Polymerization With Metallocene Catalysts Patents (Class 526/943)
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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: 6846886Abstract: The invention provides for polymerization catalyst compositions, and for methods for introducing the catalyst compositions into a polymerization reactor. More particularly, the method combines a catalyst component containing slurry and a catalyst component containing solution to form the completed catalyst composition for introduction into the polymerization reactor. The invention is also directed to methods of preparing the catalyst component slurry, the catalyst component solution and the catalyst compositions, to methods of controlling the properties of polymer products utilizing the catalyst compositions, and to polymers produced therefrom.Type: GrantFiled: February 24, 2003Date of Patent: January 25, 2005Assignee: Univation Technologies, LLCInventors: Simon Mawson, Sun-Chueh Kao, Tae Hoon Kwalk, Timothy Roger Lynn, David H. McConville, Matthew Gary McKee, John Francis Szul, Kersten Anne Terry, Timothy T. Wenzel, Mark Gregory Goode, John Henry Oskam, Robert J. Jorgensen, Robert Harold Vogel
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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: 6844288Abstract: A process for the preparation of ligands for metallocene catalysts used in the production of amorphous polymers of alpha-olefins having high molecular weight and narrow molecular weight distributions, in which the isotactic sequences are more abundant than the syndiotactic ones.Type: GrantFiled: December 4, 2002Date of Patent: January 18, 2005Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Davide Balboni
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Patent number: 6841506Abstract: A modified aluminoxane is disclosed. Aluminoxane compounds are modified with glycol ethers or polyethers. The modified aluminoxanes are effective activators for single-site catalysts. Catalyst activated with the modified aluminoxane produces polyolefin with increased melt flow index, broadened molecular weight distribution, and improved thermal processability.Type: GrantFiled: March 5, 2004Date of Patent: January 11, 2005Assignee: Equistar Chemicals, LPInventors: Shao-Hua Guo, Shaotian Wang
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Patent number: 6841634Abstract: A modified supported olefin polymerization catalyst modified by prepolymerization with an olefin or an olefin mixture different from the olefin or olefin mixture of the subsequent olefin polymerization. The polymerization catalyst is a metallocene, and the melting or softening point of the polyolefin made using the catalyst is at least 20° C. lower than that of the prepolymerized polyolefin.Type: GrantFiled: October 2, 2000Date of Patent: January 11, 2005Assignee: Borealis Technology OyInventors: Eberhard Ernst, Jens Reussner, Per Roterud, Kjell-Arne Solli
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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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Publication number: 20040266963Abstract: A process for the polymerisation of olefins is described involving the use, of a catalyst system comprising a supported transition metal compound and an activator based on an organoborane and an aluminoxane. Preferably the transition metal compound is a metallocene complex. The support is pretreated with an organoaluminium compound and the process is particularly suitable for the gas phase preparation of copolymers of ethylene and alpha-olefins having a molecular weight distribution in the range 2.5-7.0 and a melt strength in the range 3-12 cN.Type: ApplicationFiled: May 18, 2004Publication date: December 30, 2004Inventors: Choon Kooi Chai, Brian Stephen Kimberley, Sergio Mastroianni
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Patent number: 6835788Abstract: The catalyst for polymerizing vinyl compounds according to the present invention comprises (A) a complex of Group 4 to 10 transition metal of the Periodic Table, (B) a clay, clay mineral or ion-exchangeable layered compound, and (C) at least one aluminoxy compound represented by Formula (1): wherein a plurality of R groups are each independently C1-10 hydrocarbon group and at least one of the R groups is a hydrocarbon group having 2 or more carbon atoms; and x is an integer of 2 or more. By using the Group 4 to 10 transition metal complex and the clay, clay mineral or ion-exchangeable layered compound in combination with the specific aluminoxy compound, vinyl polymers are produced at a high efficiency.Type: GrantFiled: August 20, 2002Date of Patent: December 28, 2004Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Haruhito Sato, Masami Watanabe, Masahiko Kuramoto
