Having The Transition Metal Bonded Directly To Carbon Patents (Class 526/941)
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Patent number: 8802797Abstract: 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: GrantFiled: September 27, 2012Date of Patent: August 12, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: John R Hagadorn, Patrick Brant, Robbert Duchateau, Rafael Sablong
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Patent number: 8735502Abstract: This invention relates to a functionalized co-oligomer having an Mn of 300 to 30,000 g/mol comprising 10 to 90 mol % propylene and 10 to 90 mol % of ethylene, wherein the oligomer has at least X % allyl chain ends, where: 1) X=(?0.94 (mole % ethylene incorporated)+100), when 10 to 60 mole % ethylene is present in the co-oligomer, and 2) X=45, when greater than 60 and less than 70 mole % ethylene is present in the co-oligomer, and 3) X=(1.83*(mole % ethylene incorporated)?83), when 70 to 90 mole % ethylene is present in the co-oligomer. This invention also relates to a functionalized homo-oligomer, comprising propylene, wherein the oligomer has: at least 93% allyl chain ends, an Mn of about 500 to about 20,000 g/mol, an isobutyl chain end to allylic vinyl group ratio of 0.8:1 to 1.2:1.0, and less than 100 ppm aluminum. This invention also relates to a process of making functionalized homo- or co-oligomer, comprising propylene, wherein the productivity is greater than 4500 g/mmol Hf (or Zr)/hour.Type: GrantFiled: January 29, 2013Date of Patent: May 27, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Patrick Brant, Donna J. Crowther
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Patent number: 8735519Abstract: The invention is directed to a metallocene catalyst system and a process for preparing the system. The metallocene catalyst system comprises a support and metallocene bound substantially throughout the support. The selection of certain supports facilitates the production of metallocene catalyst systems having increased catalytic activity than previously recognized.Type: GrantFiled: April 9, 2013Date of Patent: May 27, 2014Assignee: Fina Technology, Inc.Inventors: Jun Tian, William Gauthier, David Rauscher, Shady Henry
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Patent number: 8653209Abstract: This invention relates to a co-oligomer having an Mn of 300 to 30,000 g/mol comprising 10 to 90 mol % propylene and 10 to 90 mol % of ethylene, wherein the oligomer has at least X % allyl chain ends, where: 1) X=(?0.94(mole % ethylene incorporated)+100), when 10 to 60 mole % ethylene is present in the co-oligomer, and 2) X=45, when greater than 60 and less than 70 mole % ethylene is present in the co-oligomer, and 3) X=(1.83*(mole % ethylene incorporated)?83), when 70 to 90 mole % ethylene is present in the co-oligomer. This invention also relates to a homo-oligomer, comprising propylene, wherein the oligomer has: at least 93% allyl chain ends, an Mn of about 500 to about 20,000 g/mol, an isobutyl chain end to allylic vinyl group ratio of 0.8:1 to 1.2:1.0, and less than 100 ppm aluminum. This invention also relates to a process of making homo-oligomer, comprising propylene, wherein the productivity is greater than 4500 g/mmol Hf (or Zr)/hour.Type: GrantFiled: November 6, 2012Date of Patent: February 18, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Patrick Brant, Donna J. Crowther, Andrew G. Narvaez, Jr.
