Containing Two Or More Different Component B Metals Patents (Class 502/113)
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Patent number: 8748546Abstract: The present invention provides dual catalyst systems and polymerization processes employing these dual catalyst systems. The disclosed polymerization processes can produce olefin polymers at higher production rates, and these olefin polymers may have a higher molecular weight and/or a lower melt index.Type: GrantFiled: May 7, 2013Date of Patent: June 10, 2014Assignee: Chevron Phillips Chemical Company LPInventors: Albert P. Masino, Rex E. Murray, Qing Yang, Steve J. Secora, Kumudini C. Jayaratne, William B. Beaulieu, Errun Ding, Gary L. Glass, Alan L. Solenberger, Ted H. Cymbaluk
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Patent number: 8741798Abstract: Embodiments of the invention provide catalysts for hydrocarbon oxidation. One embodiment of the invention provides a catalyst for hydrocarbon oxidation comprising: a liquid medium including aromatic hydrocarbon 150; bis(2,4-pentanedionato)platinum; bis(2,4-pentanedionato)palladium; ferrocene; magnesium 2-ethylhexanoate; and cerium (III) 2-ethylhexanoate, rhenium in an organo-metallic compound, or both.Type: GrantFiled: May 27, 2009Date of Patent: June 3, 2014Inventor: Emmett M. Cunningham
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Patent number: 8735312Abstract: The present invention relates to a catalyst composition and a process for preparing an olefin polymer using the same. More specifically, the present invention relates to a novel catalyst composition comprising at least two types of catalysts and a process for preparing an olefin polymer having excellent heat resistance using the same. The present invention can provide an olefin polymer having excellent activity and high heat resistance, and also can control the values of density, heat resistance and melt index (MI) of the olefin polymer.Type: GrantFiled: April 25, 2011Date of Patent: May 27, 2014Assignee: LG Chem, Ltd.Inventors: Kyung-Seop Noh, Hoon Chae, Cheon-Il Park, Won-Hee Kim, Sang-Jin Jeon, Eun-Jung Lee, Choong-Hoon Lee, Jong-Joo Ha
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Patent number: 8716415Abstract: The present invention provides a method for preparing a supported metallocene catalyst, a supported metallocene catalyst prepared by the method, and a method for preparing a polyolefin using the supported metallocene catalyst. The supported metallocene catalyst according to the present invention contains catalyst components uniformly distributed deep into the whole porous carrier particles to secure a high catalytic activity and facilitates polymerization of polyolefins with high bulk density.Type: GrantFiled: October 19, 2010Date of Patent: May 6, 2014Assignee: LG Chem, Ltd.Inventors: Hyeon-Gook Kim, Ki-Soo Lee, Eun-Kyoung Song, Yong-Ho Lee, Dae-Sik Hong
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Patent number: 8716414Abstract: The present invention relates to a mixed metallocene catalyst composition including a first metallocene catalyst and a second metallocene catalyst, and a method for preparing a polyolefin using the catalyst composition. According to the catalyst composition and the preparation method, provided is a polyolefin having a wide molecular weight distribution and superior mechanical properties and processability.Type: GrantFiled: November 5, 2010Date of Patent: May 6, 2014Assignee: LG Chem, Ltd.Inventors: Jong-Joo Ha, Choong-Hoon Lee, Don-Ho Kum, Eun-Jung Lee, Beom-Doo Seo
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Patent number: 8691715Abstract: The present invention provides a polymerization process utilizing a dual ansa-metallocene catalyst system. Polymers produced from the polymerization process are also provided, and these polymers have a reverse comonomer distribution, a non-bimodal molecular weight distribution, a ratio of Mw/Mn from about 3 to about 8, and a ratio of Mz/Mw from about 3 to about 6.Type: GrantFiled: January 24, 2013Date of Patent: April 8, 2014Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Max P. McDaniel, William B. Beaulieu, Joel L. Martin, Tony R. Crain