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Publication number: 20040260043Abstract: This invention relates to a polymerization method comprising contacting at least one olefin monomer, at least one polar monomer, an optional activator, and a catalyst compound represented by the formula: 1Type: ApplicationFiled: May 13, 2004Publication date: December 23, 2004Inventors: Lisa Saunders Baugh, Enock Berluche, Paul Veinbergs Hinkle, Francis Charles Rix, Donald Norman Schulz
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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: 20040260040Abstract: A process for polymerizing 1-butene, optionally with up to 30% by mol of ethylene, propylene or an alpha olefin of formula CH2═CHT wherein T is a C3-C10 alkyl group, in the presence of a catalyst system obtainable by contacting a metallocene compound having C1 symmetry with an alumoxane and/or a compound capable of forming an alkyl metallocene cation.Type: ApplicationFiled: May 11, 2004Publication date: December 23, 2004Inventor: Luigi Resconi
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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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Patent number: 6833465Abstract: A metallocene compound of a metal M of group 4 in the table of elements, comprising a cyclopentadienyl group and at least one oligomeric group R′ bonded to M, having the following formula (II): -(AxDyUz)RI (II) wherein: A represents any monomeric unit deriving from a vinylaromatic group polymerizable by means of anionic polymerization, having from 6 to 20 carbon atoms; D represents any monomeric unit deriving from a conjugated diolefin polymerizable by means of anionic polymerization, having from 4 to 20 carbon atoms; U represents any generic optional monomeric unit deriving from an unsaturated compound copolymerizable with any of the above conjugated diolefins D or vinylaromatic compounds A; RI represents hydrogen or a hydrocarbyl group having from 1 to 20 carbon atoms, each index “x” and “y” can be independently zero or an integer, provided the sum (x+y) is equal to or higher than 2, preferably between 2 and 50, more preferably between 2 and 25; “zType: GrantFiled: September 26, 2003Date of Patent: December 21, 2004Assignee: Polimeri Europa S.p.A.Inventors: Francesco Masi, Anna Sommazzi, Giampietro Borsotti, Evelina Ballato, Roberto Santi
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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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Publication number: 20040254314Abstract: A catalyst for olefin polymerization, comprising:Type: ApplicationFiled: April 16, 2004Publication date: December 16, 2004Inventors: Takashi Nozaki, Akio Fujiwara
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Publication number: 20040254316Abstract: The invention relates to a process for the polymerization of olefins using an antistatic agent. In particular, the invention relates to a polymerization process to produce propylene polymers using a supported metallocene catalyst system and an antistatic agent. The antistatic agent may also be contacted with a scavenger prior to polymerization.Type: ApplicationFiled: April 20, 2004Publication date: December 16, 2004Inventors: Randell Wayne Dickey, Jennifer Harting Ward, Thomas Craig Wilson
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Publication number: 20040254310Abstract: A dual olefin polymerization process is disclosed. The process uses a bridged indenoindolyl ligand-containing Group 4 transition metal complex and an activator. It is carried out in multiple stages or in multiple reactors. The same complex and the same activator are used in all stages or reactors. Different polyolefins are made in different stages or reactors by varying the monomer compositions, hydrogen concentrations, or both. The process of the invention produces polyolefins which have broad molecular weight distributions, composition distributions, or both.Type: ApplicationFiled: June 16, 2003Publication date: December 16, 2004Inventors: Linda N. Winslow, Sandor Nagy
