Utilizing High Molecular Weight Synthetic Polymer Patents (Class 502/109)
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Patent number: 11325927Abstract: An activated, titanium-based, spray-dried Ziegler-Natta catalyst system containing a titanium-based Ziegler-Natta catalyst, a carrier material, and an activator mixture comprising an effective amount of an activator mixture comprising triethylaluminum and diethylaluminum chloride for producing a substantially uniform comonomer composition distribution. Also, polyolefins; methods of making and using same; and articles containing same.Type: GrantFiled: December 3, 2018Date of Patent: May 10, 2022Assignee: UNIVATION TECHNOLOGIES, LLCInventors: Wesley R. Mariott, C. Dale Lester, Nitin Borse
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Patent number: 10654956Abstract: The present disclosure generally relates to ethylene alpha-olefin copolymers and methods of making ethylene alpha-olefin copolymers. The ethylene alpha-olefin copolymers may have a density of about 0.915 g/mL to about 0.918 g/mL, a rheological polydispersity index greater than 0.8, a melt index of about 0.4 dg/10 min to about 2.0 dg/10 min, and/or a CEF T50 of 84° C. or less. The ethylene alpha-olefin copolymers may be made by combining an ethylene monomer and one or more alpha-olefin monomers in the presence of a catalyst, such as a Ziegler-Natta catalyst.Type: GrantFiled: April 25, 2018Date of Patent: May 19, 2020Assignee: Equistar Chemicals, LPInventors: Harilaos Mavridis, Roberta Pica, Pietro Baita, Gabriele Mei, Massimo Covezzi
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Patent number: 9200093Abstract: An object of the present invention is to provide a method which can simply suppress fouling in a reactor and, according to the present invention, there is provided a method of polymerizing addition polymerizable monomers using a catalyst formed by bringing (A) a transition metal compound represented by the following general formula [3] or ?-oxo type transition metal compound dimer thereof and (B) an activating agent into contact with one another, the method comprising polymerizing addition polymerizable monomers in a solvent to which a surfactant-containing particle obtained by mixing a particle composed of an inorganic compound or an organic polymer, and at least one surfactant selected from the group consisting of a compound represented by the following general formula [1] and a compound represented by general formula [2] has been added. R1—O—(—R2—O—)m-Q1??[1] R1?C(?O)NR52??[2] L1aM2X1b??[3].Type: GrantFiled: December 6, 2012Date of Patent: December 1, 2015Assignee: Sumitomo Chemical Company, LimitedInventors: Naoko Ochi, Shinyo Tamura
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Publication number: 20140364576Abstract: Disclosed is a supported nonmetallocene catalyst and preparation thereof. The supported nonmetallocene catalyst is characterized by a high catalyst activity for olefin polymerization and a significant monomer effect. Further disclosed is use of the supported nonmetallocene catalyst in olefin homopolymerization/copolymerization. The polymer produced therewith is characterized by superior particle morphology, a high bulk density, and/or a narrow molecular weight distribution.Type: ApplicationFiled: June 9, 2014Publication date: December 11, 2014Applicants: SINOPEC YANGZI PETROCHEMICAL COMPANY LTD., CHINA PETROLEUM & CHEMICAL CORPORATIONInventors: Chuanfeng LI, Hongping REN, Lin KAN, Feng GUO, Wenrui WANG, Yuming YI, Shaohui CHEN, Jiye BAI
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Patent number: 8791042Abstract: Process for the preparation of an unsupported, heterogeneous olefin polymerization catalyst system, comprising an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC 2007) in the form of solid particles comprising the steps of a) preparing a solution (A) comprising ai) an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC 2007) or of an actinide or lanthanide, a2) a cocatalyst comprising an element of group 13 of the Periodic Table (IUPAC 2007) and a3) a solvent (A-1), b) preparing a liquid/liquid emulsion system by dispersing the solution (A) in a solvent (B) essentially immiscible with said solution (A) in the presence of a polystyrene-b-fluoro polystyrene copolymer of the formula (I) in which n is a number from 10 to 100, m is a number from 1 to 40, x is a number from 5 to 16, y is a number from 11 to 33, provided that m, n, x and y are selected in a way that the block copolymer is soluble in the solvent B or the solution A inType: GrantFiled: December 3, 2010Date of Patent: July 29, 2014Assignee: Borealis AGInventors: Nicolas Ronan, Peter Denifl
