Component B Metal Is Other Than Titanium Or Vanadium Patents (Class 502/117)
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Patent number: 6936563Abstract: The invention relates to coordination compounds of the general formulae (Ia) to (Ib), wherein M=Ti, Zr, Hf, V, Nb or Ta. The invention also relates to a method for producing the metal complexes and to the use of the complexes so obtained for the polymerization and copolymerization of olefins.Type: GrantFiled: February 7, 2002Date of Patent: August 30, 2005Assignee: BASF AktiengesellschaftInventors: Marc Oliver Kristen, Benno Bildstein, Alexander Krajete
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Patent number: 6933400Abstract: Complexes of the formulae I a to d, where M is an element of groups 6 to 10 of the Periodic Table of the Elements, preferably Ni, can be used for the polymerization and copolymerization of olefins, for example in suspension polymerization processes, gas-phase polymerization processes, bulk polymerization processes and emulsion polymerization processes.Type: GrantFiled: February 7, 2002Date of Patent: August 23, 2005Assignee: BASF AktiengesellschaftInventors: Marc Oliver Kristen, Benno Bildstein, Alexander Krajete
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Patent number: 6919291Abstract: Zwitterionic compositions of matter comprising cations [Ct]+ and anions connected together with substantially rigid fluorinated linking groups are described. These zwitterionic compositions serve as cocatalysts. They activate olefin polymerization catalysts, and can dissolve in aliphatic solvents. Synthesis and polymerization are illustrated.Type: GrantFiled: October 31, 2001Date of Patent: July 19, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventor: George Rodriguez
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Patent number: 6916760Abstract: A spray drying process for preparing a solid catalyst and composition for use therein comprising a catalyst compound, an activator for the catalyst compound, and at least one compound selected from among siloxanes, polyalkylene glycols, C1-4 alkyl or phenyl ether or diether derivatives of polyalkylene glycols, and crown ethers, and optionally a filler or support.Type: GrantFiled: September 10, 2001Date of Patent: July 12, 2005Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Jessica A. Cook
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Patent number: 6914027Abstract: The present invention relates to a catalyst composition and a method for making the catalyst composition of a polymerization catalyst and a static charge modifier. The invention is also directed to the use of the catalyst composition in the polymerization of olefin(s). In particular, the polymerization catalyst system is supported on a carrier. More particularly, the polymerization catalyst comprises a bulky ligand metallocene-type catalyst system.Type: GrantFiled: December 1, 2000Date of Patent: July 5, 2005Assignee: Univation Technologies, LLCInventors: Brant Patrick, Michael Elroy Muhle, Matt Kuchta
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Patent number: 6911410Abstract: A catalyst composition for use in dimerizing, co-dimerizing or oligomerizing olefins results from dissolving a nickel compound, optionally mixed or complexed with a ligand, in a medium resulting from mixing: at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide; at least one aluminum halide; and at least one aluminoxane.Type: GrantFiled: February 3, 2003Date of Patent: June 28, 2005Assignee: Institut Francais Du PetroleInventors: Vincent Lecocq, Hélène Olivier-Bourbigou
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Patent number: 6909008Abstract: An activator for olefin polymerization catalysts is disclosed. One aspect of the activator is that it comprises a group-13 central atom connected to at least one fluorinated aryl ring that is itself substituted with a silyl acetylenic group. Some embodiments employ a neutral activator and others employ the activator as an anion coupled with a ligand-abstracting cation. These activators are discrete molecules.Type: GrantFiled: October 29, 2002Date of Patent: June 21, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventor: George Rodriguez
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Patent number: 6906153Abstract: The invention provides a catalyst system (preferably a heterogeneous catalyst system) comprising: a transition metal bisphenolate catalyst (preferably a group 4 to 6 transition metal bisphenolate catalyst) and another olefin polymerization catalyst, and optionally a co-catalyst, e.g. an organoaluminium compound or a boron compound.Type: GrantFiled: January 31, 2002Date of Patent: June 14, 2005Assignee: Borealis Technology OyInventors: Richard Blom, Klaus J. Jens, Arlid Follestad, Olav B. Ryan
