Compound With Silicon-hydrogen Bond Or Organic Compound With Silicon-carbon Bond Patents (Class 502/158)
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Publication number: 20040162407Abstract: A catalyst for bulk polymerization of a polymerizable unsaturated compound of the invention comprises a compound having at least one thiol group and a secondary hydroxyl group and represented by the following formula (I): 1Type: ApplicationFiled: February 17, 2004Publication date: August 19, 2004Inventors: Syuji Okamoto, Hiroshi Ueno
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Publication number: 20040162215Abstract: A compound useful as a cocatalyst or cocatalyst component, especially for use as an addition polymerization catalyst compound, corresponding to the formula: (A*+a)b(Z*J*j)−cd, wherein:Type: ApplicationFiled: January 20, 2004Publication date: August 19, 2004Inventor: Alexander Vogel
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Patent number: 6777566Abstract: A process for producing platinum alkenyl polysiloxane complex compounds, especially platinum divinyltetramethyldisiloxane, by reacting a haloplatinum compound with at least one alkenyl polysiloxane in the initial presence of platinum in the form of a platinum complex compound as an autocatalyst and in the initial presence of at least one base in an organic solvent or mixture of organic solvents that can be oxidized by the haloplatinum compound.Type: GrantFiled: October 16, 2002Date of Patent: August 17, 2004Assignee: W. C. Heraeus GmbH & Co. KGInventors: Ramona Reitz, Richard Walter
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Publication number: 20040157729Abstract: 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: ApplicationFiled: February 10, 2003Publication date: August 12, 2004Inventors: Zerong Lin, Robert T. Li, Anthony N. Speca, Stanley J. Katzen, David H. McConville
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Publication number: 20040147692Abstract: The invention discloses a solid catalytic component comprising a metallocene, at least one first ligand of which comprises a cyclopentadienyl group chemically bonded via a methyl group to a support composed of a porous inorganic compound. It also discloses a process for the preparation of such a solid catalytic component.Type: ApplicationFiled: October 27, 2003Publication date: July 29, 2004Inventors: Frederic Bortolussi, Christophe Boisson, Roger Spitz, Jean Malinge, Jean-Pierre Broyer
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Patent number: 6759559Abstract: The first embodiment of the present invention provides a process, which includes: in a continuous process in a membrane reactor, asymmetrically hydrogenating at least one C═C, C═N or C═O double bond with a catalyst. Another embodiment of the present invention provides a ligand, which includes at least one di-1,3-aminophosphine homochiral active center; optionally, a linker; and a molecular weight-enlarging polymer; wherein the active center is bound to the molecular weight-enlarging polymer through the linker or is bound directly to the molecular weight-enlarging polymer; and wherein the linker is defined in the claims. Another embodiment of the present invention provides a process for preparing the above-noted ligand, and a catalyst that includes the above-noted ligand.Type: GrantFiled: January 24, 2001Date of Patent: July 6, 2004Assignees: Degussa AG, Forschungszentrum Juelich GmbHInventors: Stephan Laue, Andreas Liese, Christian Wandrey, Olaf Burkhardt, Jens Woeltinger, Andreas Bommarius, Hans Henniges, Jean-Louis Philippe, Andreas Karau, Karlheinz Drauz
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Publication number: 20040127668Abstract: A new silicone condensation reaction, the condensation between an alkoxy silane or siloxane and an organo-hydrosilane or siloxane and catalysts therefore is described and claimed.Type: ApplicationFiled: December 30, 2002Publication date: July 1, 2004Inventors: Slawomir Rubinsztajn, James Anthony Cella
