Elemental Oxygen Or Nonmetallic Inorganic Oxygen-containing Material, Other Than Water Patents (Class 502/120)
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Patent number: 7566677Abstract: A method for preparing a spray dried catalyst and a low viscosity, low foam spray dried catalyst system for olefin polymerization are provided. In one aspect, the method includes preparing a catalyst system including one or more components selected from metallocenes, non-metallocenes, and activators, adding mineral oil to the catalyst system to form a slurry, and adding one or more liquid alkanes having three or more carbon atoms to the slurry in an amount sufficient to reduce foaming and viscosity of the slurry. In one aspect, the catalyst system includes one or more catalysts selected from metallocenes, non-metallocenes, and a combination thereof, wherein the catalyst system is spray dried. The system further includes mineral oil to form a slurry including a catalyst system, and one or more liquid alkanes having three or more carbon atoms in an amount sufficient to reduce foaming and viscosity of the slurry.Type: GrantFiled: April 10, 2007Date of Patent: July 28, 2009Assignee: Univation Technologies, LLCInventors: Natarajan Muruganandam, Kersten Anne Terry, Michael D. Awe, John H. Oskam
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Patent number: 7528090Abstract: A supported polymerisation catalyst system comprises a porous support, a polymerisation catalyst and a cocatalyst wherein the support has been treated with an inert material such as polyisobutene. The support is preferably silica and is preferably treated with the inert material prior to contact with the other components. Preferably the polymerisation catalyst is a metallocene and the polymerisation catalyst system reduces the initial peak isotherm allowing for a smoother activity increase in particular for polymerisations carried out in the gas phase.Type: GrantFiled: August 4, 2004Date of Patent: May 5, 2009Assignee: Ineos Europe LimitedInventors: Grant Berent Jacobsen, Brian Stephen Kimberley, Sergio Mastroianni
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Publication number: 20090099310Abstract: 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: ApplicationFiled: April 17, 2007Publication date: April 16, 2009Applicant: JAPAN POLYPROPYLENE CORPORATIONInventors: Hisashi Ohtaki, Naoshi Iwama, Masami Kashimoto, Tomohiro Kato, Tsutomu Ushioda
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Patent number: 7517939Abstract: This invention relates to catalyst compositions, methods, and polymers encompassing at least one Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, typically in combination with at least one cocatalyst, and at least one activator. The compositions and methods disclosed herein provide ethylene polymers with low levels of long chain branching.Type: GrantFiled: February 2, 2006Date of Patent: April 14, 2009Assignee: Chevron Phillips Chemical Company, LPInventors: Qing Yang, Michael D. Jensen, Joel L. Martin, Matthew G. Thorn, Max P. McDaniel, Youlu Yu, David C. Rohlfing
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Patent number: 7504463Abstract: The present invention is directed to the use of aluminum alkyl activators and co-catalysts to improve the performance of chromium-based catalysts. The aluminum alkyls allow for the variable control of polymer molecular weight, control of side branching while possessing desirable productivities, and may be applied to the catalyst directly or separately to the reactor. Adding the alkyl aluminum compound directly to the reactor (in-situ) eliminates induction times.Type: GrantFiled: August 11, 2005Date of Patent: March 17, 2009Assignee: Univation Technologies, LLCInventors: Kevin J Cann, Minghui Zhang, Jose Fernando Cevallos-Candau, John Moorhouse, Mark Gregory Goode, Daniel Paul Zilker, Jr., Maria Apecetche
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Patent number: 7468416Abstract: A process for the preparation of a catalyst system includes the steps of combining a Lewis base, an organic compound having at least one functional group containing active hydrogen, and an organometallic component with a particulate support material to provide an intermediate composition, and then combining the intermediate composition with one or more metallocene compound. The catalyst system is advantageously used for olefin polymerization.Type: GrantFiled: May 16, 2007Date of Patent: December 23, 2008Assignee: Lummus Technology Inc.Inventors: Thorsten Sell, Joerg Schottek, Nicola Stefanie Paczkowski, Andreas Winter
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Patent number: 7446072Abstract: The present invention relates to a process for preparing a catalyst solid for olefin polymerization, comprising a finely divided support, an aluminoxane and a metallocene compound, which comprises a) firstly combining the finely divided support with the aluminoxane and subsequently b) adding the reaction product of a metallocene compound with at least one organometallic compound to the modified support, catalyst solids obtainable by this process, catalyst systems comprising these catalyst solids, their use for the polymerization of olefins and a process for the polymerization of olefins.Type: GrantFiled: December 16, 2003Date of Patent: November 4, 2008Assignee: Basell Polyolefine GmbHInventors: Heike Gregorius, Volker Fraaije, Manfred Lutringshauser
