Elemental Oxygen Or Nonmetallic Inorganic Oxygen-containing Material, Other Than Water Patents (Class 502/120)
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Patent number: 8324126Abstract: The present invention relates a process for the preparation of catalytic support and the supported metallocene catalysts used in the production of ethylene homopolymers and ethylene copolymers with ?-olefins, of high and ultra high molecular weight with broad molecular weight distribution, in gas or liquid phase polymerization processes, the latter being in slurry, bulk or suspension, and the products obtained from these processes.Type: GrantFiled: June 27, 2008Date of Patent: December 4, 2012Assignee: Braskem S.A.Inventors: Marcia Silva Lacerda Miranda, Fernanda Oliveira Vieira da Cunha
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Patent number: 8314199Abstract: The present invention discloses a homo- or co-polymer of ethylene characterised in that it combines the properties of: a) melt strength MS?0.021 p-0.131 wherein melt strength MS is expressed in N and extruder head pressure p is expressed in MPa, when processed in a rheological extruder through a die with L/D of 30:2 at a rate of 500 s?1 and at temperature of 190° C.; b) long chain branching index g? determined by SEC-VISCO larger than 0.90; c) polydispersity index (Mw/Mn) of at most 7. It also discloses a method to prepare said polyethylene resin.Type: GrantFiled: March 4, 2008Date of Patent: November 20, 2012Assignee: Total Petrochemicals Research FeluyInventors: Jacques Michel, Marc Dupire, Prades Floran
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Patent number: 8304361Abstract: Fouling in a dispersed phase reactor in the presence of a phosphinimine catalyst and MAO may be reduced by reducing the loading of the phosphinimine catalyst to provide from 0.02 to 0.031 mmol of transition M per g of catalyst while still maintaining a productivity of not less than 2500 g of polymer/gram of catalyst. The catalyst may optionally be used in the presence of an antistatic agent.Type: GrantFiled: May 16, 2011Date of Patent: November 6, 2012Assignee: NOVA Chemical (International) S.A.Inventors: Xiaoliang Gao, Benjamin Milton Shaw, Cliff Robert Baar
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Patent number: 8298978Abstract: Single site reactor/catalyst continuity in a dispersed phase reaction in terms of initial activation and subsequent deactivation may be improved by treating the support with a metal salt. The activator and catalyst are then deposited on the treated support. The resulting catalyst has a lower consumption of ethylene during initiation and a lower rate of deactivation. Preferably the catalyst is used with an antistatic agent.Type: GrantFiled: October 14, 2010Date of Patent: October 30, 2012Assignee: Nova Chemicals (International) S.A.Inventors: Xiaoliang Gao, Billy Gaspar Santos, Peter Phung Minh Hoang, Amy Marie Jones, Benjamin Milton Shaw, Ian Ronald Jobe
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Patent number: 8298977Abstract: The present invention discloses a catalyst system consisting of a mono- or di-fluorinated metallocene catalyst component of formula and a fluorinated activating support.Type: GrantFiled: April 17, 2007Date of Patent: October 30, 2012Assignee: Total Petrochemicals Research FeluyInventor: Floran Prades
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Patent number: 8288487Abstract: The present invention provides a polymerization process utilizing a dual metallocene catalyst system for the production of broad or bimodal molecular weight distribution polymers, generally, in the absence of added hydrogen. Polymers produced from the polymerization process are also provided, and these polymers can have a Mn in a range from about 9,000 to about 30,000 g/mol, and a short chain branch content that decreases as molecular weight increases.Type: GrantFiled: July 6, 2010Date of Patent: October 16, 2012Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Max P. McDaniel, Tony R. Crain, Youlu Yu
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Patent number: 8273677Abstract: A production process of a pre-polymerized catalyst component, comprising steps of (i) contacting a transition metal compound defined by formula [1], an activation agent, an organometallic compound defined by formula [2], and an optional organoaluminum compound with one another, thereby forming a primary polymerization catalyst, and (ii) pre-polymerizing an olefin in the presence of the primary polymerization catalyst; and a process for producing an addition polymer, comprising a step of polymerizing an addition polymerizable monomer in the presence of a pre-polymerized catalyst component produced by the above production process, or in the presence of the pre-polymerized catalyst component and an organoaluminum compound.Type: GrantFiled: March 24, 2011Date of Patent: September 25, 2012Assignee: Sumitomo Chemical Company, LimitedInventor: Takuya Ogane
