tokyo Electron Limited, International Business Machines CorporationInventors: Kenji Suzuki, Gerrit J. Leusink, Fenton R. McFeely
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Patent number: 7332618Abstract: This invention relates to organometallic precursor compounds represented by the formula (H)mM(R)n wherein M is a metal or metalloid, R is the same or different and is a substituted or unsubstituted, saturated or unsaturated, heterocyclic radical containing at least one nitrogen atom, m is from 0 to a value less than the oxidation state of M, n is from 1 to a value equal to the oxidation state of M, and m+n is a value equal to the oxidation state of M, a process for producing the organometallic precursor compounds, and a method for producing a film or coating from the organometallic precursor compounds.Type: GrantFiled: August 1, 2005Date of Patent: February 19, 2008Assignee: Praxair Technology, Inc.Inventor: Scott Houston Meiere
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Patent number: 7253213Abstract: The invention relates to a process for polymerising a monomer, polymerizing and/or crosslinking an oligomer, or crosslinking a polymer or copolymer, said monomer, oligomer, polymer and copolymer being selected among precursor monomers, urethane, thiourethane and episulfide oligomers, and urethane, thiourethane and episulfide polymers and copolymers, which comprises: (a) adding to precursor monomers or oligomers or polymers or copolymers an effective amount of at least one complex of Co, Mo or W which under irradiation conditions photochemically reacts to release at least one anionically charged nucleophile or uncharged Lewis base; and (b) irradiating the mixture of (a) to release the at least one anionically charged nucleophile or uncharged Lewis base to initiate polymerisation and/or crosslinking of the monomer, oligomer, polymer or copolymer.Type: GrantFiled: April 26, 2005Date of Patent: August 7, 2007Inventors: Charles R. Kutal, Sirisoma Wanigatunga, Gabriel Keita, Yassin Turshani
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Patent number: 7250523Abstract: Compounds and processes for catalytic ring-opening cyclooligomerization metathesis and ring-closing metathesis of olefins are described. The compound is a molybdenum or tungsten metal (M) complex which comprises an imido ligand (N—R) bound to the M to provide an M=N—R site, an M=C reaction site wherein the C of the M=C reaction site is tethered to the R of the imido ligand via a carbon or carbon and heteroatom (NOS) chain containing 1 to 12 carbon atoms to form a ring structure, and two to four ligands (R?) bound to the M to provide two to four M-R? sites. In particular embodiments, the M-R? sites include each of the oxygens of a dialkoxide ligand or each of the nitrogens of an ?1-pyrrolyl ligand bound to the M.Type: GrantFiled: October 22, 2003Date of Patent: July 31, 2007Assignee: Board of Trustees of Michigan State UniversityInventors: Aaron L. Odom, James T. Ciszewski
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Patent number: 7250478Abstract: The present invention refers to a metallocene catalyst component for producing polyolefins according to formula (I) R?s (CpRn)g (CpRn) M Q3-g (I) or according to formula (II) R?(CpRn)MeXQ (II) wherein—each Cp is a substituted or unsubstituted cyclopentadienyl ring with the bridge-head position of at least one of the cyclopentadienyl rings being occupied by a silicon atom;—each R is the same or different and is hydrogen or a hydrocarbyl radical such as alkyl, alkenyl, aryl, alkylaryl or arylalkyl radical containing from 1 to 20 carbon atoms or two carbon atoms are joined together to form a C4-C6 ring; —R? is a structural bridge between two Cp rings;—M is a group IIIB, IVB, VB or VIB metal;—Q is a hydrocarbyl radical such as aryl, alkyl, alkenyl, alkylaryl or arylalkyl radical having from 1 to 20 carbon atoms, a hydrocarboxy radical having from 1 to 20 carbon atoms or a halogen and can be the same or different from each other;—s is 0 or 1, g is 0, 1 or 2 and s is 0 when g is 0, n is 4 when s is 1 and n is 5 wheType: GrantFiled: September 24, 2003Date of Patent: July 31, 2007Assignee: TOTAL Petrochemicals Research FeluyInventor: Abbas Razavi
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Patent number: 7244858Abstract: This invention relates to organometallic precursor compounds represented by the formula (L)M(L?)2(NO) wherein M is a Group 6 metal, L is a substituted or unsubstituted anionic ligand and L? is the same or different and is a ? acceptor ligand, a process for producing the organometallic precursor compounds, and a method for producing a film, coating or powder from the organometallic precursor compounds.Type: GrantFiled: January 19, 2005Date of Patent: July 17, 2007Assignee: Praxair Technology, Inc.Inventor: Scott Houston Meiere
