Group Ivb Metal Oxide (ti, Zr, Hf) Patents (Class 526/107)
  • Patent number: 11299567
    Abstract: This application relates to copolymer compositions and copolymerization processes, as well as to lubricating oil compositions comprising such copolymer compositions as viscosity index improvers, and base oil. The copolymer compositions may be made using two different metallocene catalysts: one capable of producing high molecular weight copolymers; and one suitable for producing lower molecular weight copolymers having at least a portion of vinyl terminations, and the copolymer compositions produced thereby. Copolymer compositions may comprise (1) a first ethylene copolymer fraction having high molecular weight, exhibiting branching topology, and having relatively lower ethylene content (based on the weight of the first ethylene copolymer fraction); and (2) a second ethylene copolymer fraction having low molecular weight, exhibiting linear rheology, and having relatively higher ethylene content (based on the weight of the second ethylene copolymer fraction).
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: April 12, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jingwen Zhang, Rainer Kolb, Andy H. Tsou, Periagaram S. Ravishankar, Jo Ann M. Canich, Francis C. Rix
  • Patent number: 9890274
    Abstract: Heterophasic polypropylene composition with improved impact strength/stiffness balance and with high flowability, reduced emissions and low shrinkage, and its use.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: February 13, 2018
    Assignee: Borealis AG
    Inventors: Jingbo Wang, Pauli Leskinen, Thomas Horrill, Markus Gahleitner, Cornelia Tranninger, Karlheinz Friedrich, Pavel Shutov
  • Patent number: 9650448
    Abstract: The process includes reacting a reaction mixture comprising magnesium ethoxide (Mg(OEt)2), triethylaluminum (TEAl), and 2-ethylhexanol (2-EHOH) to form magnesium 2-ethyl hexyl alkoxide (Mg(2-EHO)2) and contacting Mg(2-EHO)2 in hexane with a first agent to form a reaction product “A.” The process further includes contacting the reaction product “A” with a second agent to form a reaction product “B”, wherein the second agent includes a transition metal and a halogen. The process further includes contacting the reaction product “B” with a third agent to form a reaction product “C”, wherein the third agent includes a first metal halide. In addition, the process includes contacting the reaction product “C” with a fourth agent to form a reaction product “D”, wherein the fourth agent includes a second metal halide. The process also includes contacting the reaction product “D” with a fifth agent to form a Ziegler-Natta catalyst, wherein the fifth agent includes an organoaluminum compound.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: May 16, 2017
    Assignee: Fina Technology, Inc.
    Inventors: Lei Zhang, David J. Rauscher
  • Patent number: 9464147
    Abstract: The instant invention pertains to a process for preparing an ethylene homo- or copolymer in the presence of a supported chromium catalyst by slurry loop polymerization or copolymerization, whereby the resulting polymer powder has an increased powder density, in which the supported chromium catalyst has a chromium content of from 0.01 to 5 wt.-%, based on the element in the finished catalyst, and shows a particle size distribution measured according to ISO 13320-2009 comprising two main fractions one of which having a d50 of from 15 to 40 ?m and the other having a d50 of from 45 to 80 ?m said catalyst being further characterized by the fact that less than 10% wt of its catalyst particles has diameter lower than 20 ?m.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: October 11, 2016
    Assignee: Basell Polyolefine GmbH
    Inventors: Lars Kolling, Shahram Mihan
  • Patent number: 8604115
    Abstract: The ethylene/propylene copolymer nanocomposite is a copolymer prepared by inclusion of a filler of nanoparticles of titania doped with iron that permits control over, and variation of, the overall polymeric properties. Through the addition of the TiO2/Fe nanofiller, the concentration of polypropylene in the copolymer is increased and the overall crystallinity is decreased. In order to make the copolymer, a TiO2/Fe titania-iron nanofiller is first mixed with a polymerization catalyst (a vanadium (III) complex bearing bidentate salicylaldiminato ligands) in a reactor. The reactor is then charged with solvent (e.g., toluene) and heated to a temperature suitable for polymerization, e.g., about 30° C. Following heating, a mixture of ethylene and propylene gases (in selected molar ratios) is fed into the reactor at a fixed pressure, and methyl aluminum dichloride co-catalyst (MADC) is added to initiate polymerization.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: December 10, 2013
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mamdouh Ahmad Al-Harthi, Omer Yahya Bakather, Sadhan Kumar De, Reyad Awwad Khalaf Shawabkeh
  • Patent number: 8592535
    Abstract: Processes of forming catalyst systems, catalyst systems and polymers formed therefrom are described herein. The processes generally include providing a first compound including a magnesium dialkoxide, contacting the first compound with a second compound to form a solution of reaction product “A”, wherein the second compound is generally represented by the formula: Ti(OR1)4; wherein R1 is selected from C1 to C10 linear to branched alkyls, contacting the solution of reaction product “A” with a first metal halide to form a solid reaction product “B”, contacting solid reaction product “B” with a second metal halide to form reaction product “C” and contacting reaction product “C” with reducing agent to form a catalyst component.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: November 26, 2013
    Assignee: Fina Technology, Inc.
