Elemental Oxygen Or Nonmetallic Inorganic Oxygen-containing Material, Other Than Water Patents (Class 502/120)
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Patent number: 6943224Abstract: A process for forming a coordination catalyst system comprising sequentially or substantially simultaneously contacting: (I) pre-catalyst reactants comprising (a) at least one first ligand-containing reactant; and (b) at least one first transition metal reactant suitable to form at least one metallocene or constrained geometry pre-catalyst compound (e.g., rac-ethylene bis(indenyl)zirconiUm dichloride); an optionally (c) at least one second ligand-containing reactant and (d) at least one second transition metal reactant suitable to form at least one non-metallocene, non-constrained geometry, bidentate or tridentate transition metal compound (e.g., tridentate 2,6-diacetylpyridine-bis(2,4,6-trimethylanaline)FeCl2) and (II) further contacting, jointly or individually, the pre-catalyst compound(s) and optional bidentate or tridentate compound(s) with at least one support-activator agglomerate (e.g., spray dried silica/clay agglomerate).Type: GrantFiled: April 10, 2002Date of Patent: September 13, 2005Assignee: W. R. Grace & Co.-Conn.Inventor: Keng-Yu Shih
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Patent number: 6936667Abstract: A process to produce a first catalyst composition is provided. The process comprises contacting at least one first organometal compound and at least one activator to produce the first catalyst composition. The activator is selected from the group consisting of aluminoxanes, fluoro-organo borates, and treated solid oxide components in combination with at least one organoaluminum compound. In another embodiment of this invention, a process to produce a second catalyst composition for producing bimodal polymers is provided. The process comprises contacting at least one first organometal compound, at least one activator, and at least one second organometal compound to produce the second catalyst composition. The first and second catalyst compositions are also provided as well as polymerization processes using these compositions to produce polymers.Type: GrantFiled: January 21, 2003Date of Patent: August 30, 2005Assignee: Phillips Petroleum CompanyInventors: Michael D. Jensen, Max P. McDaniel, Elizabeth A. Benham, Anthony P. Eaton, Joel L. Martin, Gil R. Hawley, Tony R. Crain, Martha J. Tanner
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Patent number: 6927261Abstract: The present invention is directed to a novel one-step method for forming a supported catalyst complex of high activity by substantially simultaneously contacting a bidentate or tridentate ligand forming compound, a transition metal compound and a Lewis acid support-activator agglomerate. The catalyst can be formed prior to polymerization of olefins or within the polymerization reaction zone.Type: GrantFiled: April 10, 2002Date of Patent: August 9, 2005Assignee: W. R. Grace & Co.-Conn.Inventor: Keng-Yu Shih
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Patent number: 6919412Abstract: Substituted monocyclopentadienyl, monoindenyl, monofluorenyl or heterocyclopentadienyl complexes of chromium, molybdenum or tungsten, wherein at least one of the substituents of the cyclopentadienyl ring carries a rigid donor function which is not exclusively bonded through sp3-hybridized carbon or silicon atoms, and a process for polymerizing olefins.Type: GrantFiled: August 1, 2000Date of Patent: July 19, 2005Assignee: Basell Polyolefine GmbHInventors: Shahram Mihan, Dieter Lilge, Paulus de Lange, Günther Schweier, Martin Schneider, Ursula Rief, Udo Handrich, Johannes Hack, Markus Enders, Gunter Ludwig, Ralph Rudolph
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Patent number: 6908876Abstract: The present invention relates to a supported catalyst system for olefin polymerization which comprises at least one metallocene component and a support of an inorganic oxide of silica, aluminum or a polymer containing hydroxyl groups. The support is modified with an organogermane and/or organotin compound. The inventive catalyst system produces minimal reactor fouling, has excellent productivity and good hydrogen responsiveness. The present invention also relates to a process for preparing the catalyst system and to the slurry/suspension or gas-phase polymerization of olefins using the catalytic system, optionally with a small amount of aluminoxane cocatalyst.Type: GrantFiled: April 16, 2003Date of Patent: June 21, 2005Assignee: Saudi Basic Industries CorporationInventors: Muhammad Atiqullah, Akhlaq Moman, Muhammad Naseem Akhtar, Atieh Abu-Raqabah, Syriac J. Palackal, Muhammad A. Al-Saleh, Faizur Rahman, Muhammad Ibrahim, Javaid H. Khan
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Patent number: 6906153Abstract: The invention provides a catalyst system (preferably a heterogeneous catalyst system) comprising: a transition metal bisphenolate catalyst (preferably a group 4 to 6 transition metal bisphenolate catalyst) and another olefin polymerization catalyst, and optionally a co-catalyst, e.g. an organoaluminium compound or a boron compound.Type: GrantFiled: January 31, 2002Date of Patent: June 14, 2005Assignee: Borealis Technology OyInventors: Richard Blom, Klaus J. Jens, Arlid Follestad, Olav B. Ryan
