Quaternary Ammonium Or Phosphonium Patents (Class 502/164)
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Patent number: 6127307Abstract: A noble metal-free catalyst composition is obtainable bya) preparing an aqueous mixture comprisingi) a salt of at least one base metal selected from among the elements having atomic numbers 21-32, 39-42, 48-51, 57-75 and 81-83;ii) phosphate ions; andiii) at least one nitrogen source; andb) evaporating the aqueous mixture obtained and drying the catalyst composition thus formed. The catalyst composition prepared can be used for producing hydrogen peroxide and for the epoxidation of olefins.Type: GrantFiled: September 4, 1998Date of Patent: October 3, 2000Assignee: BASF AktiengesellschaftInventors: Ulrich Muller, Michael Schulz, Laszlo Marosi, Wolfgang Harder
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Patent number: 6127301Abstract: The present invention provides a novel catalyst system which can be preferably used in the trimerization, oligomerization reaction or polymerization reaction of an olefin, and a method for the trimerization, oligomerization or polymerization reaction of an olefin, which comprises using the catalyst system. A catalyst system obtained by contacting the following components (A) to (C):(A) a chromium compound,(B) an imine compound, and(C) a metal alkyl compound, and a method for the trimerization, oligomerization or polymerization reaction of an olefin, which comprises using the catalyst system are disclosed.Type: GrantFiled: June 27, 1997Date of Patent: October 3, 2000Assignee: Sumitomo Chemical Company, LimitedInventors: Kiyoshi Iwanaga, Mitsuhisa Tamura
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Patent number: 6121184Abstract: Supported bis(phosphorus) ligands are disclosed for use in a variety of catalytic processes, including the hydrocyanation of unsaturated organic compounds. Catalysts are formed when the ligands are combined with a catalytically active metal (e.g., nickel).Type: GrantFiled: July 8, 1998Date of Patent: September 19, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Joe Douglas Druliner, Kenneth Gene Moloy, Manxue Wang
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Patent number: 6121185Abstract: A catalyst activator, comprising a cation which is a Bronsted acid capable of donating a proton, and an inert, compatible, noncoordinating, anion, characterized by a solubility constant at 25.degree. C. in hexane, cyclohexane or methylcyclohexane of at least 5 weight percent.Type: GrantFiled: January 8, 1999Date of Patent: September 19, 2000Assignee: The Dow Chemical CompanyInventors: Robert K. Rosen, Daniel D. VanderLende
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Patent number: 6114272Abstract: A catalyst for preparing aldehydes by hydroformylation of olefins or olefinically unsaturated compounds comprising at least one rhodium compound and a non-aqueous ionic ligand liquid of the formula (Q.sup.+).sub.a A.sup.a-, where Q.sup.+ is a singly charged quaternary ammonium and/or phosphonium cation or the equivalent of a multiply charged ammonium and/or phosphonium cation and A.sup.a- is a sulfonated triarylphosphine.Type: GrantFiled: July 26, 1999Date of Patent: September 5, 2000Assignee: Celanese GmbHInventor: Helmut Bahrmann
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Patent number: 6114563Abstract: A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system that includes a catalytic amount of an inorganic co-catalyst containing bismuth. In various alternative embodiments, the carbonylation catalyst system can include an effective amount of a palladium source and an effective amount of a halide composition. Further alternative embodiments can include catalytic amounts of various inorganic co-catalyst combinations.Type: GrantFiled: April 29, 1999Date of Patent: September 5, 2000Assignee: General Electric Co.Inventors: James Lawrence Spivack, Donald Wayne Whisenhunt, Jr., James Norman Cawse, Bruce Fletcher Johnson, Kirill Shalyaev
