Transition Metal Is Group Vb, Vib Or Viii Metal Patents (Class 526/169)
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Patent number: 7423101Abstract: The present invention is directed toward Group 4, 5, 6, 7, 8, 9, 10 or 11 transition metal compounds containing neutral, mono- or di-anionic tridentate nitrogen/oxygen based ligands that are useful, with or without activators, to polymerize olefins, particularly ?-olefins, or other unsaturated monomers. For the purposes of this disclosure, “?-olefins” includes ethylene. The present invention is also directed toward Group 4, 5, 6, 7, 8, 9, 10 or 11 transition metal compounds containing neutral, bidentate nitrogen/oxygen based ligands that are useful to polymerize olefins, particularly ?-olefins, or other unsaturated monomers.Type: GrantFiled: November 20, 2007Date of Patent: September 9, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Gregory A. Solan, Christopher J. Davies
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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: 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: 7384886Abstract: A method of making a catalyst for use in oligomerizing an olefin comprising a chromium-containing compound, a pyrrole-containing compound, a metal alkyl, a halide-containing compound, and optionally a solvent, the method comprising contacting a composition comprising the chromium-containing compound and a composition comprising the metal alkyl, wherein the composition comprising the chromium-containing compound is added to the composition comprising the metal alkyl.Type: GrantFiled: February 20, 2004Date of Patent: June 10, 2008Assignee: Chevron Phillips Chemical Company LPInventors: Ronald D. Knudsen, Bruce E. Kreischer, Ronald G. Abbott, Steven D. Bridges, Eduardo J. Baralt
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Patent number: 7358209Abstract: A transition metal complex having the following Formula (A): wherein the monovalent groups R1 and R2 are —Ra, —ORb, —NRcRd, and —NHRe: the monovalent groups Ra, Rb, Rc, Rd and Re, and the divalent group R3 are (i) aliphatic hydrocarbon, (ii) alicyclic hydrocarbon, (iii) aromatic hydrocarbon, (iv) alkyl substituted aromatic hydrocarbon (v) heterocyclic groups and (vi) heterosubstituted derivatives of said groups (i) to (v); M is a Group (3) to (11) or lanthanide metal; E is phosphorus or arsenic; X is an anionic group, L is a neutral donor group; n is (1) or (2), y and z are independently zero or integers, such that the number of X and L groups satisfy the valency and oxidation state of the metal M. n is preferably (2) and the two resulting R1 groups are preferably linked.Type: GrantFiled: August 31, 2006Date of Patent: April 15, 2008Assignee: Ineos Europe LimitedInventors: Vernon Charles Gibson, Grant Berent Jacobsen, David John Jones, Richard James Long
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Patent number: 7317057Abstract: The present invention is directed toward Group 4, 5, 6, 7, 8, 9, 10 or 11 transition metal compounds containing neutral, mono- or di-anionic tridentate nitrogen/oxygen based ligands that are useful, with or without activators, to polymerize olefins, particularly ?-olefins, or other unsaturated monomers. For the purposes of this disclosure, “?-olefins” includes ethylene. The present invention is also directed toward Group 4, 5, 6, 7, 8, 9, 10 or 11 transition metal compounds containing neutral, bidentate nitrogen/oxygen based ligands that are useful to polymerize olefins, particularly ?-olefins, or other unsaturated monomers.Type: GrantFiled: January 25, 2005Date of Patent: January 8, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Gregory A. Solan, Christopher J. Davies
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Patent number: 7279537Abstract: There are provided a transition metal complex of formula (1): wherein M represents an element of Group 6 of Periodic Table of Elements, A and A? are the same or different, and represent a substituted or unsubstituted C1-10 alkylene group or the like, Y represents a substituted or unsubstituted C1-10 alkyl group, or the like, X1 and X2 are the same or different, and represent a hydrogen atom, a halogen atom, a substituted or unsubstituted C1-10 alkyl group, or an amino group disubstituted with C1-20 hydrocarbon, and n1 is an integer of 0 to 3, an olefin polymerization catalyst obtained by combining a transition metal complex with an organic aluminum or aluminoxane, a polymerization catalyst further containing a boron compound, and a process for producing olefin polymer using the polymerization catalyst.Type: GrantFiled: October 15, 2003Date of Patent: October 9, 2007Assignee: Sumitomo Chemical Company, LimitedInventors: Yuka Otomaru, Hidenori Hanaoka, Takayuki Higashii
