Two Or More Diverse Transition Metal Atoms In Distinct Compounds Or In The Same Compound Patents (Class 526/113)
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Patent number: 8802803Abstract: A novel polyethylene is devised which polyethylene is particularly advantageous for manufacturing rotomoulded articles.Type: GrantFiled: August 20, 2010Date of Patent: August 12, 2014Assignee: Basell Polyolefine GmbHInventors: Gerd Mannebach, Heinz Vogt, Fabiana Fantinel, Shahram Mihan, Peter Bisson, Cees Besems, Gerhardus Meier, Ulf Schüller, Barbara Gall, Iakovos Vittorias, Manfred Hecker, Michael Olmscheid
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Patent number: 8802584Abstract: A supported catalyst system comprising a phosphinimine ligand containing catalyst on a porous inorganic support treated with a metal salt has improved reactor continuity in a dispersed phase reaction in terms of initial activation and subsequent deactivation. The resulting catalyst has a lower consumption of ethylene during initiation and a lower rate of deactivation. Preferably the catalyst is used with an antistatic agent.Type: GrantFiled: March 27, 2012Date of Patent: August 12, 2014Assignee: Nova Chemicals (International) S.A.Inventors: Lee Douglas Henderson, Peter Phung Minh Hoang, Ian Ronald Jobe, Xiaoliang Gao
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Publication number: 20140213744Abstract: A catalyst composition comprising (i) a metal salt complex of an imine bis(phenol) compound characterized by Structure 1: Wherein O and N represent oxygen and nitrogen respectively; R comprises a halogen, a hydrocarbyl group, or a substituted hydrocarbyl group; R2 and R3 can each independently be hydrogen, a halogen, a hydrocarbyl group, or a substituted hydrocarbyl group; and Q is a donor group; and (ii) a metallocene complex.Type: ApplicationFiled: January 29, 2013Publication date: July 31, 2014Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: Mark L. HLAVINKA, Qing YANG
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Patent number: 8785574Abstract: According to the invention, a single or plural kinds of bridged metallocene compounds having differing cyclopentadienyl-derived groups afford macromonomers that are a source of long-chain branches and simultaneously catalyze the repolymerization of the macromonomers into olefin polymers having a large number of long-chain branches, small neck-in in the T-die extrusion, small take-up surge and superior mechanical strength. The olefin polymerization catalysts and the polymerization processes can efficiently produce the olefin polymers.Type: GrantFiled: December 20, 2013Date of Patent: July 22, 2014Assignees: Mitsui Chemicals, Inc., Prime Polymer Co., Ltd.Inventors: Hideki Bando, Yasuo Satoh, Takashi Yukita, Yasuyuki Harada, Yoshiho Sonobe, Yasushi Tohi, Yusuke Sekioka, Masao Suzuki, Daisuke Tanifuji
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Patent number: 8772521Abstract: Metal alkyl-arene having general formula (I) or (Ia): M (?6-arene)2AlqXrRs (I) M (?6-arene)AlqXrRs (Ia) wherein: —M represents zirconium (Zr), hafnium (Hf), or mixtures thereof, preferably zirconium; —arene represents a benzene, or a benzene 10 substituted with from 1 to 6 linear or branched C1-C6 alkyl groups, or mixtures thereof; —X represents a halogen atom selected from chlorine, bromine, fluorine, iodine, preferably chlorine; —R represents a linear or branched C1-C15 alkyl group; —q is a number ranging from 2 to 6, preferably 3 for a metal alkyl-arene having general formula (I), 2 for a metal alkyl-arene having general formula (Ia); —r is a number ranging from 1 to 20, preferably 9 for a metal alkyl-arene having general formula (I), 6 for a metal alkyl-arene having general formula (Ia); —s is a number ranging from 1 to 6, preferably 2. Said metal alkyl-arene can be advantageously used for the preparation of solid components of catalysts for the (co)polymerization of ?-olefins.Type: GrantFiled: December 23, 2011Date of Patent: July 8, 2014Assignee: Versalis S.p.A.Inventors: Guido Pampaloni, Filippo Renili, Anna Sommazzi, Fabio Marchetti, Francesco Masi, Mario Polesello
