Transition Metal Compound Has At Least One Atom Of P, S, N Or O Therein Patents (Class 526/172)
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Publication number: 20130172500Abstract: A phosphinimine catalyst immobilized on a passivated inorganic oxide support, had high activity at low co-catalyst concentrations and gave, under gas phase polymerization conditions, ethylene copolymer with a high molecular weight. A method of making a passivated silica support involves treatment of silica with an organoaluminum compound, a diorganomagnesium compound and a source of chloride (to make MgCl2) under anhydrous conditions and in the absence of polar solvents.Type: ApplicationFiled: November 21, 2012Publication date: July 4, 2013Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.Inventor: NOVA Chemicals ((International) S.A.
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Publication number: 20130172498Abstract: Catalyst compositions containing N,N-bis[2-hydroxidebenzyl]amine transition metal compounds are disclosed. Methods for making these transition metal compounds and for using such compounds in catalyst compositions for the polymerization or oligomerization of alpha olefins also are provided.Type: ApplicationFiled: December 28, 2011Publication date: July 4, 2013Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: Mark L. Hlavinka, Qing Yang, Brooke L. Small, Youlu Yu
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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
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Patent number: 8461279Abstract: Disclosed is a method for producing a devolatilized polyolefin, wherein the method comprises a step that involves providing a twin screw extruder comprising a resin feeding port, a first molten resin kneading zone, a molten resin partially filled zone which is prevented from being fully filled with molten resin, a second molten resin kneading zone, and a devolatilization zone that are disposed in order from the upstream of a cylinder of the extruder, feeding a polyolefin through the resin feeding port, and feeding water to the molten resin partially filled zone in an amount of 0.01 to 50 parts by weight relative to 100 parts by weight of the polyolefin.Type: GrantFiled: July 2, 2012Date of Patent: June 11, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Hisakatsu Hama, Tetsuro Dobashi
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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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Publication number: 20130137841Abstract: A self-assembled olefin polymerization catalyst comprising a transition metal complex according to formula (I) A-[(L2(MXn)p(MXn-L1(MXn)qMXn—B)r-MXn)y-(L1(MXn)r(MXn-L2(MXn)-MXn-A?)vMXn)w]z-B (I) wherein each M is independently a transition metal selected from the group consisting of Group 3-11 of the periodic table; each X is independently selected from the group consisting of H, halogen, CN, optionally substituted N(Ra)2, OH, optionally substituted C1-C20 alkyl, optionally substituted C1-C20 alkoxy, wherein Ra is independently selected from the group consisting of optionally substituted C1-C20 alkyl, optionally substituted C6-C20 aryl and halogen; A is nothing, L1(MXn)gMXn—, or MXnL1(MXn)gMXn—; A? is nothing, -L1(MXn)g MXn, or -L1(MXn)g; B is nothing, -L2(MXn)h or -L2(MXn)hMXn; g is 0 or an integer of at least 1; h is 0 or an integer of at least 1; p is 0 or an integer of at least 1; q is 0 or an integer of at least 1; r is 0 or an integer of at least 1; t is 0 or an integer of at least 1; u is 0 or an integeType: ApplicationFiled: March 25, 2011Publication date: May 30, 2013Inventor: He Kuan Luo
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Patent number: 8450438Abstract: Metal complexes of polyvalent aryloxyethers appropriately substituted with sterically bulky substituents possess enhanced solubility in aliphatic and cycloaliphatic hydrocarbons and/or when employed as catalyst components for the polymerization of ethylene/?-olefin copolymers, produce products having reduced I10/I2 values.Type: GrantFiled: April 24, 2007Date of Patent: May 28, 2013Assignee: Dow Global Technologies, LLCInventors: Nermeen W. Aboelella, Robert D. Froese, David D. Graf, Wayde V. Konze, Pulikkottil J. Thomas
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Publication number: 20130131295Abstract: This invention relates to Group 4 catalyst compounds containing anionic bidentate nitrogen/oxygen based ligands catalyst compounds useful for polymerization and or oligomerization of unsaturated monomers. The catalyst compounds are particularly useful, with or without activators, to polymerize olefins, particularly ?-olefins, or other unsaturated monomers.Type: ApplicationFiled: November 22, 2011Publication date: May 23, 2013Inventor: Garth R. GIESBRECHT