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Patent number: 8691714Abstract: This invention relates to a process to make a multimodal polyolefin composition comprising: (i) contacting at least one first olefin monomer with a mixed catalyst system, under polymerization conditions, to produce at least a first polyolefin component having a Mw of 5,000 g/mol to 600,000 g/mol, wherein the mixed catalyst system comprises: (a) at least one polymerization catalyst comprising a Group 4 or Group 5 transition metal; (b) at least one organochromium polymerization catalyst; (c) an activator; and (d) a support material; (ii) thereafter, contacting the first polyolefin component/mixed catalyst system combination with a molecular switch; (iii) contacting the first polyolefin component/mixed catalyst system combination with at least one second olefin monomer, which may be the same or different, under polymerization conditions; and (iv) obtaining a multimodal polyolefin composition.Type: GrantFiled: February 21, 2012Date of Patent: April 8, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Matthew W. Holtcamp, Matthew S. Bedoya
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Publication number: 20140088265Abstract: This invention relates to processes to produce vinyl terminated polyethylene involving contacting ethylene with a supported metallocene catalyst system; wherein the supported catalyst system comprises a support material; an alumoxane activator; and a metallocene compound. A supported metallocene catalyst system is also disclosed. Processes to produce ethylene copolymers are also disclosed.Type: ApplicationFiled: September 23, 2013Publication date: March 27, 2014Inventors: Donna J. Crowther, Patrick Brant
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MULTI-METALLIC ZIEGLER-NATTA PROCATALYSTS AND CATAYSTS PREPARED THEREFROM FOR OLEFIN POLYMERIZATIONS
Publication number: 20140080970Abstract: Novel catalyst compositions comprising three or more transition metals are effective in increasing catalyst efficiency, reducing polydispersity, and increasing uniformity in molecular weight distribution when used in olefin, and particularly, linear low density polyethylene (LLDPE), polymerizations. The resulting polymers may be used to form differentiated products including, for example, films that may exhibit improved optical and mechanical properties.Type: ApplicationFiled: May 23, 2012Publication date: March 20, 2014Applicant: Dow Global Technologies LLCInventors: Sylvie Desjardins, Mehmet Demirors, Ellen Donkers, Manvel Fontaine, Cristina Serrat -
Patent number: 8664140Abstract: Process for supportation of a catalyst system comprising at least two different active catalyst components on a support wherein in an earlier supportation step a first active catalyst component is applied to the support at a first predetermined temperature and in a later supportation step a second active catalyst component is applied to the support at a temperature which is at least 20° C. lower than the first predetermined temperature.Type: GrantFiled: December 12, 2009Date of Patent: March 4, 2014Assignee: Basell Polyolefine GmbHInventors: Harald Schmitz, Fabiana Fantinel, Jürgen Hilz, Shahram Mihan
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Patent number: 8648166Abstract: An antimony-free PET resin produced by using an inorganic Ti—Mg catalyst and a small amount of blue and red dyes, in the absence of an antimony catalyst or a phosphorus stabilizer; and, in a melt spinning process for producing PET polyester fiber, the PET resin demonstrates excellent spinnability but no yarn breaks or aggregation of TiO2 delustering agent so that the resultant PET polyester fiber features commercially desired in both color tone and glossiness. Especially the PET resin and the PET polyester fiber containing no antimony are therefore environmentally friendly by causing no heavy metal pollution to the environment.Type: GrantFiled: November 9, 2011Date of Patent: February 11, 2014Assignee: Nan Ya Plastics CorporationInventor: Zo-Chun Jen
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Patent number: 8648000Abstract: Process for producing homopolymers or copolymers of conjugated dienes by contacting monomeric material including at least one conjugated diene with a catalyst system comprising (A) a first transition metal compound selected from Cr, Mo and W compounds, and a second transition metal compound selected from Fe, Co and Ni compounds, (B) a catalyst modifier and, optionally, (C) one or more catalyst activators.Type: GrantFiled: October 26, 2007Date of Patent: February 11, 2014Assignee: Ineos Commercial Services UK LimitedInventors: Juan Jose Chirinos-Colina, Vernon Charles Gibson, Grant Berent Jacobsen
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Patent number: 8637421Abstract: The present invention discloses a catalyst system based on a metallocene catalyst component and a new single site catalyst component for the production in a single reactor of improved polyolefins having a bimodal molecular weight distribution.Type: GrantFiled: April 24, 2013Date of Patent: January 28, 2014Assignee: Total Petrochemicals Research FeluyInventor: Abbas Razavi