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Publication number: 20120238712Abstract: The present invention provides dual catalyst systems containing a metallocene catalyst and a hydrogen scavenging catalyst, and polymerization processes employing these dual catalyst systems. Due to a reduction in hydrogen levels in the polymerization processes, olefin polymers produced from these polymerization processes may have a higher molecular weight, a lower melt index, and higher levels of unsaturation.Type: ApplicationFiled: June 5, 2012Publication date: September 20, 2012Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: Rex E. MURRAY, William B. BEAULIEU, Qing YANG, Errun DING, Gary L. GLASS, Alan L. SOLENBERGER, Steve J. SECORA
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Patent number: 8268944Abstract: This invention relates to catalyst compositions, methods, and polymers encompassing at least one first Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, in combination with at least one second Group 4 metallocene with non-bridging ?5-cyclopentadienyl-type ligands, typically in combination with at least one cocatalyst, and at least one activator. The compositions and methods disclosed herein provide ethylene polymers with a bimodal molecular weight distribution.Type: GrantFiled: February 15, 2012Date of Patent: September 18, 2012Assignee: Chevron Phillips Company, L.P.Inventors: Qing Yang, Kumudini C. Jayaratne, Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Matthew G. Thorn, Jerry T. Lanier, Tony R. Crain
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Publication number: 20120232235Abstract: The present invention discloses catalyst compositions employing transition metal complexes with a thiolate ligand. Methods for making these transition metal complexes and for using such compounds in catalyst compositions for the polymerization of olefins also are provided.Type: ApplicationFiled: March 8, 2011Publication date: September 13, 2012Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventor: Mark L. Hlavinka
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Patent number: 8258247Abstract: The object is to provide a catalyst component for ethylene polymerization which can produce an ethylene polymer of high molecular weight which has substantially only an ethyl branch, and a process for producing the catalyst component for ethylene polymerization which can produce an ethylene polymer of high molecular weight which has substantially only an ethyl branch. A catalyst component for polymerization of ethylene obtained by contacting the following components (A), (B), (C) and (D): component (A): a meso-metallocene compound, component (B): a compound which ionizes a metallocene compound to form an ionic complex, component (C): an organoaluminum compound, and component (D): an electron donating compound, and a process for producing the ethylene polymer by polymerizing ethylene in the presence of the above catalyst component for ethylene polymerization.Type: GrantFiled: February 17, 2009Date of Patent: September 4, 2012Assignee: Sumitomo Chemical Company, LimitedInventor: Yasutoyo Kawashima
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Patent number: 8242221Abstract: The present invention provides polymerization catalyst compositions employing half-metallocene compounds with a heteroatom-containing ligand bound to the transition metal. Methods for making these hybrid metallocene compounds and for using such compounds in catalyst compositions for the polymerization and copolymerization of olefins are also provided.Type: GrantFiled: January 5, 2012Date of Patent: August 14, 2012Assignee: Chevron Phillips Chemical Company LPInventors: Max P. McDaniel, Matthew G. Thorn, Elizabeth A. Benham
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Patent number: 8207280Abstract: The present invention provides dual catalyst systems containing a metallocene catalyst and a hydrogen scavenging catalyst, and polymerization processes employing these dual catalyst systems. Due to a reduction in hydrogen levels in the polymerization processes, olefin polymers produced from these polymerization processes may have a higher molecular weight, a lower melt index, and higher levels of unsaturation.Type: GrantFiled: June 28, 2010Date of Patent: June 26, 2012Assignee: Chevron Phillips Chemical Company LPInventors: Rex E. Murray, William B. Beaulieu, Qing Yang, Errun Ding, Gary L. Glass, Alan L. Solenberger, Steven J. Secora
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Publication number: 20120095172Abstract: Ziegler-Natta catalyst composition capable of producing ethylene/alpha-olefins copolymers, particularly linear low density polyethylene; the composition having an improved stability of its behaviour during polymerization in respect to time. The Ziegler-Natta catalyst composition comprises: 1.Type: ApplicationFiled: April 26, 2010Publication date: April 19, 2012Inventors: Thomas Garoff, Paivi Waldvogel, Kalle Kallio, Virginie Eriksson
