Transition Metal Bonded To Carbon Atom Patents (Class 526/170)
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Patent number: 7465688Abstract: An isomerization process comprising the step of contacting a slurry or a solution comprising the meso or meso-like form of one or more bridged metallocene compounds of group 4 of the Periodic Table of the Elements having C2 or C2-like symmetry with an isomerization catalyst of formula (I) [R4W]+X? (I) wherein: W is a nitrogen or a phosphorus atom; R, equal to or different from each other, are C1-C40 hydrocarbon radicals and X? is an halide atom.Type: GrantFiled: September 7, 2004Date of Patent: December 16, 2008Assignee: Basell Polyolefine GmbHInventors: Simona Guidotti, Davide Balboni
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Publication number: 20080306229Abstract: Dendritic amphiphilic polymers are contemplated. Most preferably, such polymers will be fabricated in a single step to the final product that may further be derivatized with, among others, biological relevant molecules. In alternative aspects, precursors of such molecules are prepared in a single step, and the precursors are then reacted to the dendritic amphiphilic polymers.Type: ApplicationFiled: March 5, 2008Publication date: December 11, 2008Inventors: Zhibin Guan, Guanghui Chen
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Patent number: 7459509Abstract: The invention provides ethylene/?-olefin copolymers exhibiting improved environmental stress cracking resistance properties, and methods for the production of the copolymers in a single reactor by means of a bimetallic catalyst including a Ziegler component and a metallocene component.Type: GrantFiled: February 24, 2007Date of Patent: December 2, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: David Bruce Barry, Gary M. Diamond, Hitesh A. Fruitwala, Shih-May Christine Ong, Chunming Wang
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Patent number: 7459511Abstract: A process for polymerizing 1-butene comprising the step of contacting under polymerization conditions 1-butene and optionally from 0 to 20% by mol of an alpha olefin with a catalyst system obtainable by contacting a bridget metallocene compound of formula (I) wherein R1 and R2 are an hydrocarbon radical A is a carbon atom, a germanium atom or a silicon atom; m is 1, 2; M is a metal of group 4 of the Periodic Table of the Elements; X, is hydrogen, a halogen atom, or a group R, OR, OSO2CF3, OCOR, SR, NR2 or PR2, wherein the substituents R are hydrocarbon radical; L is a moiety of formula (IIa) or (IIb) wherein T is an oxigen (O) or sulphur (S) atom or a CH2 group; and R3 and R4 are hydrogen atoms or hydrocarbon radicals; one or more alumoxanes or compounds able to form an alkylmetallocene cation; and optionally an organo aluminium compound.Type: GrantFiled: June 11, 2002Date of Patent: December 2, 2008Assignee: Basell Polyolefine GmbHInventor: Luigi Resconi
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Publication number: 20080293899Abstract: The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a pyridyl amine or a heteroaryl-amine compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene.Type: ApplicationFiled: August 8, 2008Publication date: November 27, 2008Inventors: David H. McConville, Lily Ackerman, Robert T. Li, Xiahong Bei, Matthew C. Kuchta, Tom Boussie, John F. Walzer, JR., Gary Diamond, Francis C. Rix, Keith A. Hall, Anne LaPointe, James Longmire, Vince Murphy, Pu Sun, Dawn Verdugo, Susan Schofer, Eric Dias
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Publication number: 20080287615Abstract: The present invention relates to a gas phase process for polymerizing one or more hydrocarbon monomer(s) in the presence of a catalyst system and a fluorinated hydrocarbon, where the fluorinated hydrocarbon is present at a partial pressure of 6.9 to 348 kPa in the reactor and the reactor temperature is from 30 to 120° C.Type: ApplicationFiled: May 19, 2005Publication date: November 20, 2008Inventors: Robert Olds Hagerty, Kevin B. Stavens, Randall B. Laird, Michael F. McDonald, Pradeep P. Shirodkar
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Publication number: 20080287620Abstract: In a process for producing an elastomer composition, ethylene, at least one alpha-olefin, and at least one diene is contacted with a catalyst system comprising at least one metallocene catalyst compound and a non-coordinating anion activator.Type: ApplicationFiled: May 14, 2007Publication date: November 20, 2008Inventor: Periagaram Srinivasan Ravishankar