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Patent number: 8765627Abstract: The present invention relates to a catalyst system, to a method of manufacturing this system, and also to uses of this system. The catalyst system of the invention is characterized in that it comprises molecules of a polymer having, at one of its ends or along the chain, one or more polar functional groups; a solvent, said solvent, due to the fact of said polar functional group of said polymer, provoking and maintaining, when said molecules of the polymer are introduced thereinto, an organization of said molecules of the polymer into aggregates, micelles or vesicles so that the polar functional groups of said polymer are located inside the aggregates, micelles or vesicles formed; and a catalyst activator and a catalyst trapped in said aggregates, micelles or vesicles of said polymer. The catalyst system of the present invention may be used, for example, for catalyzing a (co)polymerization of olefins.Type: GrantFiled: June 12, 2008Date of Patent: July 1, 2014Assignee: Centre National de la Recherche Scientifique—CNRSInventors: Henri Cramail, Cécile Bouilhac, Eric Cloutet, Daniel Taton, Alain Deffieux
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Publication number: 20140046011Abstract: Process for the preparation of solid particles of a magnesium-chloride alcohol adduct comprising (a) forming an emulsion between a MgCl2 alcohol adduct in molten form and a liquid phase which is immiscible with the said adduct in the presence of a polyalkyl-methacrylate used as a solution having viscosity ranging from 100 to 5000 mm2/s and (b) rapidly cooling the emulsion to solidify the disperse phase and collecting the solid adduct particles.Type: ApplicationFiled: April 13, 2012Publication date: February 13, 2014Applicant: Basell Poliolefine Italia S. r. I.Inventors: Benedetta Gaddi, Daniele Evangelisti, Gianni Collina
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Patent number: 8431659Abstract: A method of producing a prepolymerized catalyst for olefin polymerization comprising a fine powder removal step of removing fine particles from olefin-prepolymerized catalyst particles for olefin polymerization. The prepolymerized catalyst having a low fine particle content is applicable suitably to the field of continuous polymerization of olefins.Type: GrantFiled: December 6, 2011Date of Patent: April 30, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Tomoaki Goto, Yoshimitsu Onodera
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Publication number: 20120309913Abstract: Process for the preparation of an unsupported, heterogeneous olefin polymerization catalyst system, comprising an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC 2007) in the form of solid particles comprising the steps of a) preparing a solution (A) comprising ai) an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC 2007) or of an actinide or lanthanide, a2) a cocatalyst comprising an element of group 13 of the Periodic Table (IUPAC 2007) and a3) a solvent (A-1), b) preparing a liquid/liquid emulsion system by dispersing the solution (A) in a solvent (B) essentially immiscible with said solution (A) in the presence of a polystyrene-b-fluoro polystyrene copolymer of the formula (I) in which n is a number from 10 to 100, m is a number from 1 to 40, x is a number from 5 to 16, y is a number from 11 to 33, provided that m, n, x and y are selected in a way that the block copolymer is soluble in the solvent B or the solution A inType: ApplicationFiled: December 3, 2010Publication date: December 6, 2012Inventors: Nicolas Ronan, Peter Denifl
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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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Patent number: 8193288Abstract: This invention relates to a supported nonmetallocene catalyst for olefin polymerization, which is produced by directly reacting a nonmetallocene ligand with a catalytically active metallic compound on a carrier through an in-situ supporting process. The process according to this invention is simple and feasible, and it is easy to adjust the load of the nonmetallocene ligand on the porous carrier. The supported nonmetallocene catalyst according to this invention can be used for olefin homopolymerization/copolymerization, even in combination with a comparatively less amount of the co-catalyst, to achieve a comparatively high polymerization activity. Further, the polymer product obtained therewith boasts desirable polymer morphology and a high bulk density.Type: GrantFiled: October 15, 2008Date of Patent: June 5, 2012Assignee: Sinopec Yangzi Petro-Chemical Ltd.Inventors: Yuefeng Gu, Chuanfeng Li, Xiaoli Yao, Zhonglin Ma, Bo Liu, Feng Guo, Yaming Wang, Jiye Bai, Shaohui Chen, Xiaoqiang Li
