Preparing Catalyst Or Precursor Patents (Class 502/104)
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Patent number: 10836847Abstract: A procatalyst for polymerization of olefins, based on a magnesium compound of the formula MgR?R? wherein R? is an alkoxide or aryloxide group and R? is an alkoxide or aryloxide group or halogen that has been reacted with a tetravalent titanium halide, an activator being a monoester and an internal donor of formula B: as described herein. Also described is a polymerization catalyst system comprising the procatalyst, a co-catalyst and optionally an external electron donor; a process of making a polyolefin by contacting an olefin with the catalyst system; a polyolefinobtained by or obtainable by the process; and a polyolefin, preferably a polypropylene, having a molecular weight distribution of between 3 and 15, a molecular weight (Mw) of between 200,000 to 1,000,000 g/mol, a melting temperature of more than 145° C., a value for the xylene solubles of less than 4 wt. % and a shaped article therefrom.Type: GrantFiled: November 28, 2016Date of Patent: November 17, 2020Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Bandar Abdullah Almohammadi, Akhlaq Moman, Ahmad Abdullah Alshaiban, Inaamul Haq Siddiqui, Sudhakar R. Padmanabhan
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Patent number: 10774015Abstract: Disclosed herein are processes, systems, and reaction systems for the oligomerization of ethylene to form an ethylene oligomer product in a reaction zone using a catalyst system having i) a chromium component comprising a heteroatomic ligand chromium compound complex of the type disclosed herein, and ii) an aluminoxane. A C3+ olefin can be present in the reaction zone for a period of time, where the C3+ olefin is not an ethylene oligomer formed in-situ within the reaction zone.Type: GrantFiled: August 21, 2019Date of Patent: September 15, 2020Assignee: Chevron Phillips Chemical Company LPInventors: Jared T. Fern, Orson L. Sydora, Uriah J. Kilgore, Steven M. Bischof, Eric R. Fernandez
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Patent number: 10717791Abstract: A procatalyst for polymerization of olefins, which procatalyst is based on a magnesium compound of the formula MgR?R? wherein R? is an alkoxide or aryloxide group and R? is an alkoxide or aryloxide group or halogen, an activator being a monoester and an internal donor represented by a compound according to formula A: as described herein. Also described is a polymerization catalyst system comprising the procatalyst, a co-catalyst and optionally an external electron donor; a process of making a polyolefin, by contacting an olefin with the catalyst system; a polyolefin, obtained by or obtainable by the process; and a polyolefin, having a molecular weight distribution of between 4 and 15, a molecular weight (Mw) of between 300,000 to 1,500,000 g/mol, a melting temperature of more than 150° C., a value for the xylene solubles of less than 4 wt. % and a shaped article therefrom.Type: GrantFiled: November 23, 2016Date of Patent: July 21, 2020Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Akhlaq Moman, Abdulaziz Al-Humydi, Inaamul Haq Siddiqui, Sudhakar R. Padmanabhan, Bandar Abdullah Almohammadi, Ahmad Abdullah Alshaiban
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Patent number: 10544237Abstract: Disclosed is a method of reducing and/or regulating the level of hydrogen in a polymerization reactor comprising contacting a first feed comprising a first amount of hydrogen with a hydrogenation catalyst prior to entering a polymerization reactor to form a second feed; then contacting the second feed having a second amount of hydrogen with monomers and a polymerization catalyst in a polymerization reactor to form a polymer. The first and second feeds may reside in a feed line from one reactor to another, a monomer feed line to the reactor, or in a recycle line to and from the same reactor.Type: GrantFiled: July 25, 2016Date of Patent: January 28, 2020Assignee: ExxonMobil Chemical Patents Inc.Inventors: Christopher G. Bauch, Todd S. Edwards, Daniel L. Bilbao, Kevin W. Lawson, Blu E. Englehorn
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Patent number: 10442874Abstract: Heterocyclic organic compounds are used as electron donors in conjunction with solid Ziegler-Natta type catalyst in processes in which polyolefins such as polypropylene are produced. The electron donors may be used in the preparation of solid catalyst system, thus serving as “internal electron donors,” or they may be employed during or prior to polymerization with the co-catalyst as “external electron donors.Type: GrantFiled: April 23, 2018Date of Patent: October 15, 2019Assignee: Formosa Plastics Corporation, U.S.A.Inventors: Yiqun Fang, Demin Xu, Ming-Yung Lee
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Patent number: 10427095Abstract: This application is in the field of technologies for desulfurization and demercaptanization of gaseous hydrocarbons. The device includes a catalytic reactor loaded with a catalyst solution in an organic solvent, a means of withdrawal sulfur solution from the reactor into the sulfur-separating unit, and a sulfur-separating unit. The said device has at least means of supplying gaseous hydrocarbon medium to be purified and oxygen-containing gas into the reactor, and a means of outletting the purified gas from the reactor. The sulfur-separation unit includes a means of sulfur extraction. The reactor design and the catalyst composition provide conversion of at least 99.99% of hydrogen sulfide and mercaptans into sulfur and disulfides. The catalyst is composed of mixed-ligand complexes of transition metals. The technical result achieved by use of claimed invention is single-stage purification of gaseous hydrocarbons from hydrogen sulfide and mercaptans with remaining concentration of —SH down up to 0.001 ppm.Type: GrantFiled: December 17, 2018Date of Patent: October 1, 2019Assignee: START-CATALYST LLCInventors: Liudmila Aleksandrovna Tyurina, Alexander Ivanovich Tyurin, Irina Gennadievna Tarkhanova, Alexey Aleksandrovich Tyurin