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Patent number: 7273912Abstract: Supported catalyst systems are provided comprising (a) a transition metal compound, (b) a non aluminoxane activator comprising, and (c) a support material comprising an inorganic metal oxide, inorganic metal halide or polymeric material or mixtures thereof characterised in that the support material has been pretreated with an SO4 containing compound. The preferred transition metal compounds are metallocenes and the SO4 containing compound is typically sulphuric acid. The supported catalyst systems show improved activity and also may reduce fouling in gas phase fluidised bed processes.Type: GrantFiled: December 3, 2003Date of Patent: September 25, 2007Assignee: Innovene Europe LimitedInventors: Grant Berent Jacobsen, Brian Stephen Kimberley, Claudine Viviane Lalanne-Magne, Sergio Mastroianni
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Patent number: 7259216Abstract: A process for preparing highly branched ethylene polymers comprises polymerizing ethylene over a catalyst system comprising a compound of the formula Ia or Ib and an activator, where the process is carried out at from 40 to 110° C. and a pressure of from 10 to 100 bar.Type: GrantFiled: September 28, 2001Date of Patent: August 21, 2007Assignee: Basell Polyolefine GmbHInventors: Sharam Mihan, Dieter Lilge, Jan Göhre
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Patent number: 7208441Abstract: A copolymer of ethylene and a higher alpha olefin, preferably 1-hexene, can be produced using an activated chromium containing catalyst system and a cocatalyst selected from the group consisting of trialkylboron, trialkylsiloxyalutninum, and a combination of trialkylboron and thalkylaluminum compounds. The polymerization process must be carefully controlled to produce a copolymer resin having an exceptionally broad molecular weight distribution, extremely high PENT ESCR values, and a natural branch profile that impacts branching preferably into the high molecular weight portion of the polymer. The resulting copolymer resin is especially useful in high stiffness pipe applications.Type: GrantFiled: November 23, 2004Date of Patent: April 24, 2007Assignee: Chevron Philips Chemical Company LPInventors: Elizabeth A. Benham, Paul J. DesLauriers, Max P. McDaniel, Al R. Wolfe
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Patent number: 7189791Abstract: This invention relates to a transition metal catalyst compound represented by the formula: LMX2 or (LMX2)2 wherein each M is independently a Group 7 to 11 metal, preferably a Group 7, 8, 9, or 10 metal; each L is, independently, a tridentate or tetradentate neutrally charged ligand that is bonded to M by three or four nitrogen atoms, (where at least one of the nitrogen atoms is a central nitrogen atom and at least two of the nitrogen atoms are terminal nitrogen atoms), and at least two terminal nitrogen atoms are substituted with one C3–C50 hydrocarbyl and one hydrogen atom or two hydrocarbyls wherein at least one hydrocarbyl is a C3–C50 hydrocarbyl, and the central nitrogen atom is bonded to three different carbon atoms or two different carbon atoms and one hydrogen atom; X is independently a monoanionic ligand, or two X may join together to form a bidentate dianionic ligand.Type: GrantFiled: May 27, 2004Date of Patent: March 13, 2007Assignee: ExxonMobil Chemical Patents Inc.Inventors: Gregory Adam Solan, Christopher James Davies
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Patent number: 7144839Abstract: A transition metal complex having the following Formula (A): wherein the monovalent groups R1 and R2 are —Ra, —ORb, —NRcRd, and —NHRe; the monovalent groups Ra, Rb, Rc, Rd and Re, and the divalent group R3 are (i) aliphatic hydrocarbon, (ii) alicyclic hydrocarbon, (iii) aromatic hydrocarbon, (iv) alkyl substituted aromatic hydrocarbon (v) heterocyclic groups and (vi) heterosubstituted derivatives of said groups (i) to (v); M is a Group (3) to (11) or lanthanide metal; E is phosphorus or arsenic; X is an anionic group, L is a neutral donor group; n is (1) or (2), y and z are independently zero or integers, such that the number of X and L groups satisfy the valency and oxidation state of the metal M. n is preferably (2) and the two resulting R1 groups are preferably linked.Type: GrantFiled: March 18, 2004Date of Patent: December 5, 2006Assignee: Innovene Europe LimitedInventors: Vernon Charles Gibson, Grant Berent Jacobsen, David John Jones, Richard James Long
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Patent number: 7144964Abstract: A high-temperature solution process for polymerizing ethylene is disclosed. The polymerization is performed in the presence of a preassembled bimetallic Ziegler-Natta catalyst and an aluminum compound. Molecular modeling calculations predict that the bimetallic Ziegler-Natta catalyst will have good activity and improved stability versus traditional Ziegler-Natta catalysts. This makes the catalyst especially suitable for solution polymerization processes, which require a thermally robust catalyst.Type: GrantFiled: August 19, 2004Date of Patent: December 5, 2006Assignee: Equistar Chemicals, L.P.Inventors: Sandor Nagy, Mark P. Mack
