Material Contains Transition Metal Oxide (other Than Peroxide) Patents (Class 526/95)
  • Patent number: 10675605
    Abstract: The various embodiments of the present invention relate to a polymerization reactor where the agitator mixing performance is optimized for use with a high activity catalyst and methods for developing the same.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: June 9, 2020
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Yves Lacombe, Eric Clavelle, Stephen Salomons, Andrew Hawryluk, Stephen John Brown, Marion Walls
  • Patent number: 9481749
    Abstract: Methods for preparing metallocene-based catalyst systems containing an activator-support are disclosed. These methods are directed to contacting an activator-support, an organoaluminum compound, and a mixture containing a metallocene compound and cyclohexene or a mixture of cyclohexane and 1-hexene, resulting in catalyst systems with increased catalytic activity for the polymerization of olefins.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: November 1, 2016
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Kensha Marie Clark, Qing Yang, Gary L. Glass
  • Patent number: 9006362
    Abstract: Living radical polymerization processes, reaction products of such processes, and compositions containing such reaction products are provided. More particularly, a living radical polymerization of (meth)acrylic acid monomers employing having a defined order of introduction of the reactants and/or a specific set of reaction conditions, is provided.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: April 14, 2015
    Assignee: Henkel IP & Holding GmbH
    Inventors: Qinyan Zhu, David P. Dworak, John G. Woods, Anthony F. Jacobine
  • Patent number: 8969499
    Abstract: A method for producing polymer particles includes a preparation step for preparing a first oily liquid containing an oily olefin monomer, a radical polymerization initiator, and an iodine molecule; a synthesis step for obtaining a second oily liquid containing at least an iodine compound produced by a reaction between a radical generated by cleavage of the radical polymerization initiator and the iodine molecule in the first oily liquid; a suspension step for obtaining an oil droplet of the second oily liquid by suspending the second oily liquid in an aqueous solution containing an oxidizing agent, an acid, and a dispersant; and a polymerization step for polymerizing the oily olefin monomer in the oil droplet.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinnosuke Koji, Takayuki Hiratani, Kazumichi Nakahama
  • 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
  • Publication number: 20130274425
    Abstract: This invention relates to processes for increasing the viscosity of an oligomer composition including contacting the oligomer composition comprising one or more vinyl terminated oligomer with a supported mixed metal oxide catalyst; wherein the contacting causes the reaction of the vinyl terminated oligomers; and producing a product oligomer composition having a higher viscosity than the oligomer composition.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 17, 2013
    Inventors: Matthew W. Holtcamp, Donna J. Crowther, Caol P. Huff, Patrick Brant
  • Patent number: 8450427
    Abstract: The invention concerns a method of polymerizing an alkene monomer to produce a polymer using a catalyst that is Cu(O), Cu2Te, CuSe, Cu2S, Cu2O, or a combination thereof, an initiator, and a component comprising a solvent and optional nitrogen-containing ligand, where the combination of the component and monomer is capable of diproportionating Cu(I)X into Cu(O) and Cu(II)X2 where X is Cl, Br, or I.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: May 28, 2013
    Assignee: The Trustees Of The University Of Pennsylvania
    Inventor: Virgil Percec
  • Patent number: 8148588
    Abstract: The invention relates to a continuous process for preparing polyolefins having a bimodal or multimodal molar mass distribution in suspension in at least two reactors R1, R2.x, R3.y which are connected in series and in which different reaction conditions are set. In this process, the offgases A1, A2.x, A3.y, A4 and A5 leaving all the reactors connected in series are firstly collected, the collected offgases are then compressed in a compression stage 10, the compressed offgases are subsequently cooled and the cooled material is separated into a gaseous fraction and a liquid fraction. The separated fractions are then recirculated to the polymerization process at different points. The process of the invention allows the total conversion of the polymerization, based on monomer and comonomer used, to be increased to a surprising extent.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: April 3, 2012