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Patent number: 10369559Abstract: The present invention relates to a composite catalyst, preparation process thereof, and process for catalyzing the trimerization of butadiene using the composite catalyst. The composite catalyst comprises: (A) a titanium compound catalyst active component, (B) an organometallic compound co-catalyst component, (C) a sulfoxide compound catalyst-modifying component, (D) a monoester compound catalyst-modifying component, and (E) a solvent component. The composite catalyst has advantages of excellent selectivity, high catalytic activity, easy preparation and so on.Type: GrantFiled: May 9, 2013Date of Patent: August 6, 2019Assignees: Wanhua Chemical Group Co., Ltd., Wanhua Chemical (Ningbo) Co., Ltd.Inventors: Lei Qin, Weiqi Hua, Ruihua Cheng, Yuan Li, Baiping Liu, Bingbo Hu
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Patent number: 10364302Abstract: The present invention relates to a novel Group 4 transition metal compound, a method for preparing the compound, a catalyst composition comprising the compound, and a method for preparing a polyolefin comprising performing a polymerization reaction of olefin monomers, in the presence of the catalyst composition. Since the Group 4 transition metal compound of the present invention exhibits an excellent catalytic activity in polyolefin synthesis reactions, as well as having excellent thermal stability, it can be used for polyolefin synthesis reactions at high temperatures, and by changing the type of a central metal and ligand, the weight average molecular weight of synthesized polyolefins and the octene content in the polymer can be controlled. Therefore, it can be effectively used in polyolefin synthesis processes in which grades are controlled.Type: GrantFiled: December 23, 2015Date of Patent: July 30, 2019Assignee: HANWHA CHEMICAL CORPORATIONInventors: Ui Gab Joung, Kil Sagong, Sung Hae Jun, Dong Ok Kim, Hye Ran Park, In Jun Lee
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Patent number: 10337104Abstract: Group 4 transition metal-containing film forming compositions are disclosed comprising Group 4 transition metal precursors having the formula: wherein M is Ti, Zr, or Hf; each A is independently N, Si, B or P; each E is independently C, Si, B or P; m and n is independently 0, 1 or 2; m+n>1; each R is independently a H or a C1-C4 hydrocarbon group; each L is independently a ?1 anionic ligand selected from the group consisting of NR?2, OR?, Cp, amidinate, ?-diketonate, or keto-iminate, wherein R? is a H or a C1-C4 hydrocarbon group; and L? is NR? or O, wherein R? is a H or a C1-C4 hydrocarbon group. Also disclosed are methods of synthesizing and using the disclosed precursors to deposit Group 4 transition metal-containing films on one or more substrates via vapor deposition processes.Type: GrantFiled: December 30, 2016Date of Patent: July 2, 2019Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Satoko Gatineau, Wontae Noh, Daehyeon Kim, Julien Gatineau, Jean-Marc Girard
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Patent number: 10294311Abstract: A process may include contacting ethylene monomer with Ziegler-Natta catalyst to form polyethylene. The Ziegler-Natta catalyst may be formed by contacting an alkyl magnesium compound with an alcohol and a metal reagent to form a blend, and contacting the blend with a first agent to form a solution of reaction product “A”. The solution of reaction product “A” may be contacted with a second agent to form a solid reaction product “B”, and the solid reaction product “B” may be contacted with a third agent to form a solid reaction product “C”. The solid reaction product “C” may be contacted with a fourth agent to form a solid reaction product “D”, and the solid reaction product “D” may be contacted with a fifth agent to form a catalyst component.Type: GrantFiled: March 12, 2018Date of Patent: May 21, 2019Assignee: FINA TECHNOLOGY, INC.Inventors: Lei Zhang, David Knoeppel
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Patent number: 10287374Abstract: A method of reducing drag in a conduit. The method includes producing ultra high molecular weight (UHMW) C4-C30 ?-olefin drag reducing agent (DRA) and introducing the UHMW C4-C30 ?-olefin polymer DRA into the conduit to reduce drag in the conduit. The catalyst consists essentially of at least one tertiary monophenyl amine selected from the group consisting of N,N-diethylaniline, N-ethyl-N-methylparatolylamine, N,N-dipropylaniline, N,N-diethylmesitylamine, and combinations thereof; at least one titanium halide having a formula TiXm, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and at least one cocatalyst having a formula AlRnY3-n where R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-20. Further, the catalyst is absent of a carrier or support.Type: GrantFiled: October 12, 2017Date of Patent: May 14, 2019Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum & MineralsInventors: Muhammad Atiqullah, Abdel Salam Al-Sarkhi, Faisal Mohammed Al-Thenayan, Abdullah Raddad Al-Malki, Wei Xu, Anwar Hossaen