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Publication number: 20040116279Abstract: A process of making a supported catalyst includes steps of preparing a washcoat containing a mixture of hydrolyzed silicon alkoxide and a filler, depositing the washcoat on a surface of a solid support, drying the washcoat deposited on the surface of the solid support to form a coating on the surface of the solid support, and distributing a metal catalyst on the coating. The resulting supported catalyst may be used in a reaction vessel, such as a fixed bed reactor, for effecting a catalytic reaction, such as catalytic hydrogenation of an edible oil. The washcoatings can be formulated to provide a viscous composition that can be applied to form a thick coating on a substrate. The dried washcoatings exhibit excellent stability, cohesive layering strength, and adhesive strength between the coating and a substrate.Type: ApplicationFiled: December 16, 2002Publication date: June 17, 2004Inventors: William P. Addiego, Christopher R. Glose
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Publication number: 20040077807Abstract: Olefin polymerization in the presence of heterogeneous supported catalysts is improved by incorporating into the supported catalyst a unifunctional hydrophobic tether comprising a hydrophobic portion containing no basic nitrogen and a univalent reactive group. The unifunctional hydrophobic tether reduces fouling and sheeting in gas phase polymerization processes and improves polymer morphology and bulk density in slurry polymerization processes, while substantially maintaining or enhancing catalyst polymerization activity.Type: ApplicationFiled: October 17, 2002Publication date: April 22, 2004Applicant: Equistar Chemicals L.P.Inventors: Karen L. Neal-Hawkins, Sandor M. Nagy, William J. Sartain, Kiran M. Gupte, Kenneth W. Johnson
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Patent number: 6723806Abstract: Metal complex containing one or more silsesquioxane ligands having the formula: Zy(MAx)b (I) wherein Z is a silsesquioxane ligand according to the formula: (RSiO1.5)mOnBq (II) which is connected within one corner to one atom M or to two atoms M by one bridging oxygen atom, M is a metal from groups 3-10 of the Periodic System of the Elements and the lanthanides, A is a substituent bonded to the metal, y represents the number of silsesquioxane ligands and is 2-10, b represents the number of metal groups and is 2-20, x is the number of substituents A bonded to the metal; the value of x depends on the metal used and is equal to the valency of the metal minus 1, 2, 3 or 4, R is a substituent bonded to each Si, m is an integer and is equal to 5-19, n is 1.5 or 3, B is a group bonded to an oxygen atom that has one bond to Si and q is 0, 1 or 2.Type: GrantFiled: December 20, 2000Date of Patent: April 20, 2004Assignee: DSM N.V.Inventors: Maurits F. H. Van Tol, Sven K. H. Thiele, Robbert Duchateau, Hendrikus C. L. Abbenhuis, Rutger A. Van Santen
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Publication number: 20040072681Abstract: A solid catalyst component for olefin polymerization characterized by being formed from (a) a magnesium compound, (b) titanium tetrachloride, (c) a phthalic diester and a derivative thereof, and either (d1) a hydroxylated hydrocarbon compound (phenol, etc.) represented by a specific formula or (d2) a mercapto-containing hydrocarbon compound (thiophenol, etc.) represented by a specific formula. With a catalyst obtained from this solid catalyst component, an olefin polymer can be obtained in extremely high yield.Type: ApplicationFiled: January 24, 2002Publication date: April 15, 2004Inventors: Kunihiko Tashino, Isa Nishiyama, Takuma Yoshida, Yukihiro Suzuki, Hayashi Ogawa, Maki Sato
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Patent number: 6713643Abstract: Mesostructured and microporous to mesoporous organofunctionalized silica compositions are described. The compositions incorporate the organofunctional group L as part of a LSiO3 unit in the framework of the compositions. In addition the compositions incorporate the organofunctional group R as part of a O3Si—R—siO3 unit in the framework of the compositions. The compositions are useful as molecular sieves, supports for catalysts and numerous other applications requiring an organo group on surfaces of a silica.Type: GrantFiled: May 24, 2001Date of Patent: March 30, 2004Assignee: Board of Trustees of Michigan State UniversityInventors: Thomas J. Pinnavaia, Yutaka Mori
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Publication number: 20040055936Abstract: A hydrotreating catalyst that contains at least one element of group VIB and/or group VIII of the periodic table and optionally phosphorus and/or silicon, with an organic compound as an additive that contains at least one nitrogen atom, is used for the transformation of hydrocarbon-containing fractions, in particular the hydrodesulfurization, the hydrodenitrification, the hydrodemetallization, the hydrogenation of various petroleum fractions, such as residues, vacuum distillates, gas oils and gasolines, and the hydroconversion of vacuum distillates.Type: ApplicationFiled: July 3, 2003Publication date: March 25, 2004Applicant: Institut Francais du PetroleInventors: Fabrice Diehl, Christophe Bouchy, Tivadar Cseri, Slavik Kasztelan