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Publication number: 20040254315Abstract: A process for polymerizing 1-butene comprising the step of contacting under polymerization conditions 1-butene and optionally from 0 to 20% by mol of an alpha olefin with a catalyst system obtainable by contacting a bridget metallocene compound of formula (I) wherein R1 and R2 are an hydrocarbon radical A is a carbon atom, a germanium atom or a silicon atom; m is 1, 2; M is a metal of group 4 of the Periodic Table of the Elements; X, is hydrogen, a halogen atom, or a group R, OR, OSO2CF3, OCOR, SR, NR2 or PR2, wherein the substituents R are hydrocarbon radical; L is a moiety of formula (IIa) or (IIb) wherein T is an oxigen (O) or sulphur (S) atom or a CH2 group; and R3 and R4 are hydrogen atoms or hydrocarbon radicals; one or more alumoxanes or compounds able to form an alkylmetallocene cation; and optionally an organo aluminium compound.Type: ApplicationFiled: December 12, 2003Publication date: December 16, 2004Inventor: Luigi Resconi
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Patent number: 6831034Abstract: Catalytic composition for the (co)polymerization of ethylene and other &agr;-olefins, including a metallocene complex of a metal M of group 4 of the periodic table or the product obtainable from the same combined with a suitable activator, wherein said metallocene complex includes at least one cyclopentadienyl group and at least one unsaturated hydrocarbyl organic group bonded to the metal M, having the following formula (I): -(AxDyUz)RI (I) wherein: A represents any monomeric unit deriving from a vinylaromatic group polymerizable by means of anionic polymerization, having from 6 to 20 carbon atoms; D represents any monomeric unit deriving from a conjugated diolefin polymerizable by means of anionic polymerization, having from 4 to 20 carbon atoms; U represents any generic optional monomeric unit deriving from an unsaturated compound co-polymerizable with any of the above conjugated diolefins D or vinylaromatic compounds A; RI represents hydrogen or a hydrocarbyl group having from 1 to 20 carType: GrantFiled: September 26, 2003Date of Patent: December 14, 2004Assignee: Polimeri Europa S.p.A.Inventors: Francesco Masi, Anna Sommazzi, Roberto Santi
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Publication number: 20040249094Abstract: Use of isotactic polypropylene homopolymers or copolymers in processes in which the polypropylene solidifies from a melt, wherein for enhanced speed of solidification of the polypropylene the polypropylene has a melt temperature and a crystallisation temperature not more than 50° less than the melt temperature resulting from the polypropylene having been produced using a metallocene catalyst component having the general formula as described herein:Type: ApplicationFiled: March 3, 2004Publication date: December 9, 2004Applicant: ATOFINA Research, S.A.Inventor: Axel Demain
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Publication number: 20040249095Abstract: A process for the polymerization of olefins using a metal complex of group 3, 4, 5, 6, 7, 8, 9 or 10 of the Periodic Table comprising at least one group C═NR1, C═PR1, C═O, C═S or a heteroaromatic ring system containing at least one atom from the group consisting of N, P, O and S, can be used for controlling the width of the molar mass distribution of the resulting polymers.Type: ApplicationFiled: March 11, 2004Publication date: December 9, 2004Inventor: Shahram Mihan
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Publication number: 20040249096Abstract: The invention provides a catalyst system and a method of making polyethylene using the catalyst system, the method comprising combining ethylene; an activator; and a metallocene catalyst compound; wherein in one embodiment the metallocene catalyst compound is selected from: 1Type: ApplicationFiled: April 21, 2004Publication date: December 9, 2004Inventor: Laughlin Gerard McCullough
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Publication number: 20040249092Abstract: A metal complex useful as a component of a catalyst composition for addition polymerizations comprising an anionic, polycyclic, fused ring ligand system containing at least 4 fused rings, at least one such ring comprising at least one heteroatom, said ligand being bonded to M by means of delocalized &pgr;-electrons and an addition polymerization process using the same.Type: ApplicationFiled: May 27, 2004Publication date: December 9, 2004Inventors: Shaoguang Feng, Ravi B. Shankar, Francis J. Timmers