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Publication number: 20140179883Abstract: The present invention provides metal-containing sulfated activator-supports, and polymerization catalyst compositions employing these activator-supports. Methods for making these metal-containing sulfated activator-supports and for using such components in catalyst compositions for the polymerization of olefins are also provided.Type: ApplicationFiled: December 20, 2013Publication date: June 26, 2014Applicant: Chevron Phillips Chemical Company LPInventors: Qing Yang, Max P. McDaniel, Tony R. Crain
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Publication number: 20140179882Abstract: The present invention is broadly directed to various methods and systems for gas and liquid phase polymer production. In certain embodiments, the methods are performed in conjunction with a polymerization reactor system such as gas phase reactor system or liquid phase reactor system. The invention is also broadly directed to various systems in which polymer properties are manipulated by addition of DEALE directly to a polymerization reactor system.Type: ApplicationFiled: December 11, 2009Publication date: June 26, 2014Applicant: UNIVATION TECHNOLOGIES, LLCInventors: Mark G. Goode, Kevin J. Cann, Ronald S. Eisinger, Barbara J. Kopp, John H. Moorhouse
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Patent number: 8759243Abstract: Embodiments of the invention generally include multi-component catalyst systems, polymerization processes and heterophasic copolymers formed by the processes. The multi-component catalyst system generally includes a first catalyst component selected from Ziegler-Natta catalyst systems including a diether internal electron donor and a metallocene catalyst represented by the general formula XCpACpBMAn, wherein X is a structural bridge, CpA and CpB each denote a cyclopentadienyl group or derivatives thereof, each being the same or different and which may be either substituted or unsubstituted, M is a transition metal and A is an alkyl, hydrocarbyl or halogen group and n is an integer between 0 and 4.Type: GrantFiled: July 12, 2011Date of Patent: June 24, 2014Assignee: Fina Technology, Inc.Inventors: Tim Coffy, Michel Daumerie, Kenneth Blackmon, William J. Gauthier, Jun Tian, Joseph L. Thorman
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Patent number: 8754177Abstract: The invention relates to a polymerization process, the polymerization process includes contacting a cyclic bridged metallocene catalyst represented by the following formula: LA(A)LBMQn wherein A is a divalent group bound to each of LA and LB; each of LA and LB are bound to M, and each Q is bound to M; LA and LB are independently selected from the group consisting of cyclopentadienyl ligands and substituted cyclopentadienyl ligands; A is a divalent bridging group comprising a heterocyclic ring comprising from 3 to 6 carbon atoms and one silyl, thus forming a 4 to 7 member divalent ring; M is a Group 4, 5, or 6 transition metal; Q is independently a halogen, a hydride, or a hydrocarbyl radical having from 1 to 20 carbon atoms; wherein n is 1 or 2; with an activator, and optionally a support, to form an activated catalyst and, subsequently, contacting the activated catalyst with ethylene and optionally, at least one C3-C8 alpha olefin comonomer.Type: GrantFiled: December 14, 2009Date of Patent: June 17, 2014Assignee: Univation Technologies, LLCInventors: Donna J. Crowther, John F. Szul
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Publication number: 20140163181Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes use a catalyst system containing three metallocene components, often resulting in polymers having a reverse comonomer distribution and a broad and non-bimodal molecular weight distribution.Type: ApplicationFiled: December 6, 2012Publication date: June 12, 2014Applicant: Chevron Phillips Chemical Company LPInventors: Qing Yang, Max P. McDaniel, Tony R. Crain, Youlu Yu, Yongwoo Inn
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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: 8742039Abstract: A method for making a polyolefin composition according to one embodiment includes altering the concentration of the chain transfer agent present in the reactor to control the HMW and LMW fractions of the polyolefin composition.Type: GrantFiled: November 19, 2008Date of Patent: June 3, 2014Assignee: Univation Technologies, LLCInventors: Mark B. Davis, Sun-Chueh Kao, Tae Hoon Kwalk