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Patent number: 7442667Abstract: The present invention relates to a process for preparing a supported cocatalyst for olefin polymerization, which comprises reacting A) a support bearing functional groups, B) triethylaluminum and C) a compound of the formula (I), (R1)x—A—OH)y??(I) where A is an atom of group 13 or 15 of the Periodic Table, R1 are identical or different and are each, independently of one another, hydrogen, halogen, C1-C20-alkyl, C1-C20-haloalkyl, C1-C10-alkoxy, C6-C20-aryl, C6-C20-haloaryl, C6-C20-aryloxy, C7-C40-arylalky, C7-C40-haloarylalkyl, C7-C40-alkylaryl, C7-C40-haloalkylaryl or an OSiR32 group, where R2 are identical or different and are each hydrogen, halogen, C1-C20-alkyl, C1-C20-haloalkyl, C1-C10-alkoxy, C6-C20-aryl, C6-C20-haloaryl, C6-C20-aryloxy, C7-C40-arylalkyl, C7-C40-haloarylalkyl, C7-C40-alkylaryl or C7-C40-haloalkylaryl, y is 1 or 2 and x is 3 minus y.Type: GrantFiled: December 22, 2004Date of Patent: October 28, 2008Assignee: Bosell Polyolefine GmbHInventors: Naka Seidel, Bodo Richter, Roland Kratzer
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Patent number: 7439378Abstract: The present invention relates to a novel fulvene compound and a preparation method thereof, and more particularly to a fulvene compound having substituted groups in the 2- and 5-positions, prepared from an unsaturated ketone having a substituted group in the ?-position and a halogen atom in the ?-position, and a preparation method thereof. The present invention also relates to a metallocene catalyst having a substituted group in the ?-position carbon of the bridge of the cyclopentadienyl group only by reaction of a fulvene compound and an anion group including the cyclopentadienyl group, and a preparation method of a polyolefin copolymer using the same.Type: GrantFiled: March 15, 2007Date of Patent: October 21, 2008Assignee: LG Chem, Ltd.Inventors: Young-Whan Park, Si-Geun Lee, Sung-Don Hong, Kwang-Ho Song, Boong-Goon Jeong, Dae-Woo Nam, Bun-Yeol Lee, Choong-Hoon Lee, Hyo-Sun Lee
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Patent number: 7435370Abstract: A fiber and a process for obtaining same from a high-modulus polyethylene, extrudable in state-of-the-art equipment and in the absence of previous solubilization in any kind of organic solvent is described, the process comprising providing such a polyethylene, introducing it in a state-of-the-art extruder, extruding it according to a temperature pattern, obtaining an extrudate that is directed to a cooling bath to have its temperature reduced, then directing the extrudate to a first stretcher where it is stretched or drawn into a fiber of improved tenacity, at a first velocity v1, then heating the fiber at nearly 90° C. and then directing said fiber to a second stretcher to be drawn at a final velocity v2, wherein v1<v2, at a draw ratio of 2/1 until 65/1. The tenacity of the polyethylene fiber obtained by the said process attains at least 4 gf/den, which makes it useful to naval and offshore applications.Type: GrantFiled: October 1, 2004Date of Patent: October 14, 2008Assignee: Petroleo Brasileiro S.A. - PetrobrasInventors: Dellyo Ricardo dos Santos Alvares, Roberto Barcala Haag
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Patent number: 7414005Abstract: The present invention relates to a process for preparing a catalyst composition for olefin polymerization, which comprises preparing a catalyst solid in a first step by bringing A) at least one support, B) at least one organic compound having at least one functional group containing active hydrogen, C) at least one organometallic compound and D) at least one organic transition metal compound into contact with one another, then bringing this catalyst solid into contact with E) at least one organoaluminum compound in a second step and then using this mixture for the polymerization without further work-up. In addition, the invention relates to catalyst system for the polymerization of olefins which comprise such catalyst compositions, to the use of the catalyst compositions or the catalyst systems for the polymerization of olefins and to a process of the polymerization of olefins.Type: GrantFiled: November 3, 2003Date of Patent: August 19, 2008Assignee: Basell Polyolefine GmbHInventor: Roland Kratzer
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Patent number: 7414099Abstract: Embodiments of the present invention include a method of polymerizing olefins comprising contacting olefins with a catalyst composition made by the process of combining a hindered polyalicyclic alkyl catalyst precursor with a particulate inorganic oxide for a deposition time greater than 2 hours to form a catalyst composition. Embodiments of the present invention also include catalyst compositions comprising a hindered polyalicyclic alkyl catalyst precursor made by the process of combining the hindered polyalicyclic alkyl catalyst precursor with a particulate inorganic oxide for a deposition time greater than 2 hours to form the catalyst composition.Type: GrantFiled: October 13, 2005Date of Patent: August 19, 2008Assignee: Univation Technologies, LLCInventors: Maria A. Apecetche, John Moorhouse, Mark G. Goode, Ronald S. Eisinger, Kevin J. Cann