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Patent number: 10221261Abstract: A process for the preparation of high purity propylene polymers carried out in the presence of a catalyst comprising the product obtained by contacting: (a) a solid catalyst component comprising Mg, Ti and at least a first internal electron donor compound (1ID) selected among the succinates and a second internal electron donor compound (2ID) selected among the 1,3-diethers, wherein the molar ratio of first internal donor over second internal donor 1ID:2ID is comprised between 4:6 and 9:1, with (b) an organo-aluminum compound, and optionally with (c) an external electron donor compound, said process being carried out at a temperature equal or higher than 78° C. and by employing a molar ratio of organo-aluminum compound over solid catalyst component (b):(a) of lower than 5.Type: GrantFiled: September 17, 2012Date of Patent: March 5, 2019Assignee: Basell Poliolefine Italia S.r.l.Inventors: Monica Galvan, Roberto Pantaleoni, Ofelia Fusco, Benedetta Gaddi, Andreas Neumann, Antonio Mazzucco, Gianni Collina, Gabriella Sartori
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Patent number: 10167350Abstract: Catalyst systems and methods for making and using the same are provided. The catalyst systems can include a plurality of silica particles and a metallocene catalyst and an activator supported on the plurality of silica particles. The polymerization catalysts have a particle size distribution in which about 10% of the particles have a size less than about 17 to about 23 micrometers, about 50% of the particles have a size less than about 40 to about 45 micrometers, and about 90% of the particles have a size less than about 72 to about 77 micrometers.Type: GrantFiled: December 5, 2016Date of Patent: January 1, 2019Assignee: Univation Technologies, LLCInventors: C. Dale Lester, Kevin J. Cann, Phuong A. Cao, Abarajith S. Hari, F. David Hussein, Wesley R. Mariott, John H. Moorhouse, Richard B. Pannell, Bruce J. Savatsky, Daniel P. Zilker, Jr., Mark G. Goode
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Patent number: 10059727Abstract: A flame retardant filler having brominated silica particles, for example, imparts flame retardancy to manufactured articles such as printed circuit boards (PCBs), connectors, and other articles of manufacture that employ thermosetting plastics or thermoplastics. In this example, brominated silica particles serve both as a filler for rheology control (viscosity, flow, etc.) and a flame retardant. In an exemplary application, a PCB laminate stack-up includes conductive planes separated from each other by a dielectric material that includes a flame retardant filler comprised of brominated silica particles. In an exemplary method of synthesizing the brominated silica particles, a monomer having a brominated aromatic functional group is reacted with functionalized silica particles (e.g., isocyanate, vinyl, amine, or epoxy functionalized silica particles).Type: GrantFiled: December 5, 2017Date of Patent: August 28, 2018Assignee: International Business Machines CorporationInventors: Dylan J. Boday, Joseph Kuczynski, Robert E. Meyer, III
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Patent number: 9991522Abstract: A catalyst particle (1) for a fuel cell according to the present invention includes: a metal particle (2) composed of either one of metal other than noble metal and an alloy of the metal other than the noble metal and the noble metal; and a noble metal layer (3) that is provided on a surface of the metal particle and has a thickness of 1 nm to 3.2 nm. By the fact that the catalyst particle for a fuel cell has such a configuration, the catalyst particle can enhance catalytic activity while reducing an amount of the noble metal. The catalyst particle (1) for a fuel cell according to the present invention can enhance the catalytic activity while reducing the amount of the noble metal.Type: GrantFiled: January 22, 2014Date of Patent: June 5, 2018Assignee: NISSAN MOTOR CO., LTD.Inventors: Kazuki Arihara, Hiroyuki Tanaka
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Patent number: 9969826Abstract: A method of producing ultra high molecular weight (UHMW) C4-C30 ?-olefin drag reducing agent (DRA). The method includes polymerizing in a reactor a first ?-olefin monomer in the presence of catalyst and hydrocarbon solvent to produce the DRA. The catalyst consists essentially of at least one tertiary monophenyl amine having a formula R1R2N-aryl, where R1 and R2 are the same or different, and each is a hydrogen, an alkyl, or a cycloalkyl group, where at least one of R1 and R2 contain at least one carbon atom; at least one titanium halide having a formula TiXm, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and at least one cocatalyst having a formula AlRnY3-n where R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-20. Further, the catalyst is absent of a carrier or support.Type: GrantFiled: November 11, 2016Date of Patent: May 15, 2018Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum & MineralsInventors: Muhammad Atiqullah, Abdel Salam Al-Sarkhi, Faisal Mohammed Al-Thenayan, Abdullah Raddad Al-Malki, Wei Xu, Anwar Hossaen
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Patent number: 9951152Abstract: Heterocyclic organic compounds are used as electron donors in conjunction with solid Ziegler-Natta type catalyst in processes in which polyolefins such as polypropylene are produced. The electron donors may be used in the preparation of solid catalyst system, thus serving as “internal electron donors”, or they may be employed during or prior to polymerization with the co-catalyst as “external electron donors”.Type: GrantFiled: November 1, 2013Date of Patent: April 24, 2018Assignee: Formosa Plastics Corporation, U.S.A.Inventors: Yiqun Fang, Demin Xu, Ming-Yung Lee