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Patent number: 6114589Abstract: The invention relates to a process for the preparation of fluorinated compoundsAz.sub.x ArF.sub.w Cl.sub.(y-w) R.sub.z (1)in which Az is a radical --F, --Cl, --Br, --NO.sub.2, --CN, --CF.sub.3, --CCl.sub.3, --CHO, --CO(C.sub.n H.sub.2n+1), --COX or --SO.sub.2 X, where X is F, Cl or Br, x is an integer from 1 to 3, Ar is a phenyl radical, pyridyl radical or naphthyl, w is an integer from 1 to y, y is an integer from 1 to 5, R is H, an alkyl radical or an alkoxy radical having from 1 to 10 carbon atoms, z is an integer from 1 to 5, (x+y+z) is the number of all substitutable valences on the radical Ar, which comprises reacting a compoundAz.sub.x ArCl.sub.y R.sub.z (2),with an alkali metal fluoride in the presence of a component a) or a mixture of component a) and at least one of components b), c), d) and/or e), component a) being one or more quaternary ammonium compounds which contain one or more radicals --(C.sub.m H.sub.2m O)R.sup.Type: GrantFiled: October 13, 1998Date of Patent: September 5, 2000Assignee: Clariant GmbHInventors: Thomas Schach, Thomas Wessel, Maren Gutermuth
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Patent number: 6107232Abstract: The present invention is directed to a polymerization catalyst which comprises (A) a transition metal compound represented by the general formula (I)L.sub.d MX.sub.e Y.sub.f Z.sub.g (I)[wherein the respective symbols are as defined in the specification], (B) a compound capable of forming an ionic complex from the transition metal compound of the component (A) or its derivative and, if necessary, (C) an organic aluminum compound; and a process for preparing homopolymerizing or copolymerizing monomers in the presence of the above-mentioned polymerization catalyst. The polymerization catalyst of the present invention has a high activity at 70 to 200.degree. C. which is efficient in an industrial process or at a higher temperature and permits the formation of a (co)polymer which has a high molecular weight and a uniform composition and which can control a molecular weight distribution.Type: GrantFiled: June 9, 1995Date of Patent: August 22, 2000Assignee: Idemitsu Kosan Co., Ltd.Inventor: Kiyohiko Yokota
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Patent number: 6103867Abstract: The catalyst systems comprise as active constituentsa) a metal complex of the formula (I) ##STR1## b) one or more Lewis or protic acids or a mixture of Lewis and protic acids.Type: GrantFiled: June 8, 1999Date of Patent: August 15, 2000Assignee: BASF AktiengesellschaftInventors: Michael Slany, Arthur Hohn
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Patent number: 6096673Abstract: An improved process is provided for the recovery of catalyst components from oligomeric impurities which are formed during the industrial preparation of 2,5-dihydrofuran by the catalytic isomerization of vinyl oxirane followed by an essential separation of the oligomeric by-products which otherwise cause deactivation of the catalyst. The catalyst components consist essentially of (a) an onium iodide and (b) a Lewis acid selected from the group consisting of the chloride, bromide or iodide of the metals zinc, tin, cobalt and bismuth, preferably zinc, where the catalyst optionally includes a donor ligand.Type: GrantFiled: April 21, 1998Date of Patent: August 1, 2000Assignee: BASF AktiengesellschaftInventor: Martin Fischer
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Patent number: 6096680Abstract: Liquid clathrate compositions useful as reusable aluminum catalysts in Friedel-Crafts reactions are described. In one embodiment, the liquid clathrate composition is formed from constituents comprising (i) at least one aluminum trihalide, (ii) at least one salt selected from alkali metal halide, alkaline earth metal halide, alkali metal pseudohalide, quaternary ammonium salt, quaternary phosphonium salt, or ternary sulfonium salt, or a mixture of any two or more of the foregoing, and (iii) at least one aromatic hydrocarbon compound.Type: GrantFiled: April 22, 1998Date of Patent: August 1, 2000Assignee: Albemarle CorporationInventor: Won S. Park
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Patent number: 6054407Abstract: Olefins can be epoxidized using catalysts I ##STR1## where M is a metal of the 4th to 7th transition group of the Periodic Table of the Elements,L.sup.1 is an amine oxide, phosphine oxide, arsine oxide, pyridine N-oxide or pyridine ligand of the formula II, III, VII or VIII,L.sup.2 is a customary auxiliary ligand or a further ligand L.sup.1 or a free coordination site,X is oxo oxygen or an imido ligand,m is 1 or 2, andn is 1, 2 or 3.Type: GrantFiled: March 11, 1998Date of Patent: April 25, 2000Assignee: BASF AktiengesllschaftInventors: Michael Schulz, Joaquim Henrique Teles, Jorg Sundermeyer, Gunter Wahl
