Contains Non-transition Elemental Metal, Hydride Thereof, Or Carbon To Non-transition Metal Atom Bond Patents (Class 526/97)
  • 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: 8182975
    Abstract: A positive resist composition, includes: (A) a resin that has a group having absorption at 248 nm at a main chain terminal of the resin (A), and a pattern forming method uses the composition.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: May 22, 2012
    Assignee: FUJIFILM Corporation
    Inventor: Shuji Hirano
  • Publication number: 20110144290
    Abstract: The present invention provides polymerization catalyst compositions employing novel heterodinuclear metallocene compounds. Methods for making these new dinuclear metallocene compounds and for using such compounds in catalyst compositions for the polymerization of olefins are also provided.
    Type: Application
    Filed: February 24, 2011
    Publication date: June 16, 2011
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Rex E. Murray, Kumudini C. Jayaratne, Qing Yang, Joel L. Martin, Gary L. Glass
  • Patent number: 7566760
    Abstract: The invention relates to a method for the production of aqueous polymer dispersions, by the polymerisation of one or more olefins in aqueous media in the presence of dispersing agents and optionally organic solvents, characterised in that the polymerisation of the olefin(s) is catalysed by means of one or more complex compounds of general formula (I), where at least one of the groups R1 to R9 must be in the form of a group of the following general formula (II) where Z=an electron-withdrawing group and n=a whole number from 1 to 5.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: July 28, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Mubarik Mahmood Chowdhry, Markus Schmid, Peter Preishuber-Pfluegl, Xavier Sava, Horst Weiss, Stefan Mecking, Martin Zuideveld, Florian M. Bauers
  • Publication number: 20080312389
    Abstract: The invention is directed to a process for the preparation of a catalyst component wherein a compound with formula Mg(OAlk)xCly wherein x is larger than 0 and smaller than 2, y equals 2-x and each Alk, independently represents an alkyl group, is contacted with a titanium tetraalkoxide and/or an alcohol in the presence of an inert dispersant to give an intermediate reaction product and wherein the intermediate reaction product is contacted with titanium tetrachloride in the presence of an internal donor. The invention also relates to a polymerization catalyst comprising the catalyst component and furthermore the invention relates to the polymerization of an olefin in the presence of the polymerization catalyst comprising the catalyst component.
    Type: Application
    Filed: November 11, 2005
    Publication date: December 18, 2008
    Inventors: Yves Johann Elizabeth Ramjoie, Sergei Andreevich Sergeev, Mark Vlaar, Vladimir Aleksandrovich Zakharov, Gennadii Dimitrievich Bukatov
  • Publication number: 20080293895
    Abstract: The present invention relates to a supported, treated catalyst system and its use in a process for polymerizing olefin(s). More particularly, it provides a supported, treated catalyst system produced by a process comprising the steps of: (a) forming a supported bimetallic catalyst system comprising a first catalyst component and a metallocene catalyst compound; and (b) contacting the supported bimetallic catalyst system of (a) with at least one methylalumoxane-activatable compound.
    Type: Application
    Filed: June 27, 2008
    Publication date: November 27, 2008
    Applicant: UNIVATION TECHNOLOGIES, LLC
    Inventor: Sun-Chueh Kao
  • 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
  • Publication number: 20040167015
    Abstract: Broad molecular weight polyethylene and polyethylene having a bimodal molecular weight profile can be produced with chromium oxide based catalyst systems employing alkyl silanols. The systems may also comprise various organoaluminum compounds. Catalyst activity and molecular weight of the resulting polyethylene may also be tuned using the present invention.