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Publication number: 20080287618Abstract: The present invention discloses articles having excellent dimensional stability, solid state mechanical properties and barrier properties that are produced with a polyethylene resin prepared with a catalyst system based on a bridged bisindenyl ligand.Type: ApplicationFiled: November 18, 2005Publication date: November 20, 2008Applicant: Total Petrochemicals Research FeluyInventor: Eric Maziers
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Patent number: 7452948Abstract: An improved method for the preparation of a supported polymerisation catalyst system comprises the combination of (i) a porous support (ii) a polymerisable monomer, (iii) a polymerisation catalyst, and (iv) a cocatalyst, characterised in that the polymerisable monomer is added to the porous support before addition of one or both of the polymerisation catalyst and the cocatalyst. The preferred polymerisation catalyst is a metallocene complex and the preferred porous support is silica. The resultant supported catalysts are stable over long periods of time. The supported catalyst are particularly suitable for use in the gas phase.Type: GrantFiled: August 14, 2003Date of Patent: November 18, 2008Assignee: Ineos Europe LimitedInventors: Grant Berent Jacobsen, Brian Stephen Kimberley, Sergio Mastroianni, Michael John Taylor
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Patent number: 7452949Abstract: The present invention relates to organometallic transition metal compounds of the formula (I)Type: GrantFiled: December 6, 2004Date of Patent: November 18, 2008Assignee: Basell Polyolefine GmbHInventors: Yoshikuni Okumura, Ilya Nifant'ev, Michael J. Elder, Pavel V. Ivchenko, Vladimir V. Bagrov
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Publication number: 20080281060Abstract: A process for preparing a polymer containing derived units of one or more alpha olefins of formula CH2?CHW wherein W is a C3-C10 hydrocarbon radical and optionally from 0 to 81% by mol of derived units of propylene or 1-butene, comprising contacting under polymerization conditions one or more alpha olefins of formula CH2?CHW and optionally propylene or 1-butene in the presence of a catalyst system obtainable by contacting: a) a metallocene compound of formula (I) ?wherein M, X, L, T1, T2, T3 and R1 are described in the text; and (b) an alumoxane or a compound capable of forming an alkyl metallocene cation.Type: ApplicationFiled: March 8, 2005Publication date: November 13, 2008Applicant: Basell Polyotefine GmbHInventors: Luigi Resconi, Eleonora Ciaccia, Friederike Morhard, Giampaolo Pellegatti
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Publication number: 20080281061Abstract: A process for preparing a polymer containing derived units of one or more alpha olefins of formula CH2?CHW wherein W is a C3-C10 hydrocarbon radical and optionally from 0 to 81% by mol of derived units of propylene or 1-butene, comprising contacting under polymerization conditions one or more alpha olefins of formula CH2?CHW and optionally propylene or 1-butene in the presence of a catalyst system obtainable by contacting: a) a metallocene compound of formula (I) wherein M, X, L, T, R1, R7, R2 and R8 are described in the text; and (b) an alumoxane or a compound capable of forming an alkyl metallocene cation.Type: ApplicationFiled: March 8, 2005Publication date: November 13, 2008Applicant: Basell Polyolefine GmbHInventors: Luigi Resconi, Eleonora Ciaccia, Friederike Morhard, Giampaolo Pellegatti
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Patent number: 7449527Abstract: Provided is a process for producing a polyolefin having a multimodal molecular weight distribution, which process comprises: (a) polymerizing a first olefin monomer in the presence of an isomerizable metallocene catalyst, to form a first multi-modal polyolefin component; and (b) polymerizing a second olefin monomer in the presence of a second metallocene catalyst to form a second polyolefin component; wherein the molecular weight distribution of the first polyolefin component overlaps with the molecular weight distribution of the second polyolefin component.Type: GrantFiled: September 24, 2003Date of Patent: November 11, 2008Assignee: Total Petrochemicals Research FeluyInventor: Abbas Razavi