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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: 8716423Abstract: A novel polyethylene is devised which polyethylene is particularly advantageous for manufacturing rotomoulded articles.Type: GrantFiled: August 20, 2010Date of Patent: May 6, 2014Assignee: Basell Polyolefine GmbHInventors: Gerd Mannebach, Heinz Vogt, Fabiana Fantinel, Shahram Mihan, Peter Bisson, Cees Besems, Gerhardus Meier, Ulf Schüller, Barbara Gall, Iakovos Vittorias, Manfred Hecker, Michael Olmscheid
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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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Publication number: 20140107301Abstract: The present invention provides polymerization processes utilizing an ansa-metallocene catalyst system for the production of olefin polymers. Polymers produced from the polymerization processes have properties that vary based upon the presence or the absence of hydrogen and/or comonomer in the polymerization process.Type: ApplicationFiled: December 18, 2013Publication date: April 17, 2014Applicant: Chevron Phillips Chemical Company LPInventors: Richard M. Buck, Qing Yang, Albert P. Masino, Christopher E. Wittner
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Publication number: 20140094574Abstract: A polyolefin has 1) a density in the range of 0.93 to 0.97 g/cm3, 2) a BOCD (Broad Orthogonal Co-monomer Distribution) index defined by a given equation in the range of 1 to 5, and 3) a molecular weight distribution (weight average molecular weight/number average molecular weight) in the range of 4 to 10. A supported hybrid metallocene catalyst comprises a first metallocene compound represented by a first given formulae, a second metallocene compound represented by one of three given formulae, and a support.Type: ApplicationFiled: December 2, 2013Publication date: April 3, 2014Applicant: LG CHEM, LTD.Inventors: Joon-Hee Cho, Ki-Soo Lee, Yong-Gyu Han, Dae-Sik Hong, Heon-Yong Kwon, Jong-Sang Park, Seon-Kyoung Kim
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Publication number: 20140088274Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes can use a dual catalyst system containing a zirconium or hafnium based metallocene compound and a titanium based half-metallocene compound containing an indenyl group.Type: ApplicationFiled: September 25, 2012Publication date: March 27, 2014Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: Errun Ding, Qing Yang, Youlu Yu, Lloyd W. Guatney, Jim B. Askew
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Publication number: 20140088271Abstract: Methods for controlling the weight ratio of a higher molecular weight component to a lower molecular weight component of an olefin polymer are disclosed. This weight ratio can be increased as polymerization reaction temperature and/or catalyst system residence time are increased.Type: ApplicationFiled: September 24, 2012Publication date: March 27, 2014Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: Qing Yang, Tony R. Crain, Jerry T. Lanier, Jeff S. Fodor
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Patent number: 8674026Abstract: Disclosed are an ethylene polymerization process, a catalyst for use in the process, a production method employing the catalyst, and a product produced thereby. More specifically, disclosed is a process of producing an ethylene copolymer from ethylene and an alpha-olefin comonomer, in which the produced ethylene copolymer has a multimodal molecular weight distribution and excellent processability and physical properties, and thus can increase the value and productivity of products, including pipes and films. Particularly, the produced ethylene copolymer has a trimodal or higher molecular weight distribution or density distribution, and thus, when it is a linear low-density copolymer, it has an excellent effect of improving the impact strength of films, and when it is a medium-density ethylene copolymer, it can be produced into pipes, which have slow crack growth rate and can be used even at high temperature.Type: GrantFiled: December 7, 2011Date of Patent: March 18, 2014Assignee: SK Innovation Co., Ltd.Inventors: Choon Sik Shim, Hyeong Taek Ham, Sung Seok Chae, Dae Ho Shin, Seung Bum Kwon, Jong Sok Hahn, Myung Ahn Ok