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Patent number: 8507621Abstract: Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.Type: GrantFiled: October 30, 2012Date of Patent: August 13, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Kumundini C. Jayaratne, Michael D. Jensen, Qing Yang
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Patent number: 8501892Abstract: 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: GrantFiled: August 26, 2011Date of Patent: August 6, 2013Assignee: Exxonmobil Chemical Patents Inc.Inventors: Sudhin Datta, Bruce A. Harrington, Weiguo Hu, Periagaram S. Ravishankar, George Rodriguez
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Patent number: 8497330Abstract: Methods for gas phase olefin polymerization are provided. The method can include combining a spray dried catalyst system with a diluent to produce a catalyst slurry. The catalyst system can include a metallocene compound. Ethylene, a continuity additive, and the catalyst slurry can be introduced to a gas phase fluidized bed reactor. The reactor can be operated at conditions sufficient to produce a polyethylene. The spray dried catalyst system can have a catalyst productivity of at least 12,000 grams polyethylene per gram of the catalyst system.Type: GrantFiled: December 22, 2010Date of Patent: July 30, 2013Assignee: Univation Technologies, LLCInventors: F. David Hussein, Kevin J. Cann, Ann M. Schoeb-Wolters, Phuong A. Cao, Bruce J. Savatsky, Eric J. Markel, Daniel P. Zilker, Jr., Garth R. Giesbrecht
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Patent number: 8481665Abstract: Use of a metallocene compound of general formula Ind2R?MQ2 as a component of a catalyst system in producing polyethylene, wherein each Ind is the same or different and is indenyl or substituted indenyl; R? is a bridge which comprises a C1 to C4 alkylene radical, a dialkyl germanium or silicon or siloxane, alkyl phosphine or amine, which bridge is substituted or unsubstituted, M is a Group IV metal or vanadium and each Q is hydrocarbyl having 1 to 20 carbon atoms or halogen; and the ratio of meso to racemic forms of the metallocene in the catalyst system is at least 1:3. The metallocene may be supported. The ethylene may be polymerized in a reaction medium that is substantially free of any external comonomer, with comonomer being formed in situ. The produced polyethylene may have long chain branching. The produced polyethylene may be atactic.Type: GrantFiled: June 26, 2012Date of Patent: July 9, 2013Assignee: Total Research & Technology FeluyInventors: Abbas Razavi, Liliana Peters
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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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Patent number: 8450437Abstract: The present techniques relate to catalyst compositions, methods, and polymers encompassing a Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, typically in combination with a cocatalyst, and a activator. The compositions and methods presented herein include ethylene polymers with low melt elasticity.Type: GrantFiled: January 12, 2012Date of Patent: May 28, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Max P. McDaniel, Joel L. Martin, Youlu Yu, David C. Rohlfing, Michael D. Jensen
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Patent number: 8436112Abstract: The invention is directed to a metallocene catalyst system comprising an inert silica support having pores with a peak pore volume of greater than about 0.115 mL/g at a pore diameter between about 250 Angstroms and about 350 Angstroms, and an alumoxane activator, with the metallocene being bound substantially throughout the support. The activator is grafted to the support in a solvent at a reflux temperature of toluene to obtain an aluminoxane on silica, and a metallocene component is added to make a MCS having a metallocene loading of about 2 wt %. This facilitates the production of metallocene catalyst systems having increased catalytic activity than previously recognized that is at least about 20 percent higher than the catalytic activity for a metallocene loading of about 1 wt % where the activator is grafted to the support at room temperature.Type: GrantFiled: January 14, 2008Date of Patent: May 7, 2013Assignee: Fina Technology, Inc.Inventors: Jun Tian, William Gauthier, David Rauscher, Shady Henry