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Patent number: 6040262Abstract: The present invention relates to a catalyst composition comprising an acid supported on carrier characterised in that said composition comprises in addition an amino compound.Type: GrantFiled: March 10, 1999Date of Patent: March 21, 2000Assignee: BP Chemicals LimitedInventors: Christoph Martin Fougret, Wolfgang Friederich Holderich
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Patent number: 6040263Abstract: A novel non-aqueous catalytic composition comprises at least one quaternary ammonium and/or phosphonium salt in which the anion is selected from the group consisting of tetrafluoroborate, tetrachloroborate, hexafluorophosphate, hexafluoroantimonate, hexafluoroarsenate, trifluorosulphonate, fluorosulphonate, trifluoromethylsulphonate, trifluoroarsenate, dichlorocuprate, trichlorocuprate, tetrachlorocuprate, and trichlorozincate, and at least one complex of a transition metal from groups 8, 9 or 10, i.e., iron, ruthenium, colbalt, rhodium iridium, nickel, palladium and platinum. The catalyst can be used in a process of total or selective hydrogenation of unsaturated compounds such as monoolefins, diolefins, acetylene compounds, aromatic compounds, or polynuclear aromatic compounds. Hydrogenation may be accompanied by isomerisation.Type: GrantFiled: September 15, 1998Date of Patent: March 21, 2000Assignee: Institut Francais du PetroleInventors: Lothar Mussmann, Yves Chauvin, Helene Olivier
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Patent number: 6025295Abstract: A supported catalyst comprising a support, an anchoring agent such as a heteropoly acid or anion, and a metal complex which is useful in a wide variety on organic reactions, especially the hydrogenation of substituted .alpha., .beta. unsaturated acids and esters, is provided. Various methods of preparing the supported catalyst of the present invention is also disclosed.Type: GrantFiled: December 18, 1997Date of Patent: February 15, 2000Assignee: Seton Hall UniversityInventors: Setrak K. Tanielyan, Robert L. Augustine
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Patent number: 6020454Abstract: The present invention relates to a polyester polymerization catalyst, comprising a solution containing an aluminum compound and an alkali compound, with water or an organic solvent or a mixture consisting of water and an organic solvent as the medium, a production method thereof, and a polyester production method, in which the product obtained by the esterification reaction or ester interchange reaction between an aromatic dicarboxylic acid or any of its ester forming derivative and a diol is polycondensed, to produce a polyester, comprising the use of said polymerization catalyst containing an aluminum compound.The present invention can provide a polyester excellent in processability and can overcome such problems as spinneret contamination, filtration pressure rise, filament breaking, film breaking and foreign matter production in the production process of products such as fibers, films, resins and bottles.Type: GrantFiled: November 6, 1998Date of Patent: February 1, 2000Assignee: Toray Industries, Inc.Inventors: Masatoshi Aoyama, Kenichi Tsutsumi, Minoru Uchida
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Patent number: 5990352Abstract: A salt useful as an active species in an organic reaction and represented by the following chemical formula (1): ##STR1## wherein n stands for an integer of from 1 to 8, Z.sup.n- represents an n-valent anion of an active hydrogen compound, a, b, c and d each stands for a positive integer, and Rs represent the same or different hydrocarbon groups. In addition, a simple and efficient process is provided for producing a poly(alkylene oxide) by polymerizing an alkylene oxide compound in the presence of the salt represented by the chemical formula (1).Type: GrantFiled: February 5, 1997Date of Patent: November 23, 1999Assignee: Mitsui Chemicals, Inc.Inventors: Tadahito Nobori, Masahiro Kouno, Toshiaki Suzuki, Kazumi Mizutani, Shinji Kiyono, Yoshiho Sonobe, Usaji Takaki