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Patent number: 8173569Abstract: 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: GrantFiled: June 24, 2005Date of Patent: May 8, 2012Assignee: Union Carbide Chemicals & Plastics Technology LLCInventors: Robert J. Jorgensen, Michael A. Kinnan, Michael D. Turner, Stephanie M. Whited, Laszlo L. Ban, Burkhard E. Wagner
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Patent number: 8133832Abstract: The present invention relates to new catalyst supports comprising nanofibers, a catalyst system comprising these supports as well as a process for preparing nanocomposites and the nanocomposites prepared. The invention especially concerns a supported catalyst system for polymerization of olefins, comprising a support made of fibers or a fleece of fibers, wherein the mean fiber diameter is less than 1000 nm, preferably less than 500 nm and the mean fiber length is more than 200,000 nm, preferably more than 500,000 nm and especially preferred more than 1,000,000 nm as well as a process for polymerizing olefinic systems in the presence of these catalyst systems and the resulting nanocomposites.Type: GrantFiled: July 22, 2008Date of Patent: March 13, 2012Assignee: Basell Polyolefine GmbHInventors: Marc Oliver Kristen, Rolf Mülhaupt, Georg Müller
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Patent number: 8101537Abstract: A method of producing a prepolymerized catalyst for olefin polymerization comprising a fine powder removal step of removing fine particles from olefin-prepolymerized catalyst particles for olefin polymerization. The prepolymerized catalyst having a low fine particle content is applicable suitably to the field of continuous polymerization of olefins.Type: GrantFiled: February 25, 2010Date of Patent: January 24, 2012Assignee: Sumitomo Chemical Company, LimitedInventors: Tomoaki Goto, Yoshimitsu Onodera
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Publication number: 20110098428Abstract: The invention refers to a process for preparing a Group 2 metal/transition metal olefin polymerization catalyst component in particulate form having improved polymerization properties due to the use of H2 during catalyst component preparation and the use of such catalyst components in a process for polymerizing olefins.Type: ApplicationFiled: June 22, 2009Publication date: April 28, 2011Applicant: Borealis AGInventors: Timo Leinonen, Peter Denifl, Anssi Haikarainen
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Patent number: 7833933Abstract: A process for preparation of a paraffin isomerization catalyst comprising a mixture of a Group IVB metal oxide, a Group VIB metal oxide, a Group IIIA metal oxide and a Group VIII metal. The process includes the steps of: a) contacting a hydroxide of the Group IVB metal with an aqueous solution of an oxyanion of the Group VIB metal to provide a mixture, (b) drying the mixture to provide a dry powder, (c) kneading the powder with a Group IIIA hydroxide gel and a polymeric cellulose ether compound to form a paste, (d) shaping the paste to form a shaped material, (e) calcining the shaped material to form a calcined material, (f) impregnating the calcined material with an aqueous solution of a Group VIII metal salt to provide the catalyst, and (g) calcining the catalyst.Type: GrantFiled: July 14, 2006Date of Patent: November 16, 2010Assignee: Haldor Topsøe A/SInventors: Konrad Herbst, Peter Stern, Niels Jørgen Blom, Glen Starch-Hytoft, Kim Grøn Knudsen
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Patent number: 7754647Abstract: The present invention provides a process for preparing a supported catalyst (catalyst C) having a support (support S) selected from among oxides, phosphates, silicates, carbides, borides and nitrides of main group elements and elements of transition groups VI and II and mixtures of the abovementioned compounds and an active component (activator A) comprising one or more compounds containing one or more elements of transition groups V, VI and VII customary for the catalysis of metathesis reactions.Type: GrantFiled: April 4, 2008Date of Patent: July 13, 2010Assignee: Basf AktiengesellschaftInventors: Markus Schubert, Michael Hesse, Juergen Stephan, Volker Boehm, Andreas Brodhagen, Frank Poplow, Martina Sinner-Lang, Uwe Diehlmann, Gerhard Cox, Jochen Pfeifer
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Patent number: 7645843Abstract: Olefins are polymerised in the presence of a solid catalyst component and optionally a cocatalyst. The solid catalyst component is introduced into the polymerisation reactor by suspending the solid component into oil having a viscosity of from 20 to 1500 mPa s. Optionally, the suspension comprises a drag reduction agent dissolved in the oil. The suspension is metered into the polymerisation reactor by using a valveless piston pump.Type: GrantFiled: December 12, 2005Date of Patent: January 12, 2010Assignee: Borealis Technology OyInventors: Erno Elovainio, Marianne Vuorikari, Esa Korhonen, Pauli Leskinen