    Inventors: Kayo Vizzini, David Knoeppel, Lei Zhang
  • Patent number: 8541520
    Abstract: The method of making high-density polyethylene with titania-iron nanofillers involves mixing a TiO2/Fe titania-iron nanofiller with a vanadium (III) complex bearing salicylaldiminato ligands polymerization catalyst in a reactor. The reactor is then charged with toluene and heated to a temperature of about 30° C. Following heating, ethylene is fed into the reactor at a fixed pressure, and a methyl aluminum dichloride cocatalyst is added to initiate in situ polymerization. Polymerization is quenched to yield high-density polyethylene with titania-iron nanofillers, which is then washed and dried. Through the addition of a TiO2/Fe nanofiller, the molecular weight, the crystallinity and the melting temperature of high-density polyethylene are all increased, while the polydispersity index (PDI) is decreased.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: September 24, 2013
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mamdouh Ahmad Al-Harthi, Omer Yahya Bakather, Sadhan Kumar De, Reyad Awwad Khalaf Shawabkeh
  • Patent number: 8168733
    Abstract: The present invention provides a copolymer that includes at least one alkene monomer, at least one acrylate monomer and at least one the unsaturated acid anhydridge monomer, and a method of preparing the same.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: May 1, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Byoung-Ho Jeon, Yoo-Young Jung, Ki-Su Ro, Kyung-Seop Noh, Bae-Kun Shin
  • Patent number: 8138116
    Abstract: The application discloses a Titanium oxide composition and the application thereof. The mentioned Titanium oxide composition comprises Titanium co-precipitate(s), organic acid, diol, and water. According to this application, a catalyzed poly-esterification with said Titanium oxide composition is also disclosed. The mentioned polyesterification comprises a step of adding said Titanium oxide composition into at least one stage selected from slurry stage, esterification stage, and polycondensation stage.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: March 20, 2012
    Assignee: Far Eastern New Century Corporation
    Inventors: Hsin-Chin Ho, Ching-Tsu Peng, Shih-Fong Lee, Yui-Chi Lin, Chun-Wei Chen
  • Publication number: 20110172379
    Abstract: Processes of forming catalyst systems, catalyst systems and polymers formed therefrom are described herein. The processes generally include providing a first compound including a magnesium dialkoxide, contacting the first compound with a second compound to form a solution of reaction product “A”, wherein the second compound is generally represented by the formula: Ti(OR1)4; wherein R1 is selected from C1 to C10 linear to branched alkyls, contacting the solution of reaction product “A” with a first metal halide to form a solid reaction product “B”, contacting solid reaction product “B” with a second metal halide to form reaction product “C” and contacting reaction product “C” with reducing agent to form a catalyst component.
    Type: Application
    Filed: January 11, 2010
    Publication date: July 14, 2011
    Applicant: Fina Technology, Inc.
    Inventors: Kayo Vizzini, David Knoeppel, Lei Zhang
  • Publication number: 20110104609
    Abstract: The present disclosure provides processes for producing resins suitable for use in forming toner compositions. In embodiments, the processes described herein comprise formation of latexes, including latexes for use in toners, produced without use of solvents.