    Assignee: Basell Polyolefine GmbH
    Inventors: Joachim Berthold, Frank Peter Alt, Kaspar Evertz, Peter Kölle
  • Patent number: 8076440
    Abstract: The invention relates to polysiloxane block copolymers of the formula A[LB(S)Q]m, where A is a polysiloxane block, L is a divalent organic linker, B is a polymer block composed of radically polymerizable monomers, S is a sulfur atom and Q is a monovalent organic radical and m is an integer from 1 to 50, to a method for their production, and to their use in cosmetics or personal care.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: December 13, 2011
    Assignee: Evonik Goldschmidt GmbH
    Inventors: Dirk Kuppert, Burghard Grüning, Brian Yang, Sven Balk, Gerd Löhden
  • Patent number: 7915357
    Abstract: Disclosed herein are various processes, including continuous fluidized-bed gas-phase polymerization processes for making a high strength, high density polyethylene copolymer, comprising (including): contacting monomers that include ethylene and optionally at least one non-ethylene monomer with fluidized catalyst particles in a gas phase in the presence of hydrogen gas at an ethylene partial pressure of 100 psi or more and a polymerization temperature of 105° C. or less to produce a polyethylene copolymer having a density of 0.945 g/cc or more and an ESCR Index of 1.0 or more wherein the catalyst particles are prepared at an activation temperature of 700° C. or less, and include silica, chromium, and titanium.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: March 29, 2011
    Assignee: Univation Technologies, LLC
    Inventors: Kevin Joseph Cann, Ronald S. Eisinger, Mark Gregory Goode, John H. Moorhouse, Cliff R. Mure, Stephen P. Jaker, Maria A. Apecetche
  • Publication number: 20100331493
    Abstract: The invention concerns a method of polymerizing an alkene monomer to produce a polymer using a catalyst that is Cu(O), Cu2Te, CuSe, Cu2S, Cu2O, or a combination thereof, an initiator, and a component comprising a solvent and optional nitrogen-containing ligand, where the combination of the component and monomer is capable of diproportionating Cu(I)X into Cu(O) and Cu(II)X2 where X is Cl, Br, or I.
    Type: Application
    Filed: August 3, 2007
    Publication date: December 30, 2010
    Applicant: The Trustees of the University of Pennsylvania
    Inventor: Virgil Percec
  • Patent number: 7763686
    Abstract: Polyalkenyl ether is produced by polymerizing alkenyl ether represented by the following general formula (I): CHR1?CH(OR2)??(I) wherein R1 represents a hydrogen atom or a methyl group, R2 represents a monovalent organic group, and R2 contains a silicon atom or at least one atom selected from the group consisting of elements from group 15 to group 17, in the presence of a halide of an element other than Al, or an organometallic compound of an element other than Al, and a nonionic oxygen-containing or nonionic nitrogen-containing organic compound.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: July 27, 2010
    Assignees: Canon Kabushiki Kaisha, Nippon Shokubai Co., Ltd.
    Inventors: Sadahito Aoshima, Ikuo Nakazawa, Koichi Sato, Masayuki Ikegami, Shokyoku Kanaoka, Tomohide Yoshida, Yasuhiro Matsuda, Arihiro Kanazawa
  • 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
  • Patent number: 7666958
    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: Grant
    Filed: March 24, 2006
    Date of Patent: February 23, 2010
    Assignees: Sachtleben Chomie GmbH, Studiengesellschaft Kohle MBM
    Inventors: Bernd Hirthe, Bernd Proft, Jochen Winkler, Udo Blumenthal, Gerhard Fink, Klaus Hauschild
  • Publication number: 20100010178
    Abstract: The present invention relates to the coupling of two polymer chains to give end group-functionalized polymers, the simultaneous precipitation of transition metals from polymer solutions and to the removal of halogen atoms from polymer chain ends.