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Patent number: 8153545Abstract: Metal complexes, catalyst compositions containing the metal complexes, and processes for making the metal complexes and the catalyst compositions are described for the manufacture of polymers from ethylenically unsaturated addition polymerizable monomers. The metal complexes have chemical structures corresponding to one of the following formulae: wherein MI and MII are metals; T is nitrogen or phosphorus; P is a carbon, nitrogen or phosphorus atom; groups R1, R2 and R3 may be linked to each other; Y is a divalent bridging group; X, X1, and X2 are anionic ligand groups with certain exceptions; D is a neutral Lewis base ligand; and s, o, k, i, ii, p, m, a, b, c, d, c, t, and y are numbers as further described in the claims.Type: GrantFiled: February 25, 2011Date of Patent: April 10, 2012Assignee: Styron Europe GmbHInventor: Sven K. H. Thiele
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Patent number: 8138285Abstract: Methods of forming supported catalyst systems, supported catalyst systems and polymerization processes utilizing the supported catalyst systems are described herein. The methods generally include providing an inorganic support material and contacting the inorganic support material with a support solvent to form a support solution. The methods further include contacting the support solution with a fluorine containing compound represented by the formula AlFpX3-pBq to impregnate the fluorine containing compound within the inorganic support material and form an intermediate, wherein X is selected from Cl, Br and OH?, B is H2O, p is selected from 1 to 3 and q is selected from 0 to 6. In addition, the methods include drying the intermediate to remove the solvent therefrom and heating the intermediate at a temperature of at least about 300° C.Type: GrantFiled: April 14, 2008Date of Patent: March 20, 2012Assignee: Fina Technology, Inc.Inventor: Vladimir Marin
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Patent number: 8138113Abstract: This invention relates to catalyst compositions, methods, and polymers encompassing at least one first Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, in combination with at least one second Group 4 metallocene with non-bridging ?5-cyclopentadienyl-type ligands, typically in combination with at least one cocatalyst, and at least one activator. The compositions and methods disclosed herein provide ethylene polymers with a bimodal molecular weight distribution.Type: GrantFiled: April 26, 2011Date of Patent: March 20, 2012Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Kumudini C. Jayaratne, Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Matthew G. Thorn, Jerry T. Lanier, Tony R. Crain
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Patent number: 8110640Abstract: The present invention provides polymerization catalyst compositions employing half-metallocene compounds with a heteroatom-containing ligand bound to the transition metal. Methods for making these hybrid metallocene compounds and for using such compounds in catalyst compositions for the polymerization and copolymerization of olefins are also provided.Type: GrantFiled: November 18, 2010Date of Patent: February 7, 2012Assignee: Chevron Phillips Chemical Company LPInventors: Max P. McDaniel, Matthew G. Thorn, Elizabeth A. Benham
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Patent number: 8110518Abstract: Supported catalyst systems and methods of forming the same are described herein. In one specific embodiment, the methods generally include providing an inorganic support material and contacting the inorganic support material with an aluminum fluoride compound represented by the formula AlFpX3-pBq to form an aluminum fluoride impregnated support, wherein X is selected from Cl, Br and OH?, B is H2O, p is selected from 1 to 3 and q is selected from 0 to 6. The method further includes contacting the aluminum fluoride impregnated support with a transition metal compound to form a supported catalyst system, wherein the transition metal compound is represented by the formula [L]mM[A]n; wherein L is a bulky ligand, A is a leaving group, M is a transition metal and m and n are such that a total ligand valency corresponds to the transition metal valency.Type: GrantFiled: October 26, 2007Date of Patent: February 7, 2012Assignee: Fina Technology, Inc.Inventors: Vladimir Marin, Margarito Lopez, Abbas Razavi, Tim Coffy, Michel Daumerie