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Patent number: 7238821Abstract: This invention relates to a one pot method for large scale production of an organometallic compound comprising (i) reacting a hydrocarbon or heteroatom-containing material with a base material in the presence of a solvent and under reaction conditions sufficient to produce a first reaction mixture comprising a hydrocarbon or heteroatom-containing compound, (ii) adding a metal source compound to said first reaction mixture, (iii) reacting said hydrocarbon or heteroatom-containing compound with said metal source compound under reaction conditions sufficient to produce a second reaction mixture comprising said organometallic compound, and (iv) separating said organometallic compound from said second reaction mixture.Type: GrantFiled: October 6, 2003Date of Patent: July 3, 2007Assignee: Praxair Technology, Inc.Inventors: Scott Houston Meiere, David Walter Peters
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Patent number: 7230128Abstract: Fluorenyl-containing metallocenes are disclosed along with methods for making the metallocenes. Also disclosed are methods for using the metallocenes as polymerization catalysts. In addition, polymers resulting from such polymerizations are disclosed.Type: GrantFiled: May 10, 2002Date of Patent: June 12, 2007Assignee: Phillips Potroleum CompanyInventors: Helmut G. Alt, Syriac J. Palackal, Konstantinos Patsidis, M. Bruce Welch, Rolf L. Geerts, Eric T. Hsieh, Max P. McDaniel, Gil R. Hawley, Paul D. Smith
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Patent number: 7211235Abstract: A method is described for the manufacture of hydrotalcites by using at least one compound of a bivalent metal (Component A) and at least one compound of a trivalent metal (Component B), wherein at least one of these components is not used in the form of a solution, characterized in that a) at least one of the Components A and/or B which is not used in the form of a solution, shortly before or during mixing of the components, and/or b) the mixture containing the Components A and B is subjected to intensive grinding until an average particle size (D50) in the range of approx. 0.1 to 5 ?m is obtained, and optionally, after aging treatment or hydrothermal treatment, the resulting hydrotalcite product is separated, dried, and optionally calcinated.Type: GrantFiled: April 18, 2002Date of Patent: May 1, 2007Assignee: Sud-Chemie AGInventors: Max Eisgruber, Jürgen Ladebeck, Jürgen Koy, Hubert Schiessling, Wolfgang Buckl, Herrmann Ebert
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Patent number: 7198771Abstract: The invention comprises a chemical composition with the structure shown below. The composition can be polymerized or pyrolyzed, forming transition metal nanoparticles homogeneously dispersed in a thermoset or carbon composition. The size of the nanoparticles can be controlled by manipulating the number and arrangement of functional groups in the composition and by changing the conditions of the polymerization or pyrolysis. The resulting thermosets and carbon compositions have useful magnetic, electric, mechanical, catalytic and/or optical properties.Type: GrantFiled: August 28, 2003Date of Patent: April 3, 2007Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M. Keller, Joseph Perrin, Syed B. Qadri
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Patent number: 7196210Abstract: The ability to design and construct solid-state materials with pre-determined structures is a grand challenge in chemistry. An inventive strategy based on reticulating metal ions and organic carboxylate links into extended networks has been advanced to a point that has allowed the design of porous structures in which pore size and functionality can be varied systematically. MOF-5, a prototype of a new class of porous materials and one that is constructed from octahedral Zn—O—C clusters and benzene links, was used to demonstrate that its 3-D porous system can be functionalized with the organic groups, —Br, —NH2, —OC3H7, —OC5H11, —H4C2, and —H4C4, and its pore size expanded with the long molecular struts biphenyl, tetrahydropyrene, pyrene, and terphenyl.Type: GrantFiled: May 2, 2005Date of Patent: March 27, 2007Assignee: The Regents of the University of MichiganInventors: Omar M. Yaghi, Mohamed Eddaoudi, Hailian Li, Jaheon Kim, Nathaniel Rosi