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Publication number: 20130123444Abstract: The present invention generally relates to a new method of polymerizing ethylene. In one embodiment, the present invention relates to compounds utilized in the polymerization of ethylene and to a synthesis/polymerization method that uses same. In another embodiment branched polyethylene is synthesized from an ethylene monomer using, in this embodiment, at least one nickel iminophosphonamide (PN2) complex. In still another embodiment, the reaction of (phenyl) (triphenylphosphine) (diphenyl-bis (trimethylsilylimino) phosphorato)-nickel, with Rh(acac) (C2H4)2 and ethylene yield a branched polyethylene. In an alternative of this embodiment, the reaction of (phenyl) (triphenylphosphine) (methyl-cis(trimethylsilyl)amino-bis(trimethylsilylimino) phosphorato)-nickel and ethylene, with or without Ni(COD)2, yields a branched polyethylene.Type: ApplicationFiled: November 2, 2012Publication date: May 16, 2013Applicant: THE UNIVERSITY OF AKRONInventor: The University of Akron
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Patent number: 8436113Abstract: There is provided a method for producing copolymer that is composed of ethylene and alpha-olefin by a solution polymerization, and more specifically, a method for producing copolymer that is composed of ethylene and aromatic monomer as main components by using a transition metal catalyst including a cyclopentadiene derivative, and one or more anionic ligand having aryloxy group in which an aryl derivative is substituted at an ortho-positionType: GrantFiled: December 14, 2010Date of Patent: May 7, 2013Assignees: SK Innovations Co., Ltd., SK Global Chemical Co., Ltd.Inventors: Hwan Kyu Jung, Young Wook Kim, Byoung Tak Yim, Ho Seong Lee, Myung Ahn Ok, Jong Sok Hahn, Dong Cheol Shin
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Patent number: 8436115Abstract: The present invention discloses metallic complexes based on carbonylamino fulvene ligands; their method of preparation and their use in the oligomerisation or polymerisation of ethylene and alpha-olefins.Type: GrantFiled: July 16, 2008Date of Patent: May 7, 2013Assignees: Total Petrochemicals Research Feluy, Centre National de la Recherche Scientifique (CNRS)Inventors: Clément Lansalot-Matras, Olivier Lavastre, Sabine Sirol
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Patent number: 8436111Abstract: Embodiments relate to a novel catalyst composition comprising a transition metal-containing compound, a PNP compound, an alkylating agent and a fluorine containing compound. Other embodiments relate to a method of polymerizing a diene monomer in the presence of the novel composition to form a diene-containing polymer having greater than 90% cis content.Type: GrantFiled: October 1, 2009Date of Patent: May 7, 2013Assignee: Bridgestone CorporationInventors: James H. Pawlow, Terrence E. Hogan
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Patent number: 8431660Abstract: The present invention provides a non-metallocene transition metal compound that is easily produced, includes a tetrazol group having the high polymerization activity and high temperature stability in the polymerization of olefins, and a catalytic composition that includes the transition metal compound and a cocatalyst. In addition, the present invention provides a method for efficiently producing an olefin homopolymer or copolymer by using the catalytic composition.Type: GrantFiled: December 5, 2008Date of Patent: April 30, 2013Assignee: LG Chem, Ltd.Inventors: Heon-Yong Kwon, Nicola Maggiarosa, Ki-Soo Lee, Min-Seok Cho, Jong-Sang Park, Joon-Hee Cho, Yong-Ho Lee, Byung-Ryul Lee, Seon-Kyoung Kim, Dae-Sik Hong
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Patent number: 8431663Abstract: A polymer and a method for producing same are provided, which includes a repeating unit represented by the following formula (1): wherein: each of A1, A2, A3, and A4 independently represents a hydrogen atom, a halogen atom, an alkyl group, an aralkyl group, an aryl group, a silyl group, a siloxy group, an alkoxy group, an aralkyloxy group, an aryloxy group, an amino group, an amide group, an imide group, or a hydrocarbon thio group; each of A1, A2, A3, and A4 is independently any of these groups at different carbons to which the each of A1, A2, A3, and A4 is bonded, and A1, A2, A3, and A4 may be bonded to each other; and each of m, n, and k is independently an integer in a range of 2 to 20.Type: GrantFiled: March 25, 2011Date of Patent: April 30, 2013Assignees: Tokyo Institute of Technology, Sumitomo Chemical Company, LimitedInventors: Kohtaro Osakada, Daisuke Takeuchi, Osamu Ihata, Hirofumi Johoji