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Patent number: 8633125Abstract: Catalysts suitable for preparation of a polyethylene which comprises ethylene homopolymers and/or copolymers of ethylene with 1-alkenes and has a molar mass distribution width Mw/Mn of from 5 to 30, a density of from 0.92 to 0.955 g/cm3, a weight average molar mass Mw of from 50000 g/mol to 500 000 g/mol and has from 0.01 to 20 branches/1000 carbon atoms and a z-average molar mass Mz of less than 1 million g/mol.Type: GrantFiled: July 21, 2011Date of Patent: January 21, 2014Assignee: Basell Polyolefine GmbHInventors: Jennifer Kipke, Shahram Mihan, Rainer Karer, Dieter Lilge
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Publication number: 20130345375Abstract: The olefin polymerization catalyst composition comprises an organometallic compound represented by Formula 1; an organic transition metal compound represented by Formula 2; an organic transition metal compound represented by Formula 3; and an aluminoxane. (Cp?)lM1R1mR2n??Formula 1: wherein M1 is an element selected from the group of elements of Group 1, 2, 12, 13 and 14, (Cp?) is a cyclic hydrocarbyl group of 5 to 30 carbon atoms having at least 2 conjugated double bonds, R1 and R2 are independently a hydrocarbyl group of 1 to 24 carbon atoms, l is an integer of 1 to the valence of M1, m and n are independently an integer of 0 to 2, and l+m+n is equal to the valence of M1, (4HInd)2M2X2??Formula 2: M2X4??Formula 3: wherein in Formulas 2 and 3, (4HInd) is a group having tetrahydroindenyl nucleus, M2 is titanium (Ti), zirconium (Zr) or hafnium (Hf), and X is a halogen atom.Type: ApplicationFiled: June 26, 2012Publication date: December 26, 2013Applicant: DAELIM INDUSTRIAL CO., LTD.Inventors: Sah-Mun HONG, Hye-Sun CHOI
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Patent number: 8598061Abstract: The present invention provides a polymerization process utilizing a dual metallocene catalyst system for the production of broad or bimodal molecular weight distribution polymers, generally, in the absence of added hydrogen. Polymers produced from the polymerization process are also provided, and these polymers can have a Mn in a range from about 9,000 to about 30,000 g/mol, and a short chain branch content that decreases as molecular weight increases.Type: GrantFiled: September 4, 2012Date of Patent: December 3, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Max P. McDaniel, Tony R. Crain, Youlu Yu
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Publication number: 20130317184Abstract: A precursor for the formation of catalysts for the (co)polymerization of ?-olefins, comprising titanium, magnesium, at least one metal selected from hafnium and zirconium, aluminum and chlorine, obtained with a process comprising treatment with a siloxane compound. Said solid precursor, used in combination with a suitable co-catalyst in high-temperature (co)polymerization processes of ?-olefins, shows an improved productivity, a high incorporation of co-monomers in the copolymerization of ethylene and an increased thermal stability with respect to the systems so far in use.Type: ApplicationFiled: December 20, 2011Publication date: November 28, 2013Inventors: Francesco Masi, Francesco Menconi, Giuseppe Conti, Mario Polesello, Alberto Zanellato
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Patent number: 8592615Abstract: The present invention relates to compositions and processes of making catalysts and polyolefins. More particularly, the invention relates to snap shut catalysts, processes for making the catalysts, processes for making polyolefins using the catalysts and the polyolefins resulting therefrom.Type: GrantFiled: March 5, 2010Date of Patent: November 26, 2013Assignee: Dow Global Technologies, LLCInventors: Roger L. Kuhlman, Gregory T. Whiteker
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Patent number: 8586497Abstract: Olefin polymerization catalyst systems including a high molecular weight catalyst compound and a low molecular weight catalyst compound, and methods of making same are provided. High molecular weight catalysts include metallocene catalysts and low molecular weight catalysts include non-metallocene compounds including biphenyl phenol compounds. Generally catalyst systems may include less than about 5.0 mol % of the high molecular weight catalyst compound relative to said low molecular weight catalyst. Methods for olefin polymerization including the aforementioned catalyst systems, and polyolefins and products made therefrom.Type: GrantFiled: November 12, 2008Date of Patent: November 19, 2013Assignee: Univation Technologies, LLCInventors: Rainer Kolb, Dongming Li, Francis C. Rix, Cesar A. Garcia-Franco