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Patent number: 6900153Abstract: A method for forming supported late transition metal olefin polymerization catalysts is described in which an already formed transition metal complex, usually containing a reactive functional group, is placed on a support containing a complementary reactive functional group. Also described are novel polymerization catalyst components containing late transition metal complexes of neutral tridentate ligands.Type: GrantFiled: March 27, 2002Date of Patent: May 31, 2005Assignees: E.I. Du Pont de Nemours and Company, University of North Carolina at Chapel HillInventor: Peter Preishuber-Pfluegl
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Patent number: 6900343Abstract: A process for purifying metallocenes in which a sparingly soluble metallocene halide is converted into a readily soluble and readily crystallizable metallocene by replacement of at least one halide ligand by an alternative negatively charged ligand and the metallocene obtained in this way is subsequently purified by crystallization.Type: GrantFiled: November 18, 1999Date of Patent: May 31, 2005Assignee: Basell Polyolefine GmbHInventors: Carsten Bingel, Patrik Müller, Hans-Herbert Brintzinger, Hans-Robert-Hellmuth Damrau
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Patent number: 6900154Abstract: Processes of forming a supported activated catalyst composition and method of polymerization are disclosed, the process of forming the composition including combining a halogenated aromatic aluminum activator compound with a fluorinated support and a catalyst to form a supported activated catalyst composition. Also disclosed is a supported activated catalyst composition, comprising the reaction product of a fluorinated support, a perfluorophenyl aluminum activator and in one embodiment a metallocene catalyst. In one embodiment, the halogenated aromatic aluminum activator is represented by the formula RnAl(ArHal)3?n, wherein ArHal is a halogenated aryl group, R is a monoanionic ligand, and n is 1 or 2.Type: GrantFiled: August 21, 2003Date of Patent: May 31, 2005Assignee: Univation Technologies, LLCInventors: Laughlin G. McCullough, Matthew W. Holtcamp
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Patent number: 6894131Abstract: Provided is a process for polymerizing olefins in the presence of a metallocene catalyst compound having at least one fluoride or fluorine containing leaving group. More particularly, the present invention is directed to a process and catalyst composition having improved reactor performance, reducing or eliminating the need for anti-fouling additives to the catalyst composition and/or the reactor. In one embodiment, the invention is a process of polymerizing olefins comprising contacting ethylene and at least one comonomer with a supported catalyst system comprising a metallocene catalyst compound, the metallocene catalyst compound comprising at least one fluoride ion or fluorine containing leaving group; and wherein the supported catalyst system comprises an inorganic oxide support having an average particle size of from 35 ?m or less and a pore volume of from 1 to 2 cm3/g. The polymer product resulting therefrom is, in one embodiment, a copolymer having a density in the range of from 0.910 g/cm3 to 0.Type: GrantFiled: June 18, 2003Date of Patent: May 17, 2005Assignee: Univation Technologies, LLCInventors: Laughlin G. McCullough, Agapios K. Agapiou
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Patent number: 6887819Abstract: This invention provides compositions that are useful for polymerizing at least one monomer into at least one polymer.Type: GrantFiled: January 5, 2004Date of Patent: May 3, 2005Assignee: Phillips Petroleum CompanyInventors: Max P. McDaniel, Shirley J. Martin, Kathy S. Collins, Marvin M. Johnson
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Patent number: 6884747Abstract: Linear low density polyethylenes (LLDPEs) that have relatively high melt index ratios (MIR) and relatively high melt strength (MS) are described. This combination of melt properties is achieved by a substantially non-blended LLDPE. Catalysts used to produce these polyethylenes are generally a blend of bridged bisindenyl zirconocene dichlorides, where one zirconocene contains saturated indenyls and the other unsaturated indenyls.Type: GrantFiled: September 27, 2001Date of Patent: April 26, 2005Assignee: Univation Technologies, LLCInventors: Armenag Hagop Dekmezian, Natalie Ann Merrill