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Patent number: 7405176Abstract: The present invention provides a high-activity solid main catalyst component for ethylene polymerization, a process for preparing the same and a catalyst containing the same. The main catalyst component consists essentially of a magnesium compound, a titanium compound, an electron donor, an alkyl aluminum compound and fumed silica, and is prepared by a process comprising the step of: reacting powdered magnesium with an alkyl halide to form a magnesium compound in the nascent state; adding the magnesium compound in the nascent state together with a titanium compound and an alkyl aluminum compound into an electron donor to form a complex; adding and well dispersing a fumed silica thereto to form a homogeneous thick mixture; molding and drying the mixture to form main catalyst component particles with good particle morphology; and optionally, dispersing the main catalyst component particles into a hydrocarbon solvent or a mineral oil to form a slurry.Type: GrantFiled: April 28, 2004Date of Patent: July 29, 2008Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Chemical IndustryInventors: Mingwei Xiao, Shijiong Yu, Xiaofeng Ye
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Patent number: 7402638Abstract: The present invention relates to a propylene random copolymer which satisfies the following requirements [1] to [4], and to various useful molded products obtained by molding the propylene random copolymer: [1] the concentration (Pa, % by mole) of a skeletal constituent derived from propylene (a), and the concentration (Px, % by mole) of a skeletal constituent derived from at least one olefin selected from ethylene (b) and ?-olefins having 4 to 20 carbon atoms (c), each of which is contained in the propylene random copolymer, satisfy the following relational expressions (Eq-1) to (Eq-3): 85?Pa<100??(Eq-1) 0<Px?15??(Eq-2) Pa+Px=100;??(Eq-3) [2] the concentration (Pa, % by mole) of the skeletal constituent derived from propylene (a) contained in the propylene random copolymer, and the melting point (Tm) measured with a differential scanning calorimeter satisfy the following relational expression (Eq-4): 135?4×(100?Pa)<Tm<165?4×(100?Pa);??(Eq-4) [3] the total amount of 2,1-bonded and 1,3-bonType: GrantFiled: August 20, 2004Date of Patent: July 22, 2008Assignee: Mitsui Chemicals, Inc.Inventors: Shuji Matsumura, Keita Itakura, Satoshi Hashizume, Akihiro Inukai, Kouichirou Yamamoto, Ayako Kadosaka, Yoshio Sasaki, Masashi Higuchi, Hiroshi Nishikawa
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Patent number: 7399895Abstract: A catalyst composition for the preparation of oligomeric and/or polymer derivatives of olefin monomers, said composition comprising a Group 6 metal amide complex, a Group 1, 2, 12, 13, or 14 metal hydrocarbyl composition or compound, and a solid support comprising aluminum phosphate.Type: GrantFiled: February 24, 2005Date of Patent: July 15, 2008Assignee: Union Carbide Chemicals & PlasticsInventors: John R. Briggs, David W. Butler, Timothy T. Wenzel, William C. Brooks, Teresa L. Fortin
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Patent number: 7385015Abstract: This invention relates to a process to prepare a trialkylaluminum treated support comprising: 1) combining a support with first trialkylaluminum compound(s), where the alkyl groups have at least 2 carbon atoms; then 2) calcining the combination of the support and the trialkylaluminum compound(s); then 3) combining the calcined support with second trialkylaluminum compound(s), where the alkyl groups have at least 2 carbon atoms; where the first and second trialkylaluminum compound(s) may be the same or different. This invention further relates to catalyst systems comprising catalyst compounds and such supports, as well as processes to polymerize unsaturated monomers using the supports in combination with catalyst compounds.Type: GrantFiled: September 6, 2005Date of Patent: June 10, 2008Assignee: Exxonmobil Chemical Patents Inc.Inventor: Matthew W. Holtcamp
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Patent number: 7368411Abstract: Supported stereospecific catalysts and processes for the stereotactic propagation of a polymer chain derived from ethylenically unsaturated monomers which contain three or more carbon atoms or which are substituted vinyl compounds, specifically alpha olefins, particularly the polymerization of propylene to produce syndiotactic or isotactic polypropylene. The supported metallocene catalyst comprises a stereospecific metallocene catalyst and a co-catalyst component comprising at least one of an alkyl alumoxane and an alkylaluminum compound. Both the metallocene catalyst and the co-catalyst are supported on a particulate silica support comprising silica particles having an average particle size of 5-40 microns and an average effective pore size of 50-200 angstroms. The silica support further has a differential pore size distribution of a pore volume of at least 0.01 cm3/g. within a range having a maximum pore width of no more than 300 angstroms.Type: GrantFiled: January 31, 2007Date of Patent: May 6, 2008Assignee: Fina Technology, IncInventors: Margarito Lopez, Edwar Shamshoum, Donald Gordon Campbell, Jr.