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Publication number: 20110319575Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition comprising the contact product of a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. The new resins were characterized by useful properties in impact, tear, adhesion, sealing, extruder motor loads and pressures at comparable melt index values, and neck-in and draw-down.Type: ApplicationFiled: September 8, 2011Publication date: December 29, 2011Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Elizabeth A. Benham, Randy L. Muninger, Gary Jerdee, Ashish M. Sukhadia, Qing Yáng, Matthew G. Thorn
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Patent number: 8076259Abstract: A process for the preparation of a catalyst paste comprising the following steps: a) obtaining a slurry in an organic solvent containing at least: a1) a support bearing functional groups; a2) a trialkylaluminum of formula (Ra)3Al wherein Ra, equal to or different from each other is a C1-C20 hydrocarbon radical optional containing heteroatoms belonging to groups 13-17 of the periodic table of the elements; a3) a compound of formula (I) (R1)x-A-(OH)y??(I) wherein: A is an atom of group 13 or 15 of the Periodic Table; R1 equal to or different from each other, are C1-C40 hydrocarbon radicals optionally containing heteroatoms belonging to groups 13-17 of the periodic table of the elements; Y is 1 or 2; X is 1 or 2; provided that x+y=3; a4) a transition metal organometallic compound; b) washing the resulting slurry one or more times with oil.Type: GrantFiled: October 1, 2008Date of Patent: December 13, 2011Assignee: Basell Polyolefine GmbHInventors: Bodo Richter, Gregorius Heike
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Publication number: 20110166305Abstract: A Ziegler-Natta procatalyst composition in the form of solid particles and comprising magnesium, halide and transition metal moieties, said particles having an average size (D50) of from 10 to 70 ?m, characterized in that at least 5 percent of the particles have internal void volume substantially or fully enclosed by a monolithic surface layer (shell), said layer being characterized by an average shell thickness/particle size ratio (Thickness Ratio) determined by SEM techniques for particles having particle size greater than 30 ?m of greater than 0.2.Type: ApplicationFiled: August 9, 2005Publication date: July 7, 2011Inventors: Robert J. Jorgensen, Thomas E. Spriggs, Michael D. Turner, Burkhard E. Wagner, Daniel J. Lacks
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Patent number: 7960487Abstract: This invention relates to catalyst compositions, methods, and polymers encompassing at least one first Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, in combination with at least one second Group 4 metallocene with non-bridging ?5-cyclopentadienyl-type ligands, typically in combination with at least one cocatalyst, and at least one activator. The compositions and methods disclosed herein provide ethylene polymers with a bimodal molecular weight distribution.Type: GrantFiled: October 1, 2009Date of Patent: June 14, 2011Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Kumudini C. Jayaratne, Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Matthew G. Thorn, Jerry T. Lanier, Tony R. Crain
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Publication number: 20110130271Abstract: Methods of preparing a polymerization catalyst component is provided, in which a magnesium component, a Lewis acid solubilizing component, a titanium compound, optionally a transition metal compound different than the titanium compound, and typically an inert filler are combined in a slurrying agent and spray-dried to produce a catalyst precursor in the form of a substantially spherical and porous solid particle. The methods and catalysts of this disclosure can provide ethylene homopolymer and copolymer resins having a high molecular weight tail and a broadened molecular weight distribution as compared to more traditional Ziegler-Natta catalysts.Type: ApplicationFiled: August 6, 2009Publication date: June 2, 2011Applicant: Union Carbide Chemicals & Plastics Technology LLCInventors: Burkhard E. Wagner, Robert C. Job, Ann M. Schoeb-Wolters, Robert J. Jorgensen
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Patent number: 7928172Abstract: Compositions useful for activating catalysts for olefin polymerization are-provided. The compositions are derived from at least: a) compound derived from at least (i) carrier having at least one pair of hydrogen bonded hydroxyl groups, (ii) organoaluminum compound, and (iii) Lewis base, such that each of a majority of aluminum atoms in the organoaluminum compound forms chemical bonds with at least two oxygen atoms from the at least one pair of hydrogen bonded hydroxyl groups; and b) Bronsted acid, wherein the molar ratio of the Bronsted acid to the organoaluminum compound is less than or equal to about 2:1.Type: GrantFiled: December 4, 2007Date of Patent: April 19, 2011Assignee: Albemarle CorporationInventors: Lubin Luo, Katherine Wu, Steven P. Diefenbach