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Publication number: 20090305875Abstract: The invention refers to a process for preparing a Group 2 metal/transition metal olefin polymerization catalyst component in particulate form having an improved high temperature activity and the use thereof in a process for polymerising olefins.Type: ApplicationFiled: May 31, 2007Publication date: December 10, 2009Applicant: BOREALIS TECHNOLOGY OYInventors: Peter Denifl, Timo Leinonen
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Patent number: 7612008Abstract: The invention relates to polymeric transition metal catalysts, to processes for preparing them, to intermediates and also to the use of the transition metal catalysts as catalysts in organic reactions, in particular in olefin metathesis reactions.Type: GrantFiled: July 28, 2003Date of Patent: November 3, 2009Assignee: LANXESS Deutschland GmbHInventors: Siegfried Blechert, Stephen Connon
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Patent number: 7592285Abstract: The present invention provides for a method for preparing a storable fluidic olefin polymerisation catalyst composition, said catalyst comprising an organometallic compound of a transition metal of Group 3 to 10 of the Periodic Table (IUPAC), or of an actinide or lanthanide, and the use of such composition for polymerising ?-olefins.Type: GrantFiled: June 7, 2004Date of Patent: September 22, 2009Assignee: Borealis Technology OYInventors: Petri Rekonen, Pauli Leskinen
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Patent number: 7528090Abstract: A supported polymerisation catalyst system comprises a porous support, a polymerisation catalyst and a cocatalyst wherein the support has been treated with an inert material such as polyisobutene. The support is preferably silica and is preferably treated with the inert material prior to contact with the other components. Preferably the polymerisation catalyst is a metallocene and the polymerisation catalyst system reduces the initial peak isotherm allowing for a smoother activity increase in particular for polymerisations carried out in the gas phase.Type: GrantFiled: August 4, 2004Date of Patent: May 5, 2009Assignee: Ineos Europe LimitedInventors: Grant Berent Jacobsen, Brian Stephen Kimberley, Sergio Mastroianni
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Patent number: 7300901Abstract: The present invention discloses a method for preparing hollow beads of polyethylene of controlled morphology and size.Type: GrantFiled: April 7, 2004Date of Patent: November 27, 2007Assignee: Total Petrochemicals Research FeluyInventors: Olivier Lavastre, Laurent Gallard
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Patent number: 7271119Abstract: Process for preparing an olefin polymerisation catalyst component in the form of particles having a predetermined size range, said process comprising the steps of a) preparing a solution of a complex of a Group 2 metal and an electron donor by reacting a compound of said metal with said electron donor or a precursor thereof in an organic liquid reaction medium; b) adding said solution of said complex to at least one compound of a transition material to produce an emulsion, the dispersed phase of which contains more than 50 mol % of the Group 2 metal in said complex; c) agitating the emulsion, optionally in the presence of an emulsion stabilizer, in order to maintain the droplets of said dispersed phase within the average size range 5 to 200 m; d) solidifying said droplets of the dispersed phase; and e) recovering the solidified particles of the olefin polymerisation catalyst component, wherein a turbulence minimizing agent (TMA) is added to the reaction mixture before solidifying said droplets of the disperseType: GrantFiled: June 18, 2002Date of Patent: September 18, 2007Assignee: Borealis Technology OyInventors: Peter Denifl, Timo Leinonen
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Patent number: 7084220Abstract: The present invention relates to a catalyst system for preparing styrene polymer and a method of preparing styrene polymer using the same, more particularly to a catalyst system for preparing styrene polymer capable of preventing coagulation of polymer to the reactor by preventing gelation, offering high conversion ratio, simplifying polymer production and enabling product size control, and a method of preparing styrene polymer using the same.Type: GrantFiled: February 5, 2004Date of Patent: August 1, 2006Assignee: LG Chem, Ltd.Inventors: Moo-Ho Hong, Boo-Gon Woo, Young-Suk Son
