Patents Examined by Patrick Garvin
  • Patent number: 4535069
    Abstract: A supported type catalyst component for .alpha.-olefin polymerization, having a higher activity and capable of affording a highly stereoregular polymer is provided, which component comprises a solid product (II) obtained by reacting Mg compound(s) of formula MgR.sup.1 R.sup.2 (wherein R.sup.1 is alkyl, aryl, alkoxy or aryloxy and R.sup.2, alkyl, aryl, alkoxy, aryloxy or halogen), with a complex of compound(s) selected from Al halides and Al compounds of formula AlR.sub.n.sup.3 X.sub.3-n (wherein R.sub.3 is alkyl, aryl, alkoxy or aryloxy; X, halogen; 0.ltoreq.n<2) with an organic acid ester; and reacting the resulting solid product (I) (a carrier) with a liquid halogen-containing Ti compound. Preactivation of the solid product (II) with an organoaluminum compound and an .alpha.-olefin affords a catalyst component superior in storage stability and polymerization reproducibility.
    Type: Grant
    Filed: February 16, 1983
    Date of Patent: August 13, 1985
    Assignee: Chisso Corporation
    Inventors: Hiroshi Shimizu, Masaki Abe, Akihiro Sato
  • Patent number: 4524141
    Abstract: A catalyst and method in which the catalyst is active with a cocatalyst in the polymerization and copolymerization of 1-olefins and is prepared by reacting together one or more of a specific class of organic silicon compounds, a porous support or a silicon compound treated porous support, a Group IIA organometallic compound, and a Group IVB, VB transition metal compound or mixture thereof.
    Type: Grant
    Filed: April 21, 1983
    Date of Patent: June 18, 1985
    Assignee: Chemplex Company
    Inventors: Thomas J. Pullukat, Yu-Tang Hwang, Robert A. Dombro
  • Patent number: 4520121
    Abstract: An inexpensive one-step process is disclosed for producing the lower hydrates of magnesium dihalide by comminuting hydrated magnesium dihalide and anhydrous magnesium dihalide. Also the use of such hydrous magnesium dihalide products in the olefin polymerization catalysts.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: May 28, 1985
    Inventors: Kenneth E. Inkrott, Gil R. Hawley
  • Patent number: 4518706
    Abstract: A method is provided for preparing hydrocarbon soluble magnesium siloxide supports comprising contacting such supports with sufficient aluminum alkoxide or organic ethers to render the supports hydrocarbon soluble. Thereafter the supports are contacted with a transition metal compound and halogenated to obtain polymerization catalysts.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: May 21, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Donald E. Gessell
  • Patent number: 4517307
    Abstract: Components of catalysts for the polymerization of ethylene and of mixtures thereof with other olefins, in the form of emulsions or dispersions, in an inert liquid medium or in an inert gas phase of a liquid phase, comprising a compound of a metal of Groups IV to VI inclusive, of the Mendelyeev Periodic System, or a composition containing such a compound of the Mendelyeev Periodic System, which compound or composition is immiscible with aliphatic hydrocarbons, or which components are obtained from emulsions or dispersions, in an inert liquid medium or in gas phase, of a precursor of the catalyst component which, in the liquid state, is immiscible with the aliphatic hydrocarbons.An object of this invention is to provide new catalyst components for use in the polymerization of ethylene and of mixtures thereof with olefins and the catalysts obtained therefrom.
    Type: Grant
    Filed: December 22, 1982
    Date of Patent: May 14, 1985
    Assignee: Montedison S.p.A.
    Inventors: Illaro Cuffiani, Paolo Longi, Umberto Zucchini, Gianni Pennini
  • Patent number: 4514512
    Abstract: A method for the production of a solid titanium trichloride catalyst by the steps of preparing a titanium trichloride composition comprising a solid reduction product obtained by reducing titanium tetrachloride with an organoaluminum compound represented by the formula, R.sup.1.sub.n AlY.sub.3-n (wherein R.sup.1 is a hydrocarbon group having 1 to 18 carbon atoms; Y is a halogen atom or a hydrogen atom; and n is a number satisfying the equation, 1<n.ltoreq.3), or a solid product obtained by thermally treating said solid reduction product at a temperature of not more than 150.degree. C.; reacting said titanium trichloride composition in an aromatic hydrocarbon solvent with a mixture consisting of a halogen compound represented by the formula, X.sub.2 (wherein X is Cl, Br, or I), or an interhalogen compound represented by the formula, XX'.sub.a (wherein X and X' are each Cl, Br, or I, and a is 1 or 3), and an ether compound represented by the formula, R.sup.2 --O--R.sup.3 (wherein R.sup.2 and R.sup.