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Patent number: 6706902Abstract: The present invention relates to the continuous production of nano-scale precious metal particles on SiH-containing support materials, the compositions themselves, and the use of these precious metal-containing compositions as catalyst. The continuous process according to the invention includes impregnating support materials and, after thermal activation, drying the support materials by spraying or by fluidized bed technology leads to form precious metal-containing support compositions that are active in the catalysis of oxidation reactions. The catalytically active precious metal-containing support compositions exhibit high selectivities and productivities and have very long catalyst service lives without deactivation. The invention also relates to a process for the oxidation of hydrocarbons in the presence of oxygen, a reducing agent and the precious-metal containing support compositions of the present invention.Type: GrantFiled: February 12, 2002Date of Patent: March 16, 2004Assignee: Bayer AktiengesellschaftInventors: Martin Stürmann, Markus Weisbeck, Gerhard Wegener, Frank Zbrozek
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Publication number: 20040033891Abstract: A cationic Group 3 or Lanthanide metal complex for coordination polymerization of olefins is disclosed. The precursor metal complex is stabilized by an anionic multidentate ancillary ligand and two monoanionic ligands. The ancillary ligand and the transition metal form a metallocycle having at least five primary atoms, counting any &pgr;-bound cyclopentadienyl group in the metallocycle as two primary atoms. Olefin polymerization is exemplified.Type: ApplicationFiled: April 18, 2003Publication date: February 19, 2004Inventors: Bart Hessen, Sergio Bambirra
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Patent number: 6689849Abstract: The present invention provides a catalyst for bulk or vapor-phase polymerization having high polymerization activity during bulk or vapor-phase polymerization and providing an olefin polymer having excellent properties in melt flow rate and stereoregularity by adding a small amount of hydrogen. The catalyst for bulk or vapor-phase polymerization of an &agr;-olefin compound under a presence of hydrogen, the catalyst is made by contacting the following ingredients (A) to (C). (A) a solid catalyst ingredient, comprising: (a) a magnesium compound, (b) titanium tetrachloride, and (c) dialkyl phthalate (Each of the alkyl group denotes a straight-chain or branched-chain hydrocarbon group having a carbon number of 3 to 20.); (B) an organoaluminum compound; and (C) an organosilicon compound, which is expressed by the following general chemical formula (1).Type: GrantFiled: December 19, 2001Date of Patent: February 10, 2004Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Takanori Sadashima, Masami Kanamaru, Tsuyoshi Ota, Hideo Funabashi
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Patent number: 6664350Abstract: The invention relates to supported ligands and catalysts for use in the polymerization of olefinically unsaturated monomers such as vinylic monomers, comprising the use of a compound attached to support, the compound being capable of complexing with a transitional metal. Preferably the compound capable of complexing with a transition metal is a diimine such as a 1,4-diaza-1,3-butadiene, a 2-pyridinecarbaldehyde imine, an oxazolidone or a quinoline carbaldeyde. Preferably the catalysts are used in conjunction with an initiator comprising a homolytically cleavable bond with a halogen atom. The application also discloses processes for attaching ligands to supports, and processes for using the catalysts disclosed in the application.Type: GrantFiled: August 14, 2000Date of Patent: December 16, 2003Assignee: University of WarwickInventors: David M. Haddleton, Arnaud Radigue, Dax Kukulj, David Duncalf