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Patent number: 7084216Abstract: The present invention relates to a process for homopolymerization of ethylene or copolymerization of ethylene with alpha-olefins by contacting ethylene or ethylene and alpha-olefin with a catalyst composition comprising: (a) a solid catalyst precursor comprising at least one vanadium compound, at least one magnesium compound and a polymeric material or a solid catalyst precursor comprising at least one vanadium compound, at least one further transition metal compound and/or at least one alcohol, at least one magnesium compound and a polymeric material; and (b) a cocatalyst comprising an aluminum compound.Type: GrantFiled: January 30, 2002Date of Patent: August 1, 2006Assignee: Saudi Basic Industries CorporationInventors: Akhlaq A. Moman, Khalid Al-Bahily, Atieh Abu-Raqabah, John Ledford, Orass M. Hamed, Raju Raghavan, Sameh Rizkallah
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Patent number: 7074736Abstract: A hydrozirconated matrix for the production of polyolefins is disclosed. The hydrozirconated matrix is prepared from the reaction of an organozirconium composition and an olefin based material. A process is described for using the hydrozirconated matrix to prepare a range of polyolefin products.Type: GrantFiled: October 9, 2001Date of Patent: July 11, 2006Assignee: Rohm and Haas CompanyInventors: Eric Gustave Lundquist, Jennifer Annette Reichl, James Charles Bohling
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Patent number: 7022793Abstract: A process for the preparation of heterophasic elastomeric polymer comprising the step of polymerizing ethylene, an alpha-olefin CH2?CHL, where L is an alkyl, cycloalkyl or aryl radical with 1–10 carbon atoms and a non-conjugated diene in the presence of a catalyst system comprising a transition metal catalyst component supported on a porous alpha-olefin polymer, characterized in that at least part of the diene is impregnated on the porous alpha-olefin polymer.Type: GrantFiled: November 22, 2002Date of Patent: April 4, 2006Assignee: Basell Polyolefine GmbHInventors: Maurizio Galimberti, Angelo Ferraro, Giovanni Baruzzi, Ofelia Fusco
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Patent number: 7009012Abstract: The present invention provides a supported catalyst comprising (A) a polymer (B) a supporter, (C) a transition metal compound, and optionally (D) (a) a compound which can form an ionic complex by the reaction with the transition metal compound or (b) a specific oxygen-containing compound, and (E) an alkylaluminum compound. The supported catalyst according to present invention, which has a high activity, can be used for preparing a styrenic polymer with a high syndiotacticity. The supported catalyst can be used in combination with a cocatalyst, preferably an alkyl aluminoxane.Type: GrantFiled: December 18, 2000Date of Patent: March 7, 2006Assignee: Samsung Atofina Co. Ltd.Inventors: Sung Cheol Yoon, Xuequan Zhang, Jae Gon Lim, Hyun Joon Kim, Young Sub Lee
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Patent number: 7005398Abstract: A catalyst is used which comprises a cocatalyst component wherein a non-coordinating ion-containing compound is chemically bonded to a fine particulate carrier, together with a metallocene compound and a specific hydrocarbon. There are provided an olefin polymerization catalyst which produces olefin polymers containing few solvent-soluble components without a wider molecular weight distribution, and which exhibits no significant reduction in activity even after storage, as well as olefin polymerization catalyst components and a method for their storage, and a process for production of propylene polymers using them.Type: GrantFiled: December 19, 2001Date of Patent: February 28, 2006Assignee: SunAllomer Ltd.Inventors: Satoru Ishigaki, Shinji Hinokuma
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Patent number: 6992153Abstract: Multi-stage process for the polymerization of olefins CH2?CHR, where R is hydrogen or a C1–C10 alkyl, cycloalkyl or aryl radical, comprising: (I) a first polymerization stage carried out in the presence of a catalyst comprising the product of the reaction between an alkyl-Al compound and a solid component comprising at least one compound of transition metal M1 not containing M1-? bonds, thus obtaining a porous polymer, (II) a treatment stage, wherein said porous polymer is contacted with a compound capable of deactivating the catalyst used in stage (I) and with a late transition metal complex; and (III) a second stage of polymerization, carried out in the presence of the product obtained from treatment stage (II).Type: GrantFiled: March 6, 2000Date of Patent: January 31, 2006Assignees: Basell Polyolefine GmbH, E.I. du Pont de Nemours and CompanyInventors: Gianni Collina, Edward Bryan Coughlin, Giuliano Cecchin, Giovanni Baruzzi, Anna Fait