    Type: Application
    Filed: October 29, 2007
    Publication date: January 14, 2010
    Applicant: Evonik Roehm Gmbh
    Inventors: Sven Balk, Gerd Löhden, Christine Trömer, Monika März, Christine Miess
  • 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: 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: 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: 7094823
    Abstract: Maghnia or Mostaganem bentonites, are activated by contacting the Maghnia or Mostaganem bentonite with an acid solution of selected concentration and then drying the Maghnia or Mostaganem bentonite to form an activated bentonite catalyst. This activated bentonite catalyst may be used to polymerize a vinyl, acrylic, cyclic ether, aldehyde, lactone or olefin monomer. In a further embodiment, a perflourinated amine or diamine is synthesized by contacting a Maghnia or Mostaganem bentonite with an acid solution of selected concentration, drying the Maghnia or Mostaganem bentonite, and absorbing a secondary amine with the Maghnia or Mostaganem bentonite to form a perflouroamide iodide salt. The perflouramide idodide salt can then be extracted with a polar solvent and neutralized by the use of a basic solution.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: August 22, 2006
    Inventors: Mohammed Belbachir, Abdelhak Bensaoula
  • Patent number: 6838486
    Abstract: Disclosed are nanocomposites made of guest metal nanoparticles and metal oxide sols made by mixing at least one metal alkoxide, at least one organosilane, at least one boron oxide compound, and a liquid. Also disclosed are dielectric composites containing a dielectric material such as a polymer and the nanocomposites.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: January 4, 2005
    Assignee: APS Laboratory
    Inventor: Hong-Son Ryang
  • Publication number: 20040054100
    Abstract: A process for producing polypropylene, the process comprising homopolymerising propylene or copolymerising propylene with one or more comonomers selected from ethylene and C4 to C10 1-olefins in the presence of a metallocene catalyst system comprising (a) a metallocene catalyst of general formula R″(XRm)(Cp′R′n)M2, wherein X is a cyclopentadienyl moiety (Cp) or a heteroatom, Cp′ is a substituted or unsubstituted fluorenyl ring; each R is independently hydrogen or hydrocarbyl having 1 to 20 carbon atoms in which O≦m≦4; each R′ is independently hydrocarbyl having 1 to 20 carbon atoms in which 0≦n≦8; R″ is a bridge which comprises a C1-C20 alkylene radical, a dialkyl germanium or silicon or siloxane, or an alkyl phosphine or amine radical, which bridge is substituted or unsubstituted, M is a Group IVB transition metal, vanadium or a lanthanide metal and each Q is hydrocarbyl having 1 to 20 carbon atoms or halogen, and (b) a cocatalyst which activates the catalyst c
    Type: Application
    Filed: October 14, 2003
    Publication date: March 18, 2004
    Inventors: Guy Debras, Marc Dupire, Jacques Michel
  • 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: 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: 6610802
    Abstract: The present invention relates to a process for synthesis of polymer compositions with reduced catalyst content, wherein ethylenically unsaturated monomers containing less than 0.5 wt % of ethylenically unsaturated monomers with at least one carboxylic group, sulfonic acid group and/or at least one phosphonic acid group relative to the total weight of the ethylenically unsaturated monomers are polymerized by means of initiators containing a transferable group of atoms and of one or more catalysts comprising at least one transition metal in the presence of ligands which can form a coordination compound with the metal catalyst or catalysts and, after the polymerization, the catalyst contained in the polymer is at least partly separated. For this purpose, the polymer composition is filtered, after the polymerization, in the presence of at least one filter aid which contains at least 0.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: August 26, 2003
    Assignee: RohMax Additives GmbH
    Inventors: Sebastian Roos, Boris Eisenberg, Carolin Harpe
  • Patent number: 6610400
    Abstract: The disclosed invention relates generally to sizing compositions, methods and apparatus for cleaning sized fiber glass strands, yarns and fabric without the use of high temperature thermal processes. More specifically, the invention relates to sizing compositions comprising a photocatalytically degradable organic material and a photocatalyst material, and methods and apparatus for cleaning photocatalytically degradable organic materials from the surface of the fiber glass strand.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: August 26, 2003
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Bruce E. Novich, Caroline S. Harris, Kami Lammon-Hillnski
  • Publication number: 20030158354
    Abstract: The present invention relates to a process for preparing high density polyethylene in the gas phase comprising contacting ethylene or a mixture comprising ethylene and one or more alpha-olefins with a chromium oxide catalyst supported on a granular or microspherical refractory oxide in a fluidised bed reactor in the presence of oxigen. The present invention further relates to a process for controlling the density of high density polyethylene prepared in the gas phase comprising contacting ethylene or a mixture comprising ethylene and one or more alpha-olefins with a chromium oxide catalyst supported on a granular or microspherical refractory oxide in a fluidised bed reactor in the presence of oxigen.
