Silicon Present In Inorganic Oxygen-containing Compound Patents (Class 526/129)
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Patent number: 6632899Abstract: An active non-metallocene pre-catalyst featuring a diamine diphenolate complex and a corresponding method for catalytic polymerization, in general, and, tactic catalytic polymerization, in particular, of alpha-olefin monomers using the disclosed pre-catalyst.Type: GrantFiled: June 25, 2002Date of Patent: October 14, 2003Assignee: Ramot at Tel Aviv University Ltd.Inventors: Moshe Kol, Edit Y. Tshuva
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Patent number: 6632901Abstract: The present invention relates to a polymerization process in the presence of a bulky ligand metallocene-type catalyst compound having an abstractable fluoride or fluorine containing leaving group.Type: GrantFiled: November 13, 1998Date of Patent: October 14, 2003Assignee: Univation Technologies, LLCInventor: Laughlin G. McCullough
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Patent number: 6630548Abstract: A gas-phase process for polymerizing an olefin is disclosed. The process involves feeding the catalyst into the reactor in a stream of gas that comprises at least 75 volume % of a noble gas in order to reduce static.Type: GrantFiled: November 1, 2002Date of Patent: October 7, 2003Assignee: Equistar Chemicals, LPInventors: Kiran M. Gupte, Kevin Tolley, Joel A. Mutchler, Charles S. Holland
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Patent number: 6630546Abstract: Use of a catalyst system comprising a metallocene catalyst component of general formula R″(CpRm) (Cp′R′n)MQ2 supported on an inert support in the slurry phase production of linear low density polyolefin, wherein Cp is a cyclopentadienyl moiety, Cp′ is a substituted or unsubstituted fluorenyl ring; R″ is a structural bridge imparting stereorigidity to the component; each R is independently hydrogen or hydrocarbyl having 1 to 20 carbon atoms in which 0≦m≦4; each R′ is independently hydrocarbyl having 1 to 20 carbon atoms in which 0≦n≦B; M is a Group IVB transition metal or vanadium; and each Q is hydrocarbyl having 1 to 20 carbon atoms or halogen; the metallocene having a centroid-M-centroid angle in the range 105° to 125°.Type: GrantFiled: March 22, 2002Date of Patent: October 7, 2003Assignee: Fina Research, S.A.Inventors: Abbas Razavi, Liliane Peters
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Patent number: 6627712Abstract: A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) an iron-containing compound, (b) a silyl phosphonate, and (c) an organoaluminum compound.Type: GrantFiled: February 19, 2001Date of Patent: September 30, 2003Assignee: Bridgestone CorporationInventor: Steven Luo
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Patent number: 6627714Abstract: An olefinic copolymer having a cyclic structure is prepared by copolymerizing a) ethylene (M1) and b) dicyclopentadiene or tricyclopentadiene (M2), and, optionally c) a cyclic olefin (M3), in the presence of a catalyst which contains a metallocene compound (A) having formula [1]: H2C(R′mCp)(R″nCp)MX2[1], wherein M is zirconium or hafnium, Cp has a cyclopentadienyl skeleton, each of R′ and R″ is a hydrocarbon group having 1 to 10 carbon atoms, each of two X's which may be the same or different from each other, is a halogen, a hydrogen, a hydrocarbon group having 1 to 20 carbon atoms, a halogenated hydrocarbon group, an alkylamino group, an alkoxy group, an aryloxy group of the formula —O—Ar—Yp, a thioalkyl group, or a thioaryl group of the formula —S—Ar—Yp; wherein Ar is an aromatic ring, Y is a halogen, a hydrogen, a hydrocarbon group having 1 to 20 carbon atoms, a halogenated hydrocarbon group, an alkoxy group, an alkylaminoType: GrantFiled: November 5, 2001Date of Patent: September 30, 2003Assignee: Maruzen Petrochemical Co., Ltd.Inventors: Shigeharu Yamamoto, Sakae Kamiyama, Toshifumi Takemori, Yoji Suzuki, Kazuhiko Mizuno, Yoko Furuyama, Hiroshi Yamazaki
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Patent number: 6627706Abstract: This invention relates to a process for the preparation of olefin polymers, preferably a multi-stage process, in which hydrogen is used to control the molecular weight of the olefin polymer produced in a continuous reactor, in particular a process wherein a metallocene or other single site catalyst is present in the polymerization reaction mixture, as well as to olefin polymers produced thereby.Type: GrantFiled: February 14, 2001Date of Patent: September 30, 2003Assignee: Borealis Technology OyInventors: Arild Follestad, Hannu Salminen