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Patent number: 6824878Abstract: A thermoplastic film comprising a core layer comprising a polyolefin wherein the core layer comprises the interior of the film; a first transition layer comprising a polyolefin and a silicone additive, wherein the first transition layer is exterior to the core layer; and a first skin layer comprising a polyolefin wherein the first skin layer is exterior to the first transition layer and the core layer.Type: GrantFiled: June 12, 2001Date of Patent: November 30, 2004Assignee: ExxonMobil Oil CorporationInventors: Robert A. Migliorini, Karen A. Sheppard
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Patent number: 6825147Abstract: Titanium complexes comprising a 3-aryl-substituted cyclopentadienyl ring or substituted derivative thereof and at least one additional aryl substituent on the cyclopentadienyl ring, polymerization catalysts, and olefin polymerization processes using the same are disclosed.Type: GrantFiled: April 15, 2002Date of Patent: November 30, 2004Assignee: Dow Global Technologies Inc.Inventors: Jerzy Klosin, Ravi B. Shankar, Shaoguang S. Feng, Francis J. Timmers
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Patent number: 6825287Abstract: The invention provides for polymerization catalyst compositions, and for methods for introducing the catalyst compositions into a polymerization reactor. More particularly, the method combines a catalyst component containing slurry and a catalyst component containing solution to form the completed catalyst composition for introduction into the polymerization reactor. The invention is also directed to methods of preparing the catalyst component slurry, the catalyst component solution and the catalyst compositions, to methods of controlling the properties of polymer products utilizing the catalyst compositions, and to polymers produced therefrom.Type: GrantFiled: February 5, 2004Date of Patent: November 30, 2004Assignee: Univation Technologies, LLCInventors: Simon Mawson, Sun-Chueh Kao, Tae Hoon Kwalk, Timothy Roger Lynn, David H. McConville, Matthew Gary McKee, John Francis Szul, Kersten Anne Terry, Timothy T. Wenzel, Mark Gregory Goode, John Henry Oskam, Robert J. Jorgensen, Robert Harold Vogel
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Patent number: 6825371Abstract: The present invention relates to a catalyst for polymerization of &agr;-olefin, which comprises: an essential component (A) of a transition metal compound, an essential component (B) of an ion exchangeable layer compound except for silicate, or an inorganic silicate, and an optional component (C) of an organoaluminum compound, said component (A) being represented by the general formula (I):Type: GrantFiled: December 3, 2002Date of Patent: November 30, 2004Assignee: Mitsubishi Chemical CorporationInventors: Toshihiko Sugano, Masami Kashimoto, Taku Kato
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Publication number: 20040236043Abstract: The invention relates to a process for the preparation of a multimodal A-olefin polymer comprising polymerising in a polymerisation stage at least one A-olefin in the presence of a multisite catalyst and an adjuvant so as to produce a polymer having a relatively lower molecular weight component and a relatively higher molecular weight component, said adjuvant being selected from the group consisting of phosphines, phosphites, acetylenes, dienes, thiophenes and aluminium alkyls and said adjuvant being capable of altering the ratio of the fraction of higher molecular weight component to the fraction of the lower molecular weight component by at least 10%.Type: ApplicationFiled: May 13, 2004Publication date: November 25, 2004Inventors: Arild Follestad, Richard Blom, Ivar Martin Dahl, Erling Rytter
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Publication number: 20040236045Abstract: The present invention provides a method of synthesizing fluorided metallocene catalyst components comprising contacting at least one fluoriding agent comprising fluorine with one or more alkylated metallocene catalyst components comprising one or more non-halogen leaving groups to produce a fluorided catalyst component; wherein from less than 3 equivalents of fluorine are contacted for every equivalent of leaving group.Type: ApplicationFiled: June 23, 2004Publication date: November 25, 2004Inventor: Phillip T. Matsunaga