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Publication number: 20110082325Abstract: The invention provides transition metal complex compounds, high-activity olefin oligomerization catalysts containing the compounds, and olefin oligomerization processes using the catalysts. A transition metal complex compound [A] according to the invention is represented by Formula (I) or Formula (I?) below. An olefin oligomerization catalyst includes the transition metal complex compound [A]. In an olefin oligomerization process of the invention, an olefin is oligomerized in the presence of the catalyst.Type: ApplicationFiled: June 27, 2008Publication date: April 7, 2011Inventors: Yasuhiko Suzuki, Shinsuke Kinoshita, Atsushi Shibahara, Naritoshi Yoshimura, Isao Hara, Tetsuya Hamada, Kazumori Kawamura, Kou Tsurugi, Yasunori Saito, Seiichi Ishii, Yasushi Nakayama, Naoto Matsukawa, Susumu Murata
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Patent number: 7915194Abstract: Metal complexes, catalyst compositions containing the metal complexes, and processes for making the metal complexes and the catalyst compositions are described for the manufacture of polymers from ethylenically unsaturated addition polymerizable monomers. The metal complexes have chemical structures corresponding to one of the following formulae: wherein MI and MII are metals; T is nitrogen or phosphorus; P is a carbon, nitrogen or phosphorus atom; groups R1, R2 and R3 may be linked to each other; Y is a divalent bridging group; X, X1, and X2 are anionic ligand groups with certain exceptions; D is a neutral Lewis base ligand; and s, o, k, i, ii, p, m, a, b, c, d, e, t, and y are numbers as further described in the claims.Type: GrantFiled: September 10, 2009Date of Patent: March 29, 2011Assignee: Styron Europe GmbHInventor: Sven K. H. Thiele
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Patent number: 7915360Abstract: The present invention provides a new supported catalyst for olefin polymerization prepared by reacting a novel transition metal compound on a cocatalyst-supported support, in which the transition metal compound is coordinated with a monocyclopentadienyl ligand to which an amido-quinoline group is introduced, a method for preparing the same, and a method for preparing a polyolefin using the same. The transition metal catalyst compound used in the present invention is configured such that an amido group is linked in a cyclic form via a phenylene bridge. Thus, a pentagon ring structure of the transition metal compound is stably maintained, so that monomers easily approach the transition metal compound and the reactivity is also high.Type: GrantFiled: November 15, 2007Date of Patent: March 29, 2011Assignee: LG Chem, Ltd.Inventors: Dae-Sik Hong, Ki-Soo Lee, Yong-Gyu Han, Heon-Yong Kwon, Jong-Sang Park, Joon-Hee Cho, Seon-Kyoung Kim, Choong-Hoon Lee, Eun-Jung Lee, Seung-Whan Jung, Ki-Su Ro
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Patent number: 7897539Abstract: A method of preparing a composition comprising dry mixing commercial grade alumina and a solid sulfating agent to form a mixture and calcining the mixture to form a sulfated alumina support.Type: GrantFiled: May 16, 2007Date of Patent: March 1, 2011Assignee: Chevron Phillips Chemical Company LPInventors: Max P. McDaniel, Elizabeth A. Benham, Randall S. Muninger
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Patent number: 7884165Abstract: The present invention provides polymerization catalyst compositions employing half-metallocene compounds with a heteroatom-containing ligand bound to the transition metal. Methods for making these hybrid metallocene compounds and for using such compounds in catalyst compositions for the polymerization and copolymerization of olefins are also provided.Type: GrantFiled: July 14, 2008Date of Patent: February 8, 2011Assignee: Chevron Phillips Chemical Company LPInventors: Max P. McDaniel, Matthew G. Thorn, Elizabeth A. Benham
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Patent number: 7875568Abstract: The present invention provides a method for supporting a nonmetallocene olefin polymerization catalyst, comprising the following steps: a carrier reacts with a chemical activator to obtain a modified carrier; a magnesium compound is dissolved in a tetrahydrofuran-alcohol mixed solvent to form a solution, then the modified carrier is added to the solution to perform a reaction, then filtered and washed, dried and suction dried to prepare a composite carrier; a nonmetallocene olefin polymerization catalyst is dissolved in a solvent, and then reacts with said composite carrier, then is washed and filtered, dried and suction dried, to prepare a supported nonmetallocene olefin polymerization catalyst. The present invention further relates to a supported nonmetallocene olefin polymerization catalyst as prepared by this method.Type: GrantFiled: October 21, 2005Date of Patent: January 25, 2011Assignee: Yangzi Petrochemical Company Co., Ltd.Inventors: Houliang Dai, Houping You, Chuanfeng Li, Xiaoli Yao, Lijin Zhou, Xiaoqiang Li, Yarning Wang, Zhonglin Ma, Jiye Bai