    Type: Application
    Filed: November 2, 2009
    Publication date: May 5, 2011
    Applicant: XEROX CORPORATION
    Inventors: Shigang QIU, Santiago FAUCHER, John ABATE, Allan CHEN, Ke ZHOU
  • Publication number: 20110098422
    Abstract: Polyethylene compositions having improved properties are provided. In one aspect, a polyethylene composition having a long chain branching index (g?avg) of 0.5 to 0.9; a Melt Flow Rate (MFR) of greater than (49.011×MI(?0.4304)), where MI is Melt Index; and a weight average molecular weight to number average molecular weight (Mw/Mn) of less than or equal to 4.6 is provided.
    Type: Application
    Filed: October 9, 2008
    Publication date: April 28, 2011
    Applicant: Univation Technologies, LLC
    Inventors: Dongming Li, Mark G Goode, Rainer Kolb, Chi-I Kuo, Tae Hoon Kwalk, Ching-Tai Lue, Francis C. Rix, Daniel P. Zilker, JR.
  • Patent number: 7884162
    Abstract: The present invention provides a copolymer that includes at least one alkene monomer, at least one acrylate monomer and at least one the unsaturated acid anhydride monomer, and a method of preparing the same.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: February 8, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Byoung-Ho Jeon, Yoo-Young Jung, Ki-Su Ro, Kyung-Seop Noh, Bae-Kun Shin
  • Publication number: 20100240845
    Abstract: Catalyst component for the polymerization of olefins comprising Mg, Ti, halogen and an electron donor is obtained by a batch process comprising: (A) A first step comprising reacting an adduct of formula MgCl2(ROH)n, where R is a C1-C10 alkyl group, and n is from 0.5 to 6, in a liquid medium comprising a titanium compound having at least a Ti—Cl bond at a temperature ranging from 0° C. to 80° C. and then removing the liquid medium; (B) A subsequent step comprising reacting the solid product obtained in (A) in a liquid medium comprising an electron donor ED selected from ethers, esters, ketones, silanes, amines, nitriles and amides, and a titanium compound having at least a Ti—Cl bond at a temperature higher than 80° C. and then, after removing the liquid medium; (C) A subsequent step comprising reacting the solid product coming from (B) with a liquid medium comprising a titanium compound having at least a Ti—Cl bond at a temperature higher than 80° C.
    Type: Application
    Filed: June 7, 2007
    Publication date: September 23, 2010
    Applicant: Basell Poliolefine Italia s.r.l.
    Inventors: Gianni Collina, Maria Di Diego, Ofelia Fusco, Giampiero Morini, Paolo Vincenzi
  • Publication number: 20100204419
    Abstract: Disclosed herein is a method of forming a polymer, wherein the polymer is formed by a radical polymerisation reaction initiated by a solid oxide compound.
    Type: Application
    Filed: June 27, 2008
    Publication date: August 12, 2010
    Inventors: Rebecca Lesic, Thomas Maschmeyer, Anthony Frederick Masters, Antony John Ward
  • Publication number: 20100190936
    Abstract: Polyethylene is made by (co)polymerizing ethylene in a gas-phase reactor using a mixed catalyst system comprising a chromium catalyst supported on silica and a Group 4 transition metal catalyst, separately supported on silica. The Group 4 transition metal catalyst is defined by the formula shown, wherein M is a Group 4 metal, PI is a phosphinimide or ketimide ligand (shown), L is a monoanionic ligand which is a cyclopentadienyl or a bulky heteroatom type ligand, m is 1 or 2, n is 0 or 1, and p is an integer. The mixed catalyst system gives access to polyethylene having a broad or bimodal molecular weight distribution. In the copolymerization of ethylene, reversed or partially reversed comonomer distribution is achieved: the supported Group 4 component provides polymer segments having higher molecular weight and also higher comonomer incorporation than polymer segments produced at the supported chromium sites.