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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: 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: 8378048Abstract: Provided are amorphous ethylene propylene copolymer, compositions thereof, and methods for making same, whereby the copolymer can include of from about 40 wt. % to about 60 wt. % ethylene derived units; and of from about 60 wt. % to about 40 wt. % propylene derived units. The copolymer can be characterized by having no discernable melting point as measured by DSC, an MFRR (MI (21.6 kg; 230° C.)/MI (2.16 kg; 230° C.)) (MI (2.16 kg; 230° C.)) of about 38 or more, a molecular weight distribution (MWD) of from about 1.5 to about 2.5, and a shear viscosity ?* at 0.01 rad/sec measured at 70° C. that satisfies the relation |?*|(70° C.; 0.01 rad/sec)>1.2*106*|MFR|?0.77, wherein MFR is the melt flow rate.Type: GrantFiled: January 11, 2011Date of Patent: February 19, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Rainer Kolb, Jo Ann Marie Canich, Liehpao Oscar Farng, Sudhin Datta
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Patent number: 8378043Abstract: A process for the production of an ethylene alpha-olefin copolymer is disclosed. The process includes polymerizing ethylene and at least one alpha-olefin by contacting the ethylene and the at least one alpha-olefin with a metallocene catalyst in at least one gas phase reactor at a reactor pressure of from 0.7 to 70 bar and a reactor temperature of from 20° C. to 150° C. to form an ethylene alpha-olefin copolymer. The resulting ethylene alpha-olefin copolymer may have a density of 0.927 g/cc or greater and environmental stress crack resistance (ESCR) of 500 hr or more when measured according to ASTM 1693/B in 10% Igepal.Type: GrantFiled: December 15, 2010Date of Patent: February 19, 2013Assignee: Univation Technologies, LLCInventors: Blair Alfred Graham, Mark P. Ossowski, James M. Farley, Rainer Kolb
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Patent number: 8378042Abstract: Extruded, copolymer pellet compositions and methods for making the same. A copolymer pellet composition can have an ethylene content of about 40 wt % to about 50 wt % and a propylene content of about 50 wt % to about 60 wt %, based on total weight of the copolymer, wherein the copolymer has a MFR (230° C./2.16 kg) of from about 3.0 g/10 min and about 25 g/10 min; a MWD (Mw/Mn) of about 2.3 or less; and no measurable melting peak, as measured by DSC.Type: GrantFiled: September 29, 2009Date of Patent: February 19, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Richard Cheng-Ming Yeh, Rainer Kolb
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Patent number: 8367853Abstract: The present techniques relates generally to polyolefin catalysts and, more specifically, to preparing a precursor compound for an unsymmetric metallocene catalyst, for using the precursor compound to prepare catalysts, and for employing the precursor compounds to prepare catalysts for polyolefin polymerizations.Type: GrantFiled: July 19, 2011Date of Patent: February 5, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Rex E. Murray, Richard M. Buck
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Patent number: 8367787Abstract: Use of a metallocene compound of general formula Ind2R?MQ2 as a component of a catalyst system in producing polyethylene, wherein each Ind is the same or different and is indenyl or substituted indenyl; R? is a bridge which comprises a C1 to C4 alkylene radical, a dialkyl germanium or silicon or siloxane, alkyl phosphine or amine, which bridge is substituted or unsubstituted, M is a Group IV metal or vanadium and each Q is hydrocarbyl having 1 to 20 carbon atoms or halogen; and the ratio of meso to racemic forms of the metallocene in the catalyst system is at least 1:3. The metallocene may be supported. The ethylene may be polymerized in a reaction medium that is substantially free of any external comonomer, with comonomer being formed in situ. The produced polyethylene may have long chain branching. The produced polyethylene may be atactic.Type: GrantFiled: April 29, 2008Date of Patent: February 5, 2013Assignee: Total Petrochemicals Research FeluyInventors: Abbas Razavi, Liliane Peters
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Patent number: 8329835Abstract: Polyethylene compositions having improved properties are provided. In one aspect, a polyethylene composition having a long chain branching index (g?avg) of 0.5 to 0.9; a Melt Flow Rate (MFR) of greater than (49.011×MI(?0.4304)), where MI is Melt Index; and a weight average molecular weight to number average molecular weight (Mw/Mn) of less than or equal to 4.6 is provided.Type: GrantFiled: October 9, 2008Date of Patent: December 11, 2012Assignee: Univation Technologies, LLCInventors: Mark G. Goode, Rainer Kolb, Chi-I Kuo, Tae Hoon Kwalk, Dongming Li, Ching-Tai Lue, Francis C. Rix, Daniel P. Zilker, Jr.