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Patent number: 7129305Abstract: A family of novel hetrocyclic-amide type catalyst precursors useful for the polymerization of olefins, such as ethylene, higher alpha-olefins, dienes, and mixtures thereof.Type: GrantFiled: September 23, 2004Date of Patent: October 31, 2006Assignee: Univation Technologies, LLCInventor: Rex Eugene Murray
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Patent number: 7041763Abstract: Ring-opening metathesis polymerization (ROMP) of a photochromic 1,2-bis-(3-thienyl)-cyclopentene monomer generated a series of novel polymers. All polymers exhibit reversible light-activated interconversion between their colorless-open and their colored-closed forms.Type: GrantFiled: July 13, 2001Date of Patent: May 9, 2006Assignee: Simon Fraser UniversityInventors: Neil R. Branda, Andrew J. Myles
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Patent number: 7037990Abstract: A method is provided for the polymerization of olefins substituted with a functional group using a transition metal catalyst that, by virtue of one or more stabilizing groups incorporated within the catalyst structure, “fixes” the stereoconfiguration of each olefinic monomer relative to the transition metal complex during each successive reaction in the polymerization process. The invention substantially reduces the likelihood of olefin rearrangement at the active site of the catalyst during polymerization. In one particular embodiment, the functional group is a polar, electron-donating group and the stabilizing group is a Lewis acid substituent; examples of polymers that can be prepared with such a system include poly(vinyl acetate), poly(vinyl alcohol), and poly(vinyl ethers). Novel complexes and catalyst systems useful in the polymerization method are also provided.Type: GrantFiled: January 3, 2003Date of Patent: May 2, 2006Assignee: Nippon Synthetic Chemical CompanyInventors: Christopher D. Tagge, Robert B. Wilson, Jr., Hiroyuki Ono
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Patent number: 7026415Abstract: Catalyst systems and methods for olefin polymerization are disclosed. The polymerizations are performed in the presence of a clathrochelate which comprises a transition metal ion and an encapsulating macropolycyclic ligand. At least one of the capping atoms of the macropolycyclic ligand is a Group 3–10 transition metal or a Group 13 atom. When a capping atom is a Group 3–10 transition metal, the clathrochelate can be used with an activator to polymerize olefins. When a capping atom is a Group 13 atom, the clathrachelate can be used as an activator for an olefin polumerization. Clathrochelates allow polyolefin markers to fine tune catalyst reactivity and polyolefin properties.Type: GrantFiled: February 17, 2004Date of Patent: April 11, 2006Assignee: Equistar Chemicals, LPInventors: Sandor Nagy, Barbara M. Tsuie
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Patent number: 7001964Abstract: Provided herein is an oligomerization product formed from alpha-olefins having at least three carbon atoms comprising dimers, at least about 80 weight percent of which are linear. In an embodiment, an oligomerization product formed from alpha-olefins having at least three carbon atoms comprises trimers, at least about 20 weight percent of which are linear. In another embodiment, an oligomerization product formed from alpha-olefins having at least three carbon atoms comprises tetramers, at least about 5 weight percent of which are linear. In yet another embodiment, an oligomerization product formed from alpha-olefins having at least three carbon atoms comprises pentamers, at least about 5 weight percent of which are linear.Type: GrantFiled: March 14, 2003Date of Patent: February 21, 2006Assignee: Chevron Phillips Chemical Company, LPInventor: Brooke L. Small
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Patent number: 6992035Abstract: Metallocene having two cyclic dienyl groups connected by a single carbon having an aryl substituent and a terminally unsaturated hydrocarbyl substituent, olefin polymerization catalyst systems prepared therefrom, and the use of such catalyst systems are disclosed.Type: GrantFiled: September 23, 2002Date of Patent: January 31, 2006Assignee: Phillips Petroleum CompanyInventors: M. Bruce Welch, Syriac J. Palackal, Bryan E. Hauger, David W. Dockter, Alexander Köppl, Helmut G. Alt
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Cross-linked polymer and process for producing the same, absorptive structure and absorptive article
Patent number: 6951911Abstract: A crosslinked polymer (A) which comprises, as essential structural units, units derived from (a) one or more vinyl monomers selected from the group consisting of water-soluble vinyl monomers and/or vinyl monomers which become water-soluble upon hydrolysis and units derived from (b) a crosslinking agent and which satisfies the following requirements: (1): (X)?25 g/g, (2): (Y)?15 g/g, and (3): (Y)??0.54 (X)+41. It has exceedingly high water retentivity and exceedingly high absorbing power under load. When applied to an absorbent structure and an absorbent article, the polymer has excellent absorbing performance. In the relationships, (X) is the amount of physiological saline retained through 1-hour absorption and (Y) is the amount of physiological saline absorbed through 1-hour standing under a load of 60 g/cm2.Type: GrantFiled: October 15, 2002Date of Patent: October 4, 2005Assignee: Sanyo Chemical Industries, Ltd.Inventors: Daisuke Tagawa, Tatsuya Asai, Yoshiyuki Iwasaki, Yoshihisa Ota, Keiji Tanaka -