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Patent number: 6900152Abstract: A catalyst used for trimerization of ethylene into 1-hexene is descrobed, which comprises (i) a specific organometallic complex having a neutral multidentate ligand having a tripod structure, (ii) an alkylaluminoxane, and an optional ingredient selected from: (iii) a halogenated inorganic compound, (iv) a specific alkyl group-containing compound, (v) a combination of a halogenated inorganic compound with a specific alkyl group-containing compound, (vi) an amine compound and/or an amide compound, and (vii) a combination of an amine compound and/or an amide compound with a specific alkyl group-containing compound.Type: GrantFiled: September 28, 2001Date of Patent: May 31, 2005Assignee: Tosoh CorporationInventors: Toru Yoshida, Toshihide Yamamoto, Hisanori Okada, Hideyuki Murakita
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Patent number: 6900343Abstract: A process for purifying metallocenes in which a sparingly soluble metallocene halide is converted into a readily soluble and readily crystallizable metallocene by replacement of at least one halide ligand by an alternative negatively charged ligand and the metallocene obtained in this way is subsequently purified by crystallization.Type: GrantFiled: November 18, 1999Date of Patent: May 31, 2005Assignee: Basell Polyolefine GmbHInventors: Carsten Bingel, Patrik Müller, Hans-Herbert Brintzinger, Hans-Robert-Hellmuth Damrau
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Patent number: 6897273Abstract: This invention relates to a process to polymerize olefin(s) comprising combining a solution, slurry or solid comprising one or more bulky ligand metallocene catalyst compounds, an optional support, and or one or more activator(s) with a solution comprising one or more phenoxide catalyst compounds, and thereafter, introducing one or more olefin(s) and the combination into a polymerization reactor. This invention also relates to a polymer of ethylene wherein the polymer has a density of 0.910 to 0.930 g/cc, a melt index of 0.3 to 2.0 dg/min, and a 15 to 35 ?m thick film of the polymer has a 45° gloss of 60 or more, a haze of 7% or less, and a dart impact of 600 g or more.Type: GrantFiled: December 4, 2000Date of Patent: May 24, 2005Assignee: Univation Technologies, LLCInventors: John F. Szul, Tae Hoon Kwalk, David James Schreck, Simon Mawson, Matthew G. McKee, Kersten Anne Terry, Mark G. Goode, Gregory T. Whiteker, Eric A. Lucas
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Patent number: 6894129Abstract: The present invention relates to a catalyst for preparing vinyl aromatic polymer and styrene polymerization using the same, and particularly to a transition metal half metallocene catalyst with a novel structure for preparing syndiotactic styrene polymer having high activity, superior stereoregularity, high melting point and various molecular weight distributions and a process for preparing styrene polymer using the same. The present invention provides a multinuclear half metallocene compound in which two or more of transition metals of groups 3 to 10 on periodic table are connected through bridge ligand simultaneously containing ?-ligand cycloalkandienyl group and ?-ligand functional group and its preparation, and a process for preparing styrene polymer using the compound as a catalyst. Polymers with various molecular weight distributions as well as vinyl aromatic polymer having predominant syndiotactic structure can be prepared with high activity using the multinuclear half metallocene catalyst.Type: GrantFiled: July 11, 2002Date of Patent: May 17, 2005Assignee: LG Chem, Ltd.Inventors: Min-Hyung Lee, You-Mi Jeong, Jin-Young Ryu
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Patent number: 6894180Abstract: A catalyst system having the following formula is described herein. wherein M is a metal; each X is an atom or group banded to M and may be the same or different; R1 and R2 may be the same or each may be different and are substituted or unsubstituted cyclopentadienyl or aromatic groups; RB is a structural bridge between R1 and R2 imparting stereorigidity thereto and including at least one heteroatom bonded to M, with each of R1 and R2 bonded to the same or different heteroatom of RB which heteroatom is also bonded to M; Z is the coordination number of M and is greater than or equal to 4 and m is the number of bonds between M and heteroatoms of RB.Type: GrantFiled: October 23, 2003Date of Patent: May 17, 2005Assignee: Fina Technology, Inc.Inventors: Abbas Razavi, Margarito Lopez, Didier Baekelmans, Vladimir Marin