    Type: Application
    Filed: March 21, 2003
    Publication date: August 21, 2003
    Inventor: Jean-Jacques Kuhlburger
  • Patent number: 6555640
    Abstract: Process that is capable of synthesizing a metal-containing resin having a good antifouling property in a short period of time without having such problems associated with the synthesis as gelation. The process for producing a metal-containing resin by conducting a copolymerization reaction of a monomer mixture (A) comprising 1 to 50% by weight of a carboxyl group-containing polymerizable unsaturated monomer (a) and 50 to 99% by weight of other polymerizable unsaturated monomer (b) in an organic solvent in the presence of water and an oxide or hydroxide of a metal having a valency of at least 2, wherein the amount of water is 1 to 30 parts by weight based on 100 parts by weight of the monomer mixture (A), and the formation of a metal carboxylate bond occurs together with the copolymerization of the monomer mixture (A); and an antifouling coating composition containing, as an active constituent, a metal-containing resin obtained by the production process.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: April 29, 2003
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Kei Ito, Chikara Kawamura
  • Publication number: 20030068439
    Abstract: This invention provides a transparent, paramagnetic polymer composition in which a polymer is complexed with sufficient rare earth ions, particularly ions selected from ions in the group of elements 64-69, to provide a polymer with a magnetic mass susceptibility greater than 20×10−6 emu/g measured at 298° K.
    Type: Application
    Filed: January 16, 2002
    Publication date: April 10, 2003
    Inventors: David M. Dean, Charles J. Molnar
  • Publication number: 20030060577
    Abstract: Transition metal superoxides of formula M(O2)n, where M is a transition metal and n is equal to the valence of M, may be used as initiators for free radical polymerization, optionally, under conditions of living polymerization, with or without chain transfer agents. Polymers produced have a narrow molecular weight distribution and low polydispersity indexes when chain transfer agents and/or molecular weight controlling agents are used.
    Type: Application
    Filed: March 20, 2002
    Publication date: March 27, 2003
    Applicant: Rensselaer Polytechnic Institute
    Inventors: Brian C. Benicewicz, Subbareddy Kanagasabapathy, Arumugam Sudalai
  • Patent number: 6518375
    Abstract: A catalyst for the production of an ethylene polymer comprising a specific trivalent alkyl chromium compound, an inorganic oxide solid and optionally an organoaluminum compound (first catalyst), a catalyst for the production of an ethylene polymer comprising the specific trivalent alkyl chromium compound, a specific tetravalent alkyl chromium compound and an inorganic oxide solid (second catalyst) and a process for producing an ethylene polymer using those catalysts. The first catalyst of the present invention does not cause deterioration with the passage of time, is stable to heat and light, has greatly improved activity and can efficiently produce an ethylene copolymer with &agr;-olefin.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: February 11, 2003
    Assignee: Japan Polyolefins Co., Ltd.
    Inventors: Takashi Monoi, Haruhiko Ikeda, Hidenobu Torigoe
  • Patent number: 6441110
    Abstract: A process for preparing halogen-free, reactive polyisobutene having a terminal double bond content of more than 50 mol % and an average molecular weight Mn of 280-10000 dalton by the cationic polymerization in the liquid phase of isobutene or hydrocarbon mixtures comprising isobutene comprises polymerizing at from −30° C. to +40° C. in the presence of a heterogeneous polymerisation catalyst comprising one or more oxides of the elements of transition groups V and VI of the Periodic Table of the Elements or in the presence of a heterogeneous polymerization catalyst comprising one or more oxidic compounds of one or more elements of transition groups V and VI of the Periodic Table of the Elements supported on a non-zeolitic oxidic support material which is not an oxygen-containing zirconium compound, the catalyst not containing a technically effective amount of halogen.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: August 27, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Christoph Sigwart, Thomas Narbeshuber, Karsten Eller, Manfred Barl, Rolf Fischer, Eugen Gehrer
  • Patent number: 6433237
    Abstract: A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) (i) a halogen-containing iron compound or (ii) an iron-containing compound and a halogen-containing compound, (b) a silyl phosphonate, and (c) an organoaluminum compound.