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Patent number: 9944726Abstract: A solid catalyst component for the (co)polymerization of ?-olefins having general formula (I): ZrnMAlxClyMgp??(I) wherein: M represents titanium (Ti), vanadium (V), or mixtures thereof; n is a number ranging from 0.01 to 2; x is a number ranging from 0.1 to 4; y is a number ranging from 5 to 53; p is a number ranging from 0 to 15; obtained by means of a process comprising putting at least one zirconium arene in contact with at least one metal compound and, optionally, with at least one compound of magnesium. Said solid catalyst component can be advantageously used as a solid component in a catalyst for the (co)polymerization of ?-olefins. Said catalyst can be advantageously used in a process for the (co)polymerization of ?-olefins.Type: GrantFiled: November 4, 2015Date of Patent: April 17, 2018Assignee: Versalis S.P.A.Inventors: Anna Sommazzi, Francesco Masi, Guido Pampaloni, Filippo Renili, Fabio Marchetti, Anna Maria Raspolli Galletti
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Patent number: 9944724Abstract: A process may include contacting ethylene monomer with Ziegler-Natta catalyst to form polyethylene. The Ziegler-Natta catalyst may be formed by contacting an alkyl magnesium compound with an alcohol and a metal reagent to form a blend, and contacting the blend with a first agent to form a solution of reaction product “A”. The solution of reaction product “A” may be contacted with a second agent to form a solid reaction product “B”, and the solid reaction product “B” may be contacted with a third agent to form a solid reaction product “C”. The solid reaction product “C” may be contacted with a fourth agent to form a solid reaction product “D”, and the solid reaction product “D” may be contacted with a fifth agent to form a catalyst component.Type: GrantFiled: June 2, 2016Date of Patent: April 17, 2018Assignee: Fina Technology, Inc.Inventors: Lei Zhang, David Knoeppel
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Patent number: 9738736Abstract: Solid catalyst components are disclosed including titanium, magnesium, halogen and an internal electron donor compound having a combination of internal electron donor compounds including at least one 1,8-naphthyl diester and at least one secondary internal donor compound selected from alkyl 2-alkoxy-1-naphthoates, alkyl 2-alkoxybenzoates, alkyl 2,6-dialkoxybenzoates, (2-alkoxyphenyl)(pyrrolidin-1-yl)alkanones, dialkyl phthalates, alkyl alkionates, and dialkyl cyclohexane-1,2-dicarboxylates, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. Further, methods of making the catalyst components and the catalyst systems are disclosed as well as methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.Type: GrantFiled: August 12, 2014Date of Patent: August 22, 2017Assignee: W. R. GRACE & CO.-CONNInventors: Vladimir P. Marin, Ahmed Hintolay, Main Chang, Neil O'Reilly, Binh Thanh Nguyen
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Patent number: 9725530Abstract: The present invention relates to a supported hybrid vanadium-chromium-based catalyst, characterized in the catalyst is supported on a porous inorganic carrier and a V active site and a inorganic Cr active site are present on the porous inorganic carrier at the same time. The present invention further relates to a process for producing a supported hybrid vanadium-chromium-based catalyst. The invention also provides the preparation method of the catalyst, titanium or fluorine compounds, vanadium salt and chromium salt according to the proportion, different methods of sequence and load on the inorganic carrier, after high temperature roasting, still can further add organic metal catalyst promoter prereduction activation treatment on it. The catalyst of the present invention can be used for producing ethylene homopolymers and ethylene/?-olefin copolymers.Type: GrantFiled: April 19, 2013Date of Patent: August 8, 2017Assignee: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Ruihua Cheng, Boping Liu, Xin Xue, Yun He, Xuan Dong, Xuelian He, Zhen Liu, Weiwei Liu, Lisong Wang, Qiaoqiao Sun
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Patent number: 9670294Abstract: A method for producing a solid catalyst component for olefin polymerization produces a novel solid catalyst component for olefin polymerization that achieves excellent olefin polymerization activity and activity with respect to hydrogen during polymerization, and can produce an olefin polymer that exhibits a high MFR, high stereoregularity, and excellent rigidity.Type: GrantFiled: July 10, 2013Date of Patent: June 6, 2017Assignee: TOHO TITANIUM CO., LTD.Inventors: Motoki Hosaka, Noriaki Nakamura, Toshihiko Sugano
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Patent number: 9637571Abstract: The invention relates to a catalyst system comprising I. a solid reaction product obtained by reaction of: (a) a hydrocarbon solution comprising (1) an organic oxygen containing magnesium compound or a halogen containing magnesium compound and (2) an organic oxygen containing titanium compound and (b) a mixture comprising a metal compound having the formula MeRnX3-n wherein X is a halogenide, Me is a metal of Group III of Mendeleev's Periodic System of Chemical Elements, R is a hydrocarbon radical containing 1-10 carbon atoms and 0?n?3 and a silicon compound of formula RmSiCl4-m wherein 0?m?2 and R is a hydrocarbon radical containing 1-10 carbon atoms wherein the molar ratio of metal from (b): titanium from (a) is lower then 1:1 and II. an organoaluminium compound having the formula AlR3 in which R is a hydrocarbon radical containing 1-10 carbon atoms.Type: GrantFiled: March 10, 2009Date of Patent: May 2, 2017Assignee: SAUDI BASIC INDUSTRIES CORPORATIONInventors: Nicolaas Hendrika Friederichs, Raymond Gerlofsma