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Publication number: 20040236042Abstract: Ethylene propylene copolymers, substantially free of diene, are described. The copolymers will have a uniform distribution of both tacticity and comonomer between copolymer chains. Further, the copolymers will exhibit a statistically insignificant intramolecular difference of tacticity. The copolymers are made in the presence of a metallocene catalyst.Type: ApplicationFiled: May 27, 2004Publication date: November 25, 2004Inventors: Sudhin Datta, Bruce A. Harrington, Weiguo Hu, Periagaram S. Ravishankar, George Rodriguez
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Patent number: 6822106Abstract: Ethylene based polymers having high molecular weights can be obtained in high yields at temperatures of industrial interest, by carrying out the polymerization reaction in the presence of catalysts comprising silicon bridged metallocenes having a particular ligand system containing a heteroatom.Type: GrantFiled: November 3, 2003Date of Patent: November 23, 2004Assignee: Basell Poliolefine Italia S.p.A.Inventors: Tiziano Dall'Occo, Ofelia Fusco, Maurizio Galimberti, Ilya Nifant'ev, Ilya Laishevtsev
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Patent number: 6822057Abstract: Fluorinated amine compounds, R′iArF—ER2, where ArF is a fluoroaryl substituent, E is nitrogen or phosphorous, each R is independently a C1-C20 hydrocarbyl substituent, or the two R's may be connected to form an unsubstituted or substituted C2-C20 cycloaliphatic substituent, R′ is a C1-C20 hydrocarbyl or halogenated hydrocarbyl, and i is 0, 1 or 2 are disclosed. These compounds may be protonated and complexed with suitable substantially noncoordinating anions to prepare polymerization catalyst components. When these catalyst components are combined with organometallic catalyst precursors, the catalyst precursor is activated to a catalyst. This catalyst is combined with monomer under olefin polymerization conditions to prepare polymer. High number-average molecular weight polymers at high productivity rates were observed from using metallocene catalysts activated with [N-pentafluorophenyl pyrrolidinium][tetrakis(pentafluorophenyl)borate].Type: GrantFiled: December 11, 2000Date of Patent: November 23, 2004Assignee: Exxon Mobil Chemical Patents Inc.Inventor: George Rodriguez
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Patent number: 6818585Abstract: The present invention relates to a cyclic germanium bridged bulky ligand metallocene-type catalyst compound, a catalyst system thereof, and to its use in a process for polymerizing olefin(s) to produce enhanced processability polymers.Type: GrantFiled: September 18, 2001Date of Patent: November 16, 2004Assignee: Univation Technologies, LLCInventors: Donna J. Crowther, Phillip T. Matsunaga, Ching-Tai Lue
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Patent number: 6818713Abstract: A process for polymerizing ethylene is disclosed. The process uses a catalyst system which has a supported open architecture indenoindolyl complex. We surprisingly found that modifying the open architecture complex to incorporate a C6-C20 hydrocarbyl amido group enables the production of polyethylene having good flow while maintaining high catalyst activity.Type: GrantFiled: August 11, 2003Date of Patent: November 16, 2004Assignee: Equistar Chemicals, LPInventors: Shaotian Wang, Gregory G. Hlatky
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Patent number: 6818712Abstract: Supported ionic metallocene catalyst systems may be prepared by a method comprising the following steps: i) mixing together in a suitable solvent: a) an organometallic compound, and b) an ionic activator comprising a cation and an anion; ii) addition of the mixture from step (i) to a support material; iii) addition of a metallocene complex in a suitable solvent; iv) further addition of an organometallic compound in a suitable solvent; and v) removal of the solvent. The preferred supported catalysts comprise a constrained geometry metallocene complex for example (t-butylamido)(tetramethyl-→5-cyclopentadienyl) dimethyl silanetitanium-→4-1,3-pentadiene and are particularly suitable for the polymerisation of ethylene or the copolymerisation of ethylene and &agr;-olefins having from 3 to 10 carbons in the gas phase.Type: GrantFiled: January 16, 2003Date of Patent: November 16, 2004Assignee: BP Chemicals LimitedInventors: Christel Marie-Claude Mealares, Michael John Taylor