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Patent number: 8318873Abstract: Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.Type: GrantFiled: February 3, 2011Date of Patent: November 27, 2012Assignee: Chevron Phillips Chemical Company LPInventors: Kumudini C. Jayaratne, Michael D. Jensen, Qing Yang
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Patent number: 8283428Abstract: 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: June 19, 2009Date of Patent: October 9, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Patrick Brant, Andrew G. Narvaez, Jr., Donna J. Crowther
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Polyolefins prepared from a metallocene and a new single site catalyst component in a single reactor
Patent number: 8178634Abstract: 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: October 20, 2005Date of Patent: May 15, 2012Assignee: Total Petrochemicals Research FeluyInventor: Abbas Razavi -
Patent number: 8178635Abstract: Provided is an ?-olefin polymer having an excellent balance between a molecular weight and a melting point, which is a polymer of one or more kinds of ?-olefins having 20 to 40 carbon atoms, and which meets the following requirements (1) to (4): (1) the ?-olefin polymer has a molecular weight distribution (Mw/Mn) determined from its weight average molecular weight (Mw) and number average molecular weight (Mn) in terms of polystyrene measured by a GPC method of 2 or less, and has an Mw of 5,000 or less; (2) measurement of a melting point (Tm) of the ?-olefin polymer with DSC shows one melting peak, a melting heat absorption (AH) calculated from an area of the melting peak is 20 J/g or more, and the melting peak has a half value width of 10° C. or less; (3) when the Mw falls within a range of 1,000 to 5,000 and an average number of carbon atoms (Cn) of the ?-olefins falls within a range of 20 to 40, the Mw, the Cn, and the Tm measured with the DSC satisfy the relationship, 0.0025×Mw+(Cn×3.3812?29.5)?Tm?0.Type: GrantFiled: February 18, 2008Date of Patent: May 15, 2012Assignee: Idemitsu Kosan Co., Ltd.Inventors: Takenori Fujimura, Masami Kanamaru, Yutaka Minami, Takuji Okamoto
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Patent number: 8178636Abstract: A process for obtaining atactic 1-butene polymer optionally containing at least one comonomer selected from ethylene, propylene or an alpha-olefin of formula CH2?CHRo, wherein Ro is a linear or branched C3-C20 alkyl group, comprising the step of polymerizing 1-butene and optionally ethylene, propylene or said alpha-olefin, in the presence of a catalyst system obtainable by contacting: a) at least one metallocene compound of formula (I) in its meso or meso-like form wherein M is an atom of a transition metal; p is an integer from 0 to 3; X, same or different, is a hydrogen atom, a halogen atom, or a hydrocarbon group; L is a divalent C1-C40 hydrocarbon radical optionally containing heteroatoms belonging to groups 13-17 of the Periodic Table of the Elements; R1 and R2, are C1-C40 hydrocarbon radicals; T, equal to or different from each other, is a moiety of formula (IIa) or (IIb): wherein R3 is a C1-C40 hydrocarbon radical; R4 and R6, are hydrogen atoms or C1-C40 hydrocarbon radicals; R5 is aType: GrantFiled: April 25, 2005Date of Patent: May 15, 2012Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Simona Guidotti
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Patent number: 8163853Abstract: This invention relates to new transition metal complexes for use in olefin polymerization and oligomerization. The active complex is a pyridine amide having a metallocenyl substituent as part of the ligand structure. The invention also relates to novel precursors for the ligand systems of such complexes obtained from metallocenyl-substituted pyridine compounds through sequences involving addition-condensation or lithium-halogen exchange (with subsequent metathesis) reactions.Type: GrantFiled: August 13, 2010Date of Patent: April 24, 2012Assignee: Exxonmobil Chemical Patents Inc.Inventor: John R. Hagadorn
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Patent number: 8153745Abstract: Multi-branched polypropylene having a g? of less than 1.00.Type: GrantFiled: April 16, 2007Date of Patent: April 10, 2012Assignee: Borealis Technology OyInventors: Eberhard Ernst, Manfred Stadlbauer