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Publication number: 20080275200Abstract: The invention provides a process for producing an olefin polymerisation catalyst, comprising an organometallic compound of a transition metal or of an actinide or lanthanide, in the form of solid catalyst particles, comprising forming a liquid/liquid emulsion system which comprises a solution of one or more catalyst components dispersed in a solvent immiscible therewith; and solidifying said dispersed phase to convert said droplets to solid particles comprising the catalyst and optionally recovering said particles.Type: ApplicationFiled: March 7, 2008Publication date: November 6, 2008Applicant: Borealis Technology OyInventors: Peter Denifl, Erik Van Praet, Michael Bartke, Marita Oksman, Marja Mustonen, Thomas Garoff, Kari Pesonen
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Control of Polymer Architecture and Molecular Weight Distribution Via Multi-Centered Shuttling Agent
Publication number: 20080275189Abstract: A process for the polymerization of one or more addition polymerizable monomers and the resulting polymer composition, said process comprising contacting an addition polymerizable monomer or mixture of monomers in a reactor or reactor zone with a composition comprising at least one polymerization catalyst and a cocatalyst under polymerization conditions, characterized in that at least a portion of said polymerization is conducted in the presence of a multi-centered shuttling agent thereby causing the composition to have a bimodal molecular weight distribution.Type: ApplicationFiled: September 14, 2006Publication date: November 6, 2008Applicant: Dow Global Technologies Inc.Inventors: Edmund M. Carnahan, Phillip D. Hustad, Brian A. Jazdzewski, Roger L. Kuhlman, Timothy T. Wenzel -
Patent number: 7446073Abstract: The present invention relates to a cyclic germanium bridged bulky ligand metallocene-type catalyst compound, a catalyst system thereof, and to its use in a process for polymerizing olefin(s) to produce enhanced processability polymers.Type: GrantFiled: October 19, 2004Date of Patent: November 4, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Donna J. Crowther, Phillip T. Matsunaga
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Publication number: 20080269419Abstract: Copolymers, especially multi-block copolymer containing therein two or more segments or blocks differing in tacticity, are prepared by polymerizing propylene, 4-methyl-1-pentene, or another C4-8 ?-olefin in the presence of a composition comprising the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in tacticity from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.Type: ApplicationFiled: January 30, 2006Publication date: October 30, 2008Inventor: Phillip D. Hustad
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Publication number: 20080269443Abstract: The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a heteroaryl-amine compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene.Type: ApplicationFiled: June 27, 2008Publication date: October 30, 2008Inventors: David H. McConville, Lily Ackerman, Robert T. Li, Xiaohong Bei, Mathew C. Kuchta, Tom Boussie, John F. Walzer, Gary Diamond, Francis C. Rix, Keith A. Hall, Anne LaPointe, James Longmire, Vince Murphy, Pu Sun, Dawn Verdugo, Susan Schofer, Eric Dias
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Publication number: 20080262175Abstract: Copolymers, especially multi-block copolymer containing therein two or more segments or blocks, are prepared by polymerizing propylene, 4-methyl-1-pentene, or another C4-8 ?-olefin in the presence of a composition comprising the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers having increased incidence of regio-irregular branching compared to the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.Type: ApplicationFiled: January 30, 2006Publication date: October 23, 2008Inventors: Daniel J. Arriola, Edmand M. Carnahan, David D. Devore, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel
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Publication number: 20080255329Abstract: Group 4 metal complexes comprising a polyvalent, heteroaryl donor ligand and their use as components of olefin polymerization catalysts, especially suited for preparing propylene/ethylene copolymer products having high isotacticity and low molecular weight, are disclosed.Type: ApplicationFiled: September 8, 2006Publication date: October 16, 2008Inventors: Harold W. Boone, Kevin A. Frazier, Daniel D. VanderLende, Paul C. Vosejpka