    Type: Grant
    Filed: February 19, 2001
    Date of Patent: August 13, 2002
    Assignee: Bridgestone Corporation
    Inventor: Steven Luo
  • Patent number: 6403746
    Abstract: This invention concerns a method for preparation of poly(meth)acrylate composition, in which ethylenically unsaturated monomers are polymerized by means of initiators that have a transferable atomic group, and one or more catalysts that include at least one transition metal, in the presence of ligands that can form a coordination compound with the metallic catalyst(s) to form polymers, where ethylenically unsaturated monomers that contain 50-100 wt %, with respect to the total weight of the ethylenically unsaturated monomers, (meth)acrylates of formula (I) where R means hydrogen or methyl, R1 means a linear or branched alkyl residue with 6-40 carbon atoms, R2 and R3 independently mean hydrogen or a group of the formula—COOR′, where R′ is hydrogen or a linear or branched alkyl residue with 6-40 carbon atoms, is polymerized in the presence of 5-95 wt % mineral oil, with respect to the total weight of the composition.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: June 11, 2002
    Assignee: RohMax Additives GmbH
    Inventors: Sebastian Roos, Joseph Martin Bollinger, Markus Scherer, Boris Eisenberg
  • Patent number: 6403745
    Abstract: This invention concerns gradient copolymers, that are obtainable by polymerizing a mixture of olefinically unsaturated monomers that consist of a) 0 to 40% by weight of one or more ethylenically unsaturated ester compounds of formula (I) where R is hydrogen or methyl, R1 means a linear or branched alkyl residue with 1 to 5 carbon atoms, R2 and R3 independently represent hydrogen or a group of the formula —COOR′, where R′ means hydrogen or an alkyl group with 1 to 5 carbon atoms, b) 10 to 98% by weight of one or more ethylenically unsaturated ester compounds of formula (II) where R is hydrogen or methyl, R4 means a linear or branched alkyl residue with 6 to 15 carbon atoms, R5 and R6 independently are hydrogen or a group of the formula —COOR″, where R″ means hydrogen or an alkyl group with 6 to 15 carbon atoms, c) 0 to 80% by weight of one or more ethylenically unsaturated ester compounds of formula (III) where R is hy
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: June 11, 2002
    Assignee: RohMax Additives GmbH
    Inventors: Markus Scherer, Joseph Martin Bollinger, Joan Souchik
  • Publication number: 20020055587
    Abstract: Adhesive compositions comprising (a) adhesive polymers or copolymers prepared from monomers selected from the group consisting of styrene, butadiene, acrylonitrile, ethylene, vinyl acetate, acrylic acid, esters of acrylic acid, methacrylic acid and esters of methacrylic acid or combinations thereof; and (b) from 1 to 55% on a dry weight basis of a polymeric additive comprising a low molecular weight polymer having a number average molecular weight of 20,000 or less and which comprises polymerized units of at least one ethylenically unsaturated monomer and 5 weight percent or less of a polymerized acid-containing monomer. In preferred form, the polymeric additive is polymerized in the presence of a metal chelate chain transfer agent. In certain embodiments, the polymeric additive has a midpoint Tg of at least 0° C. or greater. Further embodiments of the present invention include methods for forming the polymeric additive in situ in the adhesive composition.
    Type: Application
    Filed: September 12, 2001
    Publication date: May 9, 2002
    Inventors: Willie Lau, Kim Sang Ho, Paul Ralph Van Rheenen
  • Patent number: 6348554
    Abstract: The invention concerns a method for preparation of a liquid polymer composition, where ethylenically unsaturated monomers are polymerized by means of initiators that have a transferable atomic group, and one or more catalysts that contain at least one transition metal, in the presence of ligands that can form a coordination compound with the metallic catalysts, the catalyst is oxidized after the polymerization and then the catalyst is separated by filtration, where the composition contains a solvent with a dielectric constant less than or equal to 4.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: February 19, 2002
    Assignee: RohMax Additives GmbH
    Inventors: Sebastian Roos, Boris Eisenberg, Michael Mueller
  • Publication number: 20020016422
    Abstract: In the process for the preparation of vinylsilanes by reacting acetylenic hydrocarbons with silanes which have at least one silicon-bonded hydrogen atom in the liquid phase in the presence of a catalyst, the silane is added to the liquid phase. In particular, the reaction is carried out at superatmospheric pressure, and the spent acetylenic hydrocarbon is replenished during the reaction while maintaining a pressure which is constant during the entire reaction.
    Type: Application
    Filed: July 11, 2001
    Publication date: February 7, 2002
    Inventors: Thomas Preiss, Holger Friedrich, Jochem Henkelmann
  • Publication number: 20020004566
    Abstract: A novel process for the polymerization of olefins is provided. The process involves contacting at least one olefin with at least one metallocene catalyst in the presence of a specified compound that results in the production of polymeric products having a narrower molecular weight distribution. Also provided is a process for narrowing the molecular weight distribution of a polyolefin comprising contacting an olefin, at least one metallocene catalyst and a compound specified herein. Further provided are novel polyolefins, and films and articles produced therefrom.