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Patent number: 7193099Abstract: The invention relates to a process for preparing racemic metallocene biphenoxide complexes by reacting bridged transition metal complexes with cyclopentadienyl derivatives of alkali metals or alkaline earth metals and heating the reaction mixture obtained in this way to a temperature in the range from ?78 to 250° C., to the corresponding metallocene biphenoxide complexes and to their use as catalysts or as constituents of catalysts for the polymerization of olefinically unsaturated compounds or as reagents or catalysts in stereoselective synthesis.Type: GrantFiled: October 22, 2003Date of Patent: March 20, 2007Assignee: Basell Polyolefine GmbHInventors: Hans-Robert-Hellmuth Damrau, Patrik Müller, Valerie Garcia, Christian Sidot, Christian Tellier, Jean-François Lelong
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Patent number: 7157592Abstract: A method for producing ferrocene and other organometallic compounds of cyclopentadiene is disclosed. Dry iron chloride (or other selected metal salt) is added to a solution of cyclopentadiene, diethylamine, potassium and dibenzo-18-crown-6 ether in a cooled flask under a dry nitrogen atmosphere. The solution is mixed vigorously for a few hours and any excess diethylamine is evaporated. Ferrocene (or other organometallic compounds of cyclopentadiene) is extracted from the residue using petroleum ether, and any solvent is removed.Type: GrantFiled: December 30, 2005Date of Patent: January 2, 2007Assignee: Property Development Corporation International Ltd., Inc.Inventors: Elmira M. Ramazanova, Alimamed L. Shebanov
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Patent number: 7122498Abstract: Metallocenes and catalyst systems for olefin polymerization derived therefrom. The metallocenes may be represented by the formula: wherein M1 preferably is zirconium or hafnium; and R12 is different from hydrogen.Type: GrantFiled: June 29, 2001Date of Patent: October 17, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: James R. Hart, William T. Haygood, Terry J. Burkhardt, Robert T. Li
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Hetero cyclic metallocene compounds and use thereof in catalyst system for producing olefin polymers
Patent number: 7112638Abstract: A metallocene compound of general formula (I): LGZMXp, wherein L is a divalent group, Z is a moiety of formula (II), wherein R3 and R4 are selected from hydrogen and hydrocarbon groups; A and B are selected from S, O or CR5, wherein R5 is selected from hydrogen and hydrocarbon groups, either A or B being different from CR5; G is a moiety of formula (III), wherein R6, R7, R8 and R9 are selected from hydrogen and hydrocarbon groups, M is an atom of a transition metal, X is selected from a halogen atom, a R10, OR10, OSO2CF3, OCOR10, SR10, NR102 or PR102 group, wherein the substituents R10 is hydrogen and a hydrocarbon group; p is an integer from 0 to 3.Type: GrantFiled: December 22, 2000Date of Patent: September 26, 2006Assignee: Basell Polyolefine GmbHInventors: Ilya E. Nifant'ev, Simona Guidotti, Luigi Resconi, Ilya P. Laishevtsev -
Patent number: 7105672Abstract: A catalyst compound of formula I or II: (wherein R1–R11, M, E, T, X, Y, m and n are defined herein). The compound, when combined with a suitable activator, is active for the polymerization of olefins. In an embodiment of combinations of the R1–R7 and T groups, these catalysts can engage in weak attractive non-covalent interactions with the polymer chain. In another embodiment, the R1–R11 groups in formula II exhibit weak attractive non-covalent interactions with the polymer chain.Type: GrantFiled: September 7, 2005Date of Patent: September 12, 2006Assignee: The University of Hong KongInventors: Michael Chi-Wang Chan, Chi-Fai Kui
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Patent number: 7067686Abstract: Disclosed are methods of producing di-, tri- or tetrabenzyl-metal compounds comprising combining a metal salt with a (benzyl)nMgX2-n compound at from less than 30° C., wherein n is 1 or 2 and X is a monoanionic group; wherein the combining takes place in a diluent mixture comprising from 0 to 80% by volume of an ether diluent and a diluent selected from the group consisting of aromatic diluents, halogenated hydrocarbon diluents, and mixtures thereof. The methods are characterized by employing various mixtures of diluents, and in some cases, minimal to no ether diluent.Type: GrantFiled: July 21, 2005Date of Patent: June 27, 2006Assignee: Univation Technologies, LLCInventors: George Rodriguez, David Arthur Cano, David H. McConville, Frank C. Rix