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Patent number: 6884749Abstract: Olefin polymerization in the presence of heterogeneous supported catalysts is improved by incorporating into the supported catalyst a unifunctional hydrophobic tether comprising a hydrophobic portion containing no basic nitrogen and a univalent reactive group. The unifunctional hydrophobic tether reduces fouling and sheeting in gas phase polymerization processes and improves polymer morphology and bulk density in slurry polymerization processes, while substantially maintaining or enhancing catalyst polymerization activity.Type: GrantFiled: October 17, 2002Date of Patent: April 26, 2005Assignee: Equistar Chemicals L.P.Inventors: Karen L. Neal-Hawkins, Sandor M. Nagy, William J. Sartain, Kiran Gupte, Kenneth W. Johnson
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Patent number: 6881695Abstract: An olefin polymerization catalyst is provided which makes use of a modified methylaluminoxane and thus stably exhibits an activity equivalent to, or higher than, the activity achieved by polymethylaluminoxane. Specifically, the olefin polymerization catalyst is in the form of a modified methylaluminoxane preparation prepared from: an organoaluminum compound represented by the following general formula (I): R1mAlX3-m??(I) wherein R1 represents a straight-chained or branched hydrocarbon group selected from the group consisting of alkyl, alkenyl, and aryl groups having 2 to 20 carbon atoms; X represents a hydrogen atom, halogen atom, alkoxy group, or allyloxy group; and 0<m?3; and trimethyl aluminum, wherein the mole fraction of methyl group of the aluminoxane unit with respect to the total number of moles of the hydrocarbon group having 2 to 20 carbon atoms and methyl group present in the modified methylaluminoxane preparation is 65 mol % or greater.Type: GrantFiled: April 8, 2003Date of Patent: April 19, 2005Assignee: Tosoh Finechem CorporationInventors: Eiichi Kaji, Kouji Toyota, Toshihiro Takasugi, Hideki Kanazawa
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Patent number: 6872844Abstract: A complex of a Group 3-10 metal, said complex comprising a cyclic group containing delocalized electrons, a bridging group connecting he metal with the cyclic group, and acetylene or a derivative thereof.Type: GrantFiled: February 8, 2002Date of Patent: March 29, 2005Assignee: The Dow Chemical CompanyInventor: Alexander Vogel
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Patent number: 6872682Abstract: A catalyst system for the polymerization of ?-olefins prepared by a process which includes catalyst activation whereby a solid transitional metal compound is contacted with an organoaluminum compound and catalyst prepolymerization whereby a premonomer is prepolymerized in the presence of the activated catalyst. High activity, low fines polymerization can be achieved if in the first step of catalyst activation a first reaction mixture is prepared by contacting the solid transitional metal compound with a first organoaluminum compound in the presence of an oil and in the second step, the first reaction mixture is contacted with a second organoaluminum compound to give a second reaction mixture, the second organoaluminum compound being the same as or different from the first organoaluminum compound.Type: GrantFiled: February 11, 2000Date of Patent: March 29, 2005Assignee: Borealis Technology OyInventors: Kauno Alastalo, Pauli Leskinen
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Patent number: 6858558Abstract: The invention relates to a catalyst component and a catalyst system for the preparation of high molecular weight ethylene or alpha-olefin homopolymers, ethylene-alpha-olefin copolymers, terpolymers or tetrapolymers, in a polymerization process, which is expediently effected in solution, at elevated temperature, preferably at least 80 DEG C. The catalyst system comprises a group 4-6 metal, preferably group 4 metal, a cyclic ligand (such as a cyclopentadienyl-type ligand), which forms a delocalized pi-bond with the metal M, a monohapto bonded 1,3-diaza-2-imino heterocyclic ligand (such as an iminoimidazolidine-type ligand) and anionic ligands and a catalyst activator coupound.Type: GrantFiled: March 5, 2002Date of Patent: February 22, 2005Assignee: Stichting Dutch Polymer InstituteInventor: Winfried Peter Kretschmer
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Patent number: 6858557Abstract: Metal complexes having constrained geometry and a process for preparation thereof, addition polymerization catalysts formed therefrom, processes for preparation of such addition polymerization catalysts, methods of use, and novel polymers formed thereby, including ElPE resins and pseudo-random copolymers, are disclosed and claimed.Type: GrantFiled: April 13, 1998Date of Patent: February 22, 2005Assignee: The Dow Chemical CompanyInventor: James C. Stevens
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Patent number: 6855654Abstract: The invention relates to a process for uniformly dispersing a transition metal metallocene complex on a carrier comprising (1) providing silica which is porous and has a particle size of 1 to 250 microns, having pores which have an average diameter of 50 to 500 Angstroms and having a pore volume of 0.5 to 5.0 cc/g; (2) slurrying the silica in an aliphatic solvent having a boiling point less than 110° C.Type: GrantFiled: September 16, 2002Date of Patent: February 15, 2005Assignee: ExxonMobil Oil CorporationInventors: Yury V. Kissin, Robert I. Mink, Thomas E. Nowlin, Pradeep P. Shirodkar, Sandra D. Schregenberger, Grace O. Tsien