Patent number: 6927262Abstract: The invention relates to novel bridged biphosphole ligands according to the general formula: where R2, R3, R4 are chosen from hydrogen, alkyl, aryl or silyl, R1 is chosen from hydrogen, alkyl, aryl or halogen, R1 possibly being replaced with a direct bond between the two phosphorus atoms and T is a divalent group. The invention also relates to metallocenes obtained from these ligands. These metallocenes are useful as catalytic components for the polymerization of olefins.Type: GrantFiled: January 25, 2002Date of Patent: August 9, 2005Assignee: AtofinaInventors: Francois-Xavier Buzin, Francois Nief, Francois Mathey, Jean Malinge, Eliane Deschamps, Bernard Deschamps
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Patent number: 6897275Abstract: Transition metal complexes of selected monoanionic phosphine ligands, which also contain a selected Group 15 or 16 (IUPAC) element and which are coordinated to a Group 3 to 11 (IUPAC) transition metal or a lanthanide metal, are polymerization catalysts for the (co)polymerization of olefins such as ethylene and ?-olefins, and the copolymerization of such olefins with polar group-containing olefins. These and other nickel complexes of neutral and monoanionic bidentate ligands copolymerize ethylene and polar comonomers, especially acrylates, at relatively high ethylene pressures and surprisingly high temperatures, and give good incorporation of the polar comonomers and good polymer productivity. These copolymers are often unique structures, which are described.Type: GrantFiled: May 31, 2001Date of Patent: May 24, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Lin Wang, Elisabeth Hauptman, Lynda Kaye Johnson, Elizabeth Forrester McCord, Ying Wang, Steven Dale Ittel
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Patent number: 6894180Abstract: A catalyst system having the following formula is described herein. wherein M is a metal; each X is an atom or group banded to M and may be the same or different; R1 and R2 may be the same or each may be different and are substituted or unsubstituted cyclopentadienyl or aromatic groups; RB is a structural bridge between R1 and R2 imparting stereorigidity thereto and including at least one heteroatom bonded to M, with each of R1 and R2 bonded to the same or different heteroatom of RB which heteroatom is also bonded to M; Z is the coordination number of M and is greater than or equal to 4 and m is the number of bonds between M and heteroatoms of RB.Type: GrantFiled: October 23, 2003Date of Patent: May 17, 2005Assignee: Fina Technology, Inc.Inventors: Abbas Razavi, Margarito Lopez, Didier Baekelmans, Vladimir Marin
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Patent number: 6891007Abstract: This invention relates to a process for polymerizing polar substituted norbornenes and/or cycloalkenes, optionally, in the presence of another unsaturated compound. The method is characterized in that the polymerization is carried out in the presence of one or more tungsten carbine complexes.Type: GrantFiled: March 19, 2001Date of Patent: May 10, 2005Assignee: Bayer AktiengesellschaftInventors: Karl-Heinz Alexsander Ostoja Starzewski, Karin Weiss, Martin Olaf Thüring
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Patent number: 6887958Abstract: Ethylene or propylene are copolymerized with one another or with other olefinically unsaturated compounds in the presence of a catalyst system comprising the following components: A) a complex of a transition metal with one or two substituted or unsubstituted 1,3,5-triazacyclohexane ligands or corresponding ligands in which one or more of the ring nitrogens are replaced by phosphorus or arsenic atoms, and B) if desired, one or more activator compounds.Type: GrantFiled: October 5, 2000Date of Patent: May 3, 2005Assignee: BASF AktiengesellschaftInventors: Shahram Mihan, Randolf Köhn, Guido Seifert
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Patent number: 6875835Abstract: A copolymer of ethylene and a higher alpha olefin, preferably 1-hexene, can be produced using an activated chromium containing catalyst system and a cocatalyst selected from the group consisting of trialkylboron, trialkylsiloxyalutninum, and a combination of trialkylboron and thalkylaluminum compounds. The polymerization process must be carefully controlled to produce a copolymer resin having an exceptionally broad molecular weight distribution, extremely high PENT ESCR values, and a natural branch profile that impacts branching preferably into the high molecular weight portion of the polymer. The resulting copolymer resin is especially useful in high stiffness pipe applications.Type: GrantFiled: December 16, 2002Date of Patent: April 5, 2005Assignee: Phillips Petroleum CompanyInventors: Max P. McDaniel, Elizabeth A. Benham, Al R. Wolfe, Paul J. DesLauriers