    Type: Application
    Filed: January 22, 2004
    Publication date: August 26, 2004
    Inventors: Kevin J. Cann, Minghui Zhang, John H. Moorhouse, Maria A. Apecetche
  • Patent number: 6750302
    Abstract: A polymerization catalyst is disclosed, wherein the catalyst comprises: (a) a metallocene of Ti, Zr or Hf, (b) an organoaluminum compound, and (c) a treated solid oxide support which comprises fluorine and chromium.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: June 15, 2004
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Kathy S. Collins, Elizabeth A. Benham, Anthony P. Eaton, Michael D. Jensen, Joel L. Martin, Gil R. Hawley, Eric T. Hsieh
  • Patent number: 6730752
    Abstract: A composition including polyalphaolefins that function as drag reducing agents and a process for the preparation of polyalphaolefins that function as drag reducing agents are disclosed. The process includes contacting alpha olefin monomers with a catalyst system, which includes a catalyst and an activator (co-catalyst) in a reactant mixture. The catalyst is a transition metal catalyst, preferably titanium trichloride, and the co-catalyst may include an alkylaluminoxane, alone or in combination, with a dialkylaluminum halide or a halohydrocarbon. The polymerization of the alpha olefin monomers produces a non-crystalline, ultra-high molecular weight polyalphaolefin having an inherent viscosity of at least 10 dL/g.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: May 4, 2004
    Assignee: Energy & Environmental International, L.C.
    Inventors: Gerald B. Eaton, Michael J. Monahan, Robert J. Tipton
  • Patent number: 6699813
    Abstract: A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) an lanthanide compound, (b) an alkylating agent, (c) a nickel-containing compound, and optionally (d) a halogen-containing compound, with the proviso that the halogen-containing compound must be present where none of the lanthanide compound, the alkylating agent, and the nickel-containing compound contain a labile halogen atom.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: March 2, 2004
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Yoichi Ozawa, Koji Masaki, David Lawson
  • Patent number: 6653416
    Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted fluorided solid oxide compound.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: November 25, 2003
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Kathy S. Collins, James L. Smith, Elizabeth A. Benham, Marvin M. Johnson, Anthony P. Eaton, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
  • Patent number: 6613852
    Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted fluorided silica-alumina.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: September 2, 2003
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Kathy S. Collins, Anthony P. Eaton, Elizabeth A. Benham, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
  • 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: 6548441
    Abstract: This invention provides a catalyst composition for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises an organometal compound, an organoaluminum compound, and a treated solid oxide compound comprising nickel, a halogen, and a solid oxide compound.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: April 15, 2003
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Kathy S. Collins, Anthony P. Eaton, Elizabeth A. Benham, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
  • 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
  • Publication number: 20020169252
    Abstract: Superabsorbent polymers having a slow rate of absorption, and a process for their preparation. The superabsorbent polymer has a slow rate of absorption, is crosslinked with a covalent crosslinking agent and the metal of a polyvalent metal coordination compound, has the metal of the coordination compound distributed essentially homogeneously throughout the polymer, and has an Absorption Rate Index of at least about 5 minutes. Prepare water-swellable, water-insoluble polymer particles having a slow rate of water absorption by polymerizing a monomer in the presence of a covalent crosslinking agent and a polyvalent metal coordination compound under conditions such that there is formed a polymer having reversible cationic crosslinks and such that the metal is distributed essentially homogeneously throughout the polymer particles.