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Patent number: 6887956Abstract: A catalyst system suitable for use in the production of high cis polybutadiene is disclosed. The catalyst system includes a cobalt salt of the formulaCoAx?, where A is a monovalent or divalent anion and x is 1 or 2; an alkyl aluminum chloride compound of the structure R2AlCl, where R is an alkyl group containing 2-8 carbon atoms; a trialkyl aluminum compound of the formula R3Al, where R is an alkyl group containing 2-8 carbon atoms; and a catalytic amount of water.Type: GrantFiled: October 2, 2001Date of Patent: May 3, 2005Assignee: Dow Global Technologies Inc.Inventors: Adriaan A. van der Huizen, Jean-Marc Potlet, Alain Sabatier, Patrick Le Roy
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Patent number: 6884748Abstract: The present invention relates to a process of producing a fluorided catalyst compound, catalyst compositions, and polymerization methods including such. At least one specific embodiment of the invention includes contacting a chlorinated metallocene catalyst component with a fluorinated inorganic salt, for a time sufficient to form a fluorinated metallocene catalyst component such as described in the following example: wherein R are substituent groups selected from the group consisting of C1 to C10 alkyls in a particular embodiment, and p is 0 or an integer from 1 to 5. The fluorinated inorganic salt is characterized in a particular embodiment as a compound that provides at least one fluoride ion when contacted with a diluent comprising at least 50 wt % water.Type: GrantFiled: February 18, 2003Date of Patent: April 26, 2005Assignee: Univation Technologies, LLCInventor: Laughlin G. McCullough
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Patent number: 6884747Abstract: Linear low density polyethylenes (LLDPEs) that have relatively high melt index ratios (MIR) and relatively high melt strength (MS) are described. This combination of melt properties is achieved by a substantially non-blended LLDPE. Catalysts used to produce these polyethylenes are generally a blend of bridged bisindenyl zirconocene dichlorides, where one zirconocene contains saturated indenyls and the other unsaturated indenyls.Type: GrantFiled: September 27, 2001Date of Patent: April 26, 2005Assignee: Univation Technologies, LLCInventors: Armenag Hagop Dekmezian, Natalie Ann Merrill
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Patent number: 6881695Abstract: An olefin polymerization catalyst is provided which makes use of a modified methylaluminoxane and thus stably exhibits an activity equivalent to, or higher than, the activity achieved by polymethylaluminoxane. Specifically, the olefin polymerization catalyst is in the form of a modified methylaluminoxane preparation prepared from: an organoaluminum compound represented by the following general formula (I): R1mAlX3-m??(I) wherein R1 represents a straight-chained or branched hydrocarbon group selected from the group consisting of alkyl, alkenyl, and aryl groups having 2 to 20 carbon atoms; X represents a hydrogen atom, halogen atom, alkoxy group, or allyloxy group; and 0<m?3; and trimethyl aluminum, wherein the mole fraction of methyl group of the aluminoxane unit with respect to the total number of moles of the hydrocarbon group having 2 to 20 carbon atoms and methyl group present in the modified methylaluminoxane preparation is 65 mol % or greater.Type: GrantFiled: April 8, 2003Date of Patent: April 19, 2005Assignee: Tosoh Finechem CorporationInventors: Eiichi Kaji, Kouji Toyota, Toshihiro Takasugi, Hideki Kanazawa
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Patent number: 6878787Abstract: Supported stereospecific catalysts and processes for the stereotactic propagation of a polymer chain derived from ethylenically unsaturated monomers such as the polymerization of propylene to produce syndiotactic polypropylene or isotactic polypropylene. The supported catalyst comprises a stereospecific metallocene catalyst component and a co-catalyst component comprising an alkylalumoxane. Both the metallocene catalyst component and the co-catalyst component are supported on a particulate polyamide support comprising spheroidical particles of a polyamide having an average diameter with the range of 5-60 microns, and a porosity permitting distribution of a portion of the co-catalyst within the pore volume of the polyamide particles while retaining a substantial portion on the surface of the particles. The polyamide support is characterized by relatively low surface area, specifically a surface area less than 20 square meters per gram.Type: GrantFiled: August 26, 2003Date of Patent: April 12, 2005Assignee: Fina Technology, Inc.Inventors: David John Rauscher, William John Gauthier, Shady Nader Henry, Kai Hortmann