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Patent number: 6969747Abstract: An olefin polymerization titanium catalyst. It comprises a titanium compound and an organoaluminium compound cocatalyst supported on a soluble polysulfone comprising free reactive sulfone groups. The molar ratio of titanium of aluminum is 1–10:200 and the weight ratio of titanium to polysulfone is 0.01–0.1:0.3–2.5. The process for preparing the catalyst comprises preparing a supported titanium compound by contacting a solution of a polysulfone in a halogenated or polar solvent with a titanium compound or a solution thereof in a halogenated or polar solvent in an inert atmosphere at a temperature between 10° C. and the boiling point of the solvent such that the weight ratio of titanium to polysulfone is 0.01–0.1:0.3–2.5. The supported titanium compound is mixed with an organoaluminium cocatalyst such that the molar ratio of titanium to aluminum is 1–10:200.Type: GrantFiled: January 25, 2002Date of Patent: November 29, 2005Assignee: Reliance Industries LimitedInventors: Sumit Bhaduri, Virendra Kumar Gupta
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Patent number: 6916761Abstract: In order to provide a novel Lewis acid catalyst, which shows high reaction activity in aqueous medium, is easily recovered, and is excellent in reusability, a Lewis acid group expressed by the general formula (I): MXn??(I) (wherein M represents a polyvalent element, X represents an anionic group, and n is an integer representing the valence of M) is linked and supported on a polymer membrane via an SO3 or SO4 group.Type: GrantFiled: October 23, 2000Date of Patent: July 12, 2005Assignee: Japan Science and Technology CorporationInventor: Shu Kobayashi
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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: 6878787Abstract: Supported stereospecific catalysts and processes for the stereotactic propagation of a polymer chain derived from ethylenically unsaturated monomers such as the polymerization of propylene to produce syndiotactic polypropylene or isotactic polypropylene. The supported catalyst comprises a stereospecific metallocene catalyst component and a co-catalyst component comprising an alkylalumoxane. Both the metallocene catalyst component and the co-catalyst component are supported on a particulate polyamide support comprising spheroidical particles of a polyamide having an average diameter with the range of 5-60 microns, and a porosity permitting distribution of a portion of the co-catalyst within the pore volume of the polyamide particles while retaining a substantial portion on the surface of the particles. The polyamide support is characterized by relatively low surface area, specifically a surface area less than 20 square meters per gram.Type: GrantFiled: August 26, 2003Date of Patent: April 12, 2005Assignee: Fina Technology, Inc.Inventors: David John Rauscher, William John Gauthier, Shady Nader Henry, Kai Hortmann
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Patent number: 6815390Abstract: The present invention relates to a new catalyst system for fluorous biphasic catalysis processes which comprises functionalized polymeric beads, monodisperse SiO2 or SiO2 flakes associated with the catalyst. These functionalized particles are used as a support for catalysts in fluorous biphasic catalysis (FBC).Type: GrantFiled: January 9, 2003Date of Patent: November 9, 2004Assignee: Merck Patent GmbHInventors: Julian F. S. Vaughan, Martin G. Pellatt, James Sherrington, Eric George Hope
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Patent number: 6803339Abstract: A metallocene catalyst may be temporarily and reversibly passivated by contact with an effective amount of an unsaturated hydrocarbon passivating compound.Type: GrantFiled: September 12, 2002Date of Patent: October 12, 2004Assignee: BP Corporation North America Inc.Inventors: Richard A. Hall, Jerome A. Streeky, Roger Uhrhammer
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Patent number: 6750170Abstract: Single site catalysts which contain a transition metal, a cyclopentadienyl may be activated with alumoxanes in the gas, solution or group-containing ligand, and a phosphinimine ligand slurry phase polymerization of olefin. Alumoxanes contain residual aluminum alkyls which may poison the catalysts. The residual aluminum alkyls may be bound and/or removed from the alumoxanes by treatment with carbohydrates such as cellulose, starch or sugar.Type: GrantFiled: December 4, 2001Date of Patent: June 15, 2004Assignee: Nova Chemicals (International) S.A.Inventors: Peter Phung Minh Hoang, Dusan Jeremic, Jason Roy Kearns, Iain McLaren Coulter, Robert D. Donaldson