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Patent number: 6660677Abstract: A catalyst for the polymerization of olefins is disclosed. The catalyst comprises a complex comprising (a) a ligand of the formula X, (b) a group 8-10 transition metal, and optionally (c) a Bronsted or Lewis acid, wherein R1 and R6 are each, independently, hydrocarbyl, substituted hydrocarbyl, or silyl; N represents nitrogen; and A and B1 are each, independently, a heteroatom connected mono-radical wherein the connected heteroatom is selected from Group 15 or 16 of the Periodic Table; in addition, A and B1 may be linked to each other by a bridging group. The complex is attached to a solid support. The solid support, the Bronsted or Lewis acid, and the complex may be combined in any order to form the catalyst. A process for making the catalyst is also described. Olefin polymerization and copolymerization processes are also described.Type: GrantFiled: May 26, 2000Date of Patent: December 9, 2003Assignee: Eastman Chemical CompanyInventors: Peter Borden Mackenzie, Leslie Shane Moody, Christopher Moore Killian, Gino Georges Lavoie
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Patent number: 6657024Abstract: It has been discovered that using n-butylmethyldimethoxysilane (BMDS) as an external electron donor for Ziegler-Natta catalysts can provide a catalyst system that may prepare polypropylene films with improved properties. The catalyst systems of the invention provide for controlled chain defects/defect distribution and thus a regulated microtacticity. Consequently, the curve of storage modulus (G′) v. temperature is shifted such that the film achieves the same storage modulus at a lower temperature enabling faster throughput of polypropylene film through a high-speed tenter.Type: GrantFiled: September 3, 2002Date of Patent: December 2, 2003Assignee: Fina Technology, Inc.Inventors: Kenneth Paul Blackmon, David J. Rauscher, Michael Ray Wallace
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Publication number: 20030220190Abstract: The present invention relates to ligands and the synthesis of those ligands for use in metallocene complexes. More particularly, the present invention relates to the synthesis of diarylsilyl bridged biscyclopentadienes using diarylsilyldisulfonates. Even more particularly, the present invention describes Group IV metallocenes containing diarylsilyl bridged bis-cyclopentadienyl ligands prepared from contacting a diarylsilyldisulfonate with an organometallic indenyl reagent.Type: ApplicationFiled: October 16, 2002Publication date: November 27, 2003Inventors: Francis C Rix, Terry J Burkhardt, Robert T Li, William T Haygood
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Patent number: 6649083Abstract: A synthetic, semi-crystalline, porous inorganic oxide composition containing a reactive organic silane moiety which on the surface of pore walls. The composition is prepared from a poly(oxyalkylene) based surfactant and a hydrolyzable organic silane. The surfactant is preferably a poly (ethylene) oxide, a poly(propylene) oxide polymer or mixtures thereof. The organic silane is preferably mercaptopropylsilane. The compositions are particularly useful as adsorbents, and catalysts.Type: GrantFiled: August 12, 1999Date of Patent: November 18, 2003Assignee: Board of Trustees of Michigan State UniversityInventors: Thomas J. Pinnavaia, Louis Mercier
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Publication number: 20030207756Abstract: This invention provides compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said composition comprises a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted treated solid oxide compound.Type: ApplicationFiled: May 19, 2003Publication date: November 6, 2003Inventors: Max P. McDaniel, Kathy S. Collins, Elizabeth A. Benham, Anthony P. Eaton, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
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Patent number: 6632770Abstract: The invention provides new polymerization catalyst activator compositions including a non-coordinating or ionizing activator having a siloxane moiety. The invention also provides a new supported catalyst activator composition and method of making the composition.Type: GrantFiled: December 22, 2000Date of Patent: October 14, 2003Assignee: Univation Technologies, LLCInventor: Matthew W. Holtcamp
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Publication number: 20030191013Abstract: The invention relates to heterogeneous catalytic systems obtainable by reacting a porous inorganic support with an alumoxane and subsequently supporting at least one metallocene compound thereon, characterized in that the metallocene compound is defined by the following general formulas: 1Type: ApplicationFiled: April 26, 1999Publication date: October 9, 2003Inventors: ANTONIO MUNOZ-ESCALONA LAFUENTE, PILAR LAFUENTE CANAS, JOSE SANCHO ROYO, BEGONA PENA GARCIA, CARLOS MARTIN MARCOS