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Publication number: 20130289227Abstract: Olefin polymerization catalysts or catalyst systems comprising a mixture, contact product, reaction product or complex comprising as elements or components: (A) at least one metallocene pre-catalyst compound or polymerization active metallocene compound; (B) at least one titanium containing metallocene compound; and when (A) is a metallocene pre-catalyst compound, (C) at least one activator; provided however: (I) the titanium-containing metallocene compound is inactive or substantially inactive for the polymerization of olefins prior to or concurrently with the use of the catalyst system for olefin polymerization.Type: ApplicationFiled: January 12, 2012Publication date: October 31, 2013Applicant: W.R. GRACE & CO.-CONNInventors: Michael D. Jensen, Michael J. Elder, Andrew G. Singleton, Stephen R. Schmidt, Patrick J. Kerwin, John H. Hain, JR., Fengjun Hua
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Patent number: 8569194Abstract: The present invention relates to a supported catalyst composition for polymerization of olefins comprising at least two catalytic components; and a polymerization process using that catalyst composition; and a method for its preparation.Type: GrantFiled: August 11, 2006Date of Patent: October 29, 2013Assignee: Saudi Basic Industries CorporationInventors: Wei Xu, Syriac J. Palackal, Atieh Abu-Ruqabah, Maneet Muktibodh, Bing Wang, Nicolaas Hendrika Friederichs
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Patent number: 8563458Abstract: A method of polymerizing olefins with catalyst systems, such as, for example, a multimodal catalyst system, wherein the catalyst system is stored at a controlled temperature to minimize loss of catalyst system productivity.Type: GrantFiled: November 22, 2011Date of Patent: October 22, 2013Assignee: Univation Technologies, LLCInventors: Natarajan Muruganandam, Jeevan Abichandani, Kersten A. Terry, Hement G. Patel, George Rodriguez
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Patent number: 8557935Abstract: Bimetallic catalysts, methods of producing bimetallic catalysts comprising a modified Ziegler-Natta catalyst and a metallocene, and methods of olefin polymerization using such catalysts are provided. The method of producing the bimetallic catalyst may include combining (a) a Ziegler-Natta catalyst comprising a Group 4, 5 or 6 metal halide and/or oxide, optionally including a magnesium compound, with (b) a modifier compound (“modifier”), wherein the modifier compound is a Group 13 alkyl compound, to form a modified Ziegler-Natta catalyst. The modified Ziegler-Natta catalyst is preferably non-activated, that is, it is unreactive towards olefin polymerization alone. The molar ratio of the Group 13 metal (of the modifier) to the Group 4, 5 or 6 metal halide and/or oxide may be less than 10:1. The bimetallic catalysts are useful in producing bimodal polymers, particularly bimodal polyethylene, having a Polydispersity (Mw/Mn) of from 12 to 50, which may be used in pipes and films.Type: GrantFiled: June 13, 2012Date of Patent: October 15, 2013Assignee: Univation Technologies, LLCInventors: Sun-Chueh Kao, Michael D. Awe
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Patent number: 8536081Abstract: Supported catalyst system for the polymerization of olefins, having at least two different monocyclopentadienyl transition metal compounds, one or more activators including an ionic compound having (i) a cation and (ii) an anion having up to 100 non-hydrogen atoms and the anion containing at least one substituent comprising a moiety having an active hydrogen, and one or more support materials. The supported “mixed or dual site” catalyst systems having different monocyclopentadienyl catalysts when activated by specific ionic activators lead to catalyst systems showing an improved balance of properties which may be used to prepare LLDPE polymers having broad melt flow ratios.Type: GrantFiled: November 10, 2005Date of Patent: September 17, 2013Assignee: Ineos Europe LimitedInventors: Grant Berent Jacobsen, Dusan Jeremic, Sergio Mastroianni, Ian Douglas McKay