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Patent number: 6878786Abstract: Process for the polymerization of olefins comprising contacting olefins under polymerization conditions in the presence of a catalyst system comprising the product obtained by contacting: (A) at least one transition metal organometallic compound, pyrolidyl bis(?-cyclopentadienyl)methylzirconium being excluded, and (B) an organometallic compound obtained by contacting: (a) a Lewis base having formula (I): ?wherein Ra, Rb, Rc and Rd, equal to or different from each other, are selected from the group consisting of hydrogen, halogen, linear or branched, saturated or unsaturated, C1-C10 alkyl, C6-C20 aryl, C7-C20 arylalkyl and C7-C20 alkylaryl groups; with b) a Lewis acid of formula (II) MtR13??(II) ?wherein Mt is a metal belonging to Group 13 of the Periodic Table of the Elements; R1, equal to or different from each other, are selected from the group consisting of halogen, halogenated C6-C20 aryl and halogenated C7-C20 alkylaryl groups; and (C) optionally an alkylating agent.Type: GrantFiled: March 28, 2003Date of Patent: April 12, 2005Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Simona Guidotti
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Patent number: 6878658Abstract: The present invention provides a Ziegler-Natta catalyst useful in solution processes for the polymerization of olefins having a low amount of aluminum and magnesium. The catalysts of the present invention contain an alkyl silanol and have a molar ratio of Si:Ti from 0.25:1 to 4:1. The catalysts are effective for the solution polymerization of olefins at high temperatures.Type: GrantFiled: December 9, 2002Date of Patent: April 12, 2005Assignee: Nova Chemicals (International) S.A.Inventor: Isam Jaber
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Patent number: 6878662Abstract: The invention provides olefin(s) polymerization catalyst compositions that include at least one tridentate ligand coordinated to the transition metal by one datively bonded heteroatom and two anionically bonded heteroatoms.Type: GrantFiled: December 18, 2001Date of Patent: April 12, 2005Assignee: Univation Technologies, LLCInventor: Rex E. Murray
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Patent number: 6875719Abstract: A catalyst composition for preparing olefin polymers. The catalyst composition includes a metallocene compound and an activating cocatalyst. In the metallocene compound, two cyclopentadienyl groups are bridged by X (carbon) in a ring structure and the bridge X forms a three-, four-, or five-member ring structure. The bite angle ? formed by the two cyclopentadienyl rings and X is equal to or greater than 100 degrees. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions. The metallocene compound is represented by formula (I) below.Type: GrantFiled: September 17, 2002Date of Patent: April 5, 2005Assignee: Industrial Technology Research InstituteInventors: Jing-Cherng Tsai, Ming-Yuan Wu, Tung-Ying Hsieh, Yuh-Yuan Wei, Chao-Ying Yu
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Patent number: 6875718Abstract: The invention provides olefin polymerization catalysts exhibiting excellent polymerization activities, a process for olefin polymerization using the catalysts, a novel transition metal compound useful for the catalysts, and ?-olefin/conjugated diene copolymers having specific properties. The olefin polymerization catalysts of the invention contain (A) a transition metal compound of formula (I), and (B) an organometallic compound, an organoaluminum oxy-compound or an ionizing ionic compound. The novel transition metal compounds of the invention are compounds of formula (I) wherein M is a transition metal atom of Group 3 or 4 of the periodic table; R1 is a hydrocarbon group, etc.; R2 to R5 are each H, a halogen, a hydrocarbon group, etc.; R6 is a halogen, a hydrocarbon group, etc.Type: GrantFiled: August 31, 2001Date of Patent: April 5, 2005Assignee: Mitsui Chemicals, Inc.Inventors: Terunori Fujita, Yasushi Tohi, Makoto Mitani, Shigekazu Matsui, Junji Saito, Masatoshi Nitabaru, Kiyoaki Sugi, Haruyuki Makio, Toshiyuki Tsutsui