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Patent number: 8431662Abstract: This invention relates to a polymacromonomer comprising at least one macromonomer and from 0 to 20 wt % of a C2 to C12 comonomer, wherein the macromonomer has vinyl termination of at least 70%, and wherein the polymacromonomer has: a) a g value of less than 0.6, b) an Mw of greater than 30,000 g/mol, c) an Mn of greater than 20,000 g/mol, d) a branching index (g?)vis of less than 0.5, e) less than 25% vinyl terminations, f) at least 70 wt % macromonomer, based upon the weight of the polymacromonomer, g) from 0 to 20 wt % aromatic containing monomer, based upon the weight of the polymacromonomer and h) optionally, a melting point of 50° C. or more. This invention also relates to processes to make such polymacromonomers.Type: GrantFiled: August 20, 2012Date of Patent: April 30, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Patrick Brant, Andrew G. Narvaez, Jr., Donna J. Crowther
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Patent number: 8426539Abstract: The present invention discloses an active supported catalyst system comprising: a) one or more non-metallocene catalyst component; b) an alkylating agent; c) an activating functionalised and fluorinated support. It also discloses a method for preparing said active support and its use in the polymerisation of polar and non polar monomers.Type: GrantFiled: July 26, 2006Date of Patent: April 23, 2013Assignees: Total Petrochemicals Research Feluy, Centre National de la Research Scientifique (CNRS)Inventors: Floran Prades, Roger Spitz, Christophe Boisson, Sabine Sirol, Abbas Razavi
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Patent number: 8426540Abstract: The present invention relates to new tridentate ligand compounds with imino furan units, to a method for manufacturing said compounds and to their use in the preparation of catalysts for the homopolymerization or copolymerization of ethylene and alpha-olefins.Type: GrantFiled: May 30, 2008Date of Patent: April 23, 2013Assignee: Total Petrochemicals Research FeluyInventor: Sabine Sirol
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Patent number: 8426538Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition comprising the contact product of a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. The new resins were characterized by useful properties in impact, tear, adhesion, sealing, extruder motor loads and pressures at comparable melt index values, and neck-in and draw-down.Type: GrantFiled: September 8, 2011Date of Patent: April 23, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Elizabeth A. Benham, Randy L. Muninger, Gary G. Jerdee, Ashish M. Sukhadia, Qing R. Yang, Matthew G. Thorn
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Patent number: 8426535Abstract: A process is disclosed for the preparation of zinc alkyl chain growth products via a catalyzed chain growth reaction of an alpha-olefin on a zinc alkyl, wherein the chain growth catalyst system employs a group 3-10 transition metal, or a group 3 main group metal, or a lanthanide or actinide complex, and optionally a suitable activator. The products can be further converted into alpha-olefins by olefin displacement of the grown alkyls as alpha-olefins from the zinc alkyl chain growth product, or into primary alcohols, by oxidation of the resulting zinc alkyl chain growth product to form alkoxide compounds, followed by hydrolysis of the alkoxides.Type: GrantFiled: June 23, 2010Date of Patent: April 23, 2013Assignee: Ineos Europe LimitedInventors: George Johan Peter Britovsek, Steven A. Cohen, Vernon Charles Gibson
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Publication number: 20130096271Abstract: Use of homogeneous catalytic systems which include as a pre-catalyst a complex of a Group IV metal and a salalen ligand in the polymerization of alpha-olefins, is disclosed. The alpha-olefin polymers obtained are characterized by controlled levels of tacticity. Also disclosed are novel salalen ligands and novel complexes thereof with Group IV metals.Type: ApplicationFiled: June 16, 2011Publication date: April 18, 2013Applicant: Ramot at Tel-Aviv University Ltd.Inventors: Moshe Kol, Konstantin Press, Ad Cohen
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Patent number: 8420756Abstract: The present invention relates to the field of single site catalyst systems based on aromatic BINAM diamine ligands and suitable for oligomerising or polymerising ethylene and alpha-olefins.Type: GrantFiled: April 8, 2008Date of Patent: April 16, 2013Assignee: Total Petrochemicals Research FeluyInventors: Caroline Hillairet, Guillaume Michaud, Sabine Sirol