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Patent number: 7432336Abstract: The present invention relates to propylene based copolymers and to processes for producing propylene based copolymers, particularly propylene-ethylene copolymers. These unique copolymers are prepared using metallocene catalysts.Type: GrantFiled: March 18, 2004Date of Patent: October 7, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventor: Patrick Brant
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Publication number: 20080242812Abstract: Cycloolefin copolymers which are distinguished by the presence of racemic diads of repeating polycyclic units and additionally by racemic triads of repeating polycyclic units are described. These copolymers can be prepared by copolymerization of polycyclic olefins with linear olefins in the presence of metallocene catalysts which have no Cs symmetry in relation to the centroid-M-centroid plane. The novel copolymers can be used for the production of shaped articles, in particular of films.Type: ApplicationFiled: March 19, 2008Publication date: October 2, 2008Inventors: Dieter Ruchatz, Anne-Meike Schauwienold, Peter Jorg
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Patent number: 7425601Abstract: The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers with new sequence distributions. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene, and an alkylstyrene, preferably methylstyrene, even more preferably para-methylstyrene, with new sequence distributions. The copolymer may optionally be halogenated.Type: GrantFiled: December 19, 2003Date of Patent: September 16, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: David Yen-Lung Chung, Timothy Daniel Shaffer
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Publication number: 20080221275Abstract: Provided are selected types of terpolymer components comprising terpolymers having monomer units derived from ethylene (E), dicyclopentadiene (DCPD) and norbornene-based (NB) co-monomers. Such terpolymer components have certain specified amounts of each co-monomer as well as certain specified molecular weight and glass transition temperature characteristics. Terpolymer components which are derivatized by hydrogenation and/or by epoxidation and/or hydroxylation are also disclosed, as well as thermoplastic polyolefin compositions which contain the terpolymer components and which have especially desirable structural and thermal properties. Also provided are processes for preparing and derivatizing the terpolymer components herein.Type: ApplicationFiled: February 29, 2008Publication date: September 11, 2008Inventors: Lisa S. Baugh, Enock Berluche, Abhimanyu O. Patil, Beverly J. Poole, Kevin D. Robinson, Kevin R. Squire
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Publication number: 20080207853Abstract: Compounds are provided that are useful as precatlysts in the polymerization of olefins such as ethylene and propylene. Other compounds are useful as intermediates in the production of such precatalysts.Type: ApplicationFiled: February 23, 2007Publication date: August 28, 2008Inventors: Omofolami Tesileem Ladipo, Richard Eaves, Alexey Zazybin, Sean Parkin
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Patent number: 7417103Abstract: The present invention provides 3,4-isoprene-based polymer with high regioregularity, in particular high tacticity. Specifically, the present invention provides an isoprene-based polymer, including a structural unit represented by Formula (I) in Claims, wherein the isotacticity of an arrangement of the structural units is 99% mmmm or more in terms of pentad content. Further, the present invention provides a production method for the isoprene-based polymer, which comprises polymerizing an isoprene-based compound in the presence of a polymerization catalyst containing a complex represented by the following Formula (A) in Claims.Type: GrantFiled: March 4, 2005Date of Patent: August 26, 2008Assignee: RikenInventors: Zhaomin Hou, Lixin Zhang
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Publication number: 20080200625Abstract: A polymerisation catalyst comprising (1) a transition metal compound of Formula (A), and optionally (2) an activator, wherein Z is 5-membered heterocyclic containing carbon, nitrogen and at least one other selected from nitrogen, sulphur and oxygen, the remaining atoms in the ring being nitrogen and carbon; M is a metal from Group 3 to 11 or a lanthanide metal; E1 and E2 are divalent hydrocarbon, heterocyclic or heterosubstituted derivatives of these; D1 and D2 are donor atoms or groups; X is an anionic group, L is a neutral donor group; n=m=zero or 1; y and z are zero or integers so that X and L satisfy the valency/oxidation state of M, characterized in that the complex contains at least one polymerisable olefinic double bond which is present in, or substituent to, at least one of the atoms, groups or ligands represented by Z, E, D and L. The catalyst binds to the forming polymer providing product with good particle morphology.Type: ApplicationFiled: June 23, 2005Publication date: August 21, 2008Inventors: Vernon Charles Gibson, Atanas Kostadinov Tornov, Grant Berent Jacobsen