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Patent number: 8119553Abstract: The present techniques relate to catalyst compositions, methods, and polymers encompassing a Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, typically in combination with a cocatalyst, and a activator. The compositions and methods presented herein include ethylene polymers with low melt elasticity.Type: GrantFiled: September 28, 2007Date of Patent: February 21, 2012Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Max P. McDaniel, Joel L. Martin, Youlu Yu, David C. Rohlfing, Michael D. Jensen
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Patent number: 8084559Abstract: A transition metal complex represented by formula [1], and its production process; a substituent-carrying fluorene compound represented by formula [2], and its production process; an olefin polymerization catalyst component comprising the complex; an olefin polymerization catalyst obtained by contacting the catalyst component with a defined aluminum compound and/or a defined boron compound; and a production process of an olefin polymer using the catalyst:Type: GrantFiled: January 24, 2006Date of Patent: December 27, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Taichi Senda, Hidenori Hanaoka, Shinya Nakahara, Kenji Sogoh
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Patent number: 8030421Abstract: 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 bridged 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 oxygen (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 aluminum compound.Type: GrantFiled: October 22, 2008Date of Patent: October 4, 2011Assignee: Basell Polyolefine GmbHInventor: Luigi Resconi
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Patent number: 8026323Abstract: 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: GrantFiled: April 19, 2007Date of Patent: September 27, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Sudhin Datta, Bruce A. Harrington, Weiguo Hu, Periagaram S. Ravishankar, George Rodriguez
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Patent number: 8013177Abstract: The present techniques relates generally to polyolefin catalysts and, more specifically, to preparing a precursor compound for an unsymmetric metallocene catalyst, for using the precursor compound to prepare catalysts, and for employing the precursor compounds to prepare catalysts for polyolefin polymerizations.Type: GrantFiled: May 14, 2009Date of Patent: September 6, 2011Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Richard M. Buck, Rex E. Murray
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Patent number: 7968665Abstract: A 1-butene polymer satisfying the following (1), (2) and either (3) or (3?): a process for producing the polymer; a resin modifier comprising the polymer; and a hot-melt adhesive containing the polymer. (1) The intrinsic viscosity [?] as measured in tetralin solvent at 135° C. is 0.01 to 0.5 dL/g. (2) The polymer is a crystalline resin having a melting point (Tm-D) of 0 to 100° C., the melting point being defined as the top of the peak observed on the highest-temperature side in a melting endothermic curve obtained with a differential scanning calorimeter (DSC) in a test in which a sample is held in a nitrogen atmosphere at ?10° C. for 5 min and then heated at a rate of 10° C./min. (3) The stereoregularity index {(mmmm)/(mmrr+rmmr)} is 30 or lower. (3?) The mesopentad content (mmmm) determined from a nuclear magnetic resonance (NMR) spectrum is 68 to 73%.Type: GrantFiled: September 21, 2007Date of Patent: June 28, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yutaka Minami, Masami Kanamaru, Toyozo Fujioka, Tomoaki Takebe, Masao Inoue
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Patent number: 7915359Abstract: A propylene resin composition which is a three-component material is improved in rigidity, heat resistance, and impact resistance while maintaining a satisfactory balance among these and further improved in low-temperature (about ?30° C.) impact resistance. A propylene resin composition as described in the specification.Type: GrantFiled: September 22, 2006Date of Patent: March 29, 2011Assignee: Japan Polypropylene CorporationInventors: Shinichi Kitade, Hideshi Uchino, Jun Shinozaki, Kuninori Takahashi, Kenji Masuda