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Patent number: 7345119Abstract: An olefin polymerization solid catalyst including a reaction product of a transition metal compound and an organoaluminum compound carried on a support having silica treated with an organoaluminum-oxy compound.Type: GrantFiled: November 30, 2004Date of Patent: March 18, 2008Assignee: Maruzen Petrochemical Company, LimitedInventors: Toshifumi Takemori, Minoru Iijima, Yoshihisa Hayashida, Masashi Iida
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Patent number: 7332455Abstract: The present invention relates to a catalyst component and a catalyst for olefin polymerization. The catalyst component utilizes magnesium halide and silica as composite support, and the particle morphology thereof can be improved by regulating the ratio of magnesium halide to silica. Further, the purpose of stabilizing the rate of catalytic polymerization reaction and improving the particle morphology of polymer so as to meet the requirements on catalyst performance of various polymerization processes can be achieved through the combination of the supports of the catalyst. In the meantime, when used in the polymerization of propylene, the catalyst of the present invention exhibits a relatively high polymerization activity and high stereospecificity.Type: GrantFiled: September 16, 2004Date of Patent: February 19, 2008Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical CorporationInventors: Chen Wei, Yuexiang Liu, Xianzhi Xia, Wenbo Song, Hongbin Du, Zifang Guo, Yang Tan, Zhaowen Ma, Weimin Ji, Zhichao Yang, Xiaodong Wang, Lei Guo
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Patent number: 7326757Abstract: Disclosed are catalyst systems and methods of making the catalyst systems for the polymerization of an olefin containing a solid titanium catalyst component containing an inorganic titanium compound, a magnesium alcohol adduct made from an inorganic magnesium compound and an alcohol, and a porous support having at least one of a certain specific surface area, a certain pore volume, and a certain median particle size. The catalyst system may further contain an organoaluminum compound and optionally an organosilicon compound. Also disclosed are methods of making polyolefins.Type: GrantFiled: July 20, 2005Date of Patent: February 5, 2008Assignee: BASF Catalysts LLCInventors: Zhidong Zhu, Main Chang
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Publication number: 20070282085Abstract: The use of high activity “Single Site” polymerization catalysts often causes the fouling of polymerization reactors. The problem is particularly acute with gas phase polymerizations. While not wishing to be bound by theory it is believed that the fouling is initiated by the buildup of static charges in the reactor. The use of anti-static agents mitigates this problem, but typical antistatic agents contain polar species, which can deactivate the polymerization catalyst. We have now discovered that the use of a porous metal oxide support allows large levels of a selected antistatic agent to be used in a manner that reduces static/fouling problems in highly active polymerization catalysts.Type: ApplicationFiled: May 7, 2007Publication date: December 6, 2007Inventors: Ian McKay, Dusan Jeremic, Paul Mesquita, Grant Berent Jacobsen, Sergio Mastroianni
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Patent number: 7300902Abstract: The present invention provides an ethylene polymerization catalyst. The present invention also provides a process for preparing the ethylene polymerization catalyst, comprising reacting powdered magnesium with an alkyl halide of formula RX in the presence of an ether solvent to form a magnesium compound having a structure represented by the formula (RMgX)p(MgX2)q, in which R is an alkyl group having from 3 to 12 carbon atoms, X is halogen, and molar ratio of q to p is in the range of from larger than 0 to 1, impregnating the magnesium compound onto silica carrier, reacting the silica loading the magnesium compound with an alkyl halide of formula R1X, a titatium compound and an alkyl aluminum compound to form a main catalyst component, contacting the main catalyst component with a cocatalyst component to form catalyst for ethylene polymerization. The present invention also relates to the use of the catalyst in the polymerization of ethylene.Type: GrantFiled: October 30, 2003Date of Patent: November 27, 2007Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Chemical IndustryInventors: Mingwei Xiao, Shijiong Yu, Xiaofeng Ye, Zixiao Chai
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Patent number: 7294599Abstract: This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, typically using a supported catalyst composition. In one aspect, this invention encompasses precontacting a metallocene with an olefin or alkyne monomer and an organoaluminum compound, prior to contacting this mixture with the acidic activator-support.Type: GrantFiled: June 25, 2004Date of Patent: November 13, 2007Assignee: Chevron Phillips Chemical Co.Inventors: Michael D. Jensen, Gil R. Hawley, Max P. McDaniel, Tony Crain, Elizabeth A. Benham, Joel L. Martin, Qing Yang
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Patent number: 7294600Abstract: The present invention relates to a supported metallocene catalyst used for preparing polyolefin whose physical properties and molecular weight distribution can be easily controlled, a method for preparing the same, and a method for preparing polyolefin using the same, more particularly to a support metallocene catalyst wherein at least two kinds of metallocenic transition compounds are supported on a metal oxide such as silica, a method for preparing the same, and a method for preparing polyolefin using the same.Type: GrantFiled: March 24, 2004Date of Patent: November 13, 2007Assignee: LG Chem, Ltd.Inventors: Ki-Soo Lee, Hyo-Sun Lee, Eun-Jung Lee, Sang-Woo Lee, Choong-Hoon Lee