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Publication number: 20130090400Abstract: In a process for producing polyethylene having a molecular weight of at least 1×106 g/mol as determined by ASTM 4020, ethylene is contacted under polymerization conditions with a slurry of a catalyst composition comprising a particulate support having an average particle size, d50, of less than 58 microns and a Group 4 metal complex of a phenolate ether ligand carried by the support.Type: ApplicationFiled: July 1, 2011Publication date: April 11, 2013Applicant: TICONA GmbHInventors: Dominique Robert, Julia Hufen, Kerstin Lüdtke, Jens Ehlers
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Publication number: 20130071663Abstract: Ultra-high molecular weight polyethylene has a molecular weight greater than 20×106 gm/mol as determined by ASTM 4020 or by size exclusion chromatography (SEC) and is produced by polymerizing ethylene with a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand.Type: ApplicationFiled: July 1, 2011Publication date: March 21, 2013Applicant: TICONA GmbHInventors: Kerstin Lüdtke, Jens Ehlers, Dominique Robert
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Patent number: 8399582Abstract: The present invention relates to the field of single site catalyst systems based on pyridine-iminophenol, pyridine-iminoalcohol or pyridine-iminoamine complexes and suitable for oligomerising or homo- or co-polymerising ethylene and alpha-olefins.Type: GrantFiled: April 17, 2007Date of Patent: March 19, 2013Assignee: Total Petrochemicals Research FeluyInventors: Caroline Hillairet, Guillaume Michaud, Sabine Sirol
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Publication number: 20130066029Abstract: Multi-metallic organometallic complexes that allow performance of olefin based reaction and in particular polymerization of olefins to produce polyolefin polymers, and related methods and systems are described.Type: ApplicationFiled: September 13, 2012Publication date: March 14, 2013Inventors: Madalyn RADLAUER, Joshua D. WIENSCH, Aya K. BUCKLEY, Theodor AGAPIE
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Patent number: 8394901Abstract: An isoprene or butadiene cis 1,4-selective polymerization catalyst system together with its polymerization method is provided. This catalyst system is composed of NCN-imine pincer type rare earth metal complex of formula [2,6-(CH?N—R1)2-4-R2-1-C6H2]LnX2(THF)n and alkylating reagent. In an hydrocarbon solvent or under bulk conditions, at a polymerization temperature in a range of ?20-120° C., the conjugated diene is polymerized by using the catalyst system, to produce polyisoprene and polybutadiene having controllable number-average molecular weight, molecular weight distribution of 3.0 or less than, and cis 1,4-content of 95% or more, even 99% or more. The crude rubber and vulcanized rubber of the polyisoprene have high strength, stretching crystallization capability and transparency.Type: GrantFiled: April 28, 2009Date of Patent: March 12, 2013Assignee: Changchun Institute of Applied Chemistry Chinese Academy of SciencesInventors: Dongmei Cui, Xinli Liu, Dongtao Liu, Wei Gao, Shihui Li, Lingfang Wang, Zhichao Zhang
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Patent number: 8394902Abstract: Pyridyldiamido transition metal complexes are disclosed for use in alkene polymerization.Type: GrantFiled: March 25, 2011Date of Patent: March 12, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: John R. Hagadorn, Renuka N. Ganesh, Dmitry V. Uborsky, Ilya S. Borisov, Ivan V. Pruss, Alexander Z. Voskoboynikov
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Patent number: 8389655Abstract: A process for preparing polymers, especially multi-block copolymer containing therein two or more segments or blocks differing in chemical or physical properties, by contacting propylene, 4-methyl-1-pentene, or other C4-8 ?-olefins and one or more copolymerizable comonomers, especially ethylene in the presence of a composition comprising the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.Type: GrantFiled: April 19, 2011Date of Patent: March 5, 2013Assignee: Dow Global Technologies, LLCInventors: Daniel J. Arriola, Edmund M. Carnahan, David D. Devore, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel
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Patent number: 8389656Abstract: A copolymer and method for providing it are provided, which includes a monomer unit represented by the following formula (1) and an olefin unit: wherein: each of A1, A2, A3, and A4 independently represents a hydrogen atom, a halogen atom, an alkyl group, an aralkyl group, an aryl group, a silyl group, a siloxy group, an alkoxy group, an aralkyloxy group, an aryloxy group, an amino group, an amide group, an imide group, or a hydrocarbon thio group; which group may have a substituent; and each of m, n, and k is independently an integer in a range of 2 to 20.Type: GrantFiled: March 25, 2011Date of Patent: March 5, 2013Assignees: Tokyo Institute of Technology, Sumitomo Chemical Company, LimitedInventors: Kohtaro Osakada, Daisuke Takeuchi, Osamu Ihata, Hirofumi Johoji, Kenji Sogo