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Patent number: 6864209Abstract: A catalytic composition for oligomerizing olefins, in particular ethylene, comprises mixing at least one nickel complex, prepared by reacting a nickel salt with a phosphonite ligapd, with at least one hydrocarbylaluminum compound in a molar proportion with respect to the nickel of not more than 8? and selected from the group formed by tris(hydrocarbyl)aluminum compounds, chlorinated or brominated hydrocarbylaluminum compounds and aluminoxanes.Type: GrantFiled: March 31, 2003Date of Patent: March 8, 2005Assignee: Institut Francais du PetroleInventors: Fredy Speiser, Pierre Braunstein, Lucien Saussine
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Publication number: 20040254067Abstract: The instant invention provides a late transition metal complex which can be used with an activating cocatalyst to produce polymers and copolymers. The invention also provides methods for polymerizing olefins, as well as copolymers having polar monomers incorporated therein.Type: ApplicationFiled: July 16, 2004Publication date: December 16, 2004Inventors: Lisa Saunders Boffa, Abhimanyu Onkar Patil, Donald Norman Schulz, Robert Timothy Stibrany, Joseph Anthony Sissano, Stephen Zushma
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Publication number: 20040214970Abstract: The present invention relates to catalyst system containing at least one imidochrome compound and at least one activation compound. This invention also relates to imidochrome compounds, to a method for olefin polymerization and to methods for producing said imidochrome compounds.Type: ApplicationFiled: April 22, 2004Publication date: October 28, 2004Inventors: Markus Schopf, Joerg Sundermeyer, Jennifer Kipke, Konstantin A. Rufanov, Walter Heitz, Uwe Peucker
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Patent number: 6809057Abstract: An olefin polymerization catalyst system, comprising a catalyst represented by the general formula CrR4, wherein each R is independently a hydrocarbyl or substituted hydrocarbyl, with the proviso that R may not be a cyclopentadienyl group, an activator represented by the general formula, MQ2, where M is a Group II metal, where each Q is independently an alkyl, or substituted alkyl; and a support. The support may be organic or inorganic. Ethylene and one or more olefins may be polymerized by the catalyst system.Type: GrantFiled: February 10, 2003Date of Patent: October 26, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Zerong Lin, Robert T. Li, Anthony N. Speca, Stanley J. Katzen, David H. McConville
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Patent number: 6794488Abstract: A thermoplastic norbornene resin is purified by using a cleaning liquid to eliminate organic impurities, ionic impurities, metallic impurities, and particles of the resin. The cleaning liquid is selected from 2-propanol and a mixed solvent of 2-propanol and water. A substrate for a magnetic recording medium of the invention is fabricated by injection-molding the thermoplastic norbornene resin purified by this method. A magnetic recording medium of the invention includes such a substrate, and a magnetic layer, a protective layer, and a liquid lubricant layer sequentially formed on the substrate. A method for manufacturing such a magnetic recording medium is also provided.Type: GrantFiled: April 6, 2001Date of Patent: September 21, 2004Assignee: Fuji Electric Co., Ltd.Inventors: Youich Tei, Syoji Sakaguchi, Katsunori Suzuki
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Patent number: 6784261Abstract: The present invention relates to catalyst system containing at least one imidochrome compound and at least one activation compound. This invention also relates to imidochrome compounds, to a method for olefin polymerization and to methods for producing said imidochrome compounds.Type: GrantFiled: April 12, 2002Date of Patent: August 31, 2004Assignee: Basell Polyolefine GmbHInventors: Markus Schopf, Joerg Sundermeyer, Jennifer Kiepke, Konstantin A. Rufanov, Walter Heitz, Uwe Peucker
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Publication number: 20040132936Abstract: A method is provided for the polymerization of olefins substituted with a functional group using a transition metal catalyst that, by virtue of one or more stabilizing groups incorporated within the catalyst structure, “fixes” the stereoconfiguration of each olefinic monomer relative to the transition metal complex during each successive reaction in the polymerization process. The invention substantially reduces the likelihood of olefin rearrangement at the active site of the catalyst during polymerization. In one particular embodiment, the functional group is a polar, electron-donating group and the stabilizing group is a Lewis acid substituent; examples of polymers that can be prepared with such a system include poly(vinyl acetate), poly(vinyl alcohol), and poly(vinyl ethers). Novel complexes and catalyst systems useful in the polymerization method are also provided.Type: ApplicationFiled: January 3, 2003Publication date: July 8, 2004Inventors: Christopher D. Tagge, Robert B. Wilson, Hiroyuki Ono