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Patent number: 7863213Abstract: A supported catalyst for olefin polymerization comprises a selected ionic activator, a selected organometallic catalyst and a support material. The selected activator must contain an active hydrogen moeity. The organometallic catalyst is characterized by having a phosphinimine ligand and a substituted cyclopentadienyl ligand (which contains from 7 to 30 carbon atoms). The supported catalyst exhibits excellent activity in gas phase olefin polymerizations and may be used under substantially “non-fouling” polymerization conditions.Type: GrantFiled: May 7, 2007Date of Patent: January 4, 2011Assignee: Nova Chemicals (International) S.A.Inventors: Ian McKay, Dusan Jeremic, Grant Berent Jacobsen, Sergio Mastroianni
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Publication number: 20100273962Abstract: A polyethylene may be prepared using a mixture of a silica supported catalyst and a magnesium chloride supported catalyst. By changing the ratio of the two catalysts, the polyethylene produced may have a varying bulk density and shear response. The method allows for the tuning or targeting of properties to fit a specific application, such as a blow molding or vapor barrier film.Type: ApplicationFiled: July 8, 2010Publication date: October 28, 2010Applicant: Fina Technology, Inc.Inventors: Vincent Barre, Kayo Vizzini, Steven Gray
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Patent number: 7816296Abstract: Embodiments of the present invention include a method of polymerizing olefins comprising contacting olefins with a catalyst composition made by the process of combining a hindered polyalicyclic alkyl catalyst precursor with a particulate inorganic oxide for a deposition time greater than 2 hours to form a catalyst composition. Embodiments of the present invention also include catalyst compositions comprising a hindered polyalicyclic alkyl catalyst precursor made by the process of combining the hindered polyalicyclic alkyl catalyst precursor with a particulate inorganic oxide for a deposition time greater than 2 hours to form the catalyst composition.Type: GrantFiled: January 20, 2010Date of Patent: October 19, 2010Assignee: Univation Technologies, LLCInventors: Maria A. Apecetche, John Moorhouse, Mark G. Goode, Ronald S. Eisinger, Kevin J. Cann
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Patent number: 7811957Abstract: Compositions are described for catalyzing or facilitating hydrogen transfer kinetics in various kinds of chemical reactions that depend on the efficiency of hydrogen relocation or exchange. One such composition has the formula M-H-E, where M is a metal, metalloid, alloy of a metal, alloy of a metalloid, compound of a metal or compound of a metalloid, H is hydrogen and E is an electronegative element. Another such composition is a hydrogen storage composition that includes the catalytic composition having the formula M-H-E and a hydride or a material capable of absorbing hydrogen to form a hydride.Type: GrantFiled: December 24, 2003Date of Patent: October 12, 2010Inventors: Alicja Zaluska, Leszek Zaluski
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Patent number: 7790820Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, typically using a supported catalyst composition. In one aspect, this invention encompasses precontacting a metallocene with an olefin or alkyne monomer and an organoaluminum compound, prior to contacting this mixture with the acidic activator-support.Type: GrantFiled: October 15, 2009Date of Patent: September 7, 2010Assignee: Chevron Phillips Chemical Company LPInventors: Michael D. Jensen, Gil R. Hawley, Max P. McDaniel, Tony Crain, Elizabeth A. Benham, Joel L. Martin, Qing Yang
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Patent number: 7745568Abstract: A process is provided for recovering polymer solids from a polymerisation reactor effluent. The process comprises extracting the polymerisation effluent from a polymerisation reactor; passing the effluent, or a part thereof, to a flash vessel for flashing liquid in the effluent to vapour, and removing said vapour from said flash vessel; passing the polymer solids from the flash vessel to a transfer apparatus which comprises a transfer vessel; passing the polymer solids from the transfer vessel to a purging means for removing residual liquid from the polymer solids; wherein the polymer solids are passed from the flash vessel to the purging means in a continuous flow such that a quantity of polymer solids is maintained in the transfer vessel. An apparatus for performing the process is also provided.Type: GrantFiled: February 8, 2005Date of Patent: June 29, 2010Assignee: Total Petrochemicals Research FeluyInventor: Hugo Vandaele