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Patent number: 5981423Abstract: A vulcanization promoter for fluorine-containing elastomers prepared by (1) allowing 1.01 to 1.15 moles of a quaternary phosphonium salt to react with one mole of monoalkali metal salt of bisphenol AF in alcohol, (2) allowing 2.02 to 2.30 moles of a quaternary phosphonium salt to react with one mole of a dialkali metal salt of bisphenol AF in alcohol, (3) allowing one mole each of an alkali metal alkoxide and bisphenol AF to react with 1.01 to 1.15 moles of a quaternary phosphonium salt in alcohol or (4) subjecting one mole of bisphenol AF, 1.01 to 1.15 moles of a quaternary phosphonium salt and one mole of an alkali metal alkoxide to reaction in alcohol, each followed by further addition of the bisphenol AF thereto, or (5) allowing 1.01 to 1.15 moles of a quaternary phosphonium salt to react with one of 1/4alkali metal salt of bisphenol AF in alcohol gives much more improved vulcanization characteristics such as vulcanization speed, etc.Type: GrantFiled: September 10, 1998Date of Patent: November 9, 1999Assignee: Nippon Mektron, LimitedInventors: Hiroshi Kawasaki, Akihiro Naraki, Haruyoshi Tatsu
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Patent number: 5972825Abstract: The present invention relates to compounds of the formula (I) ##STR1## where R.sup.1 is H or an alkyl radical having from 1 to 12 carbon atoms, R.sup.2 is a straight-chain alkylene radical having from 1 to 8 carbon atoms, an oxygen-containing alkylene radical having from 2 to 4 carbon atoms, a radical of the formula (II) or (III) ##STR2## or a cycloalkylene radical having from 3 to 10 carbon atoms, R.sup.3 is an alkyl radical having from 1 to 25 carbon atoms or an aryl radical having from 6 to 10 carbon atoms, A is a radical --COO.sup.- or --SO.sub.3 .sup.- and x=0, y=1, m=1 and n=1, or x=1, y=1, m=(1 or 2) and n=(1 or 2), or, if R.sup.2 is a radical of the formula (II) or (III), x=1, y=0, m=(0 or 1) and n=(0 or 1), and also a process for their preparation.Type: GrantFiled: June 10, 1998Date of Patent: October 26, 1999Assignee: Celanese GmbHInventors: Dieter Regnat, Hans-Jerg Kleiner, Helmut Bahrmann
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Patent number: 5916432Abstract: A transition metal salt, preferably ammonium heptamolybdate, is dissolved in water to provide a solution containing the dispersed catalyst precursor. The solution is atomized by passing it through an atomizing nozzle submerged in hot oil. The minute atomized droplets are delivered into the hot oil and the water is flashed to form steam bubbles. The precursor forms catalytic particles distributed in the oil.Type: GrantFiled: September 24, 1997Date of Patent: June 29, 1999Assignee: Alberta Oil Sands Technology and Research AuthorityInventors: Richard Anthony McFarlane, Ted Cyr, Randall Wayne Tedford Hawkins
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Patent number: 5914044Abstract: A solid phase ligand removes metal cations from solution. The ligand is a branched polyalkyleneimine having a molecular weight of at least about 400, covalently bound to an inorganic support.Type: GrantFiled: December 20, 1996Date of Patent: June 22, 1999Assignee: Metre-International Inc.Inventors: Leonard Francis Lindoy, Peter Lewis Eaglen, Robert Louis Alldredge
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Patent number: 5821322Abstract: Diaminoalkyl quaternary ammonium salts are prepared by the reaction of alkyl halides with tertiary diamines having C.sub.2-20 primary alkyl radicals attached to nitrogen and an alkyl radical between the two nitrogen atoms in which at least three carbon atoms separate said nitrogen atoms. Said salts are preferably substantially free from corresponding diamines. They are useful as catalysts for interfacial polycarbonate preparation by the reaction of phosgene with at least one dihydroxyaromatic compound. Polycarbonate preparation using such catalysts is economical in phosgene consumption, is accompanied by a rapid conversion of chloroformate groups to desirable species and affords a product with a very low proportion of unreacted dihydroxyaromatic compound.Type: GrantFiled: May 5, 1997Date of Patent: October 13, 1998Assignee: General Electric CompanyInventors: Daniel Joseph Brunelle, Peter David Phelps, Eugene Pauling Boden, Mark Erik Nelson, Larry Ivis Flowers, Paul Dean Sybert, Erik Hendrick Adriaan Capelle
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Patent number: 5817592Abstract: A process for the preparation of a hydrogenation catalyst by reduction of platinum in an oxidation stage of not less than 2 in an aqueous medium in the presence of a carboniferous support, optionally following partial poisoning with a sulfur, arsenic, tellurium, or antimony-containing compound, using a reducing agent, in which the reducing agent used is an ammonium or phosphonium salt of the general formula I?XR.sup.4 !.sub.n Y Iin which X stands for N or P, R stands for hydrogen, C.sub.1 --C.sub.18 alkyl, C.sub.5 --C.sub.10 cycloalkyl, phenyl radical, and also a C.sub.1 --C.sub.4 alkyl radical substituted by phenyl, the phenyl radicals being mono-to tri-substituted by C.sub.1 --C.sub.6 alkyl, halogen, nitro or amino, if desired, provided that the radicals R may be the same or different but cannot simultaneously denote hydrogen, if X is P, n is an integer of 1 to 3, and Y is an organic anion which can reduce platinum in an oxidation stage other than zero to platinum in the oxidation stage of zero.Type: GrantFiled: January 23, 1996Date of Patent: October 6, 1998Assignee: BASF AktiengesellschaftInventors: Daniel Heineke, Heinz-Walter Schneider, Alfred Thome