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Publication number: 20040132610Abstract: A method is provided for the polymerization of olefins substituted with a functional group using a transition metal catalyst that, by virtue of one or more stabilizing groups incorporated within the catalyst structure, “fixes” the stereoconfiguration of each olefinic monomer relative to the transition metal complex during each successive reaction in the polymerization process. The invention substantially reduces the likelihood of olefin rearrangement at the active site of the catalyst during polymerization. In one particular embodiment, the functional group is a polar, electron-donating group and the stabilizing group is a Lewis acid substituent; examples of polymers that can be prepared with such a system include poly(vinyl acetate), poly(vinyl alcohol), and poly(vinyl ethers). Novel complexes and catalyst systems useful in the polymerization method are also provided.Type: ApplicationFiled: January 3, 2003Publication date: July 8, 2004Inventors: Christopher D. Tagge, Robert B. Wilson
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Patent number: 6750302Abstract: A polymerization catalyst is disclosed, wherein the catalyst comprises: (a) a metallocene of Ti, Zr or Hf, (b) an organoaluminum compound, and (c) a treated solid oxide support which comprises fluorine and chromium.Type: GrantFiled: December 16, 1999Date of Patent: June 15, 2004Assignee: Phillips Petroleum CompanyInventors: Max P. McDaniel, Kathy S. Collins, Elizabeth A. Benham, Anthony P. Eaton, Michael D. Jensen, Joel L. Martin, Gil R. Hawley, Eric T. Hsieh
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Publication number: 20040092683Abstract: The invention provides an optically active polymer which is a product obtained by polymerizing a chiral alkoxy-substituted phenylacetylene such as p-(2-methylbutoxy)phenylacetylene, of which the 2-methylbutoxy group has chirality, in an organic solvent such as triethylamine in the presence of a rhodium complex compound as a polymerization catalyst. The optically active polymer exhibits a much larger optical rotation than the monomeric compound per se and is colored in different colors of, e.g., yellow and black, depending on the organic solvent used for polymerization. The yellow polymer turns to black by exposure to the vapor of a specific organic solvent such as chloroform and returns to yellow by re-precipitation from a chloroform solution with addition of methyl alcohol as a precipitant.Type: ApplicationFiled: May 8, 2003Publication date: May 13, 2004Inventors: Masayoshi Tabata, Yasuteru Mawatari
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Patent number: 6723807Abstract: A catalyst obtained by contacting a transition metal compound (A) of the general formula [1]: [LpXoCpjM(N2)nM′XmLl]X′k [1], wherein M and M′ independently represent a transition metal of Group 3 to 10; X independently represents a hydrogen atom, halogen atom, a specific hydrocarbon group or the like; Cp is a cyclopentadienyl group; L represents a group which bonds to M or M′ by lone pair of electrons or a &pgr; electron; X′ represents a counter anion; k, l, m, o and p each independently represent an integer of 0 to 5; j represents an integer of 0 to 2; n+o+p+j≦6; n represents an integer of 1 to 3; and n+l+m≦6, with an organoaluminum, and an aluminoxane and/or boron compound, or with an aluminoxane and/or boron compound, and a process for producing an addition polymerization with the catalyst.Type: GrantFiled: December 20, 2002Date of Patent: April 20, 2004Assignee: Sumitomo Chemical Company, LimitedInventors: Masanobu Hidai, Masaaki Nabika
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Patent number: 6649558Abstract: Organometallic complexes having two phosphinimine ligands and at least one activatable ligand are catalyst components for olefin polymerization. Preferred polymerization systems are prepared by combining the organometallic complexes with an ionic activator and/or an alumoxane. Preferred catalyst components contain titanium, zirconium, or hafnium and are activated with an ionic activator to form catalysts for ethylene polymerization.Type: GrantFiled: January 3, 2001Date of Patent: November 18, 2003Assignee: Nova Chemicals (International) S.A.Inventors: Stephen John Brown, Xiaoliang Gao, Daryll G. Harrison, Ian McKay, Linda Koch, Qinyan Wang, Wei Xu, Rupert Edward von Haken Spence, Douglas W. Stephan