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Transition metal catalyst compounds having deuterium substituted ligand and catalyst systems thereof
Patent number: 6624107Abstract: The present invention relates to a Group 15 containing transition catalyst compound, a catalyst system and a supported catalyst system thereof and to a process for polymerizing olefin(s) utilizing them.Type: GrantFiled: December 20, 2001Date of Patent: September 23, 2003Assignee: Univation Technologies, LLCInventors: Timothy T. Wenzel, Thomas Henry Peterson -
Publication number: 20030176604Abstract: The invention concerns a method for producing ethylene homopolymers or copolymers comprising at least 90 mol % of units derived from ethylene which consists in: contacting in polymerising conditions, the monomers with a catalytic system including: (a) a catalytic solid comprising a metallocene of a transition metal of groups 4 to 6 of the periodic table containing at least a cyclopentadiene ligand capable of being substituted and a support, (b) at least an organoaluminium compound selected among compounds of general formula (1): AITx(Y′)yX′z wherein: T is a hydrocarbon group containing 1 to 30 carbon atoms; Y′ is a group selected among —OR′, —SR′ and NR′R″ with R′ and R″ independently representing a hydrocarbon group containing 1 to 30 carbon atoms; X′ is a halogen atom: x verifies the relationship 0<x≦3; y verifies the relationship 0≦y<3; z verifies the relationship 0≦z<3, and x+y+z=3, and (c) at leastType: ApplicationFiled: May 5, 2003Publication date: September 18, 2003Inventors: Giuliano Bertozzi, Fabian Siberdt
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Patent number: 6620757Abstract: The present invention relates to mixed catalyst system of a Group 15 containing metal catalyst compound, a bulky ligand metallocene-type catalyst compound, and a Lewis acid aluminum containing activator and to a supported version thereof and for their use in a process for polymerizing olefin(s).Type: GrantFiled: January 25, 2002Date of Patent: September 16, 2003Assignee: Univation Technologies, LLCInventors: David H. McConville, Matthew W. Holtcamp, Donald R. Loveday
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Publication number: 20030171510Abstract: A novel magnesium treated silica-containing compound that is useful as a support for chromium based olefin polymerization catalyst systems is provided which produces ethylene polymers having with MWD's that promote good properties particularly in HMW film applications.Type: ApplicationFiled: December 18, 2002Publication date: September 11, 2003Inventors: Joseph S. Shveima, Max P. McDaniel, Shirley J. Martin, Kathy S. Collins, Elizabeth A. Benham, Anthony P. Eaton, Ashish M. Sukhadia
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Publication number: 20030171512Abstract: The invention provides for polymerization catalyst compositions, and for methods for introducing the catalyst compositions into a polymerization reactor. More particularly, the method combines a catalyst component containing slurry and a catalyst component containing solution to form the completed catalyst composition for introduction into the polymerization reactor. The invention is also directed to methods of preparing the catalyst component slurry, the catalyst component solution and the catalyst compositions, to methods of controlling the properties of polymer products utilizing the catalyst compositions, and to polymers produced therefrom.Type: ApplicationFiled: February 24, 2003Publication date: September 11, 2003Inventors: Simon Mawson, Sun-Chueh Kao, Tae Hoon Kwalk, Timothy Roger Lynn, David H. McConville, Matthew Gary McKee, John Francis Szul, Kersten Anne Terry, Timothy T. Wenzel, Mark Gregory Goode, John Henry Oskam, Robert J. Jorgensen, Robert Harold Vogel
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Publication number: 20030171513Abstract: The invention provides for polymerization catalyst compositions, and for methods for introducing the catalyst compositions into a polymerization reactor. More particularly, the method combines a catalyst component containing slurry and a catalyst component containing solution to form the completed catalyst composition for introduction into the polymerization reactor. The invention is also directed to methods of preparing the catalyst component slurry, the catalyst component solution and the catalyst compositions, to methods of controlling the properties of polymer products utilizing the catalyst compositions, and to polymers produced therefrom.Type: ApplicationFiled: February 24, 2003Publication date: September 11, 2003Inventors: Simon Mawson, Sun-Chueh Kao, Tae Hoon Kwalk, Timothy Roger Lynn, David H. McConville, Matthew Gary McKee, John Francis Szul, Kersten Anne Terry, Timothy T. Wenzel, Mark Gregory Goode, John Henry Oskam, Robert J. Jorgensen, Robert Harold Vogel