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Patent number: 5804525Abstract: A composition and method is provided for making polycarbonate utilizing an effective amount of a binary catalyst system, comprising a phase transfer catalyst and a tertiary organic amine, as a condensation catalyst during the interfacial phosgenation of a bisphenol, such as bisphenol A. for improved phosgene utiliziation.Type: GrantFiled: February 8, 1996Date of Patent: September 8, 1998Assignee: General Electric CompanyInventors: Eugene P. Boden, Larry I. Flowers, Roy R. Odle, Peter D. Phelps, David L. Ramsey, Paul D. Sybert
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Patent number: 5750455Abstract: The invention concerns a catalytic composition resulting from mixing at least one aluminum halide, at least one quaternary ammonium halide and/or at least one amine halohydrate and at least one cuprous compound, preferable a halide. The invention also concerns a process for the alkylation of isoparaffins by olefins with that composition.Type: GrantFiled: October 24, 1995Date of Patent: May 12, 1998Assignee: Institut Francais Du PetroleInventors: Yves Chauvin, Andre Hirschauer, Helene Olivier
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Patent number: 5744416Abstract: A method is provided for making polycarbonates utilizing an effective amount of a binary phase transfer catalyst, such as tetrabutylammonium bromide and a methyl tertiary amine as a condensation catalyst during the interfacial phosgenation of a bisphenol, such as bisphenol A. Improved phosgene utilization is achieved.Type: GrantFiled: February 8, 1996Date of Patent: April 28, 1998Assignee: General Electric CompanyInventors: Larry I. Flowers, Paul D. Sybert, David L. Ramsey
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Patent number: 5739257Abstract: A composition and method is provided for making polycarbonate utilizing an effective amount of a binary catalyst system, comprising a phase transfer catalyst selected from the group consisting of methyltributylammonium halide and hexabutylbutylenediammonium halide and a tertiary organic amine, as a condensation catalyst during the interfacial phosgenation of a bisphenol, such as bisphenol A. Improved phosgene utilization and the substantial elimination of emulsion formation in the interfacial polymerization reactor and the processing units downstream thereof results.Type: GrantFiled: October 21, 1996Date of Patent: April 14, 1998Assignee: General Electric CompanyInventors: Eugene P. Boden, Larry I. Flowers, Peter D. Phelps, David L. Ramsey, Paul D. Sybert
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Patent number: 5736621Abstract: A process is described for the preparation of polyesters by polycondensation of dicarboxylic acid-diol precondensates (oligomers) at elevated temperature in a liquid heat transfer medium in the presence of customary polycondensation catalysts and, if appropriate, cocondensable modifying agents, wherein the liquid heat transfer medium is inert and free of aromatic structural groups and has a boiling point in the range from 200.degree. to 320.degree. C., wherein the weight ratio of dicarboxylic acid-diol precondensate (oligomers) employed to liquid heat transfer medium is in the range from 20:80 to 80:20 and wherein the polycondensation is carried out in the reaction mixture at 200.degree. to 320.degree. C. in the presence of a dispersion stabilizer. Furthermore, the polyesters and copolyester which can be prepared by the process and their use are described.Type: GrantFiled: June 27, 1996Date of Patent: April 7, 1998Assignee: Hoechst AktiengesellschaftInventors: Peter Simon, Andree Henze, Karsten Blatter