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Publication number: 20040225089Abstract: A catalyst system useful to polymerize and co-polymerize polar and non-polar olefin monomers is formed by in situ reduction with a reducing agent of a catalyst precursor comprisingType: ApplicationFiled: May 10, 2004Publication date: November 11, 2004Inventors: Tobin J. Marks, Lubin Luo, Sung Cheol Yoon
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Publication number: 20040224838Abstract: A modified aluminum oxy compound (A) obtained by reacting an aluminum oxy compound (a), water (b) and a compound having a hydroxyl group (c); a polymerization catalyst component comprising the modified aluminum oxy compound; a polymerization catalyst obtained by contacting said modified aluminum oxy compound (A), a transition metal compound (B) and optionally an organoaluminum compound (C) and a specified boron compound; and a process for producing an olefin polymer or an alkenyl aromatic hydrocarbon polymer with the polymerization catalyst.Type: ApplicationFiled: December 15, 2003Publication date: November 11, 2004Inventors: Masayuki Fujita, Masaaki Nabika, Tatsuya Miyatake, Tsuyoshi Watanabe, Yoshinori Seki, Nobuo Oi
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Patent number: 6815514Abstract: The invention describes ligands of formula (I), wherein LIG represents an &eegr;5-ligand substituted by a group R1 and a group (R″)m; X represents a 1 to 3 atom bridge; Y represents a nitrogen or phosphorus atom; Z represents a carbon, nitrogen or phosphorus atom.Type: GrantFiled: May 28, 2003Date of Patent: November 9, 2004Assignee: Borealis Technology OyInventors: Ove Andell, Janne Maaranen, Jouni Hoikka, Tiina Vanne, Soile Rautio
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Publication number: 20040220359Abstract: This invention relates to a continuous process to produce a branched olefin polymer comprising:Type: ApplicationFiled: April 15, 2004Publication date: November 4, 2004Inventors: Ramin Abhari, Charles Lewis Sims, Peijun Jiang, David Raymond Johnsrud, Jo Ann Marie Canich
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Patent number: 6812289Abstract: This invention relates to cast films prepared from interpolymer compositions comprising; (A) a substantially linear ethylene/&agr;-olefin interpolymer present in the composition in an amount of from about 10 to about 100% by weight based on the combined weight of Components A and B; and (B) a heterogeneous interpolymer present in the composition in an amount of from about 0 to about 90% by weight based on the combined weight of Components A and B; and wherein said interpolymer composition has an I10/I2 value of < about 10.0 and is characterized as having a viscosity at 100 rad/s and a relaxation time (&tgr;) which satisfies either of the following relationships; Log(viscosity at 100 rad/s)≦4.43−0.8 log(I2) or log(&tgr;)>−1.2−1.3* log(I2) The interpolymer compositions are useful in cast stretch film manufacture with the resulting cast films having an excellent balance of strength and processability.Type: GrantFiled: July 22, 2002Date of Patent: November 2, 2004Assignee: Dow Global Technologies Inc.Inventors: Jozef J. I. Van Dun, Jacquelyn A. deGroot, Pradeep Jain, Kalyan Sehanobish, Pak-Wing S. Chum
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Publication number: 20040214716Abstract: Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a triple-decker bimetallic complex. The complex includes two Group 3-10 transition metals and a delocalized dianionic ligand that is pi-bonded to each of the metals. The behavior of the catalysts can be modified by choice of each metal, by the choice of the dianionic ligand, or by choice of the ancillary ligands. The invention provides a new way to make a large variety of catalyst systems.Type: ApplicationFiled: April 23, 2003Publication date: October 28, 2004Inventors: Sandor Nagy, Joel A. Mutchler
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Publication number: 20040214715Abstract: A catalyst system useful for polymerizing olefins is disclosed. The catalyst system includes an organometallic complex that incorporates a Group 3 to 10 transition metal and a hydroxyl-depleted calixarene ligand that is chelated to the metal. Molecular modeling studies reveal that organometallic complexes incorporating such calixarene ligands, when combined with an activator such as MAO, should actively polymerize olefins.Type: ApplicationFiled: April 23, 2003Publication date: October 28, 2004Inventor: Sandor Nagy