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Patent number: 6838563Abstract: Substituted monocyclopentadienyl, monoindenyl, monofluorenyl and heterocyclopentadienyl complexes of chromium, molybdenum or tungsten in which at least one of the substituents on the cyclopentadienyl ring carries a donor function which is bonded rigidly, not exclusively via sp3-hybridized carbon or silicon atoms, and a process for the polymerization of olefins.Type: GrantFiled: June 11, 2002Date of Patent: January 4, 2005Assignee: Basell PolyolefinsInventors: Shahram Mihan, Dieter Lilge, Paulus de Lange, Günther Schweier, Martin Schneider, Ursula Rief, Udo Handrich, Johannes Hack, Markus Enders, Gunter Ludwig, Ralph Rudolph
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Patent number: 6838533Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises contacting an organometal compound, an organoaluminum compound, and a solid, wherein said solid is selected from the group consisting of titanium tetrafluoride, zirconium tetrafluoride, and a treated solid oxide compound.Type: GrantFiled: May 23, 2003Date of Patent: January 4, 2005Assignee: Philips Petroleum CompanyInventors: Max P. McDaniel, Marvin M. Johnson, Bruce B. Randolph, Kathy S. Collins, Elizabeth A. Benham, Michael D. Jensen, Gil R. Hawley, Joel L. Martin
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Publication number: 20040248729Abstract: The present invention provides a high-activity solid main catalyst component for ethylene polymerization, a process for preparing the same and a catalyst containing the same. The main catalyst component consists essentially of a magnesium compound, a titanium compound, an electron donor, an alkyl aluminum compound and fumed silica, and is prepared by a process comprising the step of: reacting powdered magnesium with an alkyl halide to form a magnesium compound in the nascent state; adding the magnesium compound in the nascent state together with a titanium compound and an alkyl aluminum compound into an electron donor to form a complex; adding and well dispersing a fumed silica thereto to form a homogeneous thick mixture; molding and drying the mixture to form main catalyst component particles with good particle morphology; and optionally, dispersing the main catalyst component particles into a hydrocarbon solvent or a mineral oil to form a slurry.Type: ApplicationFiled: April 28, 2004Publication date: December 9, 2004Inventors: Mingwei Xiao, Shijiong Yu, Xiaofeng Ye
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Patent number: 6812303Abstract: A novel olefin polymerization catalyst comprising: (A) a transition metal compound comprising a transition metal having &eegr;-bonded thereto a cyclic anionic ligand; (B) a mixture of (B-1) an activator compound capable of forming, together with component (A), a metal complex having a catalytic activity and (B-2) an organometal compound, the activator compound (B-1) comprising a cation and a noncoordinating, compatible anion; (C) a solid component; and optionally (D) an organoaluminum compound, wherein the catalyst is obtained by contacting components (A) to (C) and optionally component (D).Type: GrantFiled: May 10, 2000Date of Patent: November 2, 2004Assignee: Asahi Kasei Kabushiki KaishaInventors: Fumio Matsushita, Akio Fujiwara
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Patent number: 6812185Abstract: In a process for preparing a metal-containing supported catalyst or a metal-containing supported catalyst component by impregnation of a support material with an impregnation solution comprising the metal component, the impregnation solution flows through the support material.Type: GrantFiled: July 30, 2003Date of Patent: November 2, 2004Assignee: Basell Polyolefine GmbHInventors: David Fischer, Wolfgang Bidell, Ulrich Moll, Joachim Rösch, Franz Langhauser, Roland Hingmann, Heike Gregorius, Carsten Süling, Günther Schweier
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Patent number: 6803427Abstract: The present invention relates to a method for producing a polymer and copolymer of ethylene, and more particularly to a method for producing an ethylene polymer and copolymer by reacting a compound of an organic metal of Group 2, 12, or 13 on the periodic table of elements with an alkoxy silane compound in the presence of a titanium catalyst, the said titanium catalyst being produced by a process of preparing a magnesium compound by contact-reacting a halogenated magnesium compound and alcohol, of reacting the said solution with an ester compound which contains at least one hydroxy group and a silicon compound containing an alkoxy group, and also of reacting it with a solid matter obtained by reaction of a mixture of a titanium compound and a silicon compound with a titanium compound.Type: GrantFiled: May 25, 2001Date of Patent: October 12, 2004Assignee: Samsung General Chemicals Co., Ltd.Inventors: Chun-Byung Yang, Sang-Yull Kim, Weon Lee