    Type: Application
    Filed: March 25, 2010
    Publication date: July 29, 2010
    Inventors: Peter Phung Minh Hoang, Victoria Ker, Bradley Funk
  • Publication number: 20100160579
    Abstract: The present invention provides a polymerization process which is conducted by contacting an olefin monomer and at least one olefin comonomer in the presence of hydrogen and a metallocene-based catalyst composition. Polymers produced from the polymerization process are also provided, and these polymers have a reverse comonomer distribution, low levels of long chain branches, and a ratio of Mw/Mn from about 3 to about 6.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 24, 2010
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Qing Yang, Max P. McDaniel, Joel L. Martin, Tony R. Crain, Randy S. Muninger, Jerry T. Lanier, Jeff S. Fodor, Paul J. Deslauriers, Chung C. Tso, David C. Rohlfing
  • Publication number: 20100130706
    Abstract: The present invention provides a copolymer that includes at least one alkene monomer, at least one acrylate monomer and at least one the unsaturated acid anhydride monomer, and a method of preparing the same.
    Type: Application
    Filed: May 15, 2008
    Publication date: May 27, 2010
    Inventors: Byoung-Ho Jeon, Yoo-Young Jung, Ki-Su Ro, Kyung-Seop Noh, Bae-Kun Shin
  • Patent number: 7723449
    Abstract: The present invention relates to a catalyst for synthesizing a polypropylene with a wide molecular weight distribution and use of the same. The catalyst comprises magnesium halide, titanium-containing compound, and an organic phosphate type electron donor compound. By the catalyst according to the present invention, a propylene polymer with a wide molecular weight distribution, easily controllable isotacticity and good processing properties can be synthesized.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: May 25, 2010
    Assignee: Changchun Institute of Applied Chemistry Chinese Academy of Sciences
    Inventors: Chunyu Zhang, Hongguang Cai, Bin Chen, Yuping Yuan, Qiaofeng Zhang, Weimin Dong, Xuequan Zhang
  • Patent number: 7691955
    Abstract: The present invention relates to the removal of hydrocarbon residues from a catalyst and more specifically the air activation of a catalyst containing hydrocarbon residues. It also relates to extruded pipe and utility conduit resins comprising polyethylene, household/industrial chemicals container resins, and to a polyethylene resin particularly suitable for large parts by blow molding and sheet extrusion procedures, wherein the resin is made by a process using an activated chromium and titanium-based catalyst.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: April 6, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Scott T. Roger, Thomas W. Towles, Anthony N. Speca, Stanley J. Katzen
  • Patent number: 7649061
    Abstract: The invention relates to a process for preparing a poly-1-olefin by polymerization of a 1-olefin of the formula R4CH?CH2, where R4 is hydrogen or an alkyl radical having from 1 to 10 carbon atoms, in suspension, in solution or in the gas phase, at a temperature of from 20 to 200° C. and a pressure of from 0.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: January 19, 2010
    Assignee: Basell Polyolefine GmbH
    Inventor: Friedhelm Gundert
  • Patent number: 7629423
    Abstract: The present invention provides method of preparing alkene-acrylate-norbornene terpolymer by polymerization of a monomer mixture consisting of alkene, acrylate and norbornene by a radical initiator under the presence of a Lewis acid. In the method of preparing the alkene-acrylate-norbornene terpolymer of the present invention, the terpolymer may be prepared in the mild condition of low temperature and low pressure by using the Lewis acid so that the process is simple and the property of the terpolymer may be easily controlled. In addition, the terpolymer prepared by the method includes the ethylene and the norbornene simultaneously so that it has high glass transition temperature, and the brittle property in forming of film is improved.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: December 8, 2009
    Assignee: LG Chem, Ltd.
    Inventors: Yoo-young Jung, Byoung-ho Jeon, Bae-kun Shin, Ki-soo Lee
  • Publication number: 20090221770
    Abstract: Metal complexes comprising certain polydentate heteroatom containing ligands, catalysts, and coordination polymerization processes employing the same are suitably employed to prepare polymers having desirable physical properties.
    Type: Application
    Filed: December 8, 2006
    Publication date: September 3, 2009
    Inventors: Jerzy Klosin, Lily Ackerman, Xiaohong Bei, Gary M. Diamond, James Longmire, Vince Murphy, Victor Nava-Salgado, James A.W. Shoemaker
  • Publication number: 20090018290
    Abstract: A method for the preparation of olefin polymerization catalysts that are the reaction products of the catalytic reaction of surface hydroxyls of a support with a trialkyl silane to afford hydrogen and the corresponding surface bound alkyl silyl ether and at the same time with a strong Lewis acid which support is converted to a silica bound anion that in a second step is fully converted by reaction with QM2 to the desired catalyst. Catalyst compositions are disclosed herein. Processes disclosed herein include processes for the polymerization of olefinically unsaturated monomers comprising contacting a plurality of one or more of the monomers with the catalyst.