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Patent number: 6617404Abstract: A process for preparing pillared chromium phyllosilicate clay &agr;-olefin catalysts is disclosed. This process utilizes palygorskite and sepiolite clays. The pillaring of said clays comprises the steps of: (a) preparing a hydrolyzed first solution by dissolving a chromium salt and a base in water, heating said first solution to a temperature in the range of about 20° C. to about 100° C. while stirring continuously until the solution reaches a pH in the range of about 1.5 to about 2.5 and thereby producing a master batch; (b) diluting said master batch with water to produce a diluted second solution and heating said diluted second solution to produce a heated second solution; (c) adding a solid clay selected from the group consisting of sepiolites and palagorskites to said heated second solution, and continuing heating; (d) recovering said pillared chain silicate clay; and (e) drying said pillared chain silicate clay to form first product.Type: GrantFiled: February 28, 2002Date of Patent: September 9, 2003Assignee: Phillips Petroleum CompanyInventor: Joseph S. Shveima
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Publication number: 20030166801Abstract: Supported ionic metallocene catalyst systems may be prepared by a method comprising the following steps: i) mixing together in a suitable solvent: a) an organometallic compound, and b) an ionic activator comprising a cation and an anion; ii) addition of the mixture from step (i) to a support material; iii) addition of a metallocene complex in a suitable solvent; iv) further addition of an organometallic compound in a suitable solvent; and v) removal of the solvent. The preferred supported catalysts comprise a constrained geometry metallocene complex for example (t-butylamido)(tetramethyl-5-cyclopentadienyl)dimethyl silanetitanium-→4-1,3-pentadiene and are particularly suitable for the polymerisation of ethylene or the copolymerisation of ethylene and &agr;-olefins having from 3 to 10 carbons in the gas phase.Type: ApplicationFiled: January 16, 2003Publication date: September 4, 2003Inventors: Christel Marie-Claude Mealares, Michael John Taylor
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Publication number: 20030166457Abstract: This invention relates to a method to support one or more catalyst compounds comprising contacting the catalyst compounds with a pretreatment agent comprising an aluminum alkyl and or an alumoxane in solution and thereafter contacting the combination with a supported activator.Type: ApplicationFiled: February 5, 2003Publication date: September 4, 2003Inventors: Thomas Henry Peterson, Eric Lucas
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Publication number: 20030162917Abstract: A chromium containing catalyst wherein the chromium atom is in one of its higher valence states and is immobilized to a support-agglomerate composed of at least one inorganic oxide component and at least one ion-containing layered component.Type: ApplicationFiled: April 10, 2002Publication date: August 28, 2003Inventors: Keng-Yu Shih, Dean Alexander Denton, Rimantas Glemza
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Patent number: 6610805Abstract: New ligands having a backbone comprised of NCCX can be combined with a metal or metal precursor compound or formed into a metal-ligand complex to catalyze a number of different chemical transformations, including polymerization.Type: GrantFiled: October 5, 2000Date of Patent: August 26, 2003Assignee: Symyx Technologies, Inc.Inventors: Anil S. Guram, Anne Marie LaPointe, Howard W. Turner, Tetsuo Uno
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Patent number: 6608152Abstract: A novel process for the polymerization of olefins is provided. The process involves contacting at least one olefin with a Ziegler-Natta type catalyst in the presence of a specified compound that results in the production of polymeric products having a narrower molecular weight distribution. Also provide is a process for narrowing the molecular weight distribution of a polyolefin comprising contacting an olefin, a Ziegler-Natta catalyst and a compound specified herein. Further provided are novel polyethylenes, and films and articles produced therefrom.Type: GrantFiled: July 27, 2001Date of Patent: August 19, 2003Assignee: Eastman Chemical CompanyInventors: Randal Ray Ford, Richard Kingsley Stuart, Jr.