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Patent number: 9587040Abstract: 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: GrantFiled: April 13, 2012Date of Patent: March 7, 2017Assignee: Basell Poliolefine Italia S.r.l.Inventors: Benedetta Gaddi, Daniele Evangelisti, Gianni Collina
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Patent number: 9512246Abstract: A process for the preparation of a polypropylene in a sequential polymerization process including a pre-polymerization reactor and at least two polymerization reactors connected in series. The polymerization in the at least two polymerization reactors takes place in the presence of a Ziegler-Natta catalyst. The Ziegler-Natta catalyst includes (a) a pro-catalyst that has a compound of a transition metal, a compound of a metal which metal is selected from one of the groups 1 to 3 of the periodic table (IUPAC), and an internal electron donor, (b) a co-catalyst, and (c) an external donor. The Ziegler-Natta catalyst is present in the pre-polymerization reactor. Ethylene and propylene are fed to the pre-polymerization reactor in a feed rate ratio of 0.5 to 10.0 g/kg.Type: GrantFiled: July 30, 2013Date of Patent: December 6, 2016Assignee: Borealis AGInventors: Wolfgang Neissl, Dietrich Gloger, Thomas Horill, Martina Sandholzer, Gregory Potter
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Patent number: 9505856Abstract: Methods for preparing a fluorided chromium catalyst can include a step of calcining a supported chromium catalyst at a peak calcining temperature to produce a calcined supported chromium catalyst, followed by contacting the calcined supported chromium catalyst at a peak fluoriding temperature with a vapor comprising a fluorine-containing compound to produce the fluorided chromium catalyst. The peak fluoriding temperature can be at least 50° C. less, and often from 200° C. to 500° C. less, than the peak calcining temperature. Polymers produced using the fluorided chromium catalyst can have a beneficial combination of higher melt index, narrower molecular weight distribution, and lower long chain branch content.Type: GrantFiled: January 13, 2016Date of Patent: November 29, 2016Assignee: Chevron Phillips Chemical Company LPInventors: Eric D. Schwerdtfeger, Kathy S. Clear, Max P. McDaniel
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Patent number: 9434796Abstract: Disclosed herein are catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present catalyst compositions include an internal electron donor with a compounded alkoxyalkyl ester and optionally a mixed external electron donor. The present catalyst compositions improve catalyst selectivity, improve catalyst activity, and/or improve hydrogen response. Propylene-based polymer produced from the present catalyst composition has a melt flow rate greater than 10 g/10 min.Type: GrantFiled: December 1, 2011Date of Patent: September 6, 2016Assignee: W. R. Grace & Co.-Conn.Inventors: Linfeng Chen, Kelly Gonzalez
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Patent number: 9382342Abstract: Disclosed herein are catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present catalyst compositions contain an internal electron donor of an alkoxyalkyl 2-propenoate and optionally a mixed external electron donor. The present catalyst compositions improve catalyst selectivity and polymer stiffness. Polypropylene homopolymer produced from the present catalyst composition has a xylene solubles content less than 4 wt % and a TMF greater than 172.0° C.Type: GrantFiled: December 2, 2011Date of Patent: July 5, 2016Assignee: W. R. Grace & Co.-Conn.Inventors: Linfeng Chen, Tak W. Leung, Tao Tao
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Patent number: 9333487Abstract: The catalytic composition for the electrochemical reduction of carbon dioxide is a metal oxide supported by multi-walled carbon nanotubes. The metal oxide may be nickel oxide (NiO) or tin dioxide (SnO2). The metal oxides form 20 wt % of the catalyst. In order to make the catalysts, a metal oxide precursor is first dissolved in deionized water to form a metal oxide precursor solution. The metal oxide precursor solution is then sonicated and the solution is impregnated in a support material composed of multi-walled carbon nanotubes to form a slurry. The slurry is then sonicated to form a homogeneous solid solution. Solids are removed from the homogeneous solid solution and dried in an oven for about 24 hours at a temperature of about 110° C. Drying is then followed by calcination in a tubular furnace under an argon atmosphere for about three hours at a temperature of 450° C.Type: GrantFiled: November 12, 2014Date of Patent: May 10, 2016Assignees: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGYInventors: Saleem Ur Rahman, Shakeel Ahmed, Mohammad Mozahar Hossain, Shahid Muhammad Bashir
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Patent number: 9221936Abstract: A polymerization process is disclosed, including: polymerizing an olefin to form an olefin-based polymer in a polymerization reactor; and introducing a hindered amine light stabilizer to the polymerization reactor. The process may further comprise monitoring static in the polymerization reactor; maintaining the static at a desired level by use of a hindered amine light stabilizer, the hindered amine light stabilizer present in the reactor in the range from about 0.1 to about 500 ppmw, based on the weight of polymer produced by the process.Type: GrantFiled: December 18, 2012Date of Patent: December 29, 2015Assignee: Univation Technologies, LLCInventors: Chi-I Kuo, Ghanshyam Ganu H. Patel, R. Eric Pequeno, Bruce J. Savatsky, F. David Hussein