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Patent number: 6787616Abstract: A solid catalyst for olefin polymerization, which comprises a silica carrier (A) having a specific surface area of from 600 to 850 m2/g, a pore volume of from 0.1 to 0.8 ml/g and an average particle size of from 2 to 12 &mgr;m, and an organoaluminum-oxy compound (B) and a Group IVB transition metal compound (C) containing a ligand having a cyclopentadienyl skeleton, supported on the carrier (A).Type: GrantFiled: June 18, 2003Date of Patent: September 7, 2004Assignee: Maruzen Petrochemical Co., Ltd.Inventors: Toshifumi Takemori, Masashi Iida, Minoru Iijima, Yoshihisa Hayashida, Masao Kawahara
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Patent number: 6787498Abstract: Substituted monocyclopentadienyl, monoindenyl, monofluorenyl and heterocyclopentadienyl complexes of chromium, molybdenum or tungsten in which at least one of the substituents on the cyclopentadienyl ring carries a donor function which is bonded rigidly, not exclusively via sp3-hybridized carbon or silicon atoms, and a process for the polymerization of olefins.Type: GrantFiled: June 11, 2002Date of Patent: September 7, 2004Assignee: Basell Polyolefine GmbHInventors: Shahram Mihan, Dieter Lilge, Paulus de Lange, Günther Schweier, Martin Schneider, Ursula Rief, Udo Handrich, Johannes Hack, Markus Enders, Gunter Ludwig, Ralph Rudolph
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Patent number: 6762258Abstract: Novel nitrogen containing transition metal complexes have general formula (I): wherein M is Fe[II], Fe[III], Ni[II], Co[I], Co[II], Co[III], V[III], Mn[I], Mn[II], Mn[III], Mn[IV], Ru[II], Ru[III] or Ru[IV]; Pd[II], V[III], V[IV] or V[V]. X represents an atom or group covalently or ionically bonded to the transition metal M; R is independently selected from hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl; Z is a bridging group comprising a donor atom of N, P or S or alternatively is a neutral group comprising a C1-C4 alkylene group, a silyl or germyl group, and n= an integer to satisfy the valency of M.Type: GrantFiled: August 9, 2001Date of Patent: July 13, 2004Assignee: BP Chemicals LimitedInventors: Manfred Bochmann, Mark John Sarsfield
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Patent number: 6750302Abstract: A polymerization catalyst is disclosed, wherein the catalyst comprises: (a) a metallocene of Ti, Zr or Hf, (b) an organoaluminum compound, and (c) a treated solid oxide support which comprises fluorine and chromium.Type: GrantFiled: December 16, 1999Date of Patent: June 15, 2004Assignee: Phillips Petroleum CompanyInventors: Max P. McDaniel, Kathy S. Collins, Elizabeth A. Benham, Anthony P. Eaton, Michael D. Jensen, Joel L. Martin, Gil R. Hawley, Eric T. Hsieh
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Publication number: 20040106751Abstract: The present invention relates to the use of thermally triggered compounds that when used with a polymerization catalyst in a polymerization process results in the controllable generation of one or more catalyst inhibitors that renders the polymerization catalyst substantially or completely inactive.Type: ApplicationFiled: November 24, 2003Publication date: June 3, 2004Inventors: Timothy T. Wenzel, Dick Alan Nagaki, Thomas Henry Peterson, David James Schreck
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Patent number: 6743932Abstract: An organometallic compound of the formula I where M1 is selected from among Fe, Ru and Os and M2 is selected from among the transition metals of groups IV to VI of the Periodic Table, which can be prepared by reacting an organometallic compound of the formula II with a transition metal compound of the formula III, M2L1L2(L3)x+1 III where the variables are as defined above and the organometallic compound of the formula II can, if desired, be doubly deproteinated beforehand, can be used as part of a catalyst system for the polymerization or copolymerization of olefins. This catalyst system comprises one or more organometallic compounds of the formula I and at least one activator.Type: GrantFiled: April 6, 2001Date of Patent: June 1, 2004Assignee: Basell Polyolefine GmbHInventors: Marc Oliver Kristen, Benno Bildstein, Michael Malaun, Ulrich Siemeling, Oliver Kuhnert
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Patent number: 6734266Abstract: A supported catalyst for olefin polymerization comprises a combination of a sulfated metal oxide support, an aluminoxane and an organometallic complex of a group 4 metal. The sulfated metal oxide may be quickly and conveniently prepared by, for example, contacting the precursor metal oxide with a sulfuric acid. The supported catalyst of this invention is highly active for olefin polymerization in comparison to conventional catalysts which are prepared with non-sulfated supports.Type: GrantFiled: February 13, 2002Date of Patent: May 11, 2004Assignee: Nova Chemicals (International) S.A.Inventors: Xiaoliang Gao, P. Scott Chisholm, Matthew Gerald Kowalchuk, Robert D. Donaldson