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Patent number: 7049453Abstract: The present invention relates to a process for preparing specific transition metal compounds, novel transition metal compounds and also catalyst systems and their use for the homo- or copolymerization of olefins.Type: GrantFiled: March 24, 2003Date of Patent: May 23, 2006Assignee: Celanese Ventures GmbHInventors: Jörg Schottek, Tim Dickner, Jörg Ludwig Schulte
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Patent number: 7045644Abstract: The present invention relates to catalyst system containing at least one imidochrome compound and at least one activation compound. This invention also relates to imidochrome compounds, to a method for olefin polymerization and to methods for producing said imidochrome compounds.Type: GrantFiled: April 22, 2004Date of Patent: May 16, 2006Assignee: Basell Polyolefine GmbHInventors: Markus Schopf, Joerg Sundermeyer, Jennifer Kiepke, Konstantin A. Rufanov, Walter Heitz, Uwe Peucker
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Patent number: 7030257Abstract: Disclosed herein are novel high oxidation state metallocene compounds, processes for preparing these compounds and uses of these compounds.Type: GrantFiled: April 13, 2004Date of Patent: April 18, 2006Assignee: Agency for Science, Technology and ResearchInventors: Zhiqiang Gao, Fang Xie, Hong Xie
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Patent number: 7019158Abstract: Chiral organometallic compounds are provided which comprise certain non-symmetrically substituted cyclopentadiene complexed to a transition metal. The cyclopentadiene has a second coordinating group which also complexes the transition metal and is attached to the cyclopentadiene by means of a chiral connecting chain. Preferred transition metals include rhodium, ruthenium, iridium, cobalt, iron, manganese, chromium, tungsten, molybdenum, nickel, palladium, or platinum. These chiral organometallic compounds find use in asymmetric synthesis to produce chiral compounds.Type: GrantFiled: August 2, 2002Date of Patent: March 28, 2006Assignee: Avecia LimitedInventor: Richard John Whitby
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Patent number: RE39156Abstract: A process for the preparation of an olefin polymer by polymerization or copolymerization of an olefin of the formula Ra—CH?CH—Rb, in which Ra and Rb are identical or different and are a hydrogen atom or a hydrocarbon radical having 1 to 14 carbon atoms or Ra and Rb, together with the atoms connecting them, can form a ring, at a temperature of from ?60° to 200° C., at a pressure of from 0.Type: GrantFiled: January 19, 2000Date of Patent: July 4, 2006Assignee: Basell Polyolefine GmbHInventors: Andreas Winter, Martin Antberg, Bernd Bachmann, Volker Dolle, Frank Küber, Jürgen Rohrmann, Walter Spaleck
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Patent number: RE39532Abstract: The novel metallocenes of the formula I in which, preferably, M1 is Zr or Hf, R1 and R2 are alkyl or halogen, R3 and R4 are hydrogen, R5 and R6 are alkyl or haloalkyl, —(CR8R9)m—R7—(CR8R9)n— is a single- or multi-membered chain in which R7 may also be a (substituted) hetero atom, m+n is zero or 1, and R10 is hydrogen, form, together with aluminoxanes as cocatalysts, a very effective catalyst system for the preparation of polyolefins of high stereospecificity and high melting point.Type: GrantFiled: July 17, 1997Date of Patent: March 27, 2007Assignee: Basell Polyolefine GmbHInventors: Andreas Winter, Martin Antberg, Walter Spaleck, Jürgen Rohrmann, Volker Dolle
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Patent number: RE39561Abstract: The novel metallocenes of the formula I in which, preferably, M1 is Zr or Hf, R1 and R2 are alkyl or halogen, R3 and R4 are hydrogen, R5 and R6 are alkyl or haloalkyl, —(CR8R9)m—R7—(CR8R9)n— is a single- or multi-membered chain in which R7 may also be a (substituted) hetero atom, m+n is zero or 1, and R10 is hydrogen, form, together with aluminoxanes as cocatalysts, a very effective catalyst system for the preparation of polyolefins of high stereospecificity and high melting point.Type: GrantFiled: July 17, 1997Date of Patent: April 10, 2007Assignee: Basell Polyoefine GmbHInventors: Andreas Winter, Martin Antberg, Walter Spaleck, Jürgen Rohrmann, Volker Dolle