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Patent number: 9145495Abstract: Propylene homopolymers or copolymers containing up to 5.0 wt % of alpha-olefin units having from 2 to 8 carbon atoms other than propylene, characterized in that said propylene homopolymers or copolymers have Polydispersity Index value higher than 15, Melt Strength higher than 1.50 cN at 230° C. and Melt Flow Rate (ISO1133, 230° C./2.16 Kg) from 0.01 to 20 g/10 min.Type: GrantFiled: June 26, 2006Date of Patent: September 29, 2015Assignee: Basell Poliolefine Italia S.r.l.Inventors: Camillo Cagnani, Piet Roose, Cees Besems
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Patent number: 9040444Abstract: A semi-continuous process and system thereof, for the synthesis of a narrow particle size distribution Zeigler Natta procatalyst for use in the manufacture of polyolefins. The process comprises: (a) mixing a reaction mixture containing a titanium compound; (b) charging a first reactor with said reaction mixture; (c) removing excess reactants from said first reactor as a filtrate; (d) feeding said filtrate to at least one further reactor; and continuously removing excess reactants from said at least further reactor.Type: GrantFiled: December 14, 2010Date of Patent: May 26, 2015Assignee: Reliance Industries LimitedInventors: Kamlesh Singala, Saurabh Singh, Virendrakumar Gupta
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Patent number: 9034781Abstract: Provided are a solid catalyst for propylene polymerization and a method for preparing the same, specifically a solid catalyst for propylene polymerization which does not contain any environmentally harmful material and can produce a polypropylene having excellent stereoregularity with a high production yield, and a method for preparing the catalyst.Type: GrantFiled: September 2, 2011Date of Patent: May 19, 2015Assignee: SAMSUNG TOTAL PETROCHEMICALS CO., LTD.Inventors: Sang Yull Kim, Jin Woo Lee, Eun Il Kim, Joon Ryeo Park
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Patent number: 9029285Abstract: A catalyst including: a support, the support including a mixture of SiO2 and ZrO2; an active ingredient including copper; a first additive including a metal, an oxide thereof, or a combination thereof; and a second additive including Li, Na, K, or a combination thereof. The metal is Mg, Ca, Ba, Mn, Fe, Co, Zn, Mo, La, or Ce. Based on the total weight of the catalyst, the weight percentages of the different components are as follows: SiO2=50-90 wt. %; ZrO2=0.1-10 wt. %; copper=10-50 wt. %; the first additive=0.1-10 wt. %; and the second additive=0.1-5 wt. %.Type: GrantFiled: May 28, 2013Date of Patent: May 12, 2015Assignee: Tianjin UniversityInventors: Xinbin Ma, Jing Lv, Yujun Zhao, Shengping Wang, Jinlong Gong, Baowei Wang, Zhenhua Li, Yan Xu
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Patent number: 9029284Abstract: A solid particulate catalyst free from an external carrier comprising: (i) a complex of formula (I): wherein M is zirconium or hafnium; each X is a sigma ligand; L is a divalent bridge selected from —R?2C—, —R?2C—CR?2—, —R?2Si—, —R?2Si—SiR?2—, —R?2Ge—, wherein each R? is independently a hydrogen atom, C1-C20-alkyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl; each R1 independently is hydrogen or a linear or branched C1-C20 hydrocarbyl radical optionally containing one or more heteroatoms from groups 14-16 of the Periodic Table of the Elements; each R2 and R3 taken together form a 4-7 membered ring condensed to the benzene ring of the indenyl moiety, said ring optionally containing heteroatoms from groups 14-16, each atom forming said ring being optionally substituted with at least one R18 radical; each R18 is the same or different and may be a C1-C20 hydrocarbyl radical optionally containing one or more heteroatoms belonging to groups 14-16; each R4 is a hydrogen atoType: GrantFiled: December 21, 2010Date of Patent: May 12, 2015Assignee: Borealis AGInventors: Luigi Resconi, Pascal Castro, Lauri Huhtanen
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Publication number: 20150126694Abstract: The present invention relates to regular shaped magnesium particles containing attrition resistant precursors and procatalysts thereof and processes for their synthesis and their use in the manufacture of polyolefins. More particularly, the present invention relates to a process for the synthesis of a said precursor particles which give highly active and improved surface area procatalysts for producing high bulk density polyolefin resins containing low fines and capable of incorporating high rubber content. In particular, the present invention relates to process for the synthesis of an attrition resistant precursors to prepare an attrition resistant Zeigler Natta procatalysts synthesized by using the precursors and to the polyolefin resin synthesized using the said procatalysts.Type: ApplicationFiled: January 14, 2015Publication date: May 7, 2015Applicant: RELIANCE INDUSTRIES LIMITEDInventors: Virendrakumar GUPTA, Saurabh SINGH, Jomichan JOSEPH, Kamlesh J. SINGALA, Bhavesh K. DESAI