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Patent number: 6627712Abstract: A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) an iron-containing compound, (b) a silyl phosphonate, and (c) an organoaluminum compound.Type: GrantFiled: February 19, 2001Date of Patent: September 30, 2003Assignee: Bridgestone CorporationInventor: Steven Luo
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Patent number: 6624248Abstract: Molecular weight-enlarged, homogeneously soluble ligands are provided that are especially useful for hydrogenation catalysts, wherein the ligands contain homochiral active centers of bis(3,4-diarylphosphinyl)pyrrolidines, and their use in producing cataylsts for enantioselective reactions, as well as the catalysts thus produced.Type: GrantFiled: January 24, 2001Date of Patent: September 23, 2003Assignee: Degussa AGInventors: Olaf Burkhardt, Jens Woltinger, Andreas Bommarius, Juan Jose Almena Perea, Hans Henniges, Karlheinz Drauz, Andreas Karau, Jean-Louis Philippe, Hans-Peter Krimmer, Gunther Oehme
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Publication number: 20030171206Abstract: A family of novel imino-amide catalyst precursors and catalysts useful for the polymerization of olefins, such as ethylene, higher alpha-olefins, dienes, and mixtures thereof.Type: ApplicationFiled: December 18, 2001Publication date: September 11, 2003Inventor: Rex Eugene Murray
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Patent number: 6617480Abstract: The present invention relates to a molecular weight-enlarged, homogeneously soluble ligand, which includes: an average molecular weight of at least 1000 g/mol; a molecular weight-enlarging polymer; optionally, a linker; and at least one homochiral active center; wherein the active center is bound to the molecular weight-enlarging polymer through the linker or is bound directly to the molecular weight-enlarging polymer, methods of preparing, catalysts containing same, and methods of using same.Type: GrantFiled: January 24, 2001Date of Patent: September 9, 2003Assignee: Degussa AGInventors: Hans-Peter Krimmer, Jens Woeltinger, Olaf Burkhardt, Ingo Klement, Hans Henniges, Karlheinz Drauz, Andreas Bommarius, Jean-Louis Philippe, Andreas Karau
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Patent number: 6610891Abstract: A method of producing aldehydes in a hydroformylation system wherein an olefinic compound is reacted with hydrogen and carbon monoxide in a hydroformylation reaction in the presence of a catalyst is provided. The hydroformylation system includes a reactor and a downstream catalyst process path. The temperature in the reactor and downstream catalyst process path is less than approximately 100° C., and preferably less than approximately 85° C., and most preferably less than approximately 80° C., such that formation of high boiler components from the reaction are substantially minimized. Further, the method of the present invention reduces degradation or decomposition of the catalyst, and in particular the ligand compound.Type: GrantFiled: December 3, 1999Date of Patent: August 26, 2003Assignee: Mitsubishi Chemical CorporationInventors: Lionel O'Young, Masaki Takai, Tooru Tsukahara, Akio Nakanishi
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Publication number: 20030158033Abstract: Novel catalyst monoamide precursor compositions and the corresponding single site-like catalysts for olefin polymerization.Type: ApplicationFiled: December 18, 2001Publication date: August 21, 2003Inventor: Rex Eugene Murray
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Patent number: 6605734Abstract: Alkene-platinum-silyl complexes described by formula (COD)Pt(SiR13−n)2Yn are claimed, where each R1 is independently selected from organic groups, halo atoms, and siloxy groups, each Y is an independently selected divalent bridging group between the silicon atoms bonded to platinum, n is 0, 1, 2, or 3, and COD is 1,5-cyclooctadiene.Type: GrantFiled: December 7, 2001Date of Patent: August 12, 2003Assignee: Dow Corning CorporationInventors: Aroop Kumar Roy, Richard Bruce Taylor