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Publication number: 20070255024Abstract: Supported catalyst systems and methods of forming polyolefins are generally described herein. The polymerization methods generally include introducing an inorganic support material to a reaction zone, wherein the inorganic support material includes a bonding sequence selected from Si—O—Al—F, F—Si—O—Al, F—Si—O—Al—F and combinations thereof, introducing a transition metal compound to the reaction zone and contacting the transition metal compound with the inorganic support material for in situ activation/heterogenization of the transition metal compound to form a catalyst system. The method further includes introducing an olefin monomer to the reaction zone and contacting the catalyst system with the olefin monomer to form a polyolefin.Type: ApplicationFiled: June 21, 2006Publication date: November 1, 2007Applicant: Fina Technology, Inc.Inventors: Abbas Razavi, Vladimir P. Marin, Margarito Lopez
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Patent number: 7268195Abstract: This invention relates to a catalyst system comprising a catalyst and a support comprising a non-layered inorganic porous crystalline phase material, wherein the support comprises a hexagonal arrangement of uniformly-sized pores having an average pore diameter greater than or equal to about 13 ?, an X-ray diffraction pattern having a calculated d100 value of greater than or equal to about 18 ?, an adsorption capacity of greater than or equal to about 15 grams benzene per 100 grams support at 50 torr and at 25° C., and a pore wall thickness of less then or equal to about 25 ?.Type: GrantFiled: October 2, 2006Date of Patent: September 11, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Zerong Lin, David C. Calabro, James C. Vartuli
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Patent number: 7247686Abstract: A solid cocatalyst for olefin polymerization in which an ion-containing compound comprising a cation expressed by [R4M]+, wherein the group R are each individually selected from the group consisting of hydrogen atom and a substituted or non-substituted hydrocarbon group having from 1 to 30 carbon atoms with the exception of an aryl group; two or more groups R may form a ring by bonding with one another; at least one of the groups R is a hydrocarbon group having from 1 to 30 carbon atoms with the exception of an aryl group; and M represents nitrogen or sulfur, and a non-coordinating anion expressed by [A] said ion-containing compound is chemically bonded to a fine particulate carrier is used.Type: GrantFiled: October 17, 2002Date of Patent: July 24, 2007Assignees: Basell Polyolefine GmbH, SunAllomer Ltd.Inventors: Satoru Ishigaki, Shinji Hinokuma
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Patent number: 7232869Abstract: A process for the preparation of a catalyst system includes the steps of combining a Lewis base, an organic compound having at least one functional group containing active hydrogen, and an organometallic component with a particulate support material to provide an intermediate composition, and then combining the intermediate composition with one or more metallocene compound. The catalyst system is advantageously used for olefin polymerization.Type: GrantFiled: May 17, 2005Date of Patent: June 19, 2007Assignee: Novolen Technology Holdings, C.V.Inventors: Thorsten Sell, Joerg Schottek, Nicola Stefanie Paczkowski, Andreas Winter
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Patent number: 7220695Abstract: This invention relates to supported activators comprising the product of the combination of an ion-exchange layered silicate, an organoaluminum compound, and a heterocyclic compound, which may be substituted or unsubstituted. This invention further relates to catalyst systems comprising catalyst compounds and such activators, as well as processes to polymerize unsaturated monomers using the supported activators. For the purposes of this patent specification and the claims thereto, the term “activator” is used interchangeably with the term “co-catalyst”, the term “catalyst” refers to a metal compound that when combined with an activator polymerizes olefins, and the term “catalyst system” refers to the combination of a catalyst and an activator with or without a support. The terms “support” or “carrier”, for purposes of this patent specification, are used interchangeably and are any ion-exchange layered silicates.Type: GrantFiled: January 7, 2004Date of Patent: May 22, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Gary L. Casty, Smita Kacker, Jack W. Johnson, Murielle V. Scott, Steven L. Hegwood, Robert R. Simpson, Robert P. Reynolds
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Patent number: 7211535Abstract: The present invention provides a novel process for preparing a catalyst useful in gas phase polymerization of olefins wherein the physical properties of the polymer and the productivity of the catalyst can be altered depending on the sequence of addition of the catalyst components. The catalyst consists of compounds of Ti, Mg, Al and optionally an electron donor supported on an amorphous support.Type: GrantFiled: October 29, 2004Date of Patent: May 1, 2007Assignees: Nova Chemicals Corporation, Ineos Europe LimitedInventors: Mark Kelly, Shivendra Kumar Goyal, Victoria Ker, Perry Montyn de Wit, Brian Stephen Kimberley, Peter Phung Ming Hoang
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Patent number: 7211536Abstract: Supported stereospecific catalysts and processes for the stereotactic propagation of a polymer chain derived from ethylenically unsaturated monomers which contain three or more carbon atoms or which are substituted vinyl compounds, specifically alpha olefins, particularly the polymerization of propylene to produce syndiotactic or isotactic polypropylene. The supported metallocene catalyst comprises a stereospecific metallocene catalyst and a co-catalyst component comprising at least one of an alkyl alumoxane and an alkylaluminum compound. Both the metallocene catalyst and the co-catalyst are supported on a particulate silica support comprising silica particles having an average particle size of 5–40 microns and an average effective pore size of 50–200 angstroms. The silica support further has a differential pore size distribution of a pore volume of at least 0.01 cm3/g. within a range having a maximum pore width of no more than 300 angstroms.Type: GrantFiled: October 22, 2004Date of Patent: May 1, 2007Assignee: Fina Technology, Inc.Inventors: Margarito Lopez, Edwar Shamshoum, Donald Gordon Campbell, Jr.