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Patent number: 8372927Abstract: The present invention generally relates to metal-ligand complexes, catalysts comprising or prepared from the metal-ligand complexes, processes of catalyzing olefin polymerization reactions with the catalysts to prepare polyolefins, polyolefins prepared thereby, processes of making the metal-ligand complexes and catalysts, and intermediate compounds useful therefor.Type: GrantFiled: August 20, 2009Date of Patent: February 12, 2013Assignee: DOW Global Technologies, LLCInventors: Ruth Figueroa, Jerzy Klosin
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Publication number: 20130030135Abstract: Vinyl-terminated macromonomer oligomerization, namely, a process to produce polymacromonomers comprising contacting a vinyl-terminated macromonomer with a catalyst system capable of oligomerizing vinyl-terminated macromonomer, in the presence of an aluminum containing compound, a zinc containing compound, or a combination thereof, under polymerization conditions to produce a polymacromonomer, and polymacromonomers produced thereby. Also, polymacromonomers having a degree of polymerization greater than 10, a glass transition temperature Tg of less than 60° C., and an Mn of greater than or equal to about 5000 Da.Type: ApplicationFiled: September 27, 2012Publication date: January 31, 2013Applicant: ExxonMobil Chemical Patents Inc.Inventor: ExxonMobil Chemical Patents Inc.
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Patent number: 8362171Abstract: Norbornene monomers with epoxy groups and polymer materials thereof are disclosed. The Norbornene monomers with epoxy groups are prepared by Diels-Alder reaction. The Norbornene monomers with epoxy groups are highly active for ring-opening-metathesis polymerization (ROMP), and the molecular weight and PDI value of the obtained polymers are controllable.Type: GrantFiled: October 5, 2007Date of Patent: January 29, 2013Assignee: National Taiwan University of Science & TechnologyInventors: Der-Jang Liaw, Ching-Cheng Huang
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Patent number: 8362162Abstract: The present invention relates to compositions and processes of making polymers having a controlled molecular weight distribution. The molecular weight distribution is controlled, for example, by controlling the relative monomer concentrations during contact with a pre-catalyst and/or using a catalyst comprising a catalytic amount of a molecule having the structure: wherein M=group 2-8 metal, preferably group 4 as a neutral or charged moiety; Y=any substituent including fused rings; L=any ligating group, especially a pyridyl or pyridylamide; X=alkyl, aryl, substituted alkyl, H or hydride, halide, or other anionic moiety; y=an integer from 0 to the complete valence of M; R=alkyl, aryl, haloalkyl, haloaryl, hydrogen, etc; x=1-6, especially 2; Dashed line=optional bond, especially a weak bond; and X and (CR2)x may be tethered or part of a ring.Type: GrantFiled: December 7, 2006Date of Patent: January 29, 2013Assignee: Dow Global Technologies LLCInventors: Phillip D. Hustad, Roger L. Kuhlman, Robert D. J. Froese, Timothy T. Wenzel, Joseph N. Coalter, III
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Patent number: 8361922Abstract: The invention relates to ruthenium alkylidene complexes having an N-heterocyclic carbene ligand comprising a 5-membered heterocyclic ring having a carbenic carbon atom and at least one nitrogen atom contained within the 5-membered heterocyclic ring, wherein the nitrogen atom is directly attached to the carbenic carbon atom and is substituted by a phenyl ring, and wherein the phenyl ring has a hydrogen at either or both ortho positions and is substituted at at least one ortho or meta position. The invention also relates to an olefin metathesis reactions and particularly to the preparation of tetra-substituted cyclic olefins via a ring-closing metathesis.Type: GrantFiled: August 30, 2011Date of Patent: January 29, 2013Assignees: Materia, Inc., California Institute of TechnologyInventors: Jacob Berlin, Robert H. Grubbs, Yann Schrodi, Ian C. Stewart
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Patent number: 8362154Abstract: A novel process for the metathetic degradation of nitrile rubbers is provided which uses specific transition metal complex catalysts showing an increased activity.Type: GrantFiled: August 13, 2008Date of Patent: January 29, 2013Assignee: LANXESS Deutschland GmbHInventors: Christopher Ong, Werner Obrecht, Oskar Nuyken, Julia Maria Muller