    Type: Application
    Filed: June 23, 2008
    Publication date: January 15, 2009
    Inventors: Gary L. Casty, George Rodriguez
  • Publication number: 20090009852
    Abstract: Polymer-coated pigment particles produced using atom transfer radical polymerization provide electrophoretic media having improved bistability without requiring addition to the electrophoretic fluid of additives which increase switching time.
    Type: Application
    Filed: August 8, 2008
    Publication date: January 8, 2009
    Applicant: E INK CORPORATION
    Inventors: Charles Howie Honeyman, Elizabeth M. Gates, Matthew A. King, Andrew Y. Oleson, Thomas H. Whitesides, Michael D. Walls
  • Patent number: 7473664
    Abstract: Methods of forming polyolefins and catalysts are described herein. Such methods generally include forming Ziegler-Natta catalyst compounds in the absence of one or more blended compounds typically used to form such catalyst.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: January 6, 2009
    Assignee: Fina Technology, Inc.
    Inventors: Kayo Vizzini, David Knoeppel, Steven Gray, David Rauscher, Tim Coffy, Henry Enriquez
  • Publication number: 20090005522
    Abstract: The invention relates to a process for preparing a poly-1-olefin by polymerization of a 1-olefin of the formula R4CH?CH2, where R4 is hydrogen or an alkyl radical having from 1 to 10 carbon atoms, in suspension, in solution or in the gas phase, at a temperature of from 20 to 200° C. and a pressure of from 0.
    Type: Application
    Filed: July 27, 2005
    Publication date: January 1, 2009
    Applicant: Basell Bolyolefine GmbH
    Inventor: Friedhelm Gundert
  • Publication number: 20080306227
    Abstract: An oxygen-bridged bimetallic complex of the general formula (I) Cp2R1M1-O-M2R22Cp, ??(I) wherein Cp is independently a cyclopentadienyl, indenyl or fluorenyl ligand which can be substituted, or a ligand isolobal to cyclopentadienyl, R1, R2 independently are halide, linear or branched or cyclic alkyl, aryl, amido, phosphido, alkoxy or aryloxy groups, which can be substituted, M1 is Zr, Ti or Hf, and M2 is Ti, Zn, Zr or a rare earth metal. The complex can be useful as a polymerization catalyst.
    Type: Application
    Filed: April 28, 2008
    Publication date: December 11, 2008
    Inventors: Herbert W. Roesky, Prabhuodeyara M. Gurubasavaraj
  • Publication number: 20080227935
    Abstract: The invention relates to methods for producing cesium hydroxide solutions during which: cesium-containing ore is disintegrated with sulfuric acid while forming a cesium aluminum sulfate hydrate, which is poorly soluble at low temperatures; the formed cesium alum is separated away in the form of a solution from the solid ore residues; the aluminum is precipitated out of the cesium alum solution while forming a cesium sulfate solution; the formed cesium sulfate solution is reacted with barium hydroxide or stontium hydroxide while forming a cesium hydroxide solution, and; the formed cesium hydroxide solution is concentrated and purified.
    Type: Application
    Filed: March 24, 2006
    Publication date: September 18, 2008
    Inventors: Bernd Hirthe, Bernd Proft, Jochen Winkler, Udo Blumenthal, Gerhard Fink, Klaus Hauschild
  • Publication number: 20080194780
    Abstract: The present invention relates to catalyst systems for polyolefin production, and more particularly, to catalyst systems for polyolefins used in producing films.