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Patent number: 8674041Abstract: A polymerization initiator for reactive monomers and unsaturated polymers which is the reaction product of a metal-organic titanium compound or a metal-organic zirconium compound and pinacol compound is disclosed. Further disclosed are methods for preparing the polymerization initiator and using the polymerization initiator for low temperature curing.Type: GrantFiled: July 20, 2012Date of Patent: March 18, 2014Assignee: Elantas PDG, Inc.Inventors: Thomas James Murray, David L. Vines
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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: 8663897Abstract: According to the present invention, there is provided a polymerizable fluorine-containing sulfonic acid onium salt of the following general formula (2) and a resin obtained by polymerization thereof. It is possible by the use of this sulfonate resin of the present invention to provide a resist composition with high resolution, board depth of focus tolerance (DOF), small line edge roughness (LER) and high sensitivity. In the formula, Z represents a substituted or unsubstituted C1-C6 straight or branched alkylene group, or a divalent moiety in which substituted or unsubstituted C1-C6 straight or branched alkylene groups are bonded in series to a divalent group obtained by elimination of two hydrogen atoms from an alicyclic or aromatic hydrocarbon; R represents a hydrogen atom, a halogen atom, or a C1-C3 alkyl or fluorine-containing alkyl group; and Q+ represents a sulfonium cation or an iodonium cation.Type: GrantFiled: October 8, 2009Date of Patent: March 4, 2014Assignee: Central Glass Company, LimitedInventors: Takashi Masubuchi, Kazunori Mori, Yuji Hagiwara, Satoru Narizuka, Kazuhiko Maeda
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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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Publication number: 20140024789Abstract: A scavenger is used to indirectly control the ratio of polymer components in a polyethylene composition made using a combination catalyst comprising an inorganic chromium catalyst, and a group 4 single site catalyst.Type: ApplicationFiled: September 28, 2012Publication date: January 23, 2014Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventors: Victoria Ker, Peter Phung Minh Hoang, Yan Jiang, Yves Lacombe
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Patent number: 8633286Abstract: A catalyst composition that includes a support material having an improved particle-size distribution is provided. Processes for producing polyolefin composition also are provided. Polymers and films also are provided. An example of a catalyst composition is a supported multi-transition-metal catalyst composition that includes: (a) at least two catalyst components selected from the group consisting of: a nonmetallocene catalyst component and a metallocene catalyst component; (b) a support material that has a D50 of less than about 30 microns and a particle size distribution having a D90/D10 ratio of less than about 6; and (c) an activator.Type: GrantFiled: April 4, 2011Date of Patent: January 21, 2014Assignee: Univation Technologies, LLCInventors: Chi-I Kuo, Tae Hoon Kwalk, Dongming Li, Porter Clarke Shannon
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Patent number: 8633287Abstract: A polymerization process for copolymerizing ethylene and a series of ?-olefins to form a branched polyethylene, in which the series of ?-olefins is generated in-situ by an ethylene oligomerization catalyst, is improved if the oligomerization catalyst has a Schulz-Flory constant of about 0.30 to about 0.55. This makes very little higher molecular weight ?-olefins, which allows for easy removal of unpolymerized ?-olefins from the polyolefin product.Type: GrantFiled: August 17, 2010Date of Patent: January 21, 2014Assignee: E I du Pont de Nemours and CompanyInventor: Joel David Citron
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Publication number: 20130337210Abstract: The disclosed process is for the production of polyethylene by gas phase polymerisation of ethylene in the presence of a supported chromium oxide based catalyst which is modified with an amino alcohol wherein the molar ratio of amino alcohol:chromium ranges between 0.5:1 and 1:1, wherein the support is silica having a surface area (SA) between 250 m2/g and 400 m2/g and a pore volume (PV) between 1.1 cm3/g and less than 2.0 cm3/g and wherein the amount of chromium in the supported catalyst is at least 0.1% by weight and less than 0.5% by weight.Type: ApplicationFiled: June 14, 2013Publication date: December 19, 2013Inventors: Vugar O. Aliyev, Jose Fernando Cevallos-Candau