    Type: Application
    Filed: December 7, 1999
    Publication date: November 14, 2002
    Inventor: LARRY R. WILSON
  • Patent number: 6475945
    Abstract: The present invention relates to functionalized catalyst supports that are useful in the formation of supported polymerization catalysts, supported catalysts derived from such functionalized catalyst supports, methods for preparing such functionalized catalyst supports and supported catalysts, and polymerization processes utilizing such supported catalysts. The functionalized catalyst support comprises a particulated support material having chemically bonded thereto a plurality of aluminum-containing groups derived from a non-ionic Lewis acid, said aluminum-containing groups: containing at least one fluoro-substituted hydrocarbyl ligand containing from 1 to 20 carbons, said hydrocarbyl ligand being bonded to aluminum, and being bonded to said support material, optionally through a bridging moiety, said composition being capable of activating a Group 3-10 metal complex for the addition polymerization of one or more addition polymerizable monomers.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: November 5, 2002
    Assignee: The Dow Chemical Company
    Inventors: Edmund M. Carnahan, Grant B. Jacobsen
  • Patent number: 6437061
    Abstract: The present invention relates to MgCl2.mROH.nH2O adducts, where R is a C1-C10 alkyl, 2≦m≦4.2, 0≦n≦0.7 , characterized by an X-ray diffraction spectrum in which, in the range of 2&thgr; diffraction angles between 5° and 15°, the three main diffraction lines are present at diffraction angles 2&thgr; of 8.8±0.2°, 9.4±0.2° and 9.8±0.2°, the most intense diffraction lines being the one at 2&thgr;=8.8±0.2°, the intensity of the other two diffraction lines being at least 0.2 times the intensity of the most intense diffraction line. Catalyst components obtained from the adducts of the present invention are capable to give catalysts for the polymerization of olefins characterized by enhanced activity and stereospecificity.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: August 20, 2002
    Assignee: Basell Technology Company BV
    Inventors: Mario Sacchetti, Gabriele Govoni, Anna Fait
  • Patent number: 6437063
    Abstract: The present invention concerns a process for producing a propylene polymer nucleated with a polymeric nucleating agent containing vinyl compound units. The method comprises modifying a catalyst by polymerizing a vinyl compound in the presence of said catalyst in a medium, which does not essentially dissolve the polymerized vinyl compound, and by continuing the polymerization of the vinyl compound until the concentration of unreacted vinyl compounds is less than about 0.5 wt-%. The thus obtained modified catalyst composition is used for polymerizing propylene optionally together with comonomers to produce in the presence of said modified catalyst composition. Modification of the catalyst according to the present invention will reduce production costs and provide highly reliable catalyst activity.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: August 20, 2002
    Assignee: Borealis Technology Oy
    Inventors: Amir Karbasi, Pauli Leskinen, Pirjo J{umlaut over (aa)}skeläinen, Bo Malm, Päivi Pitkänen, Mika Härkönen, John Haugen
  • Patent number: 6395666
    Abstract: This invention provides catalyst composition for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises as organometal compound, as organoaluminum compound, and a fluorided solid oxide compound.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: May 28, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Kathy S. Collins, James L. Smith, Elizabeth A. Benham, Marvin M. Johnson, Anthony P. Eaton, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
  • Patent number: 6365685
    Abstract: The present invention relates to a process for the preparation of random copolymers of propylene with c2-c10&agr;-olefins, carried out in the presence of a catalyst comprising: A) A solid component comprising a titanium compound supported on mgcl2 in active form and an electron-donor compound; b) An alkyl-al compound, and c) An electron-donor compound selected from the group of 1,3-diethers. The copolymers obtained using the said process show, for an equivalent content of &agr;-olefin, a lower content of xylene-soluble fractions when compared with the copolymers obtained with the catalysts of the prior art.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: April 2, 2002
    Assignee: Remall North America
    Inventors: Gianni Collina, Giampiero Morini
  • Patent number: 6355594
    Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted fluorided silica-alumina.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: March 12, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Kathy S. Collins, Anthony P. Eaton, Elizabeth A. Benham, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
  • Patent number: 6284851