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Patent number: 6750303Abstract: Functional polymers containing hydroxyl groups as supports for use with catalysts can increase the activity of these catalysts which results in improved ethylene polymerization. The present invention seeks to provide catalysts with improved activity by incorporating 2-hydroxyethyl methacrylate (HEMA) into the support of the catalyst.Type: GrantFiled: April 30, 2003Date of Patent: June 15, 2004Assignee: The Governors of the University of AlbertaInventors: Peter Phung Minh Hoang, Charles Russell, Jason Roy Kearns, Sieghard E. Wanke, David T. Lynch, Nai-Hong Li
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Patent number: 6743873Abstract: A catalyst composition useful for catalyzing the polymerization of olefinic monomers is disclosed, along with a polymerization method using those catalyst compositions to prepare a variety of polyolefins from olefinic monomers. A method for preparation of the catalyst composition by combining an epoxy functional porous organic polymer, a catalytic component, and an activator component is also disclosed.Type: GrantFiled: May 7, 2003Date of Patent: June 1, 2004Assignee: Rohm and Haas CompanyInventors: Thomas Cleveland Kirk, Eric Gustave Lundquist, Timothy Roger Lynn
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Patent number: 6730753Abstract: Catalyst systems of the Ziegler-Natta type, which are suitable for the polymerization of olefins are prepared by: A) bringing an inorganic metal oxide on which a magnesium compound has been deposited into contact with a tetravalent titanium compound, B) if desired, bringing the intermediate obtained in this way into contact with an electron donor compound and C) bringing the intermediate obtained in step A) or B) into contact with a polysiloxane.Type: GrantFiled: August 28, 2001Date of Patent: May 4, 2004Assignee: Basell Polyolefine GmbHInventors: Klaus Föttinger, Stephan Hüffer, Rainer Karer
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Patent number: 6723881Abstract: Monodisperse cation-exchangers and anon-exchangers are conditioned by a process and thereafter used as catalysts and for the production of bisphenols.Type: GrantFiled: August 28, 2002Date of Patent: April 20, 2004Assignee: Bayer AktiengesellschaftInventors: Michael Bödiger, Rainer Neumann, Frieder Heydenreich, Michael Prein, Gerhard Fennhoff, Ulrich Schnegg, Rudolf Wagner, Wolfgang Wambach, Reinhold Klipper
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Publication number: 20040054102Abstract: A catalyst is used which comprises a cocatalyst component wherein a non-coordinating ion-containing compound is chemically bonded to a fine particulate carrier, together with a metallocene compound and a specific hydrocarbon. There are provided an olefin polymerization catalyst which produces olefin polymers containing few solvent-soluble components without a wider molecular weight distribution, and which exhibits no significant reduction in activity even after storage, as well as olefin polymerization catalyst components and a method for their storage, and a process for production of propylene polymers using them.Type: ApplicationFiled: June 18, 2003Publication date: March 18, 2004Inventors: Satoru Ishigaki, Shinji Hinokuma
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Patent number: 6703458Abstract: Spherical catalyst components for the polymerization of olefins of formula RCH═CHR, in which R is, independently, hydrogen or a hydrocarbon group with 1-10 carbon atoms, containing a homogeneous transition metal compound of formula MPx, in which M is a transition metal M of Groups 3 to 11 or the lanthanide or actinide Groups of the Periodic Table of the Elements (new IUPAC version); P is a ligand that is coordinated to the metal M and x is the valence of the metal M. The transition metal compound is dispersed in a solid hydrocarbon matrix having a melting point above 70° C.Type: GrantFiled: July 24, 2002Date of Patent: March 9, 2004Assignee: Basell Polyolefine GmbHInventor: Anna Fait
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Publication number: 20030199389Abstract: Functional polymers containing hydroxyl groups as supports for use with catalysts can increase the activity of these catalysts which results in improved ethylene polymerization. The present invention seeks to provide catalysts with improved activity by incorporating 2-hydroxyethyl methacrylate (HEMA) into the support of the catalyst.Type: ApplicationFiled: April 30, 2003Publication date: October 23, 2003Applicant: THE GOVERNORS OF THE UNIVERSITY OF ALBERTAInventors: Peter Phung Minh Hoang, Charles Russell, Jason Roy Kearns, Sieghard E. Wanke, David T. Lynch, Nai-Hong Li