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Patent number: 7202190Abstract: A supported catalyst system for polymerizing olefins comprising a) a support, b) a Lewis base of the formula M3R6R7R8 ??(I) wherein M3 is an element of main group III of the Periodic Table of the Elements, c) an organometallic compound of the formula II as cocatalyst, M3R6R7R8 ??(II) wherein M3 is an element of main group III of the Periodic Table of the Elements, d) at least one metallocene, e) an organometallic compound of the formula [M4R9j]kIII where M4 is an element of main groups I, II or III of the Periodic Table of the Elements, where the organometallic compound of the formula II is covalently bound to the support.Type: GrantFiled: December 10, 1998Date of Patent: April 10, 2007Assignee: Targor GmbHInventors: Hans Bohnen, Cornelia Fritze
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Patent number: 7199073Abstract: Catalyst compositions comprising a first metallocene compound, a second metallocene compound, a third metallocene compound, a chemically-treated solid oxide, and an organoaluminum compound are provided. Methods for preparing and using the catalyst and polyolefins are also provided. The compositions and methods disclosed herein provide ethylene polymers having decreased haze while minimizing impact on other properties, such as dart impact.Type: GrantFiled: November 10, 2004Date of Patent: April 3, 2007Assignee: Chevron Phillips Chemical Company, LPInventors: Joel L. Martin, Elizabeth A. Benham, Mark E. Kertok, Michael D. Jensen, Max P. McDaniel, Gil R. Hawley, Qing Yang, Matthew G. Thorn, Ashish M. Sukhadia
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Patent number: 7169864Abstract: A process for the preparation of a catalyst system includes the steps of combining a support material with a first composition which includes at least one aluminoxane in a first solvent to provide an aluminoxane loaded support; and, contacting the aluminoxane loaded support with a second composition which includes at least one metallocene compound, a second solvent, and a cocatalyst, wherein the cocatalyst includes a second portion of the at least one aluminoxane alone or in combination with an ionic compound and/or a Lewis acid.Type: GrantFiled: December 1, 2004Date of Patent: January 30, 2007Assignee: Novolen Technology Holdings, C.V.Inventors: Nicola S. Paczkowski, Andreas Winter, Franz Langhauser
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Patent number: 7132382Abstract: A film comprising a polyethylene composition, the polyethylene composition in one embodiment comprising a high molecular weight component having a weight average molecular weight of greater than 50,000 amu and a low molecular weight component having a weight average molecular weight of less than 50,000 amu; the polyethylene composition possessing a density of between 0.940 and 0.970 g/cm3, and an I21 value of less than 20 dg/min; characterized in that the polyethylene composition extrudes at an advantageously high specific throughput at an advantageously low melt temperature, and wherein the film has a gel count of less than 100.Type: GrantFiled: January 12, 2005Date of Patent: November 7, 2006Assignee: Univation Technologies, LLCInventors: Laughlin G. McCullough, Agapios K. Agapiou
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Patent number: 7129303Abstract: The present invention provides a method for producing homo- and co-polymers of ethylene, or more particularly a method for producing homo- and copolymers of ethylene in the presence of (a) a solid titanium catalyst produced by preparing a magnesium solution by contact-reacting a halogenated magnesium compound with an alcohol; reacting thereto an ester compound having at least one hydroxyl group and a silicon compound having at least one alkoxy group; and adding a mixture of a titanium compound and a silicon compound; (b) organometallic compounds of Group II or III of the Periodic Table; and (c) an alkoxysilane compound and a haloalkne compound. The catalyst for homo- and co-polymerization of ethylene, produced according to the present invention, exhibits a high activity and the polymers produced by the method of the present invention using said catalyst have the advantages of exhibiting a high bulk density and a narrow molecular weight distribution.Type: GrantFiled: November 9, 2001Date of Patent: October 31, 2006Assignee: Samsung Atofina Co., Ltd.Inventors: Chun-Byung Yang, Won-Young Kim, Weon Lee
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Patent number: 7122491Abstract: A method of increasing the lifetime of a hydro-oxidation catalyst comprising, preferably, gold, silver, or mixtures thereof, and optionally one or more promoters, on a titanium-containing support, such as a titanosilicate or titanium dispersed on silica. The method of the invention involves contacting the catalyst support with a hydroxy-functionalized organosilicon compound, a carboxy-functionalized organosilicon compound, or a mixture of hydroxy- and carboxy-functionalized organosilicon compounds, such as, sodium methyl siliconate or (2-carboxypropyl)tetramethyldisiloxane. The contacting is preferably conducted during deposition of the catalytic metal(s) and optional promoters(s) onto the support. A catalyst composition and hydro-oxidation process utilizing the silicon-treated catalyst support are also claimed.Type: GrantFiled: July 31, 2002Date of Patent: October 17, 2006Assignee: Dow Global Technologies Inc.Inventors: David G. Barton, Robert G. Bowman, George E. Hartwell, Howard W. Clark, Alexander Kuperman