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Publication number: 20080194780Abstract: The present invention relates to catalyst systems for polyolefin production, and more particularly, to catalyst systems for polyolefins used in producing films.Type: ApplicationFiled: February 21, 2006Publication date: August 14, 2008Applicant: UNIVATION TECHNOLOGIES, LLCInventors: Chi-I Kuo, Steven K. Ackerman
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Publication number: 20080182951Abstract: The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a chromium based catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a pyridyl bis(oxazoline) or pyridyl bis(thiazoline) ligand. In particular embodiments, the catalyst composition can be used to dimerize ethylene to butenes.Type: ApplicationFiled: December 13, 2007Publication date: July 31, 2008Inventors: Lily J. Ackerman, Gary Michael Diamond, Keith Anthony Hall, James M. Longmire, Mark L. Micklatcher
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Publication number: 20080182952Abstract: 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: ApplicationFiled: December 21, 2007Publication date: July 31, 2008Inventors: Garth R. Giesbrecht, Gregory A. Solan, Christopher J. Davies
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Patent number: 7405261Abstract: The present invention relates to compounds of the formula (I): where M1 is an element of group 3, 4, 5 or 6 of the Periodic Table, X are halogen, hydrogen, C1-C20-alkyl, C2-C20-alkenyl, C6-C22-aryl, alkylaryl or arylalkyl, n is a natural number from 1 to 4. R1 is hydrogen or a C1-C40 radical, R2 is a substituted or unsubstituted C6-C40-aryl radical or C2-C40-heteroaromatic radical containing at least one heteroatom, R3 is hydrogen or a C1-C40 radical, or the radicals R2 and R3 together form a ring system, R4 is hydrogen or a C1-C40 radical, R5 is a C1-C40 radical, and Z is a divalent group CR8R9—CR10R11, where R8, R9, R10 and R11 are hydrogen or a C1-C40 radical.Type: GrantFiled: December 2, 2003Date of Patent: July 29, 2008Assignee: Basell Polyolefine GmbHInventors: Jörg Schulte, Jörg Schottek, Yoshikuni Okumura
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Publication number: 20080167434Abstract: The present invention provides for a method for preparing a storable fluidic olefin polymerisation catalyst composition, said catalyst comprising an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC), or of an actinide or lanthanide, and the use of such composition for polymerising ?-olefins.Type: ApplicationFiled: June 7, 2004Publication date: July 10, 2008Inventors: Petri Rekonen, Pauli Leskinen
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Publication number: 20080161517Abstract: A transition metal ligand complex has the following formula: wherein R1 and R2 (each occurrence) independently represent an aryl, alkyl, or cycloalkyl group having up to 20 carbon atoms; R3 and R4 (each occurrence) independently represent an aryl, alkyl, or cycloalkyl group having up to 20 carbon atoms; R5 represents an aryl, alkyl, or cycloalkyl group having up to 20 carbon atoms, provided that R4 and R5 may be joined to form a cyclic structure; R6 represents an alkyl or aryl group having up to 20 carbon atoms; and Mt represents a transition metal selected from Group 7, 8, 9, 10, 11, or 12 of the Periodic Table of the Elements.Type: ApplicationFiled: February 4, 2008Publication date: July 3, 2008Inventors: Lisa S. Baugh, Enock Berluche, Paul V. Hinkle, Francis C. Rix