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Patent number: 6589903Abstract: A method for the synthesis of platinum alkenylpolysiloxane complexes, wherein a haloplatinum compound is reacted with at least one alkenylpolysiloxane, in the presence of a platinum complex as autocatalyst and a base, in an organic solvent.Type: GrantFiled: July 19, 2001Date of Patent: July 8, 2003Assignee: W. C. Heraeus GmbH & Co. KGInventors: Ramona Reitz, Richard Walter
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Patent number: 6559327Abstract: This invention is directed to alkyl cobalt (III) dioximates and methods for making these dioximates.Type: GrantFiled: April 30, 2001Date of Patent: May 6, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Alexei A. Gridnev, Gregorii A. Nikiforov
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Patent number: 6552136Abstract: Provided are a catalyst for olefin polymer production, which contains an organosilicon compound having a specific structure and with which olefin polymers produced have increased stereospecificity and increased melt fluidity; and a method for producing such olefin polymers.Type: GrantFiled: February 1, 2001Date of Patent: April 22, 2003Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Tsuyoshi Ota, Takanori Sadashima, Yasunori Kadoi, Toshio Isozaki, Kiyokazu Katayama
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Publication number: 20030069372Abstract: An olefin polymerization catalyst is described which includes: (A) a solid catalyst component being prepared by copulverizing a magnesium compound, an aluminum compound, an electron donor and a titanium compound, and (B) an organoaluminum compound. The present invention is also directed to a process for preparing polyolefins using the aforesaid catalyst system to polymerize olefins.Type: ApplicationFiled: October 9, 2001Publication date: April 10, 2003Applicant: Formosa Plastics Corporation, U.S.A.Inventors: Bing Lu, Honglan Lu, Chih-Jian Chen
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Patent number: 6544918Abstract: A catalyst system useful for polymerizing olefins is disclosed. The catalyst system comprises an activator and a complex that incorporates a Group 3 to 10 transition metal and at least one chelating dianionic bis(allyl) or bis(benzyl) ligand. The ligands are often easy to make, and they are readily incorporated into transition metal complexes. By modifying the structure of the dianionic ligand, polyolefin makers can control comonomer incorporation, catalyst activity, and polymer properties.Type: GrantFiled: July 17, 2001Date of Patent: April 8, 2003Assignee: Equistar Chemicals, LPInventors: Sandor Nagy, Karen L. Neal-Hawkins, Jonathan L. Schuchardt
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Patent number: 6541416Abstract: A silica-group composite oxide fiber formed of a composite oxide phase of an oxide phase (first phase) mainly made of a silica component and a metal oxide phase (second phase) excluding silica, in which the existent ratio of at least one metal element of a metal oxide constituting the second phase upward slopingly increases toward the surface layer of the fiber and a process for the production thereof.Type: GrantFiled: June 6, 2001Date of Patent: April 1, 2003Assignee: Ube Industries, Ltd.Inventors: Toshihiro Ishikawa, Yoshikatu Harada, Hidekuni Hayashi, Shinji Kajii
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Patent number: 6541410Abstract: This description addresses ionic compositions of matter comprising positively charged cations [Ct]+ and negatively charged anions [A]−, said anion comprising a central core Group 13 element to which are bound fluoroaryl ligands, at least one of said fluoroaryl ligands being substituted with a siloxy group represented by the symbols—SiOR3, wherein R is a C1-C30 hydrocarbyl or hydrocarbylsilyl substituent. [Ct]+ may be. selected from any capable of use with olefin polymerization catalysts and typically will be from the group consisting of anilinium and ammonium cations, trityl carbenium cations, Group 11 metal cations, silylium cations, the cations of the hydrated salts of Group 1 or 2 metals, and derivatives of the foregoing anilinium, ammonium, trityl carbenium, and silylium cations containing C1-C20 hydrocarbyl, hydrocarbylsilyl, or hydrocarbylamine substituents for one or more hydrogen atoms of said cations.Type: GrantFiled: June 23, 2000Date of Patent: April 1, 2003Assignee: ExxonMobil Chemical Patents Inc.Inventor: George Rodriguez