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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: 7732542Abstract: This invention relates to catalyst compositions, methods, and polymers encompassing at least one Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, typically in combination with at least one cocatalyst, and at least one activator. The compositions and methods disclosed herein provide ethylene polymers with low levels of long chain branching.Type: GrantFiled: November 18, 2009Date of Patent: June 8, 2010Assignee: Chevron Phillips Chemical Company, LPInventors: Qing Yang, Michael D. Jensen, Joel L. Martin, Matthew G. Thorn, Max P. McDaniel, Youlu Yu, David C. Rohlfing
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Patent number: 7700513Abstract: Disclosed are catalyst systems and methods of making the catalyst systems for the polymerization of an olefin containing a solid titanium catalyst component containing an inorganic titanium compound, a magnesium alcohol adduct made from an inorganic magnesium compound and an alcohol, and a porous support having at least one of a certain specific surface area, a certain pore volume, and a certain median particle size. The catalyst system may further contain an organoaluminum compound and optionally an organosilicon compound. Also disclosed are methods of making polyolefins.Type: GrantFiled: May 24, 2007Date of Patent: April 20, 2010Assignee: BASF Catalysts LLCInventors: Zhidong Zhu, Main Chang
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Patent number: 7671148Abstract: Process for producing a catalyst system, which comprises the following steps: A) provision of a mixture of at least two different organic transition metal compounds, at least one hydrolyzed organoaluminum compound and a solvent and impregnation of a dry porous support component with the mixture from step A), with the total volume of the mixture being from 0.6 to 1.5 times the total pore volume of the support component, and also catalyst systems obtainable in this way and their use for olefin polymerization.Type: GrantFiled: April 21, 2005Date of Patent: March 2, 2010Assignee: Basell Polyolefine GmbHInventors: Shahram Mihan, Harald Schmitz
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Patent number: 7632772Abstract: The invention relates to novel carbene ligands and their incorporated monomeric and resin/polymer linked ruthenium catalysts, which are recyclable and highly active for olefin metathesis reactions. It is disclosed that significant electronic effect of different substituted 2-alkoxybenzylidene ligands on the catalytic activity and stability of corresponding carbene ruthenium complexes, some of novel ruthenium complexes in the invention can be broadly used as catalysts highly efficient for olefin metathesis reactions, particularly in ring-closing (RCM), ring-opening (ROM), ring-opening metathesis polymerization (ROMP) and cross metathesis (CM) in high yield. The invention also relates to preparation of new ruthenium complexes and the use in metathesis.Type: GrantFiled: July 3, 2006Date of Patent: December 15, 2009Inventor: Zheng-Yun James Zhan
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Patent number: 7629464Abstract: Monocyclopentadienyl complexes in which the cyclopentadienyl system is substituted by at least one bridged donor, where the bridge contains at least one atom of group 14 of the Periodic Table and at least one atom of group 15 or 16 of the Periodic Table, and a catalyst system comprising at least one of the monocyclopentadienyl complexes, and also methods of 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 and the preparation of the associated cyclopentadienyl system.Type: GrantFiled: December 15, 2004Date of Patent: December 8, 2009Assignee: Basell Polyolefine GmbHInventors: Shahram Mihan, Markus Enders, Pablo Fernandez
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Patent number: 7629284Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, typically using a supported catalyst composition. In one aspect, this invention encompasses precontacting a metallocene with an olefin or alkyne monomer and an organoaluminum compound, prior to contacting this mixture with the acidic activator-support.Type: GrantFiled: August 27, 2007Date of Patent: December 8, 2009Assignee: Chevron Phillips Chemical Company, LPInventors: Michael D. Jensen, Gil R. Hawley, Max P. McDaniel, Tony Crain, Elizabeth A. Benham, Joel L. Martin, Qing Yang