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Patent number: 6608149Abstract: The invention provides for polymerization catalyst compositions, and for methods for introducing the catalyst compositions into a polymerization reactor. More particularly, the method combines a catalyst component containing slurry and a catalyst component containing solution to form the completed catalyst composition for introduction into the polymerization reactor. The invention is also directed to methods of preparing the catalyst component slurry, the catalyst component solution and the catalyst compositions, to methods of controlling the properties of polymer products utilizing the catalyst compositions, and to polymers produced therefrom.Type: GrantFiled: December 4, 2000Date of Patent: August 19, 2003Assignee: Univation Technologies, LLCInventors: Simon Mawson, Sun-Chueh Kao, Tae Hoon Kwalk, Timothy Roger Lynn, David H. McConville, Matthew Gary McKee, John Francis Szul, Kersten Anne Terry, Timothy T. Wenzel, Mark Gregory Goode, John Henry Oskam, Robert J. Jorgensen, Robert Harold Vogel
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Publication number: 20030153695Abstract: A process for polymerizing monomers in the gas phase, in fluidized bed reactors is described, where unsaturated, gas phase monomers are fed into the reactors in the presence of a mixture of inert diluents having a composition that allows the dew point to be adjusted, this leading to high production rates under stable operation in a non condensed operation mode.Type: ApplicationFiled: September 10, 2002Publication date: August 14, 2003Inventors: Antonio Luiz Duarte Braganca, Antonio Luiz Ribeirio de Castro Morschbacker, Enio Rubbo, Cid Neto Miro, Tamara Barlem, Arj Mukherjee
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Publication number: 20030130447Abstract: The present invention provides a process for producing a polymer having a desired melt index. Pursuant to the process of the present invention an inorganic oxide sample is obtained and dried to a desired extent by controlling the drying conditions. The dried inorganic oxide sample is treated with an organoaluminoxide and a metallocene to form a metallocene catalyst system and contacted with an olefin under conditions supporting polymerization to form a polyolefin sample. The drying conditions are selected to produce an inorganic oxide sample capable of generating a metallocene catalyst system which produces polymer having the desired melt index.Type: ApplicationFiled: December 30, 1999Publication date: July 10, 2003Inventors: M BRUCE WELCH, DAVID W DOCKTER, SYRIAC J PALACKAL, BRYAN E HAUGER, GYANESH P KHARE
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Publication number: 20030130448Abstract: A process for making an ultra-high-molecular-weight polyethylene (UHMWPE) is disclosed. The process is performed with a supported quinolinoxy-containing single-site catalyst in the presence of a non-alumoxane activator, but in the absence of an &agr;-olefin, an aromatic solvent, and hydrogen. The process significantly increases the catalyst activity and the UHMWPE produced has improved tensile and impact properties.Type: ApplicationFiled: January 10, 2002Publication date: July 10, 2003Inventor: Jia-Chu Liu
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Patent number: 6590045Abstract: Catalysts for polymerization of &agr;-olefin, composed of a transition metal compound, an inorganic silicate or an ion exchangeable layer compound other than silicate, and optionally an organoaluminum compound, are described.Type: GrantFiled: October 1, 2001Date of Patent: July 8, 2003Assignee: Mitsubishi Chemical CorporationInventors: Toshihiko Sugano, Naoshi Iwama, Eiji Isobe, Toru Suzuki, Yasuo Maruyama
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Patent number: 6590055Abstract: This invention relates to olefin polymers particularly suited to satisfying the dielectric properties required in electrical device use. The olefin polymers can be prepared by contacting polymerizable olefin monomers with catalyst complexes of Group 3-11 metal cations and noncoordinating or weakly coordinating anion compounds bound directly to the surfaces of finely divided substrate particles or to polymer chains capable of effective suspension or solvation in polymerization solvents or diluents under solution polymerization conditions. Thus, the invention includes polyolefin products prepared by the invention processes, particularly ethylene-containing copolymers, having insignificant levels of mobile, negatively charged particles as detectable by Time of Flight SIMS.Type: GrantFiled: December 20, 2000Date of Patent: July 8, 2003Assignee: ExxonMobil Chemical Patents Inc.Inventor: Patrick Brant