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Patent number: 5731460Abstract: A catalyst system and process for the oxidative cleavage of alkenes with hydrogen peroxide is provided. The catalyst system comprises a source of ruthenium, a source of molybdenum and a phase transfer agent. The process comprises contacting an alkene with the hydrogen peroxide in the presence of the above catalyst system. Sources of ruthenium and molybdenum comprise the metals, salts or complexes. Preferred sources are RuCl.sub.3 and MoO.sub.3. The phase transfer agent is preferably a quaternary ammonium salt. The process usually takes place in the presence of an organic solvent, preferably t-butanol.Type: GrantFiled: February 14, 1996Date of Patent: March 24, 1998Assignee: Solvay Interox LimitedInventors: Alexander Johnstone, Paul John Middleton, Miranda Service, William Ronald Sanderson
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Patent number: 5693585Abstract: A catalyst containing a porous organic or mineral support and at least one active phase having at least one aluminum halide, at least one compound selected for quaternary ammonium halides and amine hydrohalides, and at least one cuprous compound, the support having been impregnated with the active phase, the catalyst essentially constituted by particles with an average diameter in the range 0.1 .mu.m to 150 .mu.m, and the support, before impregnation with the active phase, has a total pore volume in the range 0.1 cm.sup.3 /g and 6 cm.sup.3 /g.Type: GrantFiled: June 17, 1996Date of Patent: December 2, 1997Assignee: Institut Francais du PetroleInventors: Eric Benazzi, Yves Chauvin, Andre Hirschauer, Nathalie Ferrer, Helene Olivier, Jean-Yves Bernhard
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Patent number: 5681790Abstract: This invention relates to a novel catalyst for preparing methacrylic acid by gas phase oxidation of methacrolein obtained by gas phase catalytic oxidation of isobutylene or t-butanol. The catalyst is represented by the formula:P.sub.a Mo.sub.11 V.sub.b Du.sub.c X.sub.d Q.sub.e Z.sub.f O.sub.gwhereinX is at least one of potassium, rubium, cessium, and thallium;Z is at least one of lead, antimony, chromium, iron, bismuth, cerium, and zinc;Q is at least one of organic quaternary ammonium cations consisting of ##STR1## in which R, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently selected from the group consisting of C.sub.1 -C.sub.5 alkyl or C.sub.1 -C.sub.5 substituted alkyl having functional groups;a is a number from 0.8 to 1.6;b is a number from 0.6 to 2;c is a number from 0.1 to 0.8;d is a number from 0.7 to 2.2;e is a number from 0.01 to 0.1;f is a number from 0 to 0.5; andg is a number of oxygens required to satisfy the valence requirements of the other elements present.Type: GrantFiled: November 30, 1995Date of Patent: October 28, 1997Assignee: Samsung General Chemicals Co., Ltd.Inventors: Young Chul Kim, Ki Hwa Lee, Eun Hee Jin
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Patent number: 5625027Abstract: A process for producing a branched polycarbonate which comprises using a branching agent containing 200 ppm or less of sulfur; a branched polycarbonate which is prepared by the interfacial method and contains 1.0 ppm or less of residual sulfur as an impurity; and a branched polycarbonate which is prepared by the melting method and contains 2.0 ppm or less of residual sulfur as an impurity; are provided. When the branched polycarbonate is produced by the interfacial method, the branched polycarbonate produced does not show deterioration in heat stability or cause mold corrosion. When the branched polycarbonate is produced by the melting method, the branched polycarbonate produced does not show deterioration in heat stability or in color tone.Type: GrantFiled: September 20, 1995Date of Patent: April 29, 1997Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Shigeki Kuze, Ryozo Okumura, Seiji Takahashi
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Patent number: 5625107Abstract: The present invention relates to a new catalyst for converting methane into ethane, preparation thereof, and process for manufacturing ethylene using said catalyst. The conversion reaction catalyst in the present invention is employed in converting directly methane or methane-containing gas in the presence of the above catalyst with the following general formula (1).Ma.Pc.D/S (1)Where,M is a metal cluster or metal complex compound selected from the group of VIII, VII and VI series;S is an inorganic carrier;P is a promoter of phosphorus compound;D is a cobalt compound.And "a" is weight percentage of metal cluster or metal complex compound in catalyst, having a value of 0.01 to 10, "c" is weight percentage of promoter in catalyst, ranging from 1.0 to 35.0.Type: GrantFiled: August 30, 1995Date of Patent: April 29, 1997Assignee: Korea Research Institute of Chemical TechnologyInventors: Dae C. Park, Pyung K. Ahn