    Abstract: In a process for preparing polymers based on monomers having a C═C double bond by homopolymerization or copolymerization of these monomers in the presence of a catalyst system comprising a metallocene complex A) and a compound B) capable of forming metallocenium ions and, if desired, an organometallic compound of main group I, II or III of the Periodic Table of the Elements C), the metallocene complex A) used is a compound of the formula (I) where the substituents and indices have the following meanings: R1 to R11 are hydrogen, C1-C10-alkyl, 5- to 7-membered cycloalkyl which may in turn bear C1-C6-alkyl groups as substituents, C6-C15-aryl or arylalkyl, where two adjacent radicals R1 to R8 may together form a cyclic group having from 4 to 15 carbon atoms, or Si(R12)3, where R12 is C1-C10-alkyl, C6-C15-aryl or C3-C10-cycloalkyl, M is a metal of transition groups III to VI of the Periodic Table of the Elements or a metal of the lanthanide series, X are identical or different and are hy
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: September 4, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Josef Wünsch, Hans-Herbert Brintzinger, Nicole Schneider, Marc Prosenc
  • Patent number: 6268453
    Abstract: A solid cocatalyst is prepared by reacting a suitable support base with an organoaluminum compound and then reacting that product with an activity promoting amount of water. The solid cocatalyst can be combined with a polymerization catalyst to form a catalyst system useful for the polymerization of olefins.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: July 31, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Alexander Köppl, Helmut G. Alt, Syriac J. Palackal, M. Bruce Welch
  • Patent number: 6258886
    Abstract: The invention provides solid supported anionic catalysts, suitable for gas phase anionic polymerization of conjugated diene monomers, that are useful for anionically producing very high molecular weight branched diene polymers, such as styrene butadiene rubber, polybutadiene rubber, polyisoprene rubber, and the like. The catalysts comprise a metalatable particle, such as a bound rubber, a thermoplastic polymer or a cured elastomer, that is multiply metalated with Group IA alkali metal atoms. The multi-branched diene polymers obtained by gas phase anionic polymerization employing the catalysts exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles, such as tires, that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: July 10, 2001
    Assignee: Bridgestone Corporation
    Inventors: William M. Cole, William L. Hergenrother, Theodore J. Knutson, Georg G. A. Böhm
  • Patent number: 6255406
    Abstract: The invention provides solid supported anionic catalysts, suitable for gas phase anionic polymerization of conjugated diene monomers, that are useful for anionically producing very high molecular weight branched diene polymers, such as styrene butadiene rubber, polybutadiene rubber, polyisoprene rubber, and the like. The catalysts comprise a metalatable particle, such as a bound rubber, a thermoplastic polymer or a cured elastomer, that is multiply metalated with Group IA alkali metal atoms. The multi-branched diene polymers obtained by gas phase anionic polymerization employing the catalysts exhibit desirable properties, such as an extremely high molecular weight, a controlled molecular weight distribution, Tg and vinyl content, and the ability to readily absorb hydrocarbon solvents and oils. The polymers are easily compounded to form vulcanizable elastomeric compounds and articles, such as tires, that have excellent resistance to wear and tear and exhibit reduced hysteresis properties.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: July 3, 2001
    Assignee: Bridgestone Corporation
    Inventors: William M. Cole, William L. Hergenrother, Theodore J. Knutson, Georg G. A. Böhm
  • Patent number: 6013595
    Abstract: A catalytic solid for (co)polymerization of ethylene, includes (a) at least one inorganic support; (b) at least one transition metal metallocene having a formula (C.sub.p).sub.a (C.sub.p ').sub.h MX.sub.x Z.sub.z, in which C.sub.p and C.sub.p each denote a cyclopentadienyl, indenyl, or fluorenyl radical or a substituted derivative of such a radical, coordinated to the central atom M, optionally the groups C.sub.p and C.sub.p are linked via a covalent bridge, M denotes the at lease one transition metal, which is selected from the group consisting of scandium, titanium, zirconium, hafnium and vanadium, a, b, x and z denote integers such that (a+b+x+z)=m, x>0, z.gtoreq.0 and a and/or b.noteq.0, m denotes the valency of the at least one transition metal M, X denotes a halogen, and Z denotes a hydrocarbon radical which may optionally comprise oxygen or a silyl radical of formula (--R.sub.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: January 11, 2000
    Assignee: Solvay (Societe Anonyme)
    Inventors: Olivier Lhost, Nicola Zandona
  • Patent number: 5916982
    Abstract: A process for the production of polyolefins is provided which comprises polymerizing or copolymerizing olefins in the presence of a catalyst composition which includes a catalyst component (I) resulting from mutual contact of sub-components (A) and (B), and a catalyst component (II). Sub-component (A) is of the formulaR.sup.1.sub.p Me.sup.1 X.sup.1.sub.4-p and/or R.sup.1.sub.2 Me.sup.1 X.sup.1'and sub-component (B) is a modified organoaluminum compound having Al--O--Al bonds. Catalyst component (II) is an admixture of sub-component (C), which is a transition metal elemental compound of Groups VII-VIII, and one or more of triethylaluminum, triisobutylaluminum, diethyl zinc, n-butyllithium, and butylmagnesiumchloride. The catalyst components (I) and/or (II) are contacted with a carrier during or after the preparation of the components (I) and/or (II).