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Patent number: 6730755Abstract: A supported catalyst for olefin polymerization comprises a combination of a novel metal oxide support and an activator which is an aluminoxane or a boron activator. The novel metal oxide support of this invention is a conventional particulate metal oxide support material (such as silica or alumina) which has been treated with a halosulfonic acid. A catalyst system which contains this novel catalyst support and a transition metal catalyst is highly active for olefin polymerization (in comparison to prior art catalyst systems which use a conventional metal oxide support).Type: GrantFiled: February 7, 2002Date of Patent: May 4, 2004Assignee: Nova Chemicals (Internation) S.AInventors: Xiaoliang Gao, P. Scott Chisholm, Matthew Gerald Kowalchuk, Robert D. Donaldson
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Patent number: 6723809Abstract: Bimetal catalyst for the (co)polymerization of &agr;-olefins comprising a co-catalyst consisting of a hydride or an organometallic compound of an element of groups 1, 2 or 13 of the periodic table, and a solid component consisting of at least 95% by weight of titanium, magnesium, hafnium, aluminum, chlorine and R—COO carboxylate groups, wherein R is an aliphatic, cycloaliphatic or aromatic hydrocarbon, containing from 1 to 30 carbon atoms, wherein at least 80% of the titanium is in oxidation state +3, and at least 1% of said titanium in oxidation state +3 has a tetrahedral coordination geometry. Said catalyst allows the production of olefinic polymers, particular polyethylene, with a high molecular weight by means of solution polymerization processes at temperatures exceeding 200° C.Type: GrantFiled: January 18, 2002Date of Patent: April 20, 2004Assignee: Polimeri Europa S.r.l.Inventors: Francesco Menconi, Giuseppe Conti, Alberto Zanellato, Angelo Moalli
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Publication number: 20040058804Abstract: The present invention relates to a metallocene compound having a functional group that facilitates the preparation of the supported metallocene catalyst for olefin polymerization and the olefin polymerization process using the same. The metallocene compounds in this invention are strongly supported on the inorganic support due to the strong chemical bond of the ligand of the metallocene compound with the silica surface, which leads to minimize leaching of the catalyst during the activation process. Therefore, the supported catalyst of this invention allows the olefin polymerization process to proceed without any fouling in the reactor with a slurry or a gas phase process, and the morphology and bulk density of the polymer produced are much better defined than those produced by conventional methods.Type: ApplicationFiled: September 18, 2003Publication date: March 25, 2004Applicant: LG Chemical Ltd.Inventors: Bun-Yeoul Lee, Jae-Seung Oh, Joo-Eun Lee, Do-Hoon Lee
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Patent number: 6710143Abstract: A phosphinimine catalyst for olefin polymerization is supported on a directly fluorided metal oxide with an aluminoxane. This catalyst is highly active for olefin polymerization in comparison to prior art catalysts which use non-fluorided metal oxide supports. The directly fluorided metal oxide may be conveniently prepared by contacting the precursor metal oxide with a simple alkali metal salt (such as NaF) in an aqueous slurry.Type: GrantFiled: September 16, 2002Date of Patent: March 23, 2004Assignee: Nova Chemicals (International) S.A.Inventors: Xiaoliang Gao, P. Scott Chisholm, Robert D. Donaldson, Ian McKay
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Publication number: 20040029719Abstract: A catalyst composition, and olefin polymerization process using same, formed from a mixture of a non-aluminoxane aluminum compound, an inorganic oxide and a transition metal bidentate or tridentate complex in certain prescribed proportions. The composition can be formed in a single step or in-situ in the polymerization reaction zone. The resultant catalyst has high activity and is capable of producing high molecular weight olefin products without reactor fouling.Type: ApplicationFiled: August 5, 2003Publication date: February 12, 2004Inventor: Keng Yu Shih
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Publication number: 20040024147Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted fluorided solid oxide compound.Type: ApplicationFiled: May 19, 2003Publication date: February 5, 2004Inventors: Max P. McDaniel, Kathy S. Collins, James L. Smith, Elizabeth A. Benham, Marvin M. Johnson, Anthony P. Eaton, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