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Patent number: 8609793Abstract: The present invention provides polymerization processes utilizing a catalyst system containing an ansa-metallocene and a second metallocene compound for the production of olefin polymers.Type: GrantFiled: April 2, 2012Date of Patent: December 17, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Richard M. Buck, Qing Yang, Albert P. Masino, Christopher E. Wittner
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Publication number: 20130324681Abstract: A virgin granular polymer comprising polymer particles wherein at least 90% by weight of the granular polymer particles, have an I21 that is within two standard deviations of a mean I21 of the granular polymer, the ratio of the standard deviation of I21 to the mean of the granular polymer is less than 0.2 and the ratio of the standard error of a linear fit to the mean of the granular polymer is less than 0.1, and further wherein the virgin granular polymer has an I21 less than or equal to 70 and/or further wherein at least 90% by weight of the granular polymer particles, have a density that is within two standard deviations of a mean density of the granular polymer, the ratio of the standard deviation of the mean density of the granular polymer to the mean density of the granular polymer is less than 0.002 and the ratio of the standard error of a linear fit to the mean of the density is less than 0.001, and further wherein the virgin granular polymer has an I21 less than or equal to 70 is provided.Type: ApplicationFiled: December 29, 2011Publication date: December 5, 2013Applicant: UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY LLCInventor: Robert J. Jorgensen
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Patent number: 8598284Abstract: An oxygen-bridged bimetallic complex of the general formula (I) Cp2R1M1-O-M2R22Cp??(I), wherein Cp is independently a cyclopentadienyl, indenyl or fluorenyl ligand which can be substituted, or a ligand isolobal to cyclopentadienyl, R1, R2 independently are halide, linear or branched or cyclic alkyl, aryl, amido, phosphido, alkoxy or aryloxy groups, which can be substituted, M1 is Zr, Ti or Hf, and M2 is Ti, Zn, Zr or a rare earth metal. The complex can be useful as a polymerization catalyst.Type: GrantFiled: September 10, 2010Date of Patent: December 3, 2013Assignee: Georg-August-Universitat GoettingenInventors: Herbert W Roesky, Prabhuodeyara M Gurubasavaraj
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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: 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: 20130289226Abstract: Methods of controlling polymerization reactions using a synergistic amount of hydrogen and an organozinc compound are disclosed. The resulting polymers have lower molecular weights and higher melt flow indices.Type: ApplicationFiled: June 26, 2013Publication date: October 31, 2013Inventors: Errun Ding, Qing Yang, Albert P. Masino, Youlu Yu, Lloyd W. Guatney, Jim B. Askew
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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: 8563674Abstract: Polyethylene which comprises ethylene homopolymers and copolymers of ethylene with ?-olefins and has a molar mass distribution width Mw/Mn of from 6 to 100, a density of from 0.89 to 0.97 g/cm3, a weight average molar mass Mw of from 5000 g/mol to 700 000 g/mol and has from 0.01 to 20 branches/1000 carbon atoms and at least 0.5 vinyl groups/1000 carbon atoms, wherein the 5-50% by weight of the polyethylene having the lowest molar masses have a degree of branching of less than 10 branches/1000 carbon atoms and the 5-50% by weight of the polyethylene having the highest molar masses have a degree of branching of more than 2 branches/1000 carbon atoms, a process for its preparation, catalysts suitable for its preparation and also fibers, moldings, films or polymer blends in which this polyethylene is present.Type: GrantFiled: May 27, 2010Date of Patent: October 22, 2013Assignee: Basell Polyolefine GmbHInventor: Shahram Mihan