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Patent number: 6586538Abstract: A novel process for producing homopolymers and interpolymers of olefins which involves contacting an olefin and/or an olefin and at least one or more other olefin(s) under polymerization conditions with a metallocene catalyst and dinitrogen monoxide in amounts sufficient to reduce the electrostatic charge in the polymerization medium. Also provided is a process for reducing electrostatic charge in the production of polyolefins by introducing dinitrogen monoxide into the polymerization medium.Type: GrantFiled: May 15, 2001Date of Patent: July 1, 2003Assignee: Eastman Chemical CompanyInventors: Randal Ray Ford, Jeffrey James Vanderbilt, Roxanna Lea Whitfield, Glenn Edward Moore
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Publication number: 20030119661Abstract: 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: ApplicationFiled: September 16, 2002Publication date: June 26, 2003Applicant: NOVA Chemicals (International) S.A.Inventors: Xiaoliang Gao, P. Scott Chisholm, Robert D. Donaldson, Ian McKay
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Patent number: 6583238Abstract: A catalyst system with at least one specifically substituted metallocene which contains a cationic group as a substituent, a process for preparing such a catalyst system and its use in the polymerization of olefins. In particular, said catalyst system has (a) at least one support, (b) at least one cocatalyst and (c) at least one metallocene of the formula where M1, R1, R2, R3, m, m′, A, k and X are defined herein.Type: GrantFiled: September 14, 2000Date of Patent: June 24, 2003Assignee: Basell Polyolefine GmbHInventors: Markus Göres, Hans Bohnen
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Patent number: 6583241Abstract: The present invention is directed to producing a resin which, when formed into a film, has excellent gas barrier and/or moisture barrier (low MVTR) properties. Further, the resin has a relatively high molecular weight distribution, preferably above 6, and has excellent processability/extrudability. The resin is produced using a cyclopentadienyl chromium compound, preferably a mono CpCr compound, on a support, preferably a silica support. A particularly preferred catalyst for use in the present invention comprises pentamethylcyclopentadienyidimethylchromiumpyridine. Preferably, the catalyst is used in a slurry polymerization process.Type: GrantFiled: March 15, 2001Date of Patent: June 24, 2003Assignee: Chevron Phillips Chemical Company LPInventors: David L. Beach, Charles D. Mills, Javier M. Mora, Mary A. Schexnayder, James A. Solis, Kevin J. Taylor
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Patent number: 6583237Abstract: An olefin polymer production method is provided by which olefin polymers can be obtained at high polymerization activity under the conditions of reduced hydrogen concentration. Silyl-terminated olefin polymers may be obtained by this method. The olefin is polymerized using a catalyst of a transition metal compound (A) of Groups 3 to 10 of the periodic table, at least one compound (B) selected from organoaluminum oxycompounds (B-1), compounds (B-2) that react with the abovementioned compound (A) to form an ion pair, and organoaluminum compounds (B-3), under the coexistence of an organosilicon compound (C) or dialkylzinc compound (D) and in the presence or absence of hydrogen (E).Type: GrantFiled: September 7, 2000Date of Patent: June 24, 2003Assignee: Mitsui Chemicals, Inc.Inventors: Jun-ichi Imuta, Tetsuhiro Matsumoto
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Patent number: 6583242Abstract: A supported olefin polymerization catalyst system and a method of making it are disclosed. The catalyst system comprises: (a) a support having mean particle size less than about 30 microns chemically treated with alumoxane; (b) an organometallic complex comprising a Group 3 to 10 transition or lanthanide metal, M, and at least one indenoindolyl ligand that is &pgr;-bonded to M; and (c) an activator. Chemical treatment with alumoxane and support mean particle size less than 30 microns are key to making supported indenoindolyl containing catalysts having high activity.Type: GrantFiled: August 2, 2001Date of Patent: June 24, 2003Assignee: Equistar Chemicals, LPInventors: Shaotian Wang, Norma J. Maraschin, Debra L. Beran, William J. Sartain