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Patent number: 8536286Abstract: A composite catalyst useful in the production of polyethylene, which comprises at least a first catalyst and a second catalyst separated by a polymer layer, with the first catalyst and the second catalyst being identical or different, is described. A composite catalyst useful in the production of polyethylene with a broad molecular weight distribution in a single polymerization reactor, which comprises at least a first catalyst and a second catalyst separated by a polymer layer, with the first catalyst and the second catalyst being different, is also described. A process for preparing said catalysts and a process for the production of a polyethylene by using said catalysts are also described.Type: GrantFiled: March 28, 2008Date of Patent: September 17, 2013Assignees: China Petroleum & Chemical Corporation, Zhejiang University, Sinopec Engineering IncorporationInventors: Wenqing Wu, Yongrong Yang, Jingdai Wang, Binbo Jiang, Guanghai Luo, Shufang Wang, Yi Wang, Xianfong Zhang, Guodong Han
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Patent number: 8524626Abstract: The present invention provides polymerization catalyst compositions employing novel dinuclear metallocene compounds. Methods for making these new dinuclear metallocene compounds and for using such compounds in catalyst compositions for the polymerization and copolymerization of olefins are also provided.Type: GrantFiled: November 3, 2011Date of Patent: September 3, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Rex E. Murray, Kumudini C. Jayaratne, Qing Yang, Joel L. Martin
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Patent number: 8524844Abstract: Carbon dioxide is used to control the ratio of polymer components in a polyethylene composition made using a combination catalyst comprising a chromium catalyst, a single site catalyst and one or more activators.Type: GrantFiled: July 22, 2011Date of Patent: September 3, 2013Assignee: Nova Chemicals (International) S.A.Inventors: Yves Lacombe, Victoria Ker, Peter Phung Minh Hoang, Patrick Evans
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Patent number: 8524627Abstract: The present invention relates to a process for preparing an activating support for metallocene complexes in the polymerization of olefins comprising the steps of: I) providing a support consisting in particles formed from at least one porous mineral oxide; II) optionally fixing the rate of silanols on the surface of the support; III) functionalizing the support with a solution containing a metallic salt; IV) heating the functionalized support of step c) under an inert gas or hydrogen; V) oxidizing the support of step IV by treatment under N2O and then under oxygen; VI) retrieving an active support having a controlled number of OH groups. That activating support is used to activate a metallocene catalyst component for the polymerization of olefins.Type: GrantFiled: April 29, 2010Date of Patent: September 3, 2013Assignee: Total Research & Technology FeluyInventors: Gaëlle Pannier, Christophe Boisson, Roger Spitz
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Publication number: 20130225772Abstract: A supported catalyst system comprising a coprecipitated silica-and titania-containing support, comprising alumoxane as acatalyst activating agent, and a metallocene, wherein the supported catalyst system has a Ti content of at least 0.1 wt %.Type: ApplicationFiled: August 16, 2011Publication date: August 29, 2013Applicant: TOTAL RESEARCH & TECHNOLOGY FELUYInventors: Christopher Willocq, Aurélien Vantomme, Martine Slawinski
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Patent number: 8519070Abstract: The present invention relates to the field of group 4 post-metallocene complexes based on sterically encumbered bis(naphthoxy)pyridine and bis(naphthoxy)thiophene ligands. It also relates to the use of such post-metallocene complexes in the polymerization of ethylene and alpha-olefins.Type: GrantFiled: February 17, 2009Date of Patent: August 27, 2013Assignees: Total Petrochemicals Research Feluy, Centre National de la Recherche Scientifique (CNRS)Inventors: Jean-François Carpentier, Evgueni Kirillov, Abbas Razavi
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Publication number: 20130211018Abstract: The invention covers a supported catalyst system prepared according to a process comprising the following step: i). impregnating a silica-containing catalyst support having a specific surface area of from 150 m2/g to 800 m2/g, preferably 280 m2/g to 600 m2/g, with one or more titanium compounds of the general formula selected from RnTi(OR?)m and (RO)nTi(OR?)m, wherein R and R? are the same or different and are selected from hydrocarbyl groups containing from 1 to 12 carbon and halogens, and wherein n is 0 to 4, m is 0 to 4 and m+n equals 4, to form a titanated silica-containing catalyst support having a Ti content of at least 0.1 wt % based on the weight of the Ti-impregnated catalyst support wherein the supported catalyst system further comprises an alumoxane and a metallocene.Type: ApplicationFiled: July 1, 2011Publication date: August 15, 2013Applicant: TOTAL RESEARCH & TECHNOLOGY FELUYInventors: Christopher Willocq, Aurélien Vantomme, Martine Slawinski