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: June 29, 1999
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Osamu Nakazawa, Akira Sano, Kazuo Matsuura
  • Patent number: 5863854
    Abstract: A catalyst system for olefin polymerization, including a catalytic solid based on chromium deposited on a support containing silica, alumina and aluminium phosphate and a cocatalyst chosen from organoaluminium compounds. One of the essential characteristics of the invention is the combination of an organoaluminium compound as cocatalyst with a catalytic solid based on chromium deposited on a support containing silica, alumina and aluminium phosphate.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: January 26, 1999
    Assignee: Solvay Polyolefins Europe-Belgium (Societe Anonyme)
    Inventors: Abel Grosjean, Benoit Koch
  • Patent number: 5846895
    Abstract: A supported metallocene complex of a metal M selected from Ti, Zr or Hf, is prepared by a process comprising, in a first step, the reaction of an inorganic carrier containing hydroxyl groups with a compound (II) containing a cyclopentadienyl group and at least one alkoxysilane group reactive with said hydroxyl groups so as to chemically bind said cyclopentadienyl group to said carrier; and in a second step the reaction with a complex of said metal M capable of reacting with said supported cyclopentadienyl group without carrying out any intermediate metallation of the latter. This process is simple and convenient, and enables high concentrations of metal stably bound to the carrier, to be reached. The complex thus obtained can be used as solid component of a catalyst active in the polymerization of .alpha.-olefins, in the presence of a suitable co-catalyst, preferably consisting of an organo-oxygenated derivative of aluminum.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: December 8, 1998
    Assignee: Enichem S.p.A.
    Inventors: Liliana Gila, Antonio Proto, Evelina Ballato, Diego Vigliarolo, Gabriele Lugli
  • Patent number: 5786431
    Abstract: Novel chromium-containing compounds are prepared by forming a mixture of a chromium salt, a metal amide, and an ether. These novel chromium-containing, or chromium pyrrolide, compounds, with a metal alkyl and an unsaturated hydrocarbon, can be used as a cocatalyst system in the presence of an olefin polymerization catalyst system to produce a comonomer in-situ. The resultant polymer, although produced from predominately one monomer, has characteristics of a copolymer.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 28, 1998
    Assignee: Phillips Petroleum Company
    Inventors: William K. Reagen, Ted M. Pettijohn, Jeffrey W. Freeman, Elizabeth A. Benham
  • Patent number: 5652314
    Abstract: A process is provided for preparing a shape-shifted catalyst component comprising (1) contacting a dihydrocarbyloxide magnesium compound with carbon dioxide in the presence of a slurrying agent to form a slurry of a carboxylated dihydrocarbyloxide magnesium compound; (2) adding a filler to the slurry either before or after the carboxylation of step (1); (3) spray drying the slurry of step (2) to evaporate the slurrying agent and to produce solid particles of the carboxylated dihydrocarbyloxide magnesium compound incorporating the filler; and, optionally, (4) heating the solid particles to remove carbon dioxide to produce a shape-shifted dihydrocarbyloxide magnesium compound component. A catalyst system using the component and a polymerization process employing the catalyst system are also provided.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: July 29, 1997
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Burkhard Eric Wagner, Daniel Paul Zilker, Jr., Robert James Jorgensen
  • Patent number: 5459203
    Abstract: A catalyst system for the polymerization of alpha-olefins comprising a chromium-containing catalyst and an yttrium-containing catalyst wherein the yttrium-containing catalyst is represented by the formula (Cp.sub.2 YX.sub.x).sub.y .multidot.M.sub.z L.sub.n, wherein Cp is cyclopentadienyl or cyclopentadienyl substituted with an alkyl or alkyl silyl radical, X is a halogen, M is an alkali metal, L is a suitable electron donor ligand, x is 1 or 2, y is 1 or 2, z is 0 or 1, and n is a number corresponding to the value needed to form a stable complex, with the proviso that when y is 2, z and n are 0 is provided. Also disclosed is a polymerization process employing such a catalyst system, and novel olefin polymers. Polymers thus produced exhibit high bulk density and a broad molecular weight distribution.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: October 17, 1995