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Patent number: 6569966Abstract: Method of preparation of ethylene copolymers suitable for manufacturing films or pipes so characterized that for the initiation of polymerization of ethylene and 1-alkene monomer a substantially innovated catalyst system containing silyl chromate compound is used. The catalyst system, containing a high yield structure A, is prepared by a sequential interaction of the following components: a) a silyl chromate compound completely freed from water and oxygen prior to its contact with the porous support, b) a support containing a suitable type and optimum concentration of hydroxyl groups, and c) an alkylating agent, being a combination of organometal compounds of aluminum (RO)AlR2 and magnesium (R1MgR2), the ratios between the components in the catalyst vary in the following ranges: content of silyl chromate on the support varies from 0.05 to 0.35% of the support weight, ratio between the total amount of organometals (ORG) to silyl chromate (expressed in terms of ORG/Cr) varies between 0.Type: GrantFiled: January 30, 2001Date of Patent: May 27, 2003Assignee: Polymer Institute Brno, Spol. S.R.O. & Chemopetrol, A.S.Inventors: Pavel {haeck over (S)}indelá{haeck over (r)}, Martin Havránek, Zdenek Salajka, Pavel Pe{haeck over (s)}ta, Kv{haeck over (e)}toslava {haeck over (S)}t{haeck over (e)}pánková, Ladislav Jansa
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Publication number: 20030092858Abstract: Silica powders and mixed silica-oxide powders and methods of preparing such powders for use as catalyst supports for polymerization processes.Type: ApplicationFiled: February 27, 2002Publication date: May 15, 2003Inventors: Theresa A. Pecoraro, Ignatius Y. Chan, Darryl K. Whaley, Pamela R. Auburn
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Publication number: 20030092563Abstract: 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: ApplicationFiled: February 7, 2002Publication date: May 15, 2003Applicant: NOVA Chemicals (International) S.A.Inventors: Xiaoliang Gao, P. Scott Chisholm, Matthew Gerald Kowalchuk, Robert D. Donaldson
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Patent number: 6562920Abstract: This invention relates to olefin polymerization processes suitable for limiting or eliminating aromatic solvents or diluents. The invention processes can be conducted by contacting polymerizable olefin monomers with catalyst complexes of Group 3-11 metal cations and noncoordinating or weakly coordinating anions bound directly to the surfaces of finely divided substrate particles or to polymer chains capable of effective suspension or solvation in polymerization solvents or diluents under polymerization conditions. These processes minimize problems associated with using largely insoluble organometallic or organometalloid catalysts and cocatalysts in aliphatic, solution, or diluent polymerization processes.Type: GrantFiled: December 20, 2000Date of Patent: May 13, 2003Assignee: ExxonMobil Chemical Patents Inc.Inventor: Patrick Brant
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Patent number: 6562918Abstract: A catalyst for olefin polymerization, which is obtained by contacting (A) a compound of a transition metal of Groups 4 to 6 of the Periodic Table, (B) an organoaluminiumoxy compound, and optionally (C) a carrier with each other, and for which they are exposed to elastic waves at least in any step of contacting them with each other. Preferably, the elastic waves are ultrasonic waves falling between 1 and 1000 kHz. Provided are high-activity metallocene catalysts for olefin polymerization. As having high polymerization activity, they are favorable to vapor-phase or slurry polymerization for producing olefinic polymers.Type: GrantFiled: October 4, 2000Date of Patent: May 13, 2003Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Yutaka Minami, Masami Kanamaru