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Patent number: 6872843Abstract: The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to the use of the same for the polymerisation of olefins.Type: GrantFiled: October 17, 2001Date of Patent: March 29, 2005Assignee: Basell Polyolefine GmbHInventors: Jörg Schottek, Jörg Schulte
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Patent number: 6872844Abstract: A complex of a Group 3-10 metal, said complex comprising a cyclic group containing delocalized electrons, a bridging group connecting he metal with the cyclic group, and acetylene or a derivative thereof.Type: GrantFiled: February 8, 2002Date of Patent: March 29, 2005Assignee: The Dow Chemical CompanyInventor: Alexander Vogel
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Patent number: 6870015Abstract: There are provided: (I) a catalyst component for addition polymerization comprising: (i) a transition metal compound having (a) two cyclopentadiene type anion skeleton-carrying groups, which are linked with each other directly or through a bridging group, and (b) a hafnium atom as its central metal, and (ii) a transition metal compound having (a) two substituted cyclopentadiene type anion skeleton-carrying groups, which are not linked with each other, and (b) a zirconium atom or a titanium atom as its central atom; and (II) a process for producing a catalyst for addition polymerization, which comprises the step of contacting the above catalyst component with a co-catalyst component for activation.Type: GrantFiled: September 25, 2002Date of Patent: March 22, 2005Assignee: Sumitomo Chemical Company, LimitedInventors: Hideki Oshima, Kazuo Takaoki
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Patent number: 6864209Abstract: A catalytic composition for oligomerizing olefins, in particular ethylene, comprises mixing at least one nickel complex, prepared by reacting a nickel salt with a phosphonite ligapd, with at least one hydrocarbylaluminum compound in a molar proportion with respect to the nickel of not more than 8? and selected from the group formed by tris(hydrocarbyl)aluminum compounds, chlorinated or brominated hydrocarbylaluminum compounds and aluminoxanes.Type: GrantFiled: March 31, 2003Date of Patent: March 8, 2005Assignee: Institut Francais du PetroleInventors: Fredy Speiser, Pierre Braunstein, Lucien Saussine
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Patent number: 6864205Abstract: A family of novel hetrocyclic-amide type catalyst precursors useful for the polymerization of olefins, such as ethylene, higher alpha-olefins, dienes, and mixtures thereof.Type: GrantFiled: December 18, 2001Date of Patent: March 8, 2005Assignee: Univation Technologies, LLCInventor: Rex Eugene Murray
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Patent number: 6864206Abstract: This invention relates to a method to support one or more catalyst compounds comprising contacting the catalyst compounds with a pretreatment agent comprising an aluminum alkyl and or an alumoxane in solution and thereafter contacting the combination with a supported activator.Type: GrantFiled: February 5, 2003Date of Patent: March 8, 2005Assignee: Univation Technologies, LLCInventors: Thomas Henry Peterson, Eric Lucas
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Patent number: 6861485Abstract: A multi-catalyst system is disclosed. The catalyst system comprises catalyst A and catalyst B. Catalyst A comprises a supported bridged indenoindolyl transition metal complex. Catalyst B comprises a supported non-bridged indenoindolyl transition metal complex. The catalyst system of the invention produces polyolefins which have bi- or multi-modal molecular weight distribution.Type: GrantFiled: June 20, 2003Date of Patent: March 1, 2005Assignee: Equistar Chemicals, LPInventor: Shaotian Wang
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Patent number: 6861543Abstract: A process is described for the preparation of elastomeric EP(D)M copolymers and terpolymers, characterized in that it is carried out in the presence of metallocene compounds of general formula (I) having a racemic stereoisomerismType: GrantFiled: April 23, 2002Date of Patent: March 1, 2005Assignee: Polimeri Europa S.p.A.Inventors: Paolo Biagini, Stefano Ramello, Roberto Provera, Roberto Santi
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Patent number: 6861487Abstract: The present invention relates to a catalyst precursor for homo- or copolymerization of olefins comprising a metallocene compound, a magnesium containing compound and a thermoplastic polymer support, and optionally further comprising a metal alkoxy compound, an aluminum containing compound, a silicon containing compound and/or an alcohol. The invention further relates to the process of polymerizing olefins using the inventive catalyst precursor.Type: GrantFiled: April 15, 2003Date of Patent: March 1, 2005Assignee: Saudi Basic Industries CorporationInventors: Orass Hamed, Akhlaq A. Moman, Atieh Abu-Raqabah, Abdulaziz Al-Nezari