    Assignee: Phillips Petroleum Company
    Inventors: Rolf L. Geerts, Elizabeth A. Benham, Max P. McDaniel
  • Patent number: 5451645
    Abstract: Novel chromium-containing compounds are prepared by forming a mixture of a chromium salt, a metal amide, and an ether. These novel chromium-containing, or chromium pyrrolide, compounds, with a metal alkyl and an unsaturated hydrocarbon, can be used as a cocatalyst system in the presence of an olefin polymerization catalyst system to produce a comonomer in-situ. The resultant polymer, although produced from predominately one monomer, has characteristics of a copolymer.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: September 19, 1995
    Assignee: Phillips Petroleum Company
    Inventors: William K. Reagen, Ted M. Pettijohn, Jeffrey W. Freeman, Elizabeth A. Benham
  • Patent number: 5408015
    Abstract: Multimodal high-density ethylene polymers or copolymers (HDPE) of broad molecular weight distribution suitable for blow-molding and films are prepared with a chromium oxide catalyst mixed with a MgO-supported Ziegler catalyst, modified with an alkene and with alkyl aluminum hydride, and with an MgO additive.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: April 18, 1995
    Assignee: Mobil Oil Corporation
    Inventors: John T. Hsieh, Ann L. Pruden
  • Patent number: 5399622
    Abstract: A catalyst system for the polymerization of alpha-olefins comprising a chromium-containing catalyst and an yttrium-containing catalyst wherein the yttrium-containing catalyst is represented by the formula (Cp.sub.2 YX.sub.x).sub.y.M.sub.z L.sub.n, wherein Cp is cyclopentadienyl or cyclopentadienyl substituted with alkyl or alkyl silyl radical or radicals, X is a halogen, M is an alkali metal, L is a suitable electron donor ligand, x is 1 or 2, y is 1 or 2, z is 0 or 1, and n is a number corresponding to the value needed to form a stable complex, with the proviso that when y is 2, z and n are 0 is provided. Also disclosed is a polymerization process employing such a catalyst system, and novel olefin polymers. Polymers thus produced exhibit high bulk density and a broad molecular weight distribution.
    Type: Grant
    Filed: November 17, 1993
    Date of Patent: March 21, 1995
    Assignee: Phillips Petroleum Company
    Inventors: Rolf L. Geerts, Elizabeth A. Benham, Max P. McDaniel
  • Patent number: 5376612
    Abstract: Novel chromium-containing compounds, such as, for example, chromium pyrrolides, are prepared by forming a mixture of a chromium salt, a metal amide, and an electron pair donor solvent, such as, for example, an ether. These novel chromium-containing, or chromium pyrrolide, compounds can be used either unsupported or supported on an inorganic oxide support, with a metal alkyl and an unsaturated hydrocarbon, to trimerize, oligomerize, and/or polymerize olefins.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: December 27, 1994
    Assignee: Phillips Petroleum Company
    Inventors: William K. Reagen, Ted M. Pettijohn, Jeffrey W. Freeman
  • Patent number: 5350818
    Abstract: A process for producing a high density polyethylene resin which has a negligible n-paraffin content while having a melt index ratio of at least 75 by polymerizing ethylene with a minor amount of a diene in the presence of a supported organophosphorous modified vanadium-containing catalyst component. Vanadium-containing catalyst components useful with an organoaluminum cocatalyst for polymerizing ethylene with an aliphatic diene to produce high density resins having not only a low C.sub.10 -C.sub.32 n-paraffin content (characteristic of high molecular weight polymers having a narrow molecular weight distribution), but, surprisingly, also a melt index ratio desirable for melt blowing applications more characteristic of vanadium catalyzed polymers (which have relatively high n-paraffin content), are obtained by contacting an inert support material with an organoaluminum compound, an optional halogenating agent, a vanadium compound, and an organophosphorous compound.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: September 27, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Gerald D. Malpass, Jr.