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Publication number: 20080139763Abstract: Supported catalyst systems for the polymerisation of olefins, comprise (a) at least two different monocyclopentadienyl transition metal compounds, (b) one or more activators comprising an ionic compound comprising (i) a cation and (ii) an anion having up to 100 non-hydrogen atoms and the anion containing at least one substituent comprising a moiety having an active hydrogen, and (c) one or more support materials. The, supported “mixed or dual site” catalyst systems comprising different monocyclopentadienyl catalysts when activated by specific ionic activators lead to catalyst systems showing an improved balance of properties which may be used to prepare LLDPE polymers having broad melt flow ratios.Type: ApplicationFiled: November 10, 2005Publication date: June 12, 2008Inventors: Grant Berent Jacobsen, Dusan Jeremic, Sergio Mastroianni, Ian Douglas McKay
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Publication number: 20080108765Abstract: The present invention discloses an active metallocene catalyst system prepared with a hafnium-based metallocene catalyst system and an activating agent comprising an aluminoxane and a sterically hindered Lewis base.Type: ApplicationFiled: October 20, 2005Publication date: May 8, 2008Inventors: Vincenzo Busico, Roberta Cipullo, Roberta Pellecchia, Abbas Razavi
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Publication number: 20080097052Abstract: A syndiotactic polypropylene comprising a melting temperature of greater than 160° C., a percentage of syndiotactic pentads greater than 95%, a toluene soluble fraction of equal to or less than 0.4, and a molecular weight of from 10,000 Daltons to 1,000,000 Daltons. A syndiotactic polypropylene comprising a melting temperature of greater than 170° C., a molecular weight of from 100,000 Daltons to 300,000 Daltons, a molecular weight distribution of less than 3, and a toluene soluble fraction of less than 0.4. A syndiotactic polypropylene comprising a tensile modulus of equal to or greater than 60,000 psi, a tensile strength at yield of equal to or greater than 3,600 psi, a tensile strength at break of equal to or greater than 3,900 psi, an elongation at yield of equal to or greater than 13%, and an elongation at break of equal to or greater than 400%.Type: ApplicationFiled: October 23, 2006Publication date: April 24, 2008Inventors: Vladimir Marin, Abbas Razavi
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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: 7341971Abstract: The invention provides a process for producing an olefin polymerization catalyst, comprising an organometallic compound of a transition metal or of an actinide or lanthanide, in the form of solid catalyst particles, comprising forming a liquid/liquid emulsion system which comprises a solution of one or more catalyst components dispersed in a solvent immiscible therewith; and solidifying said dispersed phase to convert said droplets to solid particles comprising the catalyst and optionally recovering said particles.Type: GrantFiled: December 18, 2002Date of Patent: March 11, 2008Assignee: Borealis Technology OYInventors: Peter Denifl, Erik Van Praet, Michael Bartke, Marita Oksman, Marja Mustonen, Thomas Garoff, Kari Pesonen
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Patent number: 7342078Abstract: A process for the polymerization of olefins, in particular a process for the copolymerization of propylene with further olefins, is carried out in the presence of highly active catalyst systems comprising specifically selected metallocenes, in particular ones which bear different substituents in position 2 and position 4 on an indenyl ligand. Novel polypropylene copolymers can be obtained by this process.Type: GrantFiled: December 13, 2000Date of Patent: March 11, 2008Assignee: Basell Polyolefine GmbHInventors: Jörg Schottek, Markus Oberhoff, Carsten Bingel, David Fischer, Horst Weiβ, Andreas Winter, Volker Fraaije, Ralph-Dieter Maier, Wolfgang Bidell, Nicola Paczkowski, Jürgen Suhm, Roland Kratzer
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Publication number: 20080027195Abstract: The invention relates to a process for the preparation of a metal-organic compound, comprising at least one phosphinimine ligand, characterized in that the HA adduct of a phosphinimine ligand according to formula (1) is contacted with a metal-organic reagent of formula (2) in the presence of 1, respectively 2 equivalents of a base, wherein HA represents an acid, of which H represents its proton and A its conjugate base, with Y=N?H as formula (1), and Mv(L1)k(L2)l(L3)m(L4)nX as formula (2), and wherein Y is a substituted phosphorous atom, and M represents a group 4 or group 5 metal ion, V represents the valency of the metal ion, being 3, 4 or 5 L1, L2, L3, and L4 represent a ligand or a group 17 halogen atom on M and may be equal or different, k, l, m, n=0, 1, 2, 3, 4 with k+l+m+n+1=V, and X represents a group 17 halogen atom.Type: ApplicationFiled: August 3, 2004Publication date: January 31, 2008Inventors: Edwin Ijpeij, Henricus Arts, Gerardus Van Doremaele, Felix Beijer, Francis Van der Burgt, Martin Alexander Zuideveld