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Patent number: 6686306Abstract: A coordination catalyst system comprising at least one metallocene or constrained geometry pre-catalyst transition metal compound, (e.g., rac-ethylene bis(indenyl)zirconium dichloride), at least one non-metallocene, non-constrained geometry, bidentate transition metal compound or tridentate transition metal compound (e.g., tridentate 2,6-diacetylpyridine-bis(2,4,6-trimethylanaline)FeCl2), at least one support-activator (e.g., spray dried silica/clay agglomerate), and optionally at least one organometallic compound (e.g., triisobutyl aluminum), in controlled amounts, and methods for preparing the same. The resulting dual transition metal catalyst system is suitable for addition polymerization of ethylenically and acetylenically unsaturated monomers into polymers; for example, polymers having a broad molecular weight distribution, Mw/Mn, and good polymer morphology.Type: GrantFiled: April 10, 2002Date of Patent: February 3, 2004Assignee: W.R. Grace & Co.- Conn.Inventor: Keng-Yu Shih
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Patent number: 6683018Abstract: A process for the preparation of a supported catalyst system, an inorganic carrier material being reacted with a metal compound of the formula M1(R1)r(R2)5(R3)t(R4)u I in the presence of an inert solvent in a first step and, in a subsequent step, the suspension thus obtained being reacted with a metallocene complex and a compound forming metallocenium ions, in which process the solvent is not removed after the first step and the subsequent step is carried out without isolation of the pretreated carrier material thus obtained.Type: GrantFiled: August 14, 2000Date of Patent: January 27, 2004Assignee: BASF AktiengesellschaftInventors: Marc Oliver Kristen, Laurent Deloux, Peter Kölle, Ulrich Moll, Ursula Rief
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Publication number: 20040014596Abstract: Activator solid support for metallocenes as catalysts in the polymerization of olefins, characterized in that it consists of a group of support particles for a solid catalytic component, which are formed from at least one porous mineral oxide, the said particles having been modified in order to carry, on the surface, aluminium and/or magnesium Lewis-acid sites of formula: 1Type: ApplicationFiled: April 1, 2003Publication date: January 22, 2004Inventors: Thierry Saudemont, Roger Spitz, Jean-Pierre Broyer, Jean Malinge, Nathalie Verdel
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Patent number: 6664430Abstract: The present invention provides a catalyst for preparing a fluorine-containing alcohol compound, the catalyst having at least one component selected from elements in Group 1B, Group 2B, Group 6A, Group 7A and Group 8 of the periodic table, ions of these elements, oxides containing these elements, hydroxides containing these elements and salts containing these elements, said component being supported on at least one complex oxide selected from Si—Al complex oxides, Al—P complex oxides and Si—Al—P complex oxides; and a method for preparing a fluorine-containing alcohol compound, the method comprising reacting a halogenated fluorine compound with water in the presence of the catalyst. According to the present invention, a fluorine-containing alcohol compound can be prepared at a relatively low reaction temperature and in a high yield.Type: GrantFiled: November 13, 2001Date of Patent: December 16, 2003Assignee: Daikin Industries, Ltd.Inventors: Jun Miki, Hirokazu Aoyama
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Patent number: 6660815Abstract: The present invention relates to a composition of carboxylate metal salt and a flow improver useful in combination with a polymerization catalyst to improve the flowability and bulk density of the catalyst. The invention also relates to a polymerization process using the catalyst.Type: GrantFiled: September 24, 2002Date of Patent: December 9, 2003Assignee: Univation Technologies, LLCInventors: Agapios K. Agapiou, Chi-I Kuo
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Publication number: 20030208011Abstract: The invention relates to an improved olefin catalyst, a method of in situ-activated catalyst preparation and a process for the polymerization of olefinic monomers via, for example, a titanium trichloride/magnesium dichloride/tetrahydrofuran reaction product catalyst precursor. The activated catalyst is prepared in situ in a polymerization reactor using an alumoxane based co-catalyst wherein the cumbersome traditional steps of catalyst activation and isolation, prior to polymerization are eliminated. An unexpected advantage of this invention is a significant increase in catalyst productivity while maintaining a relatively constant value of the bulk density of polymeric materials produced while concomitantly producing a polymeric product having a broad molecular weight distribution compared with typical alumoxane-activated metallocene catalysts.Type: ApplicationFiled: April 17, 2003Publication date: November 6, 2003Applicant: Saudi Basic Industries CorporationInventors: Atieh Abu-Raqabah, Abdul Wahab Al-Sadoun, Navin Nallaveerapan