    Type: Application
    Filed: August 22, 2001
    Publication date: January 10, 2002
    Inventors: Randal Ray Ford, Richard Kingsley Stuart
  • Patent number: 6316553
    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 treated solid oxide compound, and at least one organoaluminum compound.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: November 13, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Kathy S. Collins, Marvin M. Johnson, James L. Smith, Elizabeth A. Benham, Gil R. Hawley, Christopher E. Wittner, Michael D. Jensen
  • Patent number: 6316235
    Abstract: Polymer particles are formed containing molecular memory recognition sites and magnetically susceptible components. The particles are prepared by co-polymerizing one or more monomers and a cross-linking agent in the presence of at least one imprint molecule and at least one magnetically susceptible component such as iron oxide or nickel oxide, and removing the imprint molecule to form molecular memory recognition sites. The particles are also prepared by co-polymerizing the monomer and cross-linking agent in the presence of the imprint molecule to produce particles, removing the imprint molecule and associating magnetically susceptible components with the particles. The particles may also be prepared containing selective adsorbents such as cells or antibodies. The particles are used for selective adsorption of a product such as separating and resolving two different enantiomeric forms due to one of the forms adsorbing to a memory recognition site created by using the form as an imprint molecule.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: November 13, 2001
    Assignee: IGEN, Inc.
    Inventors: Klaus Mosbach, Dario Kriz, Richard J. Ansell
  • Publication number: 20010014724
    Abstract: Process for the manufacture of a composition comprising ethylene polymers, in at least two polymerization reactors connected in series, according to which, in a first reactor, from 30 to 70% by weight with respect to the total weight of the composition of an ethylene homopolymer (A) having a melt flow index MI2 of 5 to 1000 g/10 min is formed and, in a subsequent reactor, from 30 to 70% by weight with respect to the total weight of the composition of a copolymer of ethylene and of hexene (B) having a melt flow index MI5 of 0.01 to 2 g/10 min is formed. The compositions obtained by this process exhibit a good compromise between the processing properties and the mechanical properties, which renders them capable of being used in the manufacture of articles shaped by extrusion and extrusion blow-molding, such as films and pipes.
    Type: Application
    Filed: March 16, 2001
    Publication date: August 16, 2001
    Applicant: SOLVAY POLYOLEFINS EUROPE-BELGIUM
    Inventors: Michel Promel, Bruno Moens
  • Patent number: 6265501
    Abstract: A process for treatment of metathesis catalysts for olefins comprises sending the particles of catalysts through at least one vibratory helicoidal conveyor, subject the particles over at least a portion of their path and preferably over a large portion of their path to a temperature profile, and bringing the particles into contact with at least one fluid over at least a portion of their path. A vibratory helicoidal lifting device (12) makes it possible to regenerate metathesis catalysts for olefins: it comprises a combustion zone (14) and a calcination zone (15), as well as a preheating zone, a zone for stripping hydrocarbons and a zone for cooling the catalyst.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: July 24, 2001
    Assignee: Institut Francais du Petrole
    Inventors: Dominique Commereuc, Hélène Olivier, Lucien Saussine
  • Patent number: 6242543
    Abstract: A process for the polymerization of ethylene and optionally &agr;-olefins to form ethylene homopolymer or copolymers having a broad molecular weight distribution, comprising polymerization of 100-80 wt. % of ethylene and 0-20 wt. % of comonomer in the presence of two independent, simultaneously present catalysts A and B, wherein catalyst A, deposited on an inorganic support, comprises chromium in a predominantly oxidant state of 2 and catalyst B comprises a bis-cyclopentadienyl chromium compound reacted with an inorganic support.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: June 5, 2001
    Assignee: Borealis A/S
    Inventors: Arild Follestad, Richard Blom, Ivar Martin Dahl, Klaus-Joachim Jens, Svein Staal Eggen
  • Patent number: 6225421
    Abstract: Process for the manufacture of a composition comprising ethylene polymers, in at least two polymerization reactors connected in series, according to which, in a first reactor, from 30 to 70% by weight with respect to the total weight of the composition of an ethylene homopolymer (A) having a melt flow index MI2 of 5 to 1000 g/10 min is formed and, in a subsequent reactor, from 30 to 70% by weight with respect to the total weight of the composition of a copolymer of ethylene and of hexene (B) having a melt flow index MI5 of 0.01 to 2 g/10 min is formed. The compositions obtained by this process exhibit a good compromise between the processing properties and the mechanical properties, which renders them capable of being used in the manufacture of articles shaped by extrusion and extrusion blow-molding, such as films and pipes.