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Patent number: 7906599Abstract: Disclosed is a novel transition metal compound which is used for forming a metallocene catalyst for olefin polymerization. Specifically disclosed is a novel transition metal compound represented by the general formula below which enables to form a metallocene catalyst that has a balanced reactivity with ethylene and a comonomer selected from ?-olefins having 3-20 carbon atoms and enables to produce an ?-olefin polymer having a high molecular weight. Also specifically disclosed are a catalyst for olefin polymerization containing such a transition metal compound, and a method for producing a propylene/ethylene-?-olefin block copolymer wherein such a catalyst is used.Type: GrantFiled: April 17, 2007Date of Patent: March 15, 2011Assignee: Japan Polypropylene CorporationInventors: Hisashi Ohtaki, Naoshi Iwama, Masami Kashimoto, Tomohiro Kato, Tsutomu Ushioda
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Patent number: 7858718Abstract: Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a Group 4 metal complex that incorporates a dianionic, tridentate 2-aryl-8-anilinoquinoline ligand. In one aspect, supported catalysts are prepared by first combining a boron compound having Lewis acidity with excess alumoxane to produce an activator mixture, followed by combining the activator mixture with a support and the tridentate, dianionic Group 4 metal complex. The catalysts are easy to synthesize, support, and activate, and they enable facile production of high-molecular-weight polyolefins.Type: GrantFiled: July 22, 2009Date of Patent: December 28, 2010Assignee: Equistar Chemicals, LPInventors: Sandor Nagy, Linda N. Winslow, Shahram Mihan, Reynald Chevalier, Lenka Lukesova, Ilya E. Nifant'ev, Pavel V. Ivchenko, Michael W. Lynch
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Patent number: 7842763Abstract: 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: October 6, 2008Date of Patent: November 30, 2010Assignee: Chevron Phillips Chemical Company LPInventors: Michael D. Jensen, Max P. McDaniel, Joel L. Martin, Elizabeth A. Benham, Randy Muninger, Gary Jerdee, Ashish M. Sukhadia, Qing Yang, Matthew G. Thorn
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Patent number: 7834112Abstract: 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: GrantFiled: September 10, 2002Date of Patent: November 16, 2010Assignee: Basell Polyolefine GmbHInventors: Shahram Mihan, Birgit Dorer, Markus Enders, Pablo Fernandez
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Patent number: 7803887Abstract: A bridged metallocene compound of formula (I) wherein: M is a transition metal; X, is a hydrogen atom, a halogen atom, or a hydrocarbon group optionally containing hetematoms; L is a divalent bridging group; R1 is a linear C1C40 hydrocarbon radical optionally containing hetexoatonis; T1, T2, T3 and T4 are an oxygen or sulfur atom or a C(R18)2 group with the proviso that at least one group between T1 and T2 is an oxygen or a sulfur atom; wherein R18, are hydrogen atoms or a C1-C4O hydrocarbon radical; n is 1, 2 or 3; R4 is a hydrogen atom or a C1-C40 hydro carbon radical; W is an aromatic 5 or 6 membered ring.Type: GrantFiled: March 15, 2006Date of Patent: September 28, 2010Assignee: Basell Polyolefine GmbHInventors: Marco Sacco, Ilya Nifant'ev, Pavel Ivchenko, Vladimir Bagrov, Francesca Focante
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Patent number: 7776980Abstract: Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one bridged keto, thioketo, imino or phosphino group, a catalyst system comprising at least one of the monocyclopentadienyl complexes and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system.Type: GrantFiled: March 18, 2006Date of Patent: August 17, 2010Assignee: Basell Polyolefine GmbHInventors: Shahram Mihan, Benno Bildstein, Georg Steiner
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Patent number: 7767771Abstract: A process is disclosed for the preparation of zinc alkyl chain growth products via a catalysed 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 28, 2006Date of Patent: August 3, 2010Assignee: Ineos Europe LimitedInventors: George Johan Peter Britovsek, Steven Alan Cohen, Vernon Charles Gibson