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Patent number: 6809209Abstract: The invention addresses an composition of matter comprising a cation [Ct]+ and an anion [A]−, the anion comprises a core Group-13 element bound to partially or completely fluorinated fluoroaryl ligands, at least one of the fluoroaryl ligands is substituted with a Group-15 element that has been rendered essentially inert for subsequent chemical reaction through its unbonded electron pair by substituting an electron-withdrawing group on it. [Ct]+ may be selected from anilinium and ammonium cations, trityl carbenium cations, Group-11 metal cations, silylium cations, the cations of the hydrated salts of Group-1 or -2 metals, and derivatives of the foregoing anilinium, ammonium, trityl carbenium, and silylium cations containing C1-C20 hydrocarbyl, hydrocarbylsilyl, or hydrocarbylamine substituents for one or more hydrogen atoms of said cations.Type: GrantFiled: September 17, 2002Date of Patent: October 26, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventor: George Rodriguez
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Publication number: 20040209764Abstract: 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: ApplicationFiled: April 15, 2003Publication date: October 21, 2004Inventors: Orass Hamed, Akhlaq A. Moman, Atieh Abu-Raqabah, Abdulaziz Al-Nezari
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Publication number: 20040209767Abstract: A contact product obtained by a process comprising the step of contacting a compound (a) represented by the formula, M1L1r, a compound (b) represented by the formula, R1s-1T1H a compound (c) represented by the formula, R2t-2T2H2, and a nonionic surfactant (d) having no active hydrogen; a catalyst component for addition polymerization comprising said contact product; a catalyst for addition polymerization obtained by a process comprising the step of contacting said catalyst component with a compound of a metal selected from the group consisting of metals of the Groups 3 to 12 and Lanthanide Series of the Periodic Table, and optionally an organoaluminum compound; and a process for producing an addition polymer comprising the step of polymerizing an addition polymerizable monomer in the presence of said catalyst.Type: ApplicationFiled: January 20, 2004Publication date: October 21, 2004Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Kazuo Takaoki
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Publication number: 20040210013Abstract: The present invention relates to propylene based copolymers and to processes for producing propylene based copolymers, particularly propylene-ethylene copolymers. These unique copolymers are prepared using metallocene catalysts.Type: ApplicationFiled: March 18, 2004Publication date: October 21, 2004Inventor: Patrick Brant
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Publication number: 20040209762Abstract: A metal compound obtained by a process comprising the step of contacting, in a specific ratio, a compound represented by the formula M1L1r, a compound represented by the formula R1s-1TH, and a compound represented by the formula R24-nJ(OH)n; a catalyst component for addition polymerization comprising the metal compound; a catalyst for addition polymerization using the catalyst component; and a process for producing an addition polymer using the catalyst.Type: ApplicationFiled: January 9, 2004Publication date: October 21, 2004Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kazuo Takaoki, Hideki Oshima, Makoto Satoh
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Patent number: 6806220Abstract: This application discloses triphenyl carbenium NCA's as catalyst activators for a class of asymmetrically bridged hafnocene catalyst precursors. These catalyst precursors are activated into olefin polymerization catalysts and are suitable for gas, solution, and slurry-phase polymerization reactions. The disclosed bridge is methylenyl- or silanylenyl-based and is optionally, alkyl or aryl substituted. The catalytic activity of the disclosed hafnocene catalyst precursors is substantially enhanced over identical catalysts that are activated with other activators.Type: GrantFiled: June 27, 2002Date of Patent: October 19, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Donna Jean Crowther, Bernard Jean Folie
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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