    Type: Application
    Filed: February 21, 2006
    Publication date: August 14, 2008
    Applicant: UNIVATION TECHNOLOGIES, LLC
    Inventors: Chi-I Kuo, Steven K. Ackerman
  • Patent number: 7384885
    Abstract: The present invention relates to the removal of hydrocarbon residues from a catalyst and more specifically the air activation of a catalyst containing hydrocarbon residues. It also relates to extruded pipe and utility conduit resins comprising polyethylene, household/industrial chemicals container resins, and to a polyethylene resin particularly suitable for large parts by blow molding and sheet extrusion procedures, wherein the resin is made by a process using an activated chromium and titanium-based catalyst.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: June 10, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Scott T. Roger, Thomas W. Towles, Anthony N. Speca, Stanley J. Katzen
  • Patent number: 7375169
    Abstract: A method for polymerizing ethylene is provided. The method can include preparing a supported catalyst composition comprising the steps of: (a) dehydrating a chromium impregnated support; (b) at least partially dissolving a titanium-containing compound in one or more inert solvents to provide a solution comprising the titanium-containing compound; (c) contacting the dehydrated chromium impregnated support with the titanium-containing solution to provide a mixture comprising the solvent, titanium-containing compound and chromium impregnated support; (d) removing the solvent from the mixture; and (e) activating the product of step (d) at a temperature of at least 800° F. (427° C.) to provide a supported titanated chrome catalyst composition. The supported titanated chrome catalyst composition can be feed to a slurry reactor, and contacted with an optional co-catalyst, under polymerization conditions, with ethylene.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: May 20, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Edward F. Smith, Stanley J. Katzen, Anthony N. Speca, Thomas W. Towles
  • Patent number: 7348383
    Abstract: A Ziegler-Natta catalyst composition comprising a solid mixture formed by halogenation of: Al) a spray-dried catalyst precursor comprising the reaction product of a magnesium compound, a non-metallocene titanium compound, and at least one non-metallocene compound of a transition metal other than titanium, with A2) an organoaluminium halide halogenating agent, a method of preparing, precursors for use therein, and olefin polymerization processes using the same.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: March 25, 2008
    Assignee: Union Carbide Chemicals and Plastics Technology Corporation
    Inventors: Mary T. Zoeckler, Burkhard E. Wagner, Sun-Chueh Kao
  • Patent number: 7169871
    Abstract: The present invention relates to propylene polymers made by using catalyst components for the polymerization of olefins comprising Mg, Ti, halogen and at least two electron donor compounds, said catalyst component being characterized by the fact that at least one of the electron donor compounds, present in an amount from 20 to 50% by mol with respect to the total amount of donors, is selected from esters of succinic acids which are not extractable, under the conditions described below, for more than 25% by mol and at least another electron donor compound which is extractable, under the same conditions, for more than 35%. The said catalyst component are capable to give polymers with high xylene insolubility, high stereoblock content and broad MWD suitable for making the polymers usable in the BOPP sector.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: January 30, 2007
    Assignee: Basell Poliolefine Italia s.r.l.
    Inventors: Giampiero Morini, Giulio Balbontin
  • Patent number: 7135544
    Abstract: Processes for the living polymerization of olefin monomers with terminal carbon-carbon double bonds are disclosed. The processes employ initiators that include a metal atom and a ligand having two group 15 atoms and a group 16 atom or three group 15 atoms. The ligand is bonded to the metal atom through two anionic or covalent bonds and a dative bond. The initiators are particularly stable under reaction conditions in the absence of olefin monomer. The processes provide polymers having low polydispersities, especially block copolymers having low polydispersities. It is an additional advantage of these processes that, during block copolymer synthesis, a relatively small amount of homopolymer is formed.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: November 14, 2006
    Assignee: Massachusetts Institute of Technology
    Inventors: Richard R. Schrock, Robert Bauman
  • Patent number: 7091260
    Abstract: A bone cement mixture comprised of a polymer component containing an x-ray contrast medium and a monomer component, wherein the x-ray contrast medium is a polymer or copolymer having compounds of radio-opaque elements bonded thereto, or is in the form of substantially spherical polymer or copolymer particles with radio-opaque inorganic nano-particles dispersed therein.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: August 15, 2006
    Assignee: Heraeus Kulzer GmbH & Co. KG
    Inventor: Klaus-Dieter Kūhn
  • Patent number: 6887819
    Abstract: This invention provides compositions that are useful for polymerizing at least one monomer into at least one polymer.