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Patent number: 5593932Abstract: A catalytic mixture of discrete solid materials and a mercaptan oxidation process for using the catalytic mixture have been developed. The catalytic mixture comprises a metal chelate dispersed on a non-basic solid support and a solid base. The process involves contacting a sour middle distillate hydrocarbon fraction which contains mercaptans with the supported metal chelate and the solid base mixture in the presence of an oxidizing agent and a polar compound. The process is unique in that both the catalyst and the base are discrete solid materials.Type: GrantFiled: January 17, 1995Date of Patent: January 14, 1997Assignee: UOPInventors: Ralph D. Gillespie, Jeffery C. Bricker, Blaise J. Arena, Jennifer S. Holmgren
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Patent number: 5550168Abstract: A modified polyisocyanurate foam is produced by reacting an organic polyisocyanate, a polyol and water in the presence of three catalyst, i.e. two particular trimerization catalysts and a carbodiimidation catalyst. There can be produced, without using any evaporating type blowing agent, a modified polyisocyanurate foam which is suitably used for continuous production of laminate boards, siding boards, insulation boards, etc.Type: GrantFiled: June 20, 1994Date of Patent: August 27, 1996Assignee: Nisshinbo Industries, Inc.Inventors: Satoshi Nakamura, Hirokatsu Shirahata
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Patent number: 5527875Abstract: A process for producing an aromatic polycarbonate having a weight average molecular weight of from 7,000 to 60,000 is disclosed, comprising melt polycondensing an aromatic diol compound (e.g., bisphenol A) and a diaryl carbonate compound (e.g., diphenyl carbonate) in the presence of a combination of (a) an alkali metal compound and (b) a phosphonium hydroxide compound (e.g., tetraethylphosphonium hydroxide) as an interesterification catalyst. The aromatic polycarbonate has improved heat resistance and hue.Type: GrantFiled: February 9, 1995Date of Patent: June 18, 1996Assignee: Mitsubishi Chemical CorporationInventors: Masuzo Yokoyama, Fumio Keitoku, Junji Takano, Masami Hasegawa, Yukiko Tatsukawa
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Patent number: 5512696Abstract: A process for hydrocyanation of an aliphatic monoethylenically unsaturated compound, in which the ethylenic double bond is not conjugated to any other unsaturated group in the molecule, or a monoethylenically unsaturated compound in which the ethylenic double bond is conjugated to an ester group, which process uses a catalyst composition comprising a zero-valent and a multidentate phosphite ligand in the presence of a Lewis acid promoter.Type: GrantFiled: July 21, 1995Date of Patent: April 30, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Kristina A. Kreutzer, Wilson Tam
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Patent number: 5492875Abstract: A catalyst consisting essentially of a quaternary ammonium compound, comprising at least one linear or branched alkoxypolyoxyalkyl chain, and a quaternary ammonium or phosphonium salt or a polyether, or a mixture of each of the specified compounds, is suitable for accelerating, or making possible for the first time, many nucleophilic aromatic substitutions.Type: GrantFiled: July 19, 1994Date of Patent: February 20, 1996Assignee: Hoechst AGInventors: Thomas Schach, Theodor Papenfuhs
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Patent number: 5449653Abstract: A process for producing a 1,3-diol, e.g., 1,3-propanediol, and/or a 3-hydroxyaldehyde, e.g., 3-hydroxypropionaldehyde, is disclosed which comprises contacting a combination of an epoxide, carbon monoxide and hydrogen in the presence of a rhodium-containing.catalyst composition effective to promote the hydroformylation of the epoxide at conditions effective to form at least one of a 1,3-diol and a 3-hydroxyaldehyde. The rhodium-containing catalyst composition comprises an anionic rhodium-containing complex. A promoter component is preferably provided to enhance at least one of the rate and selectivity of the epoxide hydroformylation reaction. Rhodium-containing compositions and a processes for producing rhodium-containing compositions are also disclosed.Type: GrantFiled: February 5, 1993Date of Patent: September 12, 1995Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: John R. Briggs, John M. Maher, Arnold M. Harrison