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Publication number: 20130211020Abstract: The present invention relates to a catalyst composition comprising a novel transition metal compound and a preparation method for polyolefin using the same. The catalyst composition of the present invention has high catalytic activity for polymerization of olefin-based monomers and enables it to control the fine-structure characteristics of the polyolefin, such as molecular weight distribution, in a wide range, thereby easily providing a polyolefin with desired properties.Type: ApplicationFiled: April 12, 2011Publication date: August 15, 2013Applicant: LOTTE CHEMICAL CORPORATIONInventors: Bun-Yeoul Lee, Ji-Hae Park, Seung-Hyun Do, Young-Kook Kim, In-Sung Nam, Seung-Woong Yoon
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Patent number: 8507403Abstract: A process is described for producing a powder batch comprises a plurality of particles, wherein the particles include (a) a first catalytically active component comprising at least one transition metal or a compound thereof; (b) a second component different from said first component and capable of removing oxygen from, or releasing oxygen to, an exhaust gas stream; and (c) a third component different from said first and second components and comprising a refractory support. The process comprises providing a precursor medium comprising a liquid vehicle and a precursor to al least one of said components (a) to (c) and heating droplets of said precursor medium carried in a gas stream to remove at least part of the liquid vehicle and chemically convert said precursor to said at least one component.Type: GrantFiled: June 27, 2008Date of Patent: August 13, 2013Assignee: Cabot CorporationInventors: Miodrag Oljaca, Toivo T. Kodas, Ranko P. Bontchev, Klaus Kunze, Kenneth C. Koehlert
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Patent number: 8501133Abstract: A catalyst for treating exhaust gases containing nitrogen monoxide, carbon monoxide and volatile organic compounds includes a plurality of layers, an upper layer of which has an active component contained uniformly therein and a lower layer of which has no active component contained therein. The catalyst is obtained through the steps of: forming the lower layer by coating the surface of substrate with a slurry of a porous inorganic compound, followed by drying; and forming the upper layer, which is to be the top surface of the catalyst, by coating the surface of the lower layer with a slurry of a porous inorganic compound that has the active component composed of one or more precious metals supported thereon, followed by drying. The oxidation power of the resulting catalyst is enhanced without increasing the amount of precious metal supported thereon.Type: GrantFiled: March 13, 2012Date of Patent: August 6, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Katsumi Nochi, Masanao Yonemura, Yoshiaki Obayashi, Hitoshi Nakamura
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Patent number: 8501653Abstract: Catalyst systems, processes of forming the same and polymers formed therefrom are described herein.Type: GrantFiled: February 16, 2011Date of Patent: August 6, 2013Assignee: Fina Technology, Inc.Inventors: Lei Zhang, David Knoeppel
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Patent number: 8501654Abstract: The present invention provides dual catalyst systems containing a metallocene catalyst and a hydrogen scavenging catalyst, and polymerization processes employing these dual catalyst systems. Due to a reduction in hydrogen levels in the polymerization processes, olefin polymers produced from these polymerization processes may have a higher molecular weight, a lower melt index, and higher levels of unsaturation.Type: GrantFiled: June 5, 2012Date of Patent: August 6, 2013Assignee: Chevron Philips Chemical Company LPInventors: Rex E. Murray, William B. Beaulieu, Qing Yang, Errun Ding, Gary L. Glass, Alan L. Solenberger, Steven J. Secora