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Patent number: 8362163Abstract: A supported metal complex comprising the reaction product of a transition metal complex of a polyvalent heteroaryl donor ligand containing at least one ortho-metallated aromatic ligand group and an ethylenically or poly(ethylenically) functionalized particulated organic or inorganic solid, a method for preparing the same and the use thereof as an addition polymerization catalyst.Type: GrantFiled: March 5, 2008Date of Patent: January 29, 2013Assignee: DOW Global Technologies, LLCInventor: Edmund M. Carnahan
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Patent number: 8354484Abstract: A catalyst composition comprising one or more metal complexes of a multifunctional Lewis base ligand comprising a bulky, planar, aromatic- or substituted aromatic-group and polymerization processes employing the same, especially continuous, solution polymerization of one or more ?-olefins at high catalyst efficiencies are disclosed.Type: GrantFiled: April 24, 2007Date of Patent: January 15, 2013Assignee: Dow Global Technologies, LLCInventors: Wayde V. Konze, Daniel D. VanderLende
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Patent number: 8338551Abstract: Method for the preparation of a blown film containing 300-600 gels/m2 of size in the range 100-2000 ?m as measured by an optical control system, in which the film is derived by extrusion from an ethylene-?-olefin copolymer. The method is carried out by preparing the copolymer in a particle forming polymerization process in the presence of a single site catalyst system containing a single site catalyst, a cocatalyst, and a support material.Type: GrantFiled: March 6, 2007Date of Patent: December 25, 2012Assignee: Ineos Europe LimitedInventors: Grant Berent Jacobsen, Claudine Viviane Lalanne-Magne, Sergio Mastroianni, Melanie Muron, Eric Nicolas Vincent Osmont
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Patent number: 8338557Abstract: Olefin polymer with narrow molecular weight distribution and specific molecular weight, olefin polymer having functional group introduced at terminal, tapered polymer containing segment wherein monomer composition continuously changes in the polymer chain, olefin polymer having different segments bonded to each other, and process for preparing these polymers. The olefin polymers are polymers of C2-20 carbon atom olefins and have a number-average molecular weight of ?500 and Mw/Mn of ?1.5. In syntheses, an olefin of 2-20 carbon atoms is polymerized in the presence of a catalyst comprising a transition metal compound represented by the formula LmMXn wherein M is a transition metal atom of Group 3-11, m is 1-5, n is a number satisfying a valence of M, L is a ligand—coordinated to the central metal M—which contains a heteroatom having no direct bond to the central metal, and X is e.g. halogen or a hydrocarbon.Type: GrantFiled: December 1, 2008Date of Patent: December 25, 2012Assignee: Mitsui Chemicals, Inc.Inventors: Makoto Mitani, Yasunori Yoshida, Junichi Mohri, Kazutaka Tsuru, Seiichi Ishii, Shinichi Kojoh, Tomoaki Matsugi, Junji Saito, Naoto Matsukawa, Shigekazu Matsui, Takashi Nakano, Hidetsugu Tanaka, Norio Kashiwa, Terunori Fujita
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Publication number: 20120322963Abstract: A novel nanosized or microsized material having electroconductivity that can be produced simply and in a large amount is provided. A method for producing a poly(N-alkylcarbazole) columnar structure having electroconductivity obtained by chemically polymerizing N-alkylcarbazole including alkyl having 1 to 4 carbons by adding an oxidizing agent to a solution obtained by dissolving the N-alkylcarbazole in a solvent is provided.Type: ApplicationFiled: June 14, 2012Publication date: December 20, 2012Applicants: JNC CORPORATION, NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITYInventors: KATSUYOSHI HOSHINO, TAKUYA TOKUDA, KATSUYUKI MURASHIRO, TOSHIKI KOMATSU
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Patent number: 8329840Abstract: The present invention relates to a photo-reactive norbornene-based copolymer which has superior miscibility to various organic solvents or additives while exhibiting superior liquid crystal alignment property and can be preferably used to an alignment layer of liquid crystal display device, a method of preparing the same, and an alignment layer including the same.Type: GrantFiled: July 6, 2011Date of Patent: December 11, 2012Assignee: LG Chem, Ltd.Inventors: Dong-Woo Yoo, Sung-Ho Chun, Young-Chul Won, Dai-Seung Choi