    Type: Grant
    Filed: March 31, 1983
    Date of Patent: April 30, 1985
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Akinobu Shiga, Yukio Naito, Toshio Sasaki, Junpei Kojima, Hiroshi Yoshioka, Akira Nunose
  • Patent number: 4514514
    Abstract: A process for producing a novel highly active vanadium catalyst comprising a particulate solid produced by reacting a vanadium compound, a phosphorus compound, and an organoaluminum compound and its use in the polymerization of olefins.
    Type: Grant
    Filed: April 28, 1983
    Date of Patent: April 30, 1985
    Assignee: Phillips Petroleum Company
    Inventor: Joel L. Martin
  • Patent number: 4514513
    Abstract: A preactivated catalyst for producing .alpha.-olefin polymers is provided, which is obtained by the steps which comprises:reacting an organoaluminum compound (O-Al.sub.1) with an electron donor (ED.sub.1) to obtain a reaction product (I);reacting (I) with TiCl.sub.4 to obtain a solid product (II);reacting (II) with an electron donor (ED.sub.2) and an electron acceptor to obtain a solid product (III);combining (III) with an organoaluminum compound (O-Al.sub.2) and a reaction product (RP) of an organoaluminum (O-Al.sub.3) with an electron donor (ED.sub.3) (III), (O-Al.sub.2) and (PP) being referred to as catalyst components), and in this combination, subjecting a part or the whole of the catalyst components to polymerization treatment with an .alpha.-olefin at least in the presence of (III) and said (O-Al.sub.2) to obtain a preliminarily activated catalyst; andpolymerizing an .alpha.-olefin in the presence of the catalyst.
    Type: Grant
    Filed: April 12, 1984
    Date of Patent: April 30, 1985
    Assignee: Chisso Corporation
    Inventors: Akihiro Sato, Kazutsune Kikuta, Kenji Matsuda, Toshihiro Uwai, Tohru Hanari
  • Patent number: 4514511
    Abstract: Spheroidal alumina particulates well adapted as catalysts or catalyst supports and having enhanced pore volumes are facilely prepared by drop coagulating an aqueous suspension or dispersion of alumina, or an aqueous solution of a basic aluminum salt, said suspension, dispersion or solution comprising an oil-in-water emulsion, and then recovering, drying and calcining the gelled particulates which result.
    Type: Grant
    Filed: May 19, 1983
    Date of Patent: April 30, 1985
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Roland Jacques, Thierry Dupin
  • Patent number: 4513094
    Abstract: A novel single-batch method for preparing carbon supported alloy catalysts, wherein one of the metals is a noble metal, preferably platinum and the other metals selected from the transition Groups IV, V, VI or VII. The process comprises sequentially adsorbing the metallic components onto the carbon support. The adsorption takes place in an aqueous medium and the metal components are introduced in the ionic form. The catalyst is finally formed by heating to an elevated temperature.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: April 23, 1985
    Assignee: United Technologies Corporation
    Inventor: Francis J. Luczak
  • Patent number: 4513095
    Abstract: Polymeric transition metal oxide alkoxides are converted by reaction with a reducing metal having a higher oxidation potential then the transition metal to a catalyst precursor, activated with a halide to form a catalyst component for olefin polymerization. Particularly exemplified are the reaction products of partially hydrolyzed titanium alkoxides with Mg.degree., used as a catalyst component for slurry polymerizations to produce polyethylene resins.
    Type: Grant
    Filed: April 7, 1983
    Date of Patent: April 23, 1985
    Assignee: National Distillers and Chemical Corporation
    Inventor: Anthony N. Speca
  • Patent number: 4513099
    Abstract: Olefins are converted into other olefins having different numbers of carbon atoms by contact with a catalyst produced by combining a metal, such as tungsten or a tungsten compound, with a halosilane by adding either water or silica to the suspension of metal and halosilane and then heating to activate the catalyst.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: April 23, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Simon G. Kukes, Robert L. Banks
  • Patent number: 4511669
    Abstract: Catalysts having high efficiency in preparing olefin polymers while controlling molecular weight distribution are disclosed. The catalysts utilize magnesium siloxide supports and the product polymer molecular weight distribution can be controlled by the catalyst preparation.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: April 16, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Donald E. Gessell
  • Patent number: 4508843
    Abstract: A catalyst component for polymerizing ethylene alone or with another alpha-olefin having from 3 to 18 carbon atoms at temperatures greater than about 150.degree. C. which catalyst component is the product obtained by treating at least one dehydrated particulate support material, such as silica, having an average particle size from about 0.05 to about 20 microns, preferably 1.0 to 10.0 microns, with(a) at least one dihydrocarbyl magnesium compound wherein the hydrocarbyl groups can be the same or different, such as butyl ethyl magnesium,(b) a transistion metal compound of Groups IVa, Va, or VIa of the Periodic Table, such as, for example, titanium tetrachloride, and (c) ethyl aluminum dichloride. In a preferred embodiment the particulate support material is treated with a halogenating agent prior to treatment with the transition metal compound.