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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: 8541520Abstract: The method of making high-density polyethylene with titania-iron nanofillers involves mixing a TiO2/Fe titania-iron nanofiller with a vanadium (III) complex bearing salicylaldiminato ligands polymerization catalyst in a reactor. The reactor is then charged with toluene and heated to a temperature of about 30° C. Following heating, ethylene is fed into the reactor at a fixed pressure, and a methyl aluminum dichloride cocatalyst is added to initiate in situ polymerization. Polymerization is quenched to yield high-density polyethylene with titania-iron nanofillers, which is then washed and dried. Through the addition of a TiO2/Fe nanofiller, the molecular weight, the crystallinity and the melting temperature of high-density polyethylene are all increased, while the polydispersity index (PDI) is decreased.Type: GrantFiled: January 21, 2013Date of Patent: September 24, 2013Assignee: King Fahd University of Petroleum and MineralsInventors: Mamdouh Ahmad Al-Harthi, Omer Yahya Bakather, Sadhan Kumar De, Reyad Awwad Khalaf Shawabkeh
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Publication number: 20130245210Abstract: 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: ApplicationFiled: May 7, 2013Publication date: September 19, 2013Applicant: Chevron Philips 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: 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: 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: 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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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: 8507621Abstract: 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: GrantFiled: October 30, 2012Date of Patent: August 13, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Kumundini C. Jayaratne, Michael D. Jensen, Qing Yang
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Patent number: 8507626Abstract: The invention provides a catalyst for producing acrylic acid at high yield for a long time, in a method for producing acrylic acid by catalytic gas phase oxidation of propane and/or acrolein in the presence of molecular oxygen or a molecular oxygen-containing gas. This catalyst comprises a complex oxide containing molybdenum, vanadium and X component (here the X component is at least one element selected from antimony, niobium and tin) as the essential components, and is characterized in that its main peak as measured by X-ray diffractiometry using K? ray of Cu, d=4.00±0.1 angstrom, and in that the particle size of the X component in the catalyst does not exceed 20 ?m.Type: GrantFiled: May 28, 2008Date of Patent: August 13, 2013Assignee: Nippon Shokubai Co., Ltd.Inventors: Naohiro Fukumoto, Toshiya Nishiguchi
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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: 8492498Abstract: A polymer having a density of from about 0.94 g/cm3 to about 0.96 g/cm3 and a primary structure parameter 2 (PSP2 value) of greater than about 8.5, wherein an article formed from the polymer has an environmental stress crack resistance of equal to or greater than about 1000 hours when measured in accordance with ASTM D 1693 condition A. A polymer having at least one lower molecular weight component and at least one higher molecular weight component and having a PSP2 value of equal to or greater than about 8.5, wherein an article formed from the polymer has an environmental stress crack resistance of greater than about 1000 hours when measured in accordance with ASTM D 1693 condition A.Type: GrantFiled: February 21, 2011Date of Patent: July 23, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Richard M. Buck, Albert P. Masino, Qing Yang, Paul J. DesLauriers, Steven J. Secora, Elizabeth M. Lanier, Guylaine St. Jean, Jon D. Ratzlaff, Christopher E. Wittner
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Patent number: 8470940Abstract: Novel group 4 organometallic compounds, supported on anions by means of at least one covalent metal-oxygen bond, are obtained by reaction of at least one borate or aluminum comprising at least one hydroxy group with at least one group 4 transition metal compound. These compounds are used in a catalytic composition implemented in an olefin oligomerization or polymerization method.Type: GrantFiled: July 3, 2008Date of Patent: June 25, 2013Assignee: IFP Energies nouvellesInventors: Christine Bibal, Catherine Santini, Yves Chauvin, Helene Olivier-Bourbigou, Christophe Vallee