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Patent number: 7618912Abstract: The present invention relates to a process for preparing a catalyst solid for olefin polymerization which is obtainable by bringing A) at least one organic transition metal compound, B) at least one organometallic compound, C) at least one organic compound having at least one functional group containing active hydrogen, D) at least one Lewis base and E) at least one support, into contact with one another, wherein the components are combined in any order without any work-up of the mixtures present at intermediate stages being carried out. In addition, the invention relates to the use of the catalyst solid for olefin polymerization, to catalyst solids obtainable by this process, to catalyst systems in which these catalyst solids are present and to a process for the polymerization of olefins in which these catalyst solids are used.Type: GrantFiled: July 14, 2003Date of Patent: November 17, 2009Assignee: Basell Polyolefine GmbHInventor: Roland Kratzer
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Patent number: 7619047Abstract: This invention relates to catalyst compositions, methods, and polymers encompassing at least one first Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, in combination with at least one second Group 4 metallocene with non-bridging ?5-cyclopentadienyl-type ligands, typically in combination with at least one cocatalyst, and at least one activator. The compositions and methods disclosed herein provide ethylene polymers with a bimodal molecular weight distribution.Type: GrantFiled: February 22, 2006Date of Patent: November 17, 2009Assignee: Chevron Phillips Chemical Company, LPInventors: Qing Yang, Kumudini C. Jayaratne, Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Matthew G. Thorn, Jerry T. Lanier, Tony R. Crain
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Patent number: 7612009Abstract: Metal complexes, catalyst compositions containing the metal complexes, and processes for making the metal complexes and the catalyst compositions are described for the manufacture of polymers from ethylenically unsaturated addition polymerizable monomers. The metal complexes have chemical structures corresponding to one of the following formulae: (Ia) (Ib) (VII) wherein MI. and MII. are metals; T is nitrogen or phosphorus; P is a carbon, nitrogen or phosphorus atom; groups R1, R2 and R3 may be linked to each other; Y is a divalent bridging group; X, X1, and X2 are anionic ligand groups with certain exceptions; D is a neutral Lewis base ligand; and s, o, k, i, ii, p, m, a, b, c, d, e, t, and y are numbers as further described in the claims.Type: GrantFiled: February 18, 2004Date of Patent: November 3, 2009Assignee: Dow Global Technologies, Inc.Inventor: Sven K.-H. Thiele
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Publication number: 20090234084Abstract: A metallocene compound of formula (I) wherein M is zirconium titanium or hafnium; X is hydrogen, halogen or an hydrocarbon group; R4, R5, R6, R7, R8, R9, R10, and R11, R12 and R13 are hydrogen atoms, or C1-C40 hydrocarbon radicals optionally containing heteroatoms belonging to groups 13-17 of the Periodic Table of the Elements; R1 and R2, equal to or different from each other, are linear or branched, C1-C20-alkyl radicals, and R3 is a C1-C40 hydrocarbon radical optionally containing heteroatoms belonging to groups 13-17 of the Periodic Table of the Elements;Type: ApplicationFiled: June 27, 2006Publication date: September 17, 2009Applicant: Basell Polyolefine GmbHInventors: Michael J. Elder, Robert L. Jones, Luigi Resconi
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Patent number: 7579415Abstract: The present invention relates to a polymerization process using improved metallocene catalyst systems. Specifically, the catalyst systems of the present invention relate to a metallocene compound having optimized metals loading and activator concentration, and demonstrate improved operability and productivity. In an exemplary embodiment, the improved metallocene catalyst system of the present invention comprises a metallocene catalyst compound activated by methylaluminoxane, and a support material, the methylaluminoxane being present in the range of from 3 to 9 mmole methylaluminoxane per gram of support material, and the metallocene being present in the range of from 0.01 to 1.0 mmole metallocene per gram of support material.Type: GrantFiled: January 31, 2007Date of Patent: August 25, 2009Assignee: Univation Technologies, LLCInventors: Agapios K. Agapiou, David M. Glowczwski
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Patent number: 7576163Abstract: This invention relates to catalyst compositions, methods, and polymers encompassing at least one Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, typically in combination with at least one cocatalyst, and at least one activator. The compositions and methods disclosed herein provide ethylene polymers with low levels of long chain branching.Type: GrantFiled: March 31, 2006Date of Patent: August 18, 2009Assignee: Chevron Phillips Chemical Company, LPInventors: Qing Yang, Max P. McDaniel, Michael D. Jensen, Matthew G. Thorn, Joel L. Martin, Youlu Yu, David C. Rohlfing