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Publication number: 20120309916Abstract: An ethylene oligomerization catalyst that oligmerizes ethylene to a series of ?-olefins and that has a Schulz-Flory constant of about 0.75 to 0.995 produces a stream of ?-olefins. This stream is then added to a vessel containing ethylene and a copolymerization catalyst that copolymerizes ethylene and ?-olefins. The resulting branched polyethylene often has good processing properties. The good processing is presumably due to the presence of “long chain branching”. Such polymers are useful for films and other packaging materials, and for molding resins for molding parts such as industrial, automotive or electrical parts.Type: ApplicationFiled: March 28, 2011Publication date: December 6, 2012Applicant: E I DU PONT DE NEMOURS AND COMPANYInventor: Joel David Citron
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Publication number: 20120309915Abstract: A polymerization to form a branched polyolefin, in which polymerization an ethylene copolymerization catalyst and an ethylene oligomerization catalyst form a series of ethylene oligomers that are ?-olefins are both present, gives an improved polyethylene if the oligomerization catalyst has a to relatively high Schulz-Flory constant.Type: ApplicationFiled: March 28, 2011Publication date: December 6, 2012Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Joel David Citron, Alex Sergey Ionkin
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Patent number: 8318874Abstract: The present invention generally relates to a process that selectively polymerizes ethylene in the presence of an alpha-olefin, and a precatalyst and catalyst useful in such processes.Type: GrantFiled: June 10, 2010Date of Patent: November 27, 2012Inventors: Jerzy Klosin, Dean M. Welsh
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Publication number: 20120289670Abstract: This invention relates to fluorinated alkoxy-imino metallic complexes and their use in catalyst systems for the polymerisation or oligomerisation of ethylene and alpha-olefins.Type: ApplicationFiled: July 30, 2012Publication date: November 15, 2012Applicant: TOTAL PETROCHEMICALS RESEARCH FELUYInventors: Jean-Francois Carpentier, Evgueni Kirillov, Christophe Thomas, Abbas Razavi, Nicolas Marquet
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Patent number: 8304504Abstract: The present invention relates to a catalyst precursor for the production of odd olefins having the formula: wherein X and Y are halogen and n is 2 or 3; and to a process for its preparation and a method for oligomerization of ethylene.Type: GrantFiled: April 4, 2006Date of Patent: November 6, 2012Assignee: Saudi Basic Industries CorporationInventors: Marcus Seitz, Helmut G. Alt, Syriac J. Palackal, Atieh Abu-Raqabah
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Publication number: 20120277388Abstract: The present invention relates to the field of ethylene polymerisation with a supported late transition metal catalyst system.Type: ApplicationFiled: October 28, 2010Publication date: November 1, 2012Applicant: TOTAL PETROCHEMICALS RESEARCH FELUYInventors: Sabine Sirol, Olivier Lhost
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Patent number: 8299189Abstract: A catalyst composition comprising a zirconium complex of a polyvalent aryloxyether and the use thereof in a continuous solution polymerization of ethylene, one or more C3-30 olefins, and a conjugated or nonconjugated diene to prepare interpolymers having improved processing properties are disclosed.Type: GrantFiled: April 24, 2007Date of Patent: October 30, 2012Assignee: Dow Global Technologies, LLCInventors: Harold W. Boone, Carl N. Iverson, Wayde V. Konze, Daniel D. VanderLende
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Publication number: 20120271014Abstract: 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: ApplicationFiled: August 17, 2010Publication date: October 25, 2012Applicant: E.I.DuPont De Nemours and CompanyInventor: Joel David Citron
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Patent number: 8293674Abstract: The present invention relates to a catalyst system for preparing a cyclic olefin addition polymer, a method for preparing the catalyst system and a cyclic olefin addition polymer prepared by the method, and more particularly to the method comprising the steps of contacting some content of norbornene-based monomer having a specific polar functional group with a catalyst system comprising a) a Group X transition metal compound; b) a compound comprising a neutral Group XV electron donor ligand having a cone angle of at least 160°; and c) a salt capable of offering an anion that can be weakly coordinated to the transition metal of the a) the Group X transition metal compound.Type: GrantFiled: June 16, 2011Date of Patent: October 23, 2012Assignee: LG Chem, Ltd.Inventors: Sung-Ho Chung, Won-Kook Kim, Sung-Cheol Yoon, Tae-Sun Lim, Heon Kim, Kyoung-Hoon Kim