    Type: Grant
    Filed: August 8, 1983
    Date of Patent: April 2, 1985
    Assignee: Exxon Research & Engineering Co.
    Inventors: Bradley P. Etherton, Anthony D. Hamer
  • Patent number: 4508851
    Abstract: Fibrous activated carbon having a pH not more than 5 which is suitable for recovering halogenated hydrocarbon solvents is disclosed. The fibrous activated carbon is obtained by acid treating raw fibrous activated carbon.
    Type: Grant
    Filed: June 21, 1983
    Date of Patent: April 2, 1985
    Assignee: Toho Beslon Co., Ltd.
    Inventors: Kazuo Izumi, Kenji Shimazaki, Kenji Seki
  • Patent number: 4508845
    Abstract: Polysiloxanes of relatively low molecular weight are catalytically polymerized/rearranged into high molecular weight polysiloxanes in the presence of a cationic catalyst comprising a porous, inorganic mineral particulate support having an average pore diameter in excess of 20 .ANG. and a pore volume ranging from 0.2 to 2 ml/g, said porous support being coated with less than 15 mg/m.sup.2 of a film of polymeric material comprising pendant sulfonic or phosphonic acid functions, and said polymeric material being characterized by an ion exchange capacity of less than 2 milliequivalents per gram.
    Type: Grant
    Filed: May 31, 1983
    Date of Patent: April 2, 1985
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Adrien Dromard, Claude Millet
  • Patent number: 4508844
    Abstract: A catalyst component useful for (co)polymerizing ethylene under high temperatures and pressures comprising the reaction product obtained by treating a magnesium halide supported titanium halide precursor with transition-metal halide or oxyhalide, thoroughly washing the solid reaction product therefrom and prepolymerizing the washed solid product with an alpha-olefin having from 4-12 carbon atoms.
    Type: Grant
    Filed: August 4, 1983
    Date of Patent: April 2, 1985
    Assignee: Exxon Research & Engineering Co.
    Inventor: Agapios K. Agapiou
  • Patent number: 4508842
    Abstract: An ethylene polymerization catalyst comprising a supported precursor of vanadium trihalide/electron donor complex and alkylaluminum or boron halides, when combined with alkylaluminum cocatalyst and alkyl halide promoter provides enhanced polymerization and productivity plus superior polyethylene.
    Type: Grant
    Filed: March 29, 1983
    Date of Patent: April 2, 1985
    Assignee: Union Carbide Corporation
    Inventors: Debra L. Beran, Kevin J. Cann, Robert J. Jorgensen, Frederick J. Karol, Norma J. Maraschin, Arthur E. Marcinkowsky
  • Patent number: 4506032
    Abstract: This invention relates to a new catalyst for converting hydrocarbons. The catalyst comprises a platinum group component, a Group IVA component, especially tin, an alkali or alkaline earth component, more than 0.2 weight %, calculated on an elemental basis, of a halogen component and a porous carrier material, wherein the atomic ratio of the alkali or alkaline earth component to the platinum group component is more than 10. The catalyst is particularly useful for dehydrogenating paraffins having from 2 to 5 or more carbon atoms to the corresponding mono-olefins, or for dehydrogenating mono-olefins having from 3 to 5 or more carbon atoms to the corresponding di-olefins.
    Type: Grant
    Filed: October 14, 1983
    Date of Patent: March 19, 1985
    Assignee: UOP Inc.
    Inventors: Tamotsu Imai, Chi-Wen Hung
  • Patent number: 4506029
    Abstract: A catalytic component for polymerizing olefins comprises a solid support containing magnesium-halogen or manganese-halogen bonds, a transition metal halide of a metal selected from Groups IVB and VB of the periodic table, and electron donors. This catalytic component is obtainable by steps comprising:(a) contacting a mixture comprising a magnesium halide or manganese halide and at least one electron donor with a Ti(OR).sub.4 compound to form a solution, where R is a hydrocarbyl or halogenated hydrocarbyl moiety containing 1 to 20 carbon atoms or a halogen, and(b) reacting the solution with a reagent comprising a transition metal halide selected from Groups IVB and VB of the periodic table,whereby, with a suitable cocatalyst, polyolefin is formed with high activity, showing a high Isotactic Index, and with a narrow range of particle size distribution.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: March 19, 1985
    Assignee: Stauffer Chemical Company
    Inventor: Elliot I. Band