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Patent number: 6646069Abstract: The invention relates to a method for producing an ethylene polymer, comprising performing polymerization of ethylene in co-presence of hydrogen using a trialkylaluminum compound-carried chromium catalyst, wherein the chromium catalyst is obtained by calcination-activating a chromium compound that is carried on an inorganic oxide carrier in a non-reducing atmosphere to convert chromium atoms in the chromium compound into hexavalent chromium atoms for at least a portion thereof, and treating with a trialkylaluminum compound in an inert hydrocarbon solvent to carry thereon and removing to dry the solvent so that the chromium atoms are not over-reduced by the trialkylaluminum compound, and to an ethylene polymer suitable for blow molded articles obtained by the production method. The ethylene polymer of the invention have improved environment stress crack resistance (ESCR) and impact resistance in a good balance and are suitable for molded blow articles, in particular large size blow molded articles.Type: GrantFiled: July 6, 2001Date of Patent: November 11, 2003Assignee: Japan Polyolefins Co., Ltd.Inventors: Takashi Monoi, Hidenobu Torigoe
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Publication number: 20030166802Abstract: A process for synthesizing syndiotactic 1,2-polybutaidene, the process comprising the steps of (1) polymerizing monomer consisting essentially of 1,3-butadeine monomer within an organic solvent that includes at least 50% by weight of aliphatic solvent by using an iron-based catalyst composition, where said step of polymerizing occurs at a temperature above about 65° C., thereby forming a supersaturated solution of syndiotactic 1,2-polybutaidene, (2) maintaining the supersaturated solution of syndiotactic 1,2-polybutaidene at a temperature above about 65° C. until isolation of the syndiotactic 1,2-polybutadiene is desired, and (3) isolating the syndiotactic 1,2-polybutaidene from the supersaturated solution.Type: ApplicationFiled: February 20, 2002Publication date: September 4, 2003Applicant: Bridgestone Corp.Inventor: Steven Luo
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Patent number: 6613851Abstract: The invention relates to the use of cyclic carbene-&eegr;-ligand complexes for catalysis of olefin polymerization.Type: GrantFiled: March 26, 2001Date of Patent: September 2, 2003Assignee: Borealis Technology OyInventors: Klaus-Joachim Jens, Mats Tilset, Mark H Voges, Richard Blom, Morten Frøseth
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Patent number: 6586530Abstract: A block copolymer including a block of residues of a low surface tension (meth)acrylate monomer; a block of residues of a monomer free of hydroxyl group and amine group residues; and, optionally, a third block of residues of a monomer free of hydroxyl groups and amine groups. The first, second and third blocks are made of different residues from each other and the block copolymer has a polydispersity index of less than 2.5. A controlled radical polymerization method is disclosed to make the low surface tension block copolymers. The method includes the steps of sequentially adding a first monomer composition that is free of hydroxyl groups and amine groups and a second monomer composition that includes the low surface tension monomer to a suitable atom transfer radical polymerization initiator and polymerizing the monomer compositions to form a block copolymer.Type: GrantFiled: September 27, 2001Date of Patent: July 1, 2003Assignee: PPG Industries Ohio, Inc.Inventors: Jonathan D. Goetz, Kurt A. Humbert, Karl F. Schimmel, Karen A. Barkac, Simion Coca, Joanne H. Smith
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Publication number: 20030114593Abstract: A block copolymer including a block of residues of a low surface tension (meth)acrylate monomer; a block of residues of a monomer free of hydroxyl group and amine group residues; and, optionally, a third block of residues of a monomer free of hydroxyl groups and amine groups. The first, second and third blocks are made of different residues from each other and the block copolymer has a polydispersity index of less than 2.5. A controlled radical polymerization method is disclosed to make the low surface tension block copolymers. The method includes the steps of sequentially adding a first monomer composition that is free of hydroxyl groups and amine groups and a second monomer composition that includes the low surface tension monomer to a suitable atom transfer radical polymerization initiator and polymerizing the monomer compositions to form a block copolymer.Type: ApplicationFiled: September 27, 2001Publication date: June 19, 2003Inventors: Jonathan D. Goetz, Kurt A. Humbert, Karl F. Schimmel, Karen A. Barkac, Simion Coca, Joanne H. Smith
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Publication number: 20030114623Abstract: The present invention provides an olefin polymer having a narrow molecular weight distribution and a specific molecular weight, an olefin polymer having a functional group introduced at the terminal, a tapered polymer containing a segment wherein monomer composition continuously changes in the polymer chain, an olefin polymer having different segments which are bonded to each other, and a process for preparing these polymers. The olefin polymers of the invention are polymers of olefins of 2 to 20 carbon atoms and have a number-average molecular weight of not less than 500 and Mw/Mn of not more than 1.5.Type: ApplicationFiled: September 26, 2001Publication date: June 19, 2003Inventors: Makoto Mitani, Yasunori Yoshida, Junichi Mohri, Kazutaka Tsuru, Seiichi Ishii, Shinichi Kojoh, Tomoaki Matsugi, Junji Saito, Naoto Matsukawa, Shigekazu Matsui, Takashi Nakano, Hidetsugu Tanaka, Norio Kashiwa, Terunori Fujita