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Publication number: 20080027189Abstract: An olefin polymerization process comprising contacting one or more olefins and a catalyst component in a reaction zone under suitable reaction conditions to form a polyolefin, wherein the catalyst component is characterized by the formula: B(Cp)(Fl)MQ2 wherein M comprises a metal, Q comprises a halogen, an alkyl group or an aryl group or combinations thereof, Cp comprises a cyclopentadienyl group, Fl comprises a fluorenyl group, B is a bridging group that may be characterized by the general formula —YRH wherein Y comprises C or Si and R comprises an alkyl group, an aryl group, a poly-aryl group or combinations thereof.Type: ApplicationFiled: July 25, 2006Publication date: January 31, 2008Inventors: Vladimir Marin, Abbas Razavi
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Patent number: 7323526Abstract: A supported catalyst composition having improved flow properties is disclosed comprising an alkylalumoxane, a metallocene-alkyl an inorganic oxide support having an average particle size of from 0.1 to 50 ?m and calcined at a temperature greater than 600° C., and optionally an antifoulant agent and. In one embodiment, the metallocene-alkyl is a Group 4, 5 or 6 metallocene-alkyl, and in another embodiment is a hafnocene-alkyl. Also disclosed is a method of polymerization using such a supported catalyst composition.Type: GrantFiled: July 29, 2005Date of Patent: January 29, 2008Assignee: Univation Technologies, LLCInventors: Agapios K. Agapiou, Phuong Anh Cao, Sun-Chueh Kao
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Patent number: 7319125Abstract: This invention relates to a process to produce propylene polymers comprising contacting a metallocene catalyst compound and an activator in a reaction medium comprising propylene, from 0 to 30 volume % of one or more solvents and from 0 to 30 mole % of one or more comonomers, under temperature and pressure conditions below the melting point of the propylene polymer and where: a) the temperature is at or above the critical temperature for the reaction medium, and the pressure is at least 500 kPa above the critical pressure of the reaction medium; or b) the temperature is 1° C. or more above the critical temperature for the reaction medium, and the pressure is at or above the critical pressure of the reaction medium; or c) the temperature is 1° C. or more above the critical temperature for the reaction medium, and the pressure is at least 500 kPa above the critical pressure of the reaction medium.Type: GrantFiled: September 22, 2003Date of Patent: January 15, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Palanisamy Arjunan, Simon X. Zhang, Charles Cozewith
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Patent number: 7312283Abstract: Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. Methods for preparing and using such catalysts to produce polyolefins are also provided. The compositions and methods disclosed herein provide ethylene polymers having a HLMI of from about 0.5 to about 25, a polymer density of from about 0.920 to about 0.965, and a polydispersity of from about 3.0 to about 30.Type: GrantFiled: August 22, 2005Date of Patent: December 25, 2007Assignee: Chevron Phillips Chemical Company LPInventors: Joel L. Martin, Matthew G. Thorn, Max P. McDaniel, Michael D. Jensen, Qing Yang, Paul J. DesLauriers, Mark E. Kertok
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Patent number: 7309747Abstract: A 1-butene polymer satisfying the following (1), (2) and either (3) or (3?): a process for producing the polymer; a resin modifier comprising the polymer; and a hot-melt adhesive containing the polymer. (1) The intrinsic viscosity [?] as measured in tetralin solvent at 135° C. is 0.01 to 0.5 dL/g. (2) The polymer is a crystalline resin having a melting point (Tm-D) of 0 to 100° C., the melting point being defined as the top of the peak observed on the highest-temperature side in a melting endothermic curve obtained with a differential scanning calorimeter (DSC) in a test in which a sample is held in a nitrogen atmosphere at ?10° C. for 5 min and then heated at a rate of 10° C./min. (3) The stereoregularity index {(mmmm)/(mmrr+rmmr)} is 30 or lower. (3?) The mesopentad content (mmmm) determined from a nuclear magnetic resonance (NMR) spectrum is 68 to 73%.Type: GrantFiled: February 19, 2003Date of Patent: December 18, 2007Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yutaka Minami, Masami Kanamaru, Toyozo Fujioka, Tomoaki Takebe, Masao Inoue