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Patent number: 6541412Abstract: A polymerization catalyst system and process, which utilizes a Group 14 and Group 16 containing oil or amorphous solid to solubilize polymerization catalyst components including metallocenes and Group 15 containing polymerization catalysts, is disclosed.Type: GrantFiled: December 10, 1999Date of Patent: April 1, 2003Assignee: Univation Technologies, LLCInventor: David E. Gindelberger
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Publication number: 20030055276Abstract: A catalyst system useful for polymerizing olefins is disclosed. The catalyst system comprises an activator and a complex that incorporates a Group 3 to 10 transition metal and at least one chelating dianionic bis(allyl) or bis(benzyl) ligand. The ligands are often easy to make, and they are readily incorporated into transition metal complexes. By modifying the structure of the dianionic ligand, polyolefin makers can control comonomer incorporation, catalyst activity, and polymer properties.Type: ApplicationFiled: July 17, 2001Publication date: March 20, 2003Inventors: Sandor Nagy, Karen L. Neal-Hawkins, Jonathan L. Schuchardt
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Publication number: 20030054948Abstract: Mesostructured and microporous to mesoporous organofunctionalized silica compositions are described. The compositions incorporate the organofunctional group L as part of a LSiO3 unit in the framework of the compositions. In addition the compositions incorporate the organofunctional group R as part of a O3Si—R—siO3 unit in the framework of the compositions. The compositions are useful as molecular sieves, supports for catalysts and numerous other applications requiring an organo group on surfaces of a silica.Type: ApplicationFiled: May 24, 2001Publication date: March 20, 2003Applicant: Board of Trustees operating Michigan State UniversityInventors: Thomas J. Pinnavaia, Yutaka Mori
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Patent number: 6518214Abstract: This invention discloses a process for making dilithium initiators in high purity. This process can be conducted in the absence of amines which is desirable since amines can act as modifiers for anionic polymerizations. The dilithium compounds made are highly desirable because they are soluble in aromatic solvents. The present invention more specifically discloses a process for synthesizing a dilithium initiator which comprises reacting disopropenylbenzene with a tertiary alkyl lithium compound in an aromatic solvent at a temperature which is within the range of about 0° C. to about 100° C. The present invention further discloses a process for synthesizing m-di-(1-methyl-3,3-dimethylbutyllithio)benzene which comprises reacting diisopropenylbenzene with tertiary-butyllithium in an aromatic solvent at a temperature which is within the range of about 0° C. to about 100° C.Type: GrantFiled: May 25, 2001Date of Patent: February 11, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Adel Farhan Halasa, Wen-Liang Hsu
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Publication number: 20020182334Abstract: The subject of the invention is a process for treating a “permeable” architectural material by impregnation, comprising the spraying onto the architectural material to be treated of one or more liquid-phase dispersions of at least one type of photocatalytic compounds based on metal oxide or sulphide and of at least one type of compound for promoting the adhesion of the said photocatalytic compounds to the said architectural material.Type: ApplicationFiled: January 25, 2002Publication date: December 5, 2002Inventors: Christian Marzolin, Roman Gerusz
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Patent number: 6489262Abstract: The present invention relates to an initiation system composed of the reaction product of at least one cyclic siloxane and at least one organometalic compound of sufficient reactivity to open the siloxane ring. Application of the present invention is to the preparation of homopolymers of (meth)acrylic, vinylaromatic or diene monomers, random or block copolymers of these monomers and, in particular, application to poly(methylmethacrylate) with a high content of isotactic triads.Type: GrantFiled: April 10, 1998Date of Patent: December 3, 2002Assignee: AtofinaInventors: Thomas Zundel, Philippe Teyssie, Robert Jerome, Christophe Navarro