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Patent number: 9018129Abstract: Disclosed is an exhaust gas purifying catalyst in which grain growth of a noble metal particle supported on a support is suppressed. Also disclosed is a production process for producing an exhaust gas purifying catalyst. The exhaust gas purifying catalyst comprises a crystalline metal oxide support and a noble metal particle supported on the support, wherein the noble metal particle is epitaxially grown on the support, and wherein the noble metal particle is dispersed and supported on the outer and inner surfaces of the support. The process for producing an exhaust gas purifying catalyst comprises masking, in a solution, at least a part of the surface of a crystalline metal oxide support by a masking agent, introducing the support into a noble metal-containing solution containing a noble metal, and drying and firing the support and the noble metal-containing solution to support the noble metal on the support.Type: GrantFiled: December 12, 2013Date of Patent: April 28, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masao Watanabe, Oji Kuno, Nobusuke Kabashima, Keisuke Kishita, Noboru Otake, Hiromochi Tanaka
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Publication number: 20150112021Abstract: A method for producing a polymer containing silica that does not involve long kneading time, and a polymer composition having an intended low heat generation property. A polymerization catalyst composition is produced by mixing and aging a second element and a third element, and then adding a first element to the mixture to react the first element with the mixture. The first element contains a compound that contains a rare earth metal element, the second element contains a compound represented by the following formula (X), and the third element contains silica. YR1aR2bR3c (X) (In the formula, Y is a metal; R1 and R2 are hydrogen atoms or hydrocarbon groups; and R3 is a hydrocarbon group, and R1, R2, and R3 are the same as or different from each other, a, b, and c are 0 or 1.Type: ApplicationFiled: April 18, 2013Publication date: April 23, 2015Applicant: BRIDGESTONE CORPORATIONInventors: Junko Matsushita, Shojiro Kaita
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Patent number: 9012107Abstract: The cathode catalyst for a fuel cell includes an RuSe alloy having an average particle size of less than or equal to 6 nm. The cathode catalyst may also include a metal carbide. The RuSe alloy is a highly active amorphous catalyst.Type: GrantFiled: December 14, 2007Date of Patent: April 21, 2015Assignee: Samsung SDI Co., Ltd.Inventors: Alexey Alexandrovichserov, Chan Kwak, Ho-Jin Kweon, Si-Hyun Lee
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Patent number: 9012347Abstract: The present invention relates to a preparation method of a metallocene catalyst. More particularly, the present invention relates to a preparation method of a supported hybrid metallocene catalyst, including the steps of treating a support having a water content of 4 to 7% by weight with trialkyl aluminum at a predetermined temperature; supporting alkyl aluminoxane on the support; and supporting a metallocene compound on the alkyl aluminoxane-supported support. According to the present invention, it is possible to prepare a supported hybrid metallocene catalyst which shows a high activity in the polymerization of olefins and enables the preparation of polyolefins having a high bulk density, by a simple process.Type: GrantFiled: September 28, 2011Date of Patent: April 21, 2015Assignee: LG Chem, Ltd.Inventors: Hyeon-Gook Kim, Ki-Soo Lee, Dae-Sik Hong, Eun-Kyoung Song, Man-Seong Jeon
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Patent number: 8993693Abstract: A Ziegler-Natta catalyzed ethylene copolymer having a novel composition distribution in which comonomers are incorporated into the high molecular weight polymer molecules and distributed evenly among the entire polyethylene chains, and a method for making the same are provided. The resins having a novel composition distribution have controlled molecular weight distribution which is narrower than conventional ZN-ethylene copolymers but broader than single-site catalyzed ethylene copolymers. The resins having a novel composition distribution exhibit a superior tear strength and impact strength.Type: GrantFiled: March 23, 2012Date of Patent: March 31, 2015Assignee: Formosa Plastics CorporationInventors: Honglan Lu, Guangxue Xu
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Publication number: 20150080541Abstract: The present invention provides a new process for preparing a catalyst for the gas phase polymerization of olefins wherein the sequence of addition of the catalyst components and the selection of the said components provides a catalyst composition which exhibits a superior response to hydrogen, a surprisingly high productivity and an improved activity profile. The catalyst consists of compounds of a group IV transition metal, Mg, C1 and A1 supported on a silica support.Type: ApplicationFiled: April 16, 2013Publication date: March 19, 2015Inventors: Fabien Bini, Paul Fiasse, Luc Girardot, Benoit Koch
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Patent number: 8981023Abstract: This invention relates to a supported nonmetallocene catalyst and preparation thereof. The supported nonmetallocene catalyst can be produced with a simple and feasible process and is characterized by an easily controllable polymerization activity. This invention further relates to use of the supported nonmetallocene catalyst in olefin homopolymerization/copolymerization, which is characterized by a lowered assumption of the co-catalyst as compared with the prior art.Type: GrantFiled: October 13, 2010Date of Patent: March 17, 2015Assignees: China Petroleum & Chemical Corp., Sinopec Yangzi Petrochemical Co. Ltd.Inventors: Hongping Ren, Chuanfeng Li, Xiaoli Yao, Feng Guo, Zhonglin Ma, Haibin Chen, Kaixiu Wang, Jingwei Liu, Yaming Wang