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Patent number: 7709586Abstract: An olefin polymerization catalyst which includes an organometallic compound of the following Formula 1; aluminoxane; and an organic transition metal compound of the following Formula 2: M1R11R2mR3n or R2mR3nM1R11M1R2mR3n??[Formula 1 ] in Formula 1, M1 is selected from the group consisting of Group 2A, 2B and 3A of the Periodic Table, R1 is cyclic hydrocarbyl group of 5 to 30 carbon atoms, R2 and R3 are independently hydrocarbyl group of 1 to 24 carbon atoms, l is an integer of more than 1, m and n are independently an integer of 0 to 2, l+m+n is equal to the valence of M1, Q is a divalent group; M2R4pXq??[Formula 2 ] in Formula 2, M2 is Ti, Zr or Hf; R4 is cyclic hydrocarbyl group of 5 to 30 carbon atoms, X is halogen atom, p is an integer of 0 or 1, q is an integer of 3 or 4, p+q is equal to the valence of metal M2.Type: GrantFiled: December 14, 2006Date of Patent: May 4, 2010Assignee: Daelim Industrial Co., Ltd.Inventors: Sah-Mun Hong, Sung-Woo Kang, Young-Jae Jun, Jin-Sook Oh
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Patent number: 7666959Abstract: The present invention discloses a metallocene catalyst system for producing polyolefins comprising: A. a hafnocene-based catalyst component suitable for producing the high molecular weight fraction of the polyolefin; B. one or more metallocene or post-metallocene components different from the component A and suitable for producing the low molecular weight fraction of the polyolefin; C. an activating agent having a low or no coordinating capability.Type: GrantFiled: September 24, 2003Date of Patent: February 23, 2010Assignee: Total Petrochemicals Research FeluyInventor: Abbas Razavi
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Patent number: 7629481Abstract: Provided are a bridged metallocene compound particularly suitable for copolymerization of ethylene and alpha-olefin or cyclic olefin, a process of preparing the metallocene compound, and a process of preparing polyolefin using the metallocene compound. The bridged metallocene compound has low steric hindrance and good (co)polymerization activity, and thus, exhibits good activity in copolymerization of ethylene and alpha-olefin such as 1-hexene or 1-octene. Furthermore, the process of preparing the bridged metallocene compound is simplified, and thus, suitable for mass production.Type: GrantFiled: September 23, 2005Date of Patent: December 8, 2009Assignee: LG Chem, Ltd.Inventors: Choong Hoon Lee, Jong Joo Ha, Seung Whan Jung, Eunjung Lee, Beomdoo Seo, Young Whan Park, Hyosun Lee, Sung Don Hong, Young Chul Won, Bun Yeoul Lee
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Patent number: 7615597Abstract: A process for producing a polymer of ethylene containing from 0.1 to 99% by mol of one or more derived units of alpha-olefins and optionally from 0 to 5% by mol polyene, comprising contacting ethylene, one or more alpha-olefins and optionally said polyene, in the presence of a catalyst system obtainable by contacting: a) a metallocene compound of formula (I): wherein M is zirconium, hafnium or titanium; X, is a hydrogen atom, a halogen atom, or a hydrocarbon group; R1 is a hydrocarbon group; R2, R3, R4 and R5 are hydrogen atoms, or hydrocarbon groups; R6 is a hydrocarbon group; L is a divalent bridging group, and T is a divalent radical of formula (II) or (III): wherein R8 and R9 are hydrogen or hydrocarbon groups; and b) an alumoxane or a compound capable of forming an alkyl metallocene cation.Type: GrantFiled: August 19, 2003Date of Patent: November 10, 2009Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Anna Fait, Nicoletta Mascellani
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Patent number: 7598329Abstract: The present invention relates to a process for manufacturing ultra high molecular weight polymers by means of polymerization and co-polymerization of olefins using novel bridged metallocene catalysts as well as their catalyst systems.Type: GrantFiled: November 3, 2006Date of Patent: October 6, 2009Assignee: Ticona GmbHInventors: Jens Panitzky, Jens Ehlers, Tim Dickner, Jorg Schottek