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Patent number: 6559251Abstract: A process for making ethylene copolymers is disclosed. Ethylene copolymerizes with an &agr;-olefin in the presence of a catalyst system comprising an activator and a silica-supported, bridged indenoindolyl metal complex having “open architecture.” The supported complex incorporates comonomers with exceptional efficiency, and the process gives ethylene copolymers having high molecular weights (Mw>100K) and very low densities (<0.910 g/cm3). Open architecture catalysts that include bridging through the indolyl nitrogen of the indenoindolyl framework are also described.Type: GrantFiled: August 2, 2002Date of Patent: May 6, 2003Assignee: Equistar Chemicals, LPInventors: Shaotian Wang, Clifford C. Lee, Mark P. Mack, Gregory G. Hlatky, Sandor Nagy, Barbara M. Tsuie
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Patent number: 6555632Abstract: Process for the preparation of a catalytic system according to which a mixture of a halogenated neutral metallocene derived from a transition metal chosen from groups IIIB, IVB, VB and VIB of the Periodic Table and of an organoaluminium compound is prepared and an ionising agent is added thereto. (Co)polymerisation process according to which a mixture of a halogenated neutral metallocene as defined above and of an organoaluminium compound is prepared, the olefin is brought into contact with this mixture and an ionising agent is added thereto.Type: GrantFiled: July 8, 1998Date of Patent: April 29, 2003Assignee: Solvay Polyolefins Europe-Belgium (Societe Anonyme)Inventor: Nicola Zandona
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Patent number: 6555495Abstract: This invention relates to a method to support one or more catalyst compounds comprising contacting the catalyst compounds with a pretreatment agent comprising an aluminum alkyl and or an alumoxane in solution and thereafter contacting the combination with a supported activator.Type: GrantFiled: December 6, 2000Date of Patent: April 29, 2003Assignee: Univation Technologies, LLCInventors: Thomas Henry Peterson, Eric Lucas
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Patent number: 6551957Abstract: The present invention relates to a catalyst composition and a method for making the catalyst composition of a polymerization catalyst and a carbonyl compound. 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: November 9, 2000Date of Patent: April 22, 2003Assignee: Univation Technologies, LLCInventor: Timothy T. Wenzel
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Patent number: 6552138Abstract: A resin which is an ethylene/&agr;-olefin copolymer comprising ethylene and an &agr;-olefin having 3 to 12 carbon atoms exhibiting particular physical properties including a narrow molecular weight distribution, and which is suitable for flexible sealed containers showing excellent flexibility, unstickiness and excellent slip properties, and flexible sealed containers therefrom.Type: GrantFiled: December 15, 2000Date of Patent: April 22, 2003Assignee: Mitsui Chemicals, Inc.Inventor: Tomohiko Kimura
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Patent number: 6552210Abstract: Specifically substituted metallocenes can be used in the polymerization of olefins. The novel compounds contain a cationic group as substituents and are suitable as constituents of a catalyst system for the polymerization of olefins.Type: GrantFiled: September 7, 2000Date of Patent: April 22, 2003Assignee: Targor GmbHInventors: Markus Göres, Hans Bohnen
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Patent number: 6548442Abstract: This invention is directed to an organometal compound catalyst that is useful for polymerizing at least one monomer to produce a polymer. The catalyst is produced by combining a titanium, zirconium or hafnium organometal compound, preferably a metallocene, at least one organoaluminum compound, and a treated solid oxide. The treated solid oxide compound contains at least one halogen, zirconium and a solid oxide compound.Type: GrantFiled: December 3, 1999Date of Patent: April 15, 2003Assignee: Phillips Petroleum CompanyInventors: Max P. McDaniel, Kathy S. Collins, Gil R. Hawley, Michael D. Jensen, Elizabeth A. Benham, Anthony P. Eaton, Joel L. Martin, Christopher E. Wittner