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Patent number: 6576723Abstract: A catalyst system which can be used in the polymerization of propylene comprises at least one metallocene as a rac/meso isomer mixture, at least one organoboroaluminum compound, at least one passivated support, at least one Lewis base and, if desired, at least one further organometallic compound.Type: GrantFiled: November 15, 2000Date of Patent: June 10, 2003Assignee: Basell Polyolefine GmbHInventors: Hans Bohnen, Markus Göres, Cornelia Fritze
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Publication number: 20030100783Abstract: A method is provided for synthesizing a polymer in a controlled fashion using a ring-opening metathesis polymerization (ROMP) reaction, wherein polymerization is carried out using a catalytically effective amount of an olefin metathesis catalyst and a bridged bicyclic or polycyclic olefin monomer that contains at least two heteroatoms directly or indirectly linked to each other. Preferred catalysts are Group 8 transition metal complexes, particularly complexes of Ru and Os. Such complexes include the ruthenium bisphosphine complex (PCy3)2(Cl)2Ru═CHPh (1) and the ruthenium carbene complex (IMesH2)(PCy3)(Cl)2Ru═CHPh (2). The invention also provides novel regioregular polymers synthesized using the aforementioned methodology, wherein the polymers may be saturated, unsaturated, protected, and/or telechelic. An exemplary polymer is poly((vinyl alcohol)2-alt-methylene)(MVOH).Type: ApplicationFiled: August 29, 2002Publication date: May 29, 2003Inventors: Robert H. Grubbs, Oren A. Scherman, Hyunjin M. Kim
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Patent number: 6569966Abstract: Method of preparation of ethylene copolymers suitable for manufacturing films or pipes so characterized that for the initiation of polymerization of ethylene and 1-alkene monomer a substantially innovated catalyst system containing silyl chromate compound is used. The catalyst system, containing a high yield structure A, is prepared by a sequential interaction of the following components: a) a silyl chromate compound completely freed from water and oxygen prior to its contact with the porous support, b) a support containing a suitable type and optimum concentration of hydroxyl groups, and c) an alkylating agent, being a combination of organometal compounds of aluminum (RO)AlR2 and magnesium (R1MgR2), the ratios between the components in the catalyst vary in the following ranges: content of silyl chromate on the support varies from 0.05 to 0.35% of the support weight, ratio between the total amount of organometals (ORG) to silyl chromate (expressed in terms of ORG/Cr) varies between 0.Type: GrantFiled: January 30, 2001Date of Patent: May 27, 2003Assignee: Polymer Institute Brno, Spol. S.R.O. & Chemopetrol, A.S.Inventors: Pavel {haeck over (S)}indelá{haeck over (r)}, Martin Havránek, Zdenek Salajka, Pavel Pe{haeck over (s)}ta, Kv{haeck over (e)}toslava {haeck over (S)}t{haeck over (e)}pánková, Ladislav Jansa
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Patent number: 6562921Abstract: A catalyst precursor compound useful for the polymerization of olefins. The compound comprises a metal atom and two &pgr;-bonded aromatic ring systems which are bridged by being linked to adjacent members of a ring structure in cis fashion.Type: GrantFiled: October 12, 2001Date of Patent: May 13, 2003Assignee: Univation Technologies, LLCInventors: Timothy T. Wenzel, Robert D. Froese, Thomas Henry Peterson
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Patent number: 6545107Abstract: A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) an molybdenum-containing compound, (b) a silyl phosphonate, and (c) an organoaluminum compound.Type: GrantFiled: June 8, 2001Date of Patent: April 8, 2003Assignee: Bridgestone CorporationInventors: Steven Luo, Michael W. Hayes, Dennis R. Brumbaugh
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Patent number: 6525150Abstract: Olefins are homopolymerized or copolymerized in the presence of a catalyst containing a reaction product obtained from vanadium oxytrichloride and 2,2′-thiobis(6-t-butyl-4-methylphenyl), an organic aluminum compound, such as trimethylaluminum, and an ionized ionic compound, such as N,N-dimethylanilinium tetrakis(pentafluorophenyl)borate, and the like. By using this catalyst to polymerize ethylene with an &agr;-olefin, such as propylene, 1-heptene, 1-octene, and the like, or a non-conjugated diene, such as 5-ethylidene-2-norbomene, and the like, a polymer having a high degree of copolymerization is obtained.Type: GrantFiled: April 21, 2000Date of Patent: February 25, 2003Assignee: JSR CorporationInventors: Toshiyuki Hayakawa, Fumio Tutumi