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Patent number: 6583082Abstract: Functional polymers containing hydroxyl groups as supports for use with catalysts can increase the activity of these catalysts which results in improved ethylene polymerization. The present invention seeks to provide catalysts with improved activity by incorporating 2-hydroxyethyl methacrylate (HEMA) into the support of the catalyst.Type: GrantFiled: December 1, 2000Date of Patent: June 24, 2003Assignee: The Governors of the University of AlbertaInventors: Peter Phung Minh Hoang, Charles Russell, Jason Roy Kearns, Sieghard E. Wanke, David T. Lynch, Nai-Hong Li
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Patent number: 6531551Abstract: A polypropylene composition comprising 0.001 to 10 parts by weight of a polyethylene having an intrinsic viscosity [&eegr;E] of 0.01 to less than 15 dl/g s measured in tetralin at 135° C. and 100 parts by weight of a polyolefin comprising at least polypropylene, wherein the polyethylene is finely dispersed as particles with a number average particle diameter of, e.g., 1 to 5000 nm in the polyolefin comprising at least polypropylene. By virtue of the above constitution, the polypropylene composition has excellent transparency and rigidity, is free from the creation of a sweeper roll flow mark in the preparation of a film and substantially free from a neck-in phenomenon of a film, and has high productivity.Type: GrantFiled: January 11, 1999Date of Patent: March 11, 2003Assignee: Chisso CorporationInventors: Katsuhiko Ohno, Masami Kimura, Taketo Hirose, Yoshitaka Morimoto, Jun Saito
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Patent number: 6524986Abstract: Catalyst support containing an &agr;-olefin polymer which is in the form of particles of mean size from 5 to 350 &mgr;m in which the pore volume generated by the pores of radius from 1,000 to 75,000 Å is at least 0.2 cm3/g. Catalyst usable for the polymerization of &agr;-olefins, including a compound containing at least one transition metal belonging to groups IIIb, IVb, IVb and VIb of the Periodic Table, bound in or on this support.Type: GrantFiled: March 8, 2001Date of Patent: February 25, 2003Assignee: Solvay Polyolefins Europe-BelgiumInventors: Jean-Louis Costa, Vincent Laurent, Philippe Francois, Dirk Vercammen
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Patent number: 6482764Abstract: A method for producing a supported catalyst useful in polymerization of ethylene and copolymerization of ethylene and &agr;-olefin is disclosed. The method includes treating the magnesium-containing carrier with a titanium compound containing oxygen atom(s), wherein said carrier is obtained by reaction of an organomagnesium compound of the structure of MgPh2.nMgCl2.mR2O (n=0.37˜0.7; m≧1; R20=ether; Ph=phenyl) with an organic chloride compound in a mole ratio of organic chloride compound/Mg≧0.5, at −20˜80° C. In one embodiment, the organic chloride compound may be carbon tetrachloride. A specific catalyst is provided whose activity is low in the beginning but slowly rises to a sufficient degree as the process of polymerization progresses, the polymer produced with the use of said catalyst having high bulk density, a well adjusted particle size distribution, and a narrow molecular weight distribution.Type: GrantFiled: April 16, 1999Date of Patent: November 19, 2002Assignee: Samsung General Chemicals Co., Ltd.Inventors: Ho-Sik Chang, Youn-Kyung Kang, Vladimir Alexandrovich Zakharov, Valentin Evgenievich Nikitin
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Patent number: 6468937Abstract: There are disclosed: (i) a first solid catalyst component obtained by contacting (a) a carrier of carboxyl group-carrying polymer particles having an average particle size of from about 1 to 200 &mgr;m with spherical or elliptical particles morphology (b) an organometallic compound of the number 1, 2 or 13 group of metals in the periodic table of elements, and (c) a transition metal compound of the number 4 group of metals of the periodic table of elements, and a second solid catalyst component obtained by contacting (a), (b), (c) and (d) a phenol compound, and production processes of the two solid catalyst components, (ii) a catalyst obtained by combining the two solid catalyst components with an organoaluminum compound; and (iii) a process for producing an olefin polymer with a catalyst of the invention, wherein the polymer produced is extremely low in its content of lower molecular weight components and low crystallinity components, and superior in its powder properties.Type: GrantFiled: March 30, 1999Date of Patent: October 22, 2002Assignee: Sumitomo Chemical Company, LimitedInventors: Kotohiro Nomura, Seiki Kiuchi, Tatsuya Miyatake