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Patent number: 6858557Abstract: Metal complexes having constrained geometry and a process for preparation thereof, addition polymerization catalysts formed therefrom, processes for preparation of such addition polymerization catalysts, methods of use, and novel polymers formed thereby, including ElPE resins and pseudo-random copolymers, are disclosed and claimed.Type: GrantFiled: April 13, 1998Date of Patent: February 22, 2005Assignee: The Dow Chemical CompanyInventor: James C. Stevens
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Patent number: 6855654Abstract: The invention relates to a process for uniformly dispersing a transition metal metallocene complex on a carrier comprising (1) providing silica which is porous and has a particle size of 1 to 250 microns, having pores which have an average diameter of 50 to 500 Angstroms and having a pore volume of 0.5 to 5.0 cc/g; (2) slurrying the silica in an aliphatic solvent having a boiling point less than 110° C.Type: GrantFiled: September 16, 2002Date of Patent: February 15, 2005Assignee: ExxonMobil Oil CorporationInventors: Yury V. Kissin, Robert I. Mink, Thomas E. Nowlin, Pradeep P. Shirodkar, Sandra D. Schregenberger, Grace O. Tsien
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Patent number: 6849753Abstract: A process for preparing a half-vanadocene compound, the process comprising reacting chlorine gas with a vanadocene compound represented by the formula (1) Cp2VX2??(1) wherein Cp represents cyclopentadienyl, substituted cyclopentadienyl, indenyl, substituted indenyl, fluorenyl, substituted fluorenyl, benzoindenyl, substituted benzoindenyl, azulenyl or substituted azulenyl, and the two Cp groups may be the same or different, X represents fluorine, chlorine, bromine or iodine and the two X atoms may be the same or different.Type: GrantFiled: November 15, 2002Date of Patent: February 1, 2005Assignee: Nichia CorporationInventors: Tadanao Kohara, Tomoya Kubo
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Patent number: 6846770Abstract: This invention relates to metallocene catalyst compositions which are highly active for the polymerization of olefins, particularly prochiral ?-olefins. The catalyst compositions contain at least one metallocene, and least one activator and a support that has been fluorided using a fluoride containing compound.Type: GrantFiled: February 11, 2002Date of Patent: January 25, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventor: Anthony N. Speca
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Patent number: 6841498Abstract: Disclosed is a new titanium based catalyst system for (co)-polymerizing ethylene or ethylene with alpha-olefin having 3 to 10 carbons. The catalyst is obtained by contacting a magnesium halide support with an aluminum compound and with a titanium halide compound and then treating the resulting solid with a magnesium-amide complex. The catalyst system is suitable for producing ethylene polymer and co-polymer with narrow molecular weight distribution as well as improved branching compositional distribution.Type: GrantFiled: February 12, 2003Date of Patent: January 11, 2005Assignee: Formosa Plastic Corporation, U.S.A.Inventors: Gapgoung Kong, Zhongyang Liu, Honglan Lu
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Patent number: 6841500Abstract: Catalyst systems useful for olefin polymerization are disclosed. The catalysts include a bimetallic complex that incorporates two linked indenoindolyl groups, each of which is pi-bonded through its cyclopentadienyl ring to one of the metals. Compared with conventional indenoindolyl complexes, the bimetallic complexes of the invention have enhanced ability to give polyolefins with desirably low melt indices. Certain bimetallic indenoindolyl complexes also provide a way to broaden polymer molecular weight distribution and thereby improve processability simply by regulating the amounts of comonomer and activator used in the polymerization.Type: GrantFiled: December 3, 2002Date of Patent: January 11, 2005Assignee: Equistar Chemicals, LPInventors: Sandor Nagy, Barbara M. Tsuie, William J. Sartain