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Patent number: 8487135Abstract: A process for preparing an amine by reacting a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group of ammonia and primary and secondary amines, in the presence of a supported copper-, nickel- and cobalt-containing catalyst, wherein the catalytically active material of the catalyst, before the reduction thereof with hydrogen, comprises oxygen compounds of aluminum, of copper, of nickel and of cobalt, and in the range from 0.2 to 5.0% by weight of oxygen compounds of tin, calculated as SnO, and catalysts as defined above.Type: GrantFiled: December 2, 2010Date of Patent: July 16, 2013Assignee: BASF SEInventors: Petr Kubanek, Wolfgang Mägerlein, Johann-Peter Melder, Thomas Heidemann
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Patent number: 8471050Abstract: The present invention relates to non-symmetrical organometallic transition metal compounds of the compound of the formula (I) where R8 and R9 are identical or different and each an substituted or unsubstituted organic radical having from 1 to 40 carbon atoms, catalyst systems comprising at least one of the organometallic transition metal compounds of the present invention and a process for preparing polyolefins by polymerization or copolymerization of at least one olefin in the presence of one of the catalyst systems of the present invention.Type: GrantFiled: July 20, 2010Date of Patent: June 25, 2013Assignee: Basell Polyolefine GmbHInventors: Fabiana Fantinel, Ilya Nifant'ev, Shahram Mihan
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Patent number: 8461276Abstract: Propylene polymerization processes, polymers and films formed therefrom are described herein. The propylene polymerization processes generally include contacting propylene and an amount of ethylene with a first metallocene catalyst and a second metallocene catalyst within a polymerization reaction vessel to form a propylene based polymer, wherein the amount is an amount effective to form the propylene based polymer including from about 2 wt. % to about 6 wt. % ethylene, the second metallocene catalyst is capable of incorporating a greater amount of ethylene into the propylene based polymer than the first metallocene catalyst and wherein the first metallocene catalyst is capable of forming a propylene/ethylene random copolymer exhibiting a melting temperature that is greater than that of a propylene/ethylene random copolymer formed from the second metallocene catalyst.Type: GrantFiled: June 18, 2012Date of Patent: June 11, 2013Assignee: Fina Technology, Inc.Inventors: Tim Coffy, Kenneth Blackmon, Joseph Thorman, David Rauscher, Jun Tian, William Gauthier, Nathan Williams
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Publication number: 20130144016Abstract: A process for preparing a supported catalyst system comprising the following steps: a. titanating a silica-containing catalyst support having a specific surface area of from 150 m2/g to 800 m2/g, preferably 280 to 600 m2/g, with at least one vapourised titanium compound of the general formula selected from RnTi(OR?)m and (RO)nTi(OR?)m, wherein R and R? are the same or different and are selected from hydrocarbyl groups containing from 1 to 12 carbon and halogens, and wherein n is 0 to 4, m is 0 to 4 and m+n equals 4, to form a titanated silica-containing catalyst support having at least 0.1 wt % of Ti based on the weight of the titanated silica-containing catalyst support, b. treating the support with a catalyst activating agent, preferably an alumoxane. c. treating the titanated support with at least one metallocene during or after step (b).Type: ApplicationFiled: March 3, 2011Publication date: June 6, 2013Applicant: TOTAL RESEARCH & TECHNOLOGY FELUYInventors: Christopher Willocq, Martine Slawinski, Aurélien Vantomme
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Patent number: 8455386Abstract: The present invention discloses a catalyst system based on a metallocene catalyst component and a new single site catalyst component for the production in a single reactor of improved polyolefins having a bimodal molecular weight distribution.Type: GrantFiled: March 28, 2012Date of Patent: June 4, 2013Assignee: Total Research & Technology FeluyInventor: Abbas Razavi
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Patent number: 8450436Abstract: The present invention provides dual catalyst systems and polymerization processes employing these dual catalyst systems. The disclosed polymerization processes can produce olefin polymers at higher production rates, and these olefin polymers may have a higher molecular weight and/or a lower melt index.Type: GrantFiled: November 20, 2012Date of Patent: May 28, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Albert P. Masino, Rex E. Murray, Qing Yang, Steve J. Secora, Kumudini C. Jayaratne, William B. Beaulieu, Errun Ding, Gary L. Glass, Alan L. Solenberger, Ted H. Cymbaluk