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Publication number: 20150073108Abstract: The present invention relates to a high surface area silicon derivative free magnesium-titanium catalyst system for ethylene polymerization comprising: magnesium mixed alkoxide and titanium chloride. The present invention also provides a simple process for the preparation of high surface area silicon derivative free magnesium-titanium catalyst system for ethylene polymerization by reacting magnesium alkoxide precursor with titanium compound using dialkyl dialkoxy silane as external donor. The invention further relates to the process for ethylene polymerization using the silicon derivative free magnesium-titanium catalyst system and polyethylene produced by the catalyst system having narrow molecular weight distribution and higher bulk density.Type: ApplicationFiled: July 26, 2012Publication date: March 12, 2015Applicant: Reliance Industries LimitedInventors: Harshad Ramdas Patil, Virendrakumar Gupta, Ajay Vinoklal Kothari
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Publication number: 20150065668Abstract: This invention relates to racemic bridged bis(indenyl)metallocene transition metal compounds, rac-directing metallation reagents and a process to produce the racemic bridged bis(indenyl)metallocene transition metal compounds using the rac-directing metallation regents.Type: ApplicationFiled: August 4, 2014Publication date: March 5, 2015Inventor: Glen E. Alliger
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Patent number: 8962774Abstract: Regular shaped magnesium particles containing attrition resistant precursors and procatalysts thereof and processes for their synthesis and their use in the manufacture of polyolefins are described. A process for the synthesis of precursor particles which give highly active and improved surface area procatalysts for producing high bulk density polyolefin resins containing low fines and capable of incorporating high rubber content are described. A process for the synthesis of an attrition resistant precursors to prepare an attrition resistant Zeigler Natta procatalysts synthesized by using the precursors and to the polyolefin resin synthesized using the procatalysts is also described.Type: GrantFiled: July 11, 2011Date of Patent: February 24, 2015Assignee: Reliance Industries LimitedInventors: Virendrakumar Gupta, Saurabh Singh, Jomichan Joseph, Kamlesh J. Singala, Bhavesh K. Desai
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Patent number: 8962509Abstract: Process for the preparation of a solid catalyst system (CS) comprising the steps of preparing a liquid clathrate (LC) comprising (a) a lattice (L) being the reaction product of (i) aluminoxane (A), (ii) an organometallic compound (O) of a transition metal (M) of Group 3 to 10 of the Periodic Table (IUPAC 2007) or of an actinide or lanthanide, and (i) a compound (B) being effective to form with the aluminoxane (A) and the organometallic compound (O) the lattice (L), and (b) a guest (G) being an hydrocarbon compound (HC), and subsequently precipitating said liquid clathrate (LC) obtaining said solid catalyst system (SC).Type: GrantFiled: April 28, 2011Date of Patent: February 24, 2015Assignee: Borealis AGInventors: Kalle Kallio, Marja Mustonen, Pertti Elo, Peter Denifl, John Severn
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Patent number: 8956989Abstract: The present invention provides unimolecular metal complexes having increased activity in the copolymerization of carbon dioxide and epoxides. Also provided are methods of using such metal complexes in the synthesis of polymers. According to one aspect, the present invention provides metal complexes comprising an activating species with co-catalytic activity tethered to a multidentate ligand that is coordinated to the active metal center of the complex.Type: GrantFiled: January 31, 2013Date of Patent: February 17, 2015Assignee: Novomer, Inc.Inventors: Scott D. Allen, Anna E. Cherian, Chris A. Simoneau, Jay J. Farmer, Geoffrey W. Coates, Alexei Gridnev, Robert E. LaPointe
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Patent number: 8957169Abstract: This invention relates to a supported nonmetallocene catalyst and preparation thereof. The supported nonmetallocene catalyst can be produced with a simple and feasible process and is characterized by an easily controllable polymerization activity. This invention further relates to use of the supported nonmetallocene catalyst in olefin homopolymerization/copolymerization, which is characterized by a lowered assumption of the co-catalyst as compared with the prior art.Type: GrantFiled: October 13, 2010Date of Patent: February 17, 2015Assignees: China Petroleum & Chemical Corp., Sinopec Yangzi Petrochemical Co. Ltd.Inventors: Xiaoli Yao, Chuanfeng Li, Hongping Ren, Zhonglin Ma, Feng Guo, Kaixiu Wang, Jingwei Liu, Yaming Wang
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Patent number: 8952113Abstract: This invention relates to a supported nonmetallocene catalyst and preparation thereof. The supported nonmetallocene catalyst can be produced with a simple and feasible process and is characterized by an easily controllable polymerization activity. This invention further relates to use of the supported nonmetallocene catalyst in olefin homopolymerization/copolymerization, which is characterized by a lowered assumption of the co-catalyst as compared with the prior art.Type: GrantFiled: October 13, 2010Date of Patent: February 10, 2015Assignees: China Petroleum & Chemical Corp., Sinopec Yangzi Petrochemical Company Ltd.Inventors: Chuanfeng Li, Hongping Ren, Xiaoli Yao, Lin Kan, Bo Liu, Zhonglin Ma, Feng Guo, Kaixiu Wang, Yaming Wang, Lijuan Yang