  • Patent number: 5330949
    Abstract: A method for producing a polyolefin is disclosed which comprises polymerizing an .alpha.-olefin in the presence of a catalyst composition comprising (A) a solid catalyst component prepared by contacting (a) a solid component comprising a magnesium alkoxide and/or a magnesium salt of a fatty acid supported on an inorganic oxide composed of at least one member selected from the group consisting of oxides of elements belonging to Groups II, III and IV of the periodic table and/or a composite inorganic oxide containing at least one member selected from the group consisting of oxides of elements belonging to Groups II, III and IV of the periodic table, the inorganic oxide or composite inorganic oxide having a surface hydroxide concentration of 3 .mu.mol/m.sup.2 or less, (b) an electron donating compound and (c) a titanium halide, (B) an organic metal compound, and (C) an electron donating compound.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: July 19, 1994
    Assignee: Idemitsu Petrochemical Company, Ltd.
    Inventors: Hideo Funabashi, Akira Tanaka, Rikuo Ohnishi, Toshikazu Kasahara, Takashi Yamawaki
  • Patent number: 5330950
    Abstract: Ethylene polymers or copolymers having very broad molecular weight distributions in a broad range of melt-indicies are produced by using mixtures of MgO-supported Ziegler catalyst and a chromium oxide catalyst in which the usual poisoning of the catalysts does not occur.
    Type: Grant
    Filed: August 14, 1989
    Date of Patent: July 19, 1994
    Assignee: Mobil Oil Corporation
    Inventor: John T. T. Hsieh
  • Patent number: 5237025
    Abstract: A catalyst mixture is disclosed comprising (1) a particulate chromium-containing catalyst comprising inorganic oxide and chromium and (2) a particular type of particulate titanium-containing catalyst. Also disclosed is the use of this catalyst mixture to produce particularly novel olefin polymers.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: August 17, 1993
    Assignee: Phillips Petroleum Company
    Inventors: Elizabeth A. Benham, Max P. McDaniel
  • Patent number: 5166279
    Abstract: The present invention relates to a process for (co-)polymerizing ethylene in a gaseous phase, by means of a fluidized and/or mechanically stirred bed reactor, with the help of a catalyst comprising a chromium oxide and a titanium compound, supported on a refractory oxide and activated by a heat treatment. The process is characterized in that the catalyst is introduced into the reactor in the form of a dry powder consisting of particles free from prepolymer and the (co-)polymerization is carried out in the presence of an organoaluminium compound. The (co-)polymer thus obtained has substantially low catalyst residues, and an improved stress cracking resistance.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: November 24, 1992
    Assignee: BP Chemicals Limited
    Inventor: John G. Speakman
  • Patent number: 5114990
    Abstract: There is described a process for the production of pigment/plastic premixes characterized by homogeneous distribution of pigment in a polymer matrix. The invention is based on the polymerization of olefins carried out by means of a process using Ziegler catalyst. Significantly the polymerization occurs on the surface of the pigment particles, after the prior activation of the pigment particles.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: May 19, 1992
    Assignee: Felix Schoeller Jr. GmbH KG
    Inventor: Ralf-Burkhard Dethlefs
  • Patent number: 5091490
    Abstract: Silica supported high activity olefin polymerization catalysts, methods of producing the catalysts and methods of using the catalysts in the polymerization of olefins are provided. The methods of producing the catalysts each basically comprise contacting a particulate silica support impregnated with tungsten oxide with the soluble complex produced by heating a mixture of a metal dihalide with a transition metal compound to produce a solid, and then reacting the solid with an organoaluminum halide. The catalysts produced have improved productivities and are less soluble in polymerization media.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: February 25, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Gil R. Hawley, Simon G. Kukes, Robert L. Banks, deceased
  • Patent number: 5043514
    Abstract: A process for dimerizing ethylene comprising contacting ethylene with an insoluble solid catalyst and a cocatalyst, said catalyst having at least on the surface thereof hydrocarbyl ortho ester groups bonded to vanadium or titanium.