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Publication number: 20030065112Abstract: High melt index polyolefins have been obtained with chromium silica catalysts under conventional polymerization conditions without the use of titanium or other additives. The useful chromium silica catalysts have a pore volume in the range of 1.9-2.9 cc/g and a narrow pore size distribution. The silica is a silica gel preferably obtained from a low solids, rapid gelation process.Type: ApplicationFiled: October 31, 2002Publication date: April 3, 2003Inventors: Rimantas Glemza, Dean A. Denton
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Publication number: 20030060582Abstract: Silica powders and mixed silica-oxide powders and methods of preparing such powders for use as catalyst supports for polymerization processes.Type: ApplicationFiled: February 27, 2002Publication date: March 27, 2003Inventors: Theresa A. Percoraro, Ignatius Y. Chan, Darryl K. Whaley, Pamela R. Auburn
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Patent number: 6538077Abstract: A novel magnesium treated silica-containing compound that is useful as a support for chromium based olefin polymerization catalyst systems is provided which produces ethylene polymers having with MWD's that promote good properties particularly in HMW film applications.Type: GrantFiled: November 4, 1999Date of Patent: March 25, 2003Assignee: Phillips Petroleum CompanyInventors: Joseph S. Shveima, Max P. McDaniel, Shirley J. Martin, Kathy S. Collins, Elizabeth A. Benham, Anthony P. Eaton, Ashish M. Sukhadia
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Patent number: 6537943Abstract: The invention relates to a catalyst system composed of metallocenes comprising substituents containing fluorine, a method for producing said system and its use for the polymerization of olefins.Type: GrantFiled: October 11, 2000Date of Patent: March 25, 2003Assignee: Targor GmbHInventors: Cornelia Fritze, Gerhard Erker, Johannes Ruwwe
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Patent number: 6538080Abstract: A gas phase fluidized bed process is described for producing ethylene polymers having improved processability and an MWD of less than about 2.9. Multiple reactors in series or parallel may be used to produce in-situ blended polymers. Each reactor can separately have a constrained geometry catalyst or a conventional Ziegler-Natta catalyst as needed for obtaining in-situ blended polymer with the desired properties as long as there is a constrained geometry catalyst in at least one reactor. Olefin polymers can be produced according to this invention which have low susceptibility to melt fracture, even under high shear stress conditions.Type: GrantFiled: February 4, 2000Date of Patent: March 25, 2003Assignee: BP Chemicals LimitedInventors: Robert D. Swindoll, Bruce A. Story, Brian W. S. Kolthammer, Kevin P. Peil, David R. Wilson, James C. Stevens
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Patent number: 6533988Abstract: Rotational moulding process for polymerizing or copolmerizing ethylene for manufacturing ethylene polymers or copolymers having a controlled particle size and morphology. Ethylene is polymerized or copolymerized under ethylene polymerizing conditions in the presence of a supported metallocene catalyst, where the average particle size of the catalyst particles is selected within the range of 14-40 &mgr;m and the residence time at the polymerization is selected so as to achieve a polymer where average particle size is between 0.2-0.5 mm and the proportion of fractions between 0.1-0.6 is at least 80%.Type: GrantFiled: December 5, 2000Date of Patent: March 18, 2003Assignee: Borealis Technology OyInventors: Kalle Kallio, Ulf Palmovist, Hilkka Knuuttila, Anne Marie Fatnes
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Publication number: 20030050413Abstract: A supported olefin polymerization catalyst system and a method of making it are disclosed. The catalyst system comprises: (a) a support having mean particle size less than about 30 microns chemically treated with alumoxane; (b) an organometallic complex comprising a Group 3 to 10 transition or lanthanide metal, M, and at least one indenoindolyl ligand that is &pgr;-bonded to M; and (c) an activator. Chemical treatment with alumoxane and support mean particle size less than 30 microns are key to making supported indenoindolyl containing catalysts having high activity.Type: ApplicationFiled: August 2, 2001Publication date: March 13, 2003Inventors: Shaotian Wang, Norma J. Maraschin, Debra L. Beran, William J. Sartain