    Type: Grant
    Filed: January 5, 2004
    Date of Patent: May 3, 2005
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Shirley J. Martin, Kathy S. Collins, Marvin M. Johnson
  • Patent number: 6825309
    Abstract: The present invention relates to catalyst components for the polymerization of olefins comprising Mg, Ti, halogen and at least two electron donor compounds, said catalyst component being characterized by the fact that at least one of the electron donor compounds, present in an amount from 20 to 50% by mol with respect to the total amount of donors, is selected from esters of succinic acids which are not extractable, for more than 25% by mol and at least another electron donor compound which is extractable, for more than 35%. The said catalyst component are capable to give polymers with high xylene insolubility, high stereoblock content and broad MWD suitable for making the polymers usable in the BOPP sector.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: November 30, 2004
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Giampiero Morini, Giulio Balbontin
  • Patent number: 6703456
    Abstract: A process (I) for producing an &agr;-olefin polymerization catalyst whereby (1) a titanium compound is reduced by an organomagnesium compound in the presence of an organosilicon compound to produce a reduction solid, (2) the reduction solid is aged to produce a solid product, (3) the solid product is contacted with an ether compound, titanium tetrachloride and an organic acid halide compound, to produce an organic acid halide-treated solid, (4) the organic acid halide-treated solid is contacted with a mixture of an ether compound, titanium tetrachloride and an ester compound, or with a mixture of an ether compound and titanium tetrachloride to produce a solid catalyst component containing a titanium compound, and (5) the solid catalyst component is contacted with an aluminum compound and an electron donor compound to produce a catalyst for &agr;-olefin polymerization. A process (II) for producing an &agr;-olefin polymer using a catalyst produced by process (I).
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: March 9, 2004
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Jiro Mori, Tomoaki Tanaka, Yasunori Kaminaga
  • Patent number: 6639031
    Abstract: The invention relates to a process for preparing a support material having an increased number of reactive groups and to a process for preparing coreactive surfaces that may have catalytic or cocatalytic properties.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: October 28, 2003
    Assignee: Merck GmbH
    Inventors: Eike Poetsch, Herwig Buchholz
  • Patent number: 6635734
    Abstract: The present invention provides polypropylene having xylene solubles from 0.6 to 1.5 weight percent and isotacticity equal to or greater than about 98.0 percent. The polypropylene is obtained by contacting propylene monomer under suitable polymerization conditions with (a) a Ziegler-Natta catalyst, (b) a co-catalyst, and (c) an electron donor.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 21, 2003
    Assignee: Fina Technology, Inc.
    Inventors: Edwar S. Shamshoum, Sehyun Kim
  • Patent number: 6632897
    Abstract: Described is the use of nanoscale metal oxide particles as catalysts for the thermal and/or photochemical polymerization of species having at least one polymerizable carbon-carbon multiple bond and/or at least one carbon containing ring capable of undergoing a ring opening polymerization.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: October 14, 2003
    Assignee: Institut Für Neue Materialien gemeinnützige
    Inventors: Elisabeth Geiter, Helmut Schmidt
  • Patent number: 6610806
    Abstract: Processes for the living polymerization of olefin monomers with terminal carbon-carbon double bonds are disclosed. The processes employ initiators that include a metal atom and a ligand having two group 15 atoms and a group 16 atom or three group 15 atoms. The ligand is bonded to the metal atom through two anionic or covalent bonds and a dative bond. The initiators are particularly stable under reaction conditions in the absence of olefin monomer. The processes provide polymers having low polydispersities, especially block copolymers having low polydispersities. It is an additional advantage of these processes that, during block copolymer synthesis, a relatively small amount of homopolymer is formed.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: August 26, 2003
    Assignee: Massachusetts Institute of Technology
    Inventors: Richard R. Schrock, Robert Baumann
  • Publication number: 20030120002
    Abstract: This invention provides compositions that are useful for polymerizing at least one monomer into at least one polymer.