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Patent number: 7084217Abstract: An improved supported Ziegler-Natta catalyst especially useful for olefin polymerisation, the catalyst including a carrier, an organomagnesium compound, a borate compound, and one transition metal compound.Type: GrantFiled: January 30, 2002Date of Patent: August 1, 2006Assignee: B.P. Chemicals Ltd.Inventor: Stephen John Dossett
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Patent number: 7071138Abstract: A solid catalyst component for olefin polymerization in which the molar ratio of residual alkoxy groups to supported titanium is 0.60 or less is obtained by reacting the following compound (a1) with the following compound (b1) at a hydroxyl group/magnesium molar ratio of 1.0 or more, reacting the reaction mixture with the following compound (c1) at a halogen/magnesium molar ratio of 0.20 or more, reacting the resultant reaction mixture with the following compounds (d1) and (e) at a temperature of 120° C. or higher but 150° C.Type: GrantFiled: November 1, 2002Date of Patent: July 4, 2006Assignee: Idemitsu Petrochemical Co., LTDInventors: Shojiro Tanase, Takanori Sadashima
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Patent number: 7060766Abstract: Processes of forming a supported activated catalyst composition and method of polymerization are disclosed, the process of forming the composition including combining a halogenated aromatic aluminum activator compound with a fluorinated support and a catalyst to form a supported activated catalyst composition. Also disclosed is a supported activated catalyst composition, comprising the reaction product of a fluorinated support, a perfluorophenyl aluminum activator and in one embodiment a metallocene catalyst. In one embodiment, the halogenated aromatic aluminum activator is represented by the formula RnAl(ArHal)3-n, wherein ArHal is a halogenated aryl group, R is a monoanionic ligand, and n is 1 or 2.Type: GrantFiled: January 20, 2005Date of Patent: June 13, 2006Inventors: Laughlin G. McCullough, Matthew W. Holtcamp
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Patent number: 7026494Abstract: Various catalyst compositions including the contact product of at least one ansa-metallocene compound, at least one organoaluminum compound, and at least one activator-support are disclosed. Processes for forming such compositions and for forming polyolefins with such compositions are also disclosed. Metallocene compounds are also presented.Type: GrantFiled: January 10, 2005Date of Patent: April 11, 2006Assignee: Chevron Phillips Chemical Company, LPInventors: Qing Yang, Michael D. Jensen, Matthew G. Thorn, Max P. McDaniel, Joel L. Martin, Tony R. Crain
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Patent number: 7022795Abstract: Propylene homopolymers, wherein, in their separation according to tacticity by first dissolving the polymers in boiling xylene, then cooling the solution to 25° C. at a cooling rate of 10° C./h and then, with ascending temperature, separating the propylene homopolymers into fractions of different tacticity, either one or more of the conditions that i) the fraction of propylene homopolymers which remains undissolved on heating the cooled propylene homopolymer solution to 112° C. is greater than 20% by weight or ii) the fraction of propylene homopolymers which remains undissolved on heating the cooled propylene homopolymer solution to 117° C. is greater than 8% by weight or iii) the fraction of propylene homopolymers which remains undissolved on heating the cooled propylene homopolymer solution to 122° C. is greater than 1% by weight, are satisfied.Type: GrantFiled: March 13, 1998Date of Patent: April 4, 2006Assignee: Novolen Technology Holdings, C.V.Inventors: Stephan Hüffer, Joachim Rösch, Stefan Seelert, Franz Langhauser, Dieter Lilge, Roland Hingmann, Günther Schweier
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Patent number: 7015169Abstract: The present invention relates to catalyst systems of the Ziegler-Natta type, to a process for preparing them, to their use for the polymerization of olefins and to ethylene copolymers which can be prepared using this catalyst system.Type: GrantFiled: December 10, 2002Date of Patent: March 21, 2006Assignee: BASF AktiengesellschaftInventors: Klaus Föttinger, Martin Schneider, Rainer Karer
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Patent number: 7009012Abstract: The present invention provides a supported catalyst comprising (A) a polymer (B) a supporter, (C) a transition metal compound, and optionally (D) (a) a compound which can form an ionic complex by the reaction with the transition metal compound or (b) a specific oxygen-containing compound, and (E) an alkylaluminum compound. The supported catalyst according to present invention, which has a high activity, can be used for preparing a styrenic polymer with a high syndiotacticity. The supported catalyst can be used in combination with a cocatalyst, preferably an alkyl aluminoxane.Type: GrantFiled: December 18, 2000Date of Patent: March 7, 2006Assignee: Samsung Atofina Co. Ltd.Inventors: Sung Cheol Yoon, Xuequan Zhang, Jae Gon Lim, Hyun Joon Kim, Young Sub Lee