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Patent number: 8435914Abstract: A polymerization catalyst system and polymerization processes using the catalyst systems are disclosed. The polymerization catalyst systems may include a) a first catalyst compound, and b) a second catalyst compound, wherein the first catalyst compound includes an oxadiazole-containing compound. In some embodiments, the oxadiazole-containing compound has essentially no hydrogen response, thus allowing better and/or tailored control of product properties when producing polymers using the catalyst system.Type: GrantFiled: May 14, 2010Date of Patent: May 7, 2013Assignee: Univation Technologies, LLCInventors: Sun-Chueh Kao, Francis C. Rix, Dongming Li, C. Jeff Harlan, Parul A. Khokhani
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Patent number: 8435911Abstract: The present invention relates to a new hybrid catalyst system for the polymerization of olefins and to a polymerization process carried out in the presence of said catalyst. The new hybrid catalyst system comprises a tridendate iron compound and a zirconocene having a bridge of at least three carbon atoms connecting two indenyl ligands.Type: GrantFiled: September 18, 2009Date of Patent: May 7, 2013Assignee: Basell Polyolefine GmbHInventors: Harald Schmitz, Shahram Mihan
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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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Patent number: 8426536Abstract: The present invention provides polymerization catalyst compositions employing novel heterodinuclear metallocene compounds. Methods for making these new dinuclear metallocene compounds and for using such compounds in catalyst compositions for the polymerization of olefins are also provided.Type: GrantFiled: February 16, 2012Date of Patent: April 23, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Rex E. Murray, Kumudini C. Jayaratne, Qing Yang, Joel L. Martin, Gary L. Glass
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Patent number: 8420563Abstract: Multinuclear catalyst complex comprising two or more active metal centers and at least one phenoxyimine derivative and at least one substituted cyclopentadienyl, indenyl or fluorenyl derivative, each phenoxyimine derivative being bonded to a cyclopentadienyl, indenyl or fluorenyl derivative forming a ligand framework, the cyclopentadienyl, indenyl or fluorenyl derivative being coordinated with one of the metal centers and the phenoxyimine derivative being coordinated with an active metal center other than the metal center the cyclopentadienyl, indenyl or fluorenyl derivative is coordinated with, and wherein the phenoxyimine derivative is derived from a phenoxyimine compound of the formula wherein R1 is hydrogen, alkyl, cycloalkyl, aryl or aralkyl; R2 is hydrogen, halogen, alkyl, cycloalkyl, aryl, O-alkyl or aralkyl; and R3 is alkyl, cycloalkyl, aryl or aralkyl, process for preparing a multinuclear catalyst composition comprising the steps of bonding the substituted phenoxyimine compound to a substituteType: GrantFiled: March 5, 2008Date of Patent: April 16, 2013Assignee: Saudi Basic Industries CorporationInventors: Syriac Palackal, Atieh Aburaqabah, Helmut G. Alt, Christian Goerl
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Publication number: 20130053523Abstract: Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.Type: ApplicationFiled: October 30, 2012Publication date: February 28, 2013Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventor: Chevron Phillips Chemical Company LP
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Patent number: 8383754Abstract: The present invention provides a polymerization process utilizing a dual ansa-metallocene catalyst system. Polymers produced from the polymerization process are also provided, and these polymers have a reverse comonomer distribution, a non-bimodal molecular weight distribution, a ratio of Mw/Mn from about 3 to about 8, and a ratio of Mz/Mw from about 3 to about 6.Type: GrantFiled: April 19, 2010Date of Patent: February 26, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Max P. McDaniel, William B. Beaulieu, Joel L. Martin, Tony R. Crain
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Patent number: 8367853Abstract: The present techniques relates generally to polyolefin catalysts and, more specifically, to preparing a precursor compound for an unsymmetric metallocene catalyst, for using the precursor compound to prepare catalysts, and for employing the precursor compounds to prepare catalysts for polyolefin polymerizations.Type: GrantFiled: July 19, 2011Date of Patent: February 5, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Rex E. Murray, Richard M. Buck