    Type: Grant
    Filed: August 20, 1998
    Date of Patent: May 1, 2001
    Assignee: Solvay Polyolefins Europe-Belgium (Societe Anonyme)
    Inventors: Michel Promel, Bruno Moens
  • Publication number: 20010000035
    Abstract: A process for the reaction of an organic compound in the presence of a catalyst comprising, as active metal, ruthenium alone or together with at least one Group Ib, VIIb, or VIIIb metal in an amount of from 0.01 to 30 wt %, based on the total weight of the catalyst, applied to a support, wherein from 10 to 50% of the pore volume of the support comprises macropores having a pore diameter in the range of from 50 nm to 10,000 nm and from 50 to 90% of the pore volume of the support comprises mesopores having a pore diameter in the range of from 2 to 50 nm, the sum of said pore volumes being 100%, and said catalyst as such.
    Type: Application
    Filed: November 30, 2000
    Publication date: March 15, 2001
    Inventors: Thomas Ruhl, Boris Breitscheidel, Jochem Henkelmann, Andreas Henne, Rolf Lebkucher, Konard Knoll, Paul Naegele, Hermann Gausepohl, Sabine Weiguny, Norbert Niessner
  • Patent number: 6111037
    Abstract: An amorphous aluminophosphate composition is provided which exhibits a microstructure of sheets and spheres of silica-modified aluminophosphate. Also provided is a method for preparing the composition comprising mixing an aqueous solution containing aluminum ions, phosphate ions and silica ions, with a neutralizing solution, wherein the mixing is conducted with sufficient shear to produce on a microlevel, sheets of silica-modified aluminophosphate and spheres of silica-modified aluminophosphate. A polymerization catalyst and a polymerization process are also provided.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: August 29, 2000
    Assignee: Chevron Chemical Company LLC
    Inventors: Pamela R. Auburn, Theresa A. Pecoraro, Ignatius Y. Chan
  • Patent number: 6077809
    Abstract: A novel high-porosity adsorbent material for selective adsorption of fluoride ions, arsenic ions and phosphate ions as well as a method for the preparation thereof are disclosed. The adsorbent material consists of a porous carrier material such as crosslinked polyacrylate resin beads and a crystalline hydrous zirconium oxide impregnating the pores of the carrier in the monoclinic or cubic crystal form.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: June 20, 2000
    Assignee: Japan as represented by Director General of Agency of Industrial Science and Technology
    Inventors: Toshishige Suzuki, Hideyuki Matsunaga, Toshiro Yokoyama
  • Patent number: 5965675
    Abstract: A polymerization process is provided comprising contacting under polymerization conditions a catalyst, a taming agent, ethylene and optionally a comonomer, wherein the catalyst comprises chromium oxide, titanium oxide and an inorganic refractory oxide, wherein the taming agent is selected from the group consisting of water, alcohols, aldehydes, ketones, esters, and organic acids and mixtures thereof. The process is especially suited for polymerizing ethylene resins suitable for blow molding use.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: October 12, 1999
    Assignee: Chevron Chemical Company
    Inventors: Gene E. Kellum, Robert L. Batchelor
  • Patent number: 5962608
    Abstract: In one embodiment, the present invention relates to a polymer prepared from a mixture containing a polymerization material and a polycondensation product of a partially hydrolyzed chelated metal oxide precursor. In another embodiment, the present invention relates to a process for making a polymer involving contacting a polymerization material with a metal oxide sol comprising a liquid and a polycondensation product of a partially hydrolyzed chelated metal oxide precursor to form a mixture and at least one of polymerizing and curing the mixture of the polymerization material and the polycondensation product.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: October 5, 1999
    Assignee: Reliance Electric Industrial Co.
    Inventors: Hong-Son Ryang, Young Jin Chung, Joseph T. Snyder, II, An-Min Jason Sung