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Patent number: 6960549Abstract: The present invention relates to the use of at least one acid and at least one base and/or at least one reductant and at least one oxidant that when used with a polymerization catalyst in a polymerization process results in the controllable generation of a catalyst inhibitor that renders the polymerization catalyst substantially or completely inactive.Type: GrantFiled: August 17, 2001Date of Patent: November 1, 2005Assignee: Univation Technologies, LLCInventors: Timothy T. Wenzel, Dick A. Nagaki, Simon Mawson, David James Schreck, Thomas H. Peterson
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Patent number: 6958306Abstract: A catalyst composition and method for preparing a supported catalyst system for olefin polymerization is provided. In one aspect, the catalyst composition includes a reaction product of a dialuminoxane and a halogen substituted aryl borane, wherein the reaction takes place on a support and at conditions sufficient to exchange one or more ligands on the dialuminoxane for one or more ligands on the halogen substituted aryl borane while on the support. In one embodiment, the method for preparing the supported catalyst system includes combining a dialuminoxane with a support to form a treated catalyst support, and combining a halogen substituted aryl borane with the treated catalyst support at conditions sufficient to exchange one or more ligands on the dialuminoxane for one or more ligands on the halogen substituted aryl borane while on the support to form a supported activator. The method further includes reacting one or more polymerization catalysts with the supported activator.Type: GrantFiled: August 28, 2003Date of Patent: October 25, 2005Assignee: Univation Technologies, LLCInventor: Matthew W. Holtcamp
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Patent number: 6958375Abstract: The present invention is directed to a novel one-step method for forming a supported catalyst complex of high activity by substantially simultaneously contacting a bidentate or tridentate ligand forming compound, a transition metal compound and a chromium immobilized Lewis acid support-agglomerate. The catalyst can be formed prior to polymerization of olefins or within the polymerization reaction zone.Type: GrantFiled: April 10, 2002Date of Patent: October 25, 2005Assignee: W.R. Grace & Co.-Conn.Inventors: Keng-Yu Shih, Dean Alexander Denton, Rimantas Glemza
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Patent number: 6953829Abstract: A catalyst system comprising at least one metallocene, at least one cocatalyst, at least one support material and, if desired, further organometallic compounds is described. The catalyst system can advantageously be used for the polymerization of olefins and displays a high catalyst activity and gives a good polymer morphology without it being necessary to use aluminoxanes such as methylaluminoxane (MAO), which usually has to be used in high excess, as cocatalyst.Type: GrantFiled: December 13, 2000Date of Patent: October 11, 2005Assignee: Basell Polyolefine GmbHInventors: Roland Kratzer, Cornelia Fritze, Jörg Schottek
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Coordination catalyst systems employing chromium support-agglomerate and method of their preparation
Patent number: 6946420Abstract: The present invention is directed to a coordinating catalyst system comprising at least one pre-catalyst selected from late transition metal bidentate or tridentate ligand containing compounds, at least one support-agglomerate having chromium immobilized thereto (e.g., spray dried silica/clay agglomerate), and optionally at least one organometallic compound in controlled amounts, and methods for preparing the same. The resulting catalyst system exhibits enhanced activity for polymerizing olefins and yields polymer products having very good morphology.Type: GrantFiled: April 10, 2002Date of Patent: September 20, 2005Assignee: W. R. Grace & Co.-ConnInventors: Keng-Yu Shih, Dean Alexander Denton, Rimantas Glemza -
Patent number: 6943134Abstract: A process of producing a bimodal polyolefin composition is described, which includes in one embodiment contacting monomers with a supported bimetallic catalyst composition for a time sufficient to form a bimodal polyolefin composition that includes a high molecular weight polyolefin component and a low molecular weight polyolefin component; wherein the supported bimetallic catalyst includes a first catalyst component that is preferably non-metallocene, and a second catalyst component that includes a metallocene catalyst compound having at least one fluoride or fluorine containing leaving group, wherein the bimetallic catalyst is supported by an enhanced silica, dehydrated at a temperature of 800° C. or more in one embodiment.Type: GrantFiled: September 20, 2004Date of Patent: September 13, 2005Assignee: Univation Technologies, LLCInventors: Chi-I Kuo, G. McCullough Laughlin, Pradeep Pandurang Shirodkar, Fred David Ehrman, Porter Shannon, Robert Lynn Santana, Steven K. Ackerman, Daniel Gerard O'Neil