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Patent number: 6841501Abstract: A catalyst system for the polymerization of olefins comprising the product obtained by contacting: (A) at least one transition metal organometallic compound, pyrrolidyl bis(?-cyclopentadienyl)methylzirconium being excluded, and (B) an organometallic compound obtained by contacting: a) a Lewis base having formula (I): ?wherein Ra, Rb, Rc and Rd, equal to or different from each other, are selected from the group consisting of hydrogen, halogen, linear or branched, saturated or unsaturated, C1-C10 alkyl, C6-C20 aryl, C7-C20 arylalkyl and C7-C20 alkylaryl groups; with b) a Lewis acid of formula (II) MtR13??(II) ?wherein Mt is a metal belonging to Group 13 of the Periodic Table of th Elements; R1, equal to or different from each other, are selected from the group consisting of halogen, halogenated C6-C20 aryl and halogenated C7-C20 alkylaryl groups; and (C) optionally an alkylating agent.Type: GrantFiled: March 28, 2003Date of Patent: January 11, 2005Assignee: Basell Poliolefine Italia S.p.A.Inventors: Luigi Resconi, Simona Guidotti
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Patent number: 6841499Abstract: A supported catalyst comprises a cationic rhodium(I) complex of the formula wherein R1 and R2 are the same or different hydrocarbon groups of up to 30 C atoms, or R1 and R2 are linked to form a ring, and a heterogeneous support medium that provides anionic binding sites. Such a complex is particularly useful as a catalyst in a process of hydrogenating an aldehyde to produce the corresponding primary alcohol.Type: GrantFiled: October 6, 2000Date of Patent: January 11, 2005Assignee: Chirotech Technology LimitedInventors: Mark Joseph Burk, Arne Gerlach
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Patent number: 6841693Abstract: A transition metal compound of Groups to 10 of the Periodic Table, represented by the following formula (1): wherein M represents a transition metal of Groups 8 to 10 of the Periodic Table; L, electrically neutral, represents a hetero atom-containing hydrocarbon group represented by the following formula (2) wherein R1 to R5 each independently represent a hydrogen atom, a halogen atom, a hydrocarbon group having form 1 to 20 carbon atoms, a halogenohydrocarbon group having from 1 to 20 carbon atoms, or a hetero atom-containing group, and optionally these groups are bonded to each other to form a ring; R6 represents a hydrogen atom, a hydrocarbon group having form 1 to 40 carbon atoms, a halogenohydrocarbon group having from 1 to 40 carton atoms, or a hetero atom-containing group; L? electrically neutral, represents a hetero atom-containing hydrocarbon group represented by the following formula (3) wherein R7 to R11 each independently represent a hydrogen atom, a halogen atom, a hydrocarbon groupType: GrantFiled: November 10, 2000Date of Patent: January 11, 2005Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Masami Watanabe, Haruhito Sato, Masahiko Kuramoto, Shinji Tanaka, Takao Tamura
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Patent number: 6838563Abstract: Substituted monocyclopentadienyl, monoindenyl, monofluorenyl and heterocyclopentadienyl complexes of chromium, molybdenum or tungsten in which at least one of the substituents on the cyclopentadienyl ring carries a donor function which is bonded rigidly, not exclusively via sp3-hybridized carbon or silicon atoms, and a process for the polymerization of olefins.Type: GrantFiled: June 11, 2002Date of Patent: January 4, 2005Assignee: Basell PolyolefinsInventors: Shahram Mihan, Dieter Lilge, Paulus de Lange, Günther Schweier, Martin Schneider, Ursula Rief, Udo Handrich, Johannes Hack, Markus Enders, Gunter Ludwig, Ralph Rudolph
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Patent number: 6838411Abstract: This description addresses a process for the preparation of polyolefins from one or more olefinic monomers comprising combining under polymerization conditions said olefins with the product of combining i) an organometallic catalyst compound and ii) a cocatalyst complex comprising a trialkylsilyl-substituted carbenium cation and a suitable noncoordinating or weakly coordinating anion. These complexes exhibit good solubility in aliphatic solvents such that use in aliphatic solution based polymerization reaction processes can be conducted without the use of aromatic solvents or co-solvents and without the need for slurry means of introduction into chemical reaction environments. High number-average molecular weight polymers and copolymers at high rates of productivity were observed from the use of metallocene catalysts complexes when activated with [(3, 5-(Et3Si)2Ph)3C]+ [(C6F5) B]? and used in a hexane-based solution polymerization.Type: GrantFiled: March 18, 2002Date of Patent: January 4, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventor: Francis C. Rix