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Patent number: 6605561Abstract: Activator solid support for metallocenes as catalysts in the polymerization of olefins, characterized in that it consists of a group of support particles for a solid catalytic component, which are formed from at least one porous mineral oxide, the said particles having been modified in order to carry, on the surface, aluminium and/or magnesium Lewis-acid sites of formula: or —Mg—F, the groups coming from a functionalization agent having reacted with —OH radicals carried by the base particles of the support, the functionalization reaction having been followed by a fluorination reaction. The catalytic system according to the invention comprises (a) a metallocene catalyst, which has, if required, been subjected to a prealkylation treatment; (b) a cocatalyst; and (c) an activator solid support for metallocene, as defined above, it being possible for the cocatalyst (b) to be absent if the metallocene catalyst (a) has been prealkylated.Type: GrantFiled: April 2, 2001Date of Patent: August 12, 2003Assignee: Elf Atochem, S.A.Inventors: Thierry Saudemont, Roger Spitz, Jean-Pierre Broyer, Jean Malinge, Nathalie Verdel
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Patent number: 6586543Abstract: The present invention provides a process for preparing a substantially amorphous poly-&agr;-olefin, which includes: a) preforming a solid catalyst and, optionally, a first amount of a trialkylaluminum cocatalyst, by contacting the catalyst and optionally the cocatalyst with at least one selected from the group including oxygen and a compound which includes active oxygen, to form a preformed catalyst, wherein the solid catalyst includes magnesium, aluminum and titanium, and wherein said trialkylaluminum cocatalyst includes 1 to 9 carbon atoms in each alkyl group; b) contacting the preformed catalyst with a second amount of the cocatalyst, wherein a molar ratio of trialkylaluminum to the titanium ranges from 40:1 to 700:1, to form a catalyst mixture; c) polymerizing, in the liquid phase, with the catalyst mixture, an olefin or an olefin mixture at a temperature between 30 and 160° C., to produce the poly-&agr;-olefin.Type: GrantFiled: September 1, 2000Date of Patent: July 1, 2003Assignee: Degussa AGInventors: Hans Guenther Wey, Norbert Schlueter
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Publication number: 20030120002Abstract: This invention provides compositions that are useful for polymerizing at least one monomer into at least one polymer.Type: ApplicationFiled: February 4, 2003Publication date: June 26, 2003Applicant: PHILLIPS PETROLEUM COMPANYInventors: Max P. McDaniel, Shirley J. Martin, Kathy S. Collins, Marvin M. Johnson
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Patent number: 6579822Abstract: A metallocene compound having the general formula: CpAXMQ1Q2Cp′A′X′M′Q1′Q2′ wherein Cp and Cp′ are each independently a substituted or unsubstituted cyclopentadienyl moiety; M and M′ are each independently a metal chosen from Group IV B transition metals and vanadium, and coordinate to Cp and Cp′ respectively; X and X′ are each independently a substituted or unsubstituted Group VA or VIA heteroatom and coordinate to M and M′ respectively; A and A′ are bridging groups between Cp and X and between Cp′ and X′ respectively and are independently chosen from —SiR′2—O—SiR′2—, —SinR′m—, —CnR′m— and —CR′2—SiR′2—CR′2—SiR′2—, in which each R′ is independently H or hydrocarbyl having 1 to 20 carbon atoms, n is an integer in the range 1 to 4 and m=2n; each Q1, Q2 and Q1′ and Q2′ is independeType: GrantFiled: January 31, 2002Date of Patent: June 17, 2003Assignee: Fina Research, S.A.Inventors: Abbas Razavi, Olivier Miserque
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Patent number: 6576727Abstract: The present invention relates to a catalyst system for gas phase polymerization of conjugated dienes, consisting of a rare earth compound, an aluminum organic compound, a further Lewis acid, optionally a conjugated diene, an inert inorganic or organic support and a co-catalyst applied to an inorganic support, in order to improve the flowability of rubber thus produced.Type: GrantFiled: July 13, 2000Date of Patent: June 10, 2003Assignee: Bayer AktiengesellschaftInventors: Michael Dauben, Jürgen Schneider, Gerd Sylvester, Nobert Steinhauser
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Patent number: 6569964Abstract: The invention relates to an improved olefin catalyst, a method of in situ-activated catalyst preparation and a process for the polymerization of olefinic monomers via, for example, a titanium trichloride/magnesium dichloride/tetrahydrofuran reaction product catalyst precursor. The activated catalyst is prepared in situ in a polymerization reactor using an alumoxane based co-catalyst wherein the cumbersome traditional steps of catalyst activation and isolation, prior to polymerization are eliminated. An unexpected advantage of this invention is a significant increase in catalyst productivity while maintaining a relatively constant value of the bulk density of polymeric materials produced while concomitantly producing a polymeric product having a broad molecular weight distribution compared with typical alumoxane-activated metallocene catalysts.Type: GrantFiled: February 14, 2002Date of Patent: May 27, 2003Assignee: Saudi Basic Industries CorporationInventors: Atieh Abu-Raqabah, Abdul Wahab Al-Sádoun, Navin Nallaveerapan