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Patent number: 7592402Abstract: A process for producing a modified particle, which comprises the step of contacting a compound (a) defined by the formula, M1L13, a compound (b) defined by the formula, R1t-1TH, a compound (c) or (e) defined by the formula, R2m-uM2(OH)u or R24-nJ(OH)n, respectively, and a particle (d) with one another; a carrier comprising a modified particle produced by said process; a catalyst component (A) comprising a modified particle produced by said process; a process for producing a catalyst for addition polymerization, which comprises the step of contacting said catalyst component (A), a transition metal compound (B) and an optional organoaluminum compound (C) with one another; and a process for producing an addition polymer, which comprises the step of addition polymerizing an addition-polymerizable monomer in the presence of a catalyst for addition polymerization produced by said process.Type: GrantFiled: January 28, 2005Date of Patent: September 22, 2009Assignee: Sumitomo Chemical Company, LimitedInventors: Hideki Oshima, Makoto Satoh
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Patent number: 7592403Abstract: The present invention provides ethylene polymers capable of preparing various molded articles such as films, sheets or the like, and having excellent moldability, particularly excellent high-speed moldability. The ethylene polymers of the present invention have a density and molecular weight distribution in specific ranges. The first ethylene polymer is characterized by having (C) a ratio (MFR10/MFR2) of a melt flow rate (MFR10) at 190° C. under a load of 10 Kg to a melt flow rate (MFR2) at 190° C. under a load of 2.16 Kg of from 16.2 to 50. The second ethylene polymer is characterized by having (C) a ratio (MFR10/MFR2) from 12 to 50. The third ethylene polymer is characterized by having (D) a relation of ?2/?1?18 where ?1 and ?2 denote angular velocity (rad/sec) when complex elastic modulus G* (dyne/cm2) at 200° C. is 5.0×105 dyne/cm2 and 2.0×106 dyne/cm2, respectively, which are determined by measurement of the angular velocity dependence of the complex elastic modulus of the copolymer.Type: GrantFiled: August 4, 2005Date of Patent: September 22, 2009Assignee: Mitsui Chemicals, Inc.Inventors: Norio Kashiwa, Shingo Matsuo, Shinichi Kojoh, Mamoru Takahashi
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Patent number: 7589160Abstract: A process for obtaining 1-butene polymers comprising the step of contacting under polymerization conditions 1-butene and optionally ethylene, propylene or said alpha-olefin, in the presence of a catalyst system obtainable by contacting: a) a metallocene compound of formula (I): wherein: M is an atom of a transition metal belonging to group 3, 4, 5, 6 or to the lanthanide or actinide groups in the Periodic Table of the Elements; p is an integer from 0 to 3; X, is a hydrogen atom, a halogen atom, or a hydrocarbon group; R1 is a hydrocarbon group; R2, R3 and R6 are hydrogen atoms or hydrocarbon groups; R4 and R5 join to form a condensed saturated or unsaturaded 4–7 membered ring; and L is a divalent bridging group; and b) an alumoxane or a compound able to form an alkylmetallocene cation.Type: GrantFiled: November 3, 2003Date of Patent: September 15, 2009Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Antonio Cascio Ingurgio
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Patent number: 7579417Abstract: A metallocene compound of formula (I) wherein: M is an atom of a transition metal; X, same or different, is a hydrogen atom, a halogen atom, or a R, OR, OSO2CF3, OCOR, SR, NR2 or PR2 group, wherein R is C1-C40 hydrocarbon group; L is a divalent bridging group; R1, is a C1-C40 hydrocarbon group; R3 is a C1-C40 hydrocarbon group; R2, R4, R5, R6, R7 and R8, equal to or different from each other, are hydrogen atoms or C1-C40 hydrocarbon groups.Type: GrantFiled: November 16, 2004Date of Patent: August 25, 2009Assignee: Basell Polyolefine GmbHInventors: Ilya Nifant'ev, Pavel V. Ivchenko, Ilya V. Tajdakov, Luigi Resconi
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Patent number: 7569713Abstract: The invention discloses a method for making a hydrogenated metallocene catalyst component comprising the steps of: 1. Providing a compound comprising at least one aromatic group; 2. Hydrogenating the at least one aromatic group in the presence of hydrogen and a hydrogenation catalyst to form a hydrogenated compound; and 3. Forming a metallocene catalyst component from the hydrogenated compound from step 2.Type: GrantFiled: March 2, 2004Date of Patent: August 4, 2009Assignee: Total Petrochemicals Research FeluyInventor: Abbas Razavi