    Type: Grant
    Filed: May 5, 1988
    Date of Patent: August 27, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Douglas D. Klendworth, Paul D. Smith
  • Patent number: 5037908
    Abstract: An improved process for polymerizing butene-1 in the presence of a polymerization catalyst composed of (a) a catalyst component containing titanium and halogen as essential constituents and (b) an organometallic compound, wherein the improvement comprises bringing said catalyst component into contact with an activity inhibitor when said catalyst component is activated or after said catalyst component has been activated with said organometallic compound, and subsequently polymerizing butene-1.
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: August 6, 1991
    Assignee: Toa Nenryo Kogyo K.K.
    Inventors: Mamoru Tachikawa, Satoshi Ueki, Masato Sakuma, Makoto Miyazaki
  • Patent number: 5034364
    Abstract: An olefin, particularly alpha-olefin, polymerization catalyst composition, supported on a refractory oxide support comprises two chromium specie: (1) CrO.sub.3 or any chromium compound calcinable to CrO.sub.3 ; and (2) at least one silylchromate compound. The composition is prepared by sequentially depositing specie (1) and (2) onto the same support.
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: July 23, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Bohumil V. Kral, Grace O. Tsien, Chisung Wu
  • Patent number: 5032651
    Abstract: Olefinic polymer exhibiting high environmental stress crack resistance are produced by contacting the olefin charge stock in a single reactor with a compatible mix of two transition metal catalyst systems. One component of the catalyst system comprises chromium oxide supported on an aluminophosphate material. Hydrogen can be used as adjuvant for the hexavalent chromium component of the catalyst mixture. The second catalyst component consists essentially of a beta-stabilized tetrahydrocarbyl zirconium compound supported on inorganic support material. The catalysts can be premixed before use in the reactor, or can be added to the reactor separately. A suitable cocatalyst can be utilized.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: July 16, 1991
    Assignee: Phillips Petroleum Company
    Inventors: Max P. McDaniel, Paul D. Smith
  • Patent number: 5013802
    Abstract: A process for preparing an ethylene polymer by a two-stage polymerization of ethylene or ethylene and an .alpha.-olefin in an inert hydrocarbon at 50.degree.-100.degree. C. using a coordination polymerization catalyst containing a solid component and an organoaluminum compound, said solid component containing a transition metal compound, which process comprises:(a) in a first stage, producing 10-90% by weight based on the total polymer quantity of a polymer having a melt index in the range of 0.0001 to 0.5 g/10 min as measured according to ASTM D 1238-73, Condition E, using as said solid component a solid product obtained by supporting chromium trioxide or a compound which on calcining forms chromium oxide at least partially, on an inorganic oxide carrier followed by calcining, and using as said organoaluminum compound a compound of the general formula ##STR1## wherein R is a hydrocarbon radical having 1 to 18 carbon atoms and n is 2.ltoreq.n.ltoreq.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: May 7, 1991
    Assignee: Nippon Oil Company, Limited
    Inventors: Yoshio Tajima, Kazutosi Nomiyama, Yoshinori Nishikitani, Nobuyuki Kuroda, Kazuo Matsuura