    Type: Application
    Filed: February 4, 2003
    Publication date: June 26, 2003
    Applicant: PHILLIPS PETROLEUM COMPANY
    Inventors: Max P. McDaniel, Shirley J. Martin, Kathy S. Collins, Marvin M. Johnson
  • Patent number: 6531550
    Abstract: A process of using a catalyst composition to polymerize at least one monomer to produce a polymer. The process comprising contacting the catalyst composition, at least one monomer in a polymerization zone under polymerization conditions to produce the polymer. The catalyst composition is produced by a process comprising contacting at least one organometal compound, at least one solid mixed oxide compound, and at least one organoaluminum compound. The solid mixed oxide compound comprises oxygen and at least two elements selected from the group consisting of groups 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, and 15 of the periodic table, including lanthanides and actinides.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: March 11, 2003
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Shirley J. Martin, Kathy S. Collins, Marvin M. Johnson
  • Patent number: 6531565
    Abstract: A process is disclosed for producing polyethylene resin of broad molecular weight distribution, when formed into a film, high barrier to moisture (low MVTR (Moisture Vapor Transmission Rate) for the film). The resin is formed by polymerizing ethylene, preferably in a gas phase process or in a slurry process, using a post-titanated catalyst, that is, a catalyst wherein after initial formation of a catalyst comprising Cr—Ti-inorganic refractory support, further titanium is added to the catalyst in a post-titanation step, preferably to increase the titanium content of the catalyst to a final level preferably between 7 and 9.5 wt. %.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: March 11, 2003
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Gene E. Kellum, Kevin J. Taylor, Charles D. Mills, James A. Solis
  • Patent number: 6512061
    Abstract: The invention provides a process for producing polypropylene and/or random copolymers of propylene type using a stereoregular catalyst which comprises a titanium-containing solid catalyst component (A), an organoaluminum compound (B) and if required an organosilicon compound (C), wherein [I] before carrying out homopolymerization of propylene or random copolymerization of propylene with an &agr;-olefin other than propylene, the above component (A), an organoaluminum compound (B′) and if required an organosilicon compound (C′) are used, and a small amount of propylene or ethylene and/or an &agr;-olefin of 4-20 carbon atoms for pre-activation treatment is supplied to the above component (A), and [II] a catalyst which is prepared by adding an organosilicon compound (C″) to the pre-activated stereoregular catalyst in a molar ratio of 0.1-50 as Si/Ti, is used to produce polypropylene or propylene random copolymers.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: January 28, 2003
    Assignee: Chisso Corporation
    Inventors: Masami Kimura, Takanori Nakashima, Chikashi Okayama
  • Patent number: 6506857
    Abstract: The invention is directed to bridged metallocene catalyst complexes that are sufficiently soluble in aliphatic solvents to be particularly suitable for solution olefin polymerization processes such that olefin copolymers can be prepared with high molecular weights and catalyst activities particularly at high polymerization reaction temperatures. More specifically, the invention particularly relates to a polymerization process for ethylene copolymers having a density of about 0.850 to about 0.940 comprising contacting, under solution polymerization conditions at a reaction temperature at or above 60° C. to 250° C.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: January 14, 2003
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Francis C. Rix
  • Patent number: 6495638
    Abstract: A process is provided to produce a catalyst system. The process comprises blending a first component and a second component. The first component of the catalyst system comprises chromium on a support. The amount of chromium on the support is from about 0.05 to about 5 weight percent based on the weight of the support. The support comprises fluorided alumina. The support has a surface area from about 200 to about 550 square meters per gram and a pore volume from about 0.7 to about 2.5 cubic centimeters per gram. The first component is activated at a temperature in the range of about 500° C. to about 900° C. The second component is a transition metal halide catalyst. A process comprising polymerizing ethylene or copolymerizing ethylene and at least one other monomer using the catalyst system to produce ethylene polymers is also provided.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: December 17, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Elizabeth A. Benham, Al R. Wolfe
  • Patent number: 6489410
    Abstract: In accordance with this invention are methods for making the novel compositions and methods of using the compositions for polymerization of olefins. In its broadest form, the method of producing the supported catalytic composition of the present invention comprises treating an inorganic or inorganic oxide support which has incorporated uniformly therein a Group 3-10 transition metal from the Periodic Table with a metal alkylating reagent wherein the reaction product is then treated with a halogenating reagent. The resultant reaction product can be recovered and is available for use in conjunction with the activating co-catalyst for the polymerization of polyolefins.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 3, 2002
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Michael John Carney, David George Ward