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Publication number: 20020161268Abstract: A process for preparing an 1,3-alkanediol from a 3-hydroxyester includes hydrogenating a 3-hydroxyester in an alcohol-containing solvent in the presence of a hydrogenation catalyst prepared by adding an alkaline precipitator to an aqueous solution containing a copper salt to form particles, and then aging the particles following addition of colloidal silica thereto. Novel hydrogenation catalysts so prepared are also disclosed.Type: ApplicationFiled: November 29, 2001Publication date: October 31, 2002Inventors: Byeong No Lee, Eun Joo Jang, Jung Ho Lee, Hyung Rok Kim, Yo Han Han, Hyun Kwan Shin, Ho Sun Lee
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Patent number: 6469112Abstract: One aspect of the present invention relates to a catalyst system for use in olefinic polymerization, containing a solid titanium catalyst component; an organoaluminum compound having at least one aluminum-carbon bond; and an organosilicon compound comprising a (cycloalkyl)methyl group. Another aspect of the present invention relates to a method of making a catalyst for use in olefinic polymerization, involving the steps of reacting a Grignard reagent having a (cycloalkyl)methyl group with an orthosilicate to provide an organosilicon compound having a (cycloalkyl)methyl moiety; and combining the organosilicon compound with an organoaluminum compound having at least one aluminum-carbon bond and a solid titanium catalyst component to form the catalyst.Type: GrantFiled: August 15, 2001Date of Patent: October 22, 2002Assignee: Engelhard CorporationInventors: Chung-Ping Cheng, Michael D. Spencer
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Method for producing supported metallocene catalyst and olefin polymerization process using the same
Patent number: 6469113Abstract: The present invention relates to a method for producing supported metallocene catalyst and an olefin polymerization process using same, and more particularly to a method for manufacturing supported metallocene catalyst by reacting metallocene catalyst having an alkoxysilane group at a part of a ligand with a support having a highly reactive siloxane group at the surface, and the olefin polymerization process using the same.Type: GrantFiled: December 9, 1999Date of Patent: October 22, 2002Assignee: LG Chemical Ltd.Inventors: Bun-Yeoul Lee, Jae-Seung Oh -
Patent number: 6465387Abstract: A method for preparing synthetic, semi-crystalline, porous inorganic oxide composition containing a reactive organic silane moiety which is on the surface of pore walls. The composition is prepared from a poly(oxyalkylene) based surfactant and a hydrolyzable organic silane. The surfactant is preferably a poly(ethylene) oxide, a poly(propylene) oxide polymer or mixtures thereof. The organic silane is preferably mercaptopropylsilane. The compositions are particularly useful as adsorbents, and catalysts.Type: GrantFiled: October 18, 2000Date of Patent: October 15, 2002Assignee: Board of Trustees of Michigan State UniversityInventors: Thomas J. Pinnavaia, Louis Mercier
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Patent number: 6465585Abstract: A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) a chromium-containing compound; (b) an organomagnesium compound; and (c) a silyl phosphonate, also, a process for forming conjugated diene polymers by using the catalyst composition.Type: GrantFiled: February 19, 2001Date of Patent: October 15, 2002Assignee: Bridgestone CorporationInventor: Steven Luo
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Patent number: 6465388Abstract: A photocatalytic film is formed by: a step for forming an uncured underlayer from an organic composition on the surface of a resinous base and polymerizing the organic composition to convert the uncured underlayer into an underlayer having a hardness higher than that of the resinous base; a step for forming an uncured intermediate layer from a polymerizable and curable silicone composition on the uncured underlayer or on the underlayer to yield an uncured intermediate layer, and polymerizing the polymerizable and curable silicone composition to convert the uncured intermediate layer to an intermediate layer, the polymerizable and curable silicone composition being prepared mainly from a hydrolyzable tetrafunctional silane derivative; and a step for forming a photocatalytic layer on the intermediate layer. This process can form an intermediate layer having a very high hardness without cracking and can easily yield a photocatalytic film having a satisfactory abrasion resistance.Type: GrantFiled: July 27, 2000Date of Patent: October 15, 2002Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Atsushi Hozumi, Hitotoshi Murase