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Publication number: 20040259722Abstract: A multi-catalyst system is disclosed. The catalyst system comprises catalyst A and catalyst B. Catalyst A comprises a supported bridged indenoindolyl transition metal complex. Catalyst B comprises a supported non-bridged indenoindolyl transition metal complex. The catalyst system of the invention produces polyolefins which have bi- or multi-modal molecular weight distribution.Type: ApplicationFiled: June 20, 2003Publication date: December 23, 2004Inventor: Shaotian Wang
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Publication number: 20040260041Abstract: The invention relates to novel bridged biphosphole ligands according to the general formula: 1Type: ApplicationFiled: April 8, 2004Publication date: December 23, 2004Inventors: Francois-Javier Buzin, Francois Nief, Francois Mathey, Jean Malinge, Eliane Deschamps, Bernard Deschamps
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Patent number: 6833464Abstract: A composition of matter comprising a compound having the general formula: [CpM(ArF)Y]p wherein Cp is a substituted or unsubstituted cyclopentadienyl ligand or cyclopentadienyl-type bulky ligand characterized by one or more open, acylic or fused ring systems comprised of atoms selected from Groups 13-16 of the Periodic Table of Elements and wherein the ligands can include a heteroatom; M is a metal selected from Groups 3-9 of the Periodic Table of Elements; ArF is a fluorinated aryl group; Y is a hydrocarbyl group that can contain a heteroatom; and p is 1 or 2. The invention also contemplates a method of producing the compound and its use in the oligomerization and polymerization of alpha olefins.Type: GrantFiled: May 14, 2003Date of Patent: December 21, 2004Assignee: The Texas A&M University SystemInventors: Francois Gabbai, Mani Ganesan, Dave S. Pope, Jimmy D. Brown, Donald L. Wharry, Paul K. Hurlburt
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Patent number: 6833338Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises contacting an organometal compound, an organoaluminum compound, and a treated solid oxide compound.Type: GrantFiled: May 7, 2003Date of Patent: December 21, 2004Assignee: Phillips Petroleum CompanyInventors: Max P. McDaniel, Kathy S. Collins, Gil R. Hawley, Michael D. Jensen, Christopher E. Wittner, Elizabeth A. Benham, Anthony P. Eaton, Joel L. Martin, David C. Rohlfing, Youlu Yu
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Publication number: 20040254063Abstract: The present invention relates to an adduct comprising MgCl2, an alcohol (ROH) in which R is a C1-C10 hydrocarbon group, and a compound containing a transition metal M selected from the Groups 3 to 11 or the lanthanide or actinide groups of the Periodic Table of the Elements (new IUPAC version) in an amount such as to give a weight of M atoms lower than 10% based on the total weight of the adduct. The catalyst components that are obtained by reacting the adducts with halogenating agents show very high specific activity.Type: ApplicationFiled: April 22, 2004Publication date: December 16, 2004Inventors: Mario Sacchetti, Daniele Evangelisti, Diego Brita, Gianni Collina
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Patent number: 6828270Abstract: The supported catalyst according to the present invention comprises a support of organic or inorganic powder with a high-surface area, a polymer coated onto the support and a metallocene catalyst. The polymer (1) contains polar groups; (2) interacts with the surface of the support; and (3) is insoluble in the styrenic monomer or polymerization solvent during polymerization after the catalyst is loaded. The polymer is located between the support and the metallocene catalyst such that the polymer insulates the metallocene layer from the support layer to prevent poisoning of the metallocene catalyst layer by the support layer. The styrenic polymer powder such produced by the present invention has good flow-ability and good morphology demonstrating a great deal of industrial applicability.Type: GrantFiled: October 2, 2000Date of Patent: December 7, 2004Assignee: Samsung Atofina Co. Ltd.Inventors: Xuequan Zhang, Sung-Cheol Yoon, Jae-Gon Lim, Young-Sub Lee
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Patent number: RE38683Abstract: A method for producing dialkylsilylbis(2-alkyl-4-aryl indenyl) titanocenes including rac-Me2Sibis(2-methyl-4-phenylindenyl)-titanium dichloride is described.Type: GrantFiled: January 19, 2002Date of Patent: January 4, 2005Assignee: Boulder Scientific CompanyInventor: Jeffrey M. Sullivan