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Patent number: 7307130Abstract: The present invention relates to a catalyst composition and a method for making the catalyst composition of a polymerization catalyst and a static charge modifier. The invention is also directed to the use of the catalyst composition in the polymerization of olefin(s). In particular, the polymerization catalyst system is supported on a carrier. More particularly, the polymerization catalyst comprises a bulky ligand metallocene-type catalyst system.Type: GrantFiled: March 16, 2005Date of Patent: December 11, 2007Assignee: Univation Technologies, LLCInventors: Brant Patrick, Michael Elroy Muhle, Matt Kuchta
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Publication number: 20070282085Abstract: The use of high activity “Single Site” polymerization catalysts often causes the fouling of polymerization reactors. The problem is particularly acute with gas phase polymerizations. While not wishing to be bound by theory it is believed that the fouling is initiated by the buildup of static charges in the reactor. The use of anti-static agents mitigates this problem, but typical antistatic agents contain polar species, which can deactivate the polymerization catalyst. We have now discovered that the use of a porous metal oxide support allows large levels of a selected antistatic agent to be used in a manner that reduces static/fouling problems in highly active polymerization catalysts.Type: ApplicationFiled: May 7, 2007Publication date: December 6, 2007Inventors: Ian McKay, Dusan Jeremic, Paul Mesquita, Grant Berent Jacobsen, Sergio Mastroianni
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Patent number: 7300988Abstract: A method of polymerizing olefins comprising combining in one embodiment ethylene and optionally one or more ?-olefins with a catalyst composition in a continuous polymerization reactor at a pressure of less than 10,000 kPa; wherein the catalyst composition comprises a hafnocene; and isolating a polyethylene having a density in the range of from 0.930 to 0.975 g/cm3. Also provided is a method of transitioning a continuous polymerization reactor from production of a low density polyethylene to a medium or high density polyethylene. Also provided is a medium to high density polyethylene suitable for injection or rotomolding applications. Also provided is a single catalyst composition suitable for such needs.Type: GrantFiled: April 11, 2007Date of Patent: November 27, 2007Assignee: Univation Technologies, LLCInventors: Rainer Kolb, John F. Szul
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Patent number: 7285608Abstract: A catalyst system includes a metallocene compound having the formula R9 L1 L2 M1 R1 R2 wherein R9 is a bridge between ligands L1 and L2 and M1 is a metal of Group IVB of the Periodic Table such as titanium, zirconium and hafnium and R1 and R2 can be hydrogen or aliphatic or aromatic groups. Bridge R9 can include silicon, germanium or tin. The metallocene compound of the invention as synthesized has a racemic to meso isomer ratio of greater than 5 to 1, thereby precluding the need for subsequent separation of the meso isomer.Type: GrantFiled: April 21, 2004Date of Patent: October 23, 2007Assignee: Novolen Technology Holdings C.V.Inventors: Joerg Schottek, Nicola Stefanie Paczkowski, Andreas Winter, Thorsten Sell
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Patent number: 7279536Abstract: Process to polymerize olefins comprising contacting, in a polymerization system, olefins having three or more carbon atoms with a catalyst compound, activator, optionally comonomer, and optionally diluent or solvent, at a temperature above the cloud point temperature of the polymerization system and a pressure no lower than 10 MPa below the cloud point pressure of the polymerization system, where the polymerization system comprises any comonomer present, any diluent or solvent present, the polymer product, where the olefins having three or more carbon atoms are present at 40 weigh % or more.Type: GrantFiled: August 25, 2006Date of Patent: October 9, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Patrick Brant, Francis Charles Rix, Gabor Kiss, Robert P. Reynolds