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Patent number: 5391661Abstract: There are disclosed a catalyst well suited for producing a styrenic polymer having a high degree of syndiotactic configuration which comprises a transition-metal compound such as pentamethylcyclopentadienyltrimethyltitanium and a coordination complex compound comprising an anion in which a plurality of radicals are bonded to a metal and a quaternary ammonium salt, the compound being exemplified by orthocyano-N-methylpyridinium tetra(pentafluorophenyl)borate, or comprises an alkylating agent such as triisobutylaluminum in addition to the above two compounds; and a process for producing a styrenic polymer having a high degree of syndiotactic configuration by polymerizing a styrenic monomer using the aforementioned catalyst. Consequently, a styrenic polymer having a high degree of syndiotactic configuration can be produced effectively without the use of an expensive aluminoxane required in a large amount if used.Type: GrantFiled: February 2, 1993Date of Patent: February 21, 1995Assignee: Idemitsu Kosan Co., Ltd.Inventors: Shoji Naganuma, Masami Watanabe, Norio Tomotsu
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Patent number: 5387708Abstract: A process for the production of dialkyl carbonates, such as dimethyl carbonate. In one aspect, the process involves contacting under reaction conditions an alkanol, such as methanol, with carbon monoxide and oxygen in the vapor phase and in the presence of a catalyst containing (1) a copper halide, a copper oxyhalide, or a copper carboxylate halide, (2) a quaternary ammonium salt, and (3) a support component. The catalyst achieves high selectivity and productivity to dialkyl carbonates. In a second aspect, the addition of a chlorocarbon catalyst regenerator to the alkanol feed increases catalyst stability and lifetime and increases the selectivity and/or productivity to dialkyl carbonates.Type: GrantFiled: December 10, 1993Date of Patent: February 7, 1995Assignee: The Dow Chemical CompanyInventors: David C. Molzahn, Mark E. Jones, George E. Hartwell, Jose Puga
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Patent number: 5385878Abstract: A method for producing a modified polyisocyanurate foam by reacting an organic polyisocyanate, polyol and water in the presence of a trimerization catalyst composed of a salt of 1,8-diaza-bicyclo[5.4.0] undecene-7, and a carbodiimidation catalyst composed of a certain phosphorene oxide. The method enables production of low density modified polyisocyanurate foams with ease and rapidly without using volatile blowing agents such as CFC, HCF, HFC pentane and methylene chloride.Type: GrantFiled: March 14, 1994Date of Patent: January 31, 1995Assignee: Nisshinbo Industries, Inc.Inventors: Satoshi Nakamura, Hirokatsu Shirahata
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Patent number: 5371057Abstract: A method for producing a modified polyisocyanurate foam by reacting an organic polyisocyanate, polyol and water in the presence of a trimerizing catalyst composed of a certain hydroxyalkyl quaternary ammonium compound, and a carbodiimidizing catalyst composed of a certain phosphorene oxide. The method enables production of low density modified polyisocyanurate foams with ease and rapidly without using volatile blowing agents such as CFC, HCFC, HFC and methylene chloride.Type: GrantFiled: April 8, 1994Date of Patent: December 6, 1994Assignee: Nisshinbo Industries, Inc.Inventors: Kiyotake Morimoto, Satoshi Nakamura
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Patent number: 5347060Abstract: This invention relates to phase transfer catalysis (PTC) using a composition of synthetic ultra-large pore crystalline material which contains a cation of an onium compound, e.g. cetyltrimethylammonium, within the pores of said material. The crystalline material has, after calcination, an X-ray diffraction pattern with at least one peak at a d-spacing greater than 18 Angstrom Units and a benzene adsorption capacity of greater than 15 grams benzene per 100 grams of said material at 6.7 kPa (50 torr) and 25.degree. C.Type: GrantFiled: June 11, 1993Date of Patent: September 13, 1994Assignee: Mobil Oil CorporationInventors: Stuart D. Hellring, Jeffrey S. Beck
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Patent number: 5318936Abstract: A catalyst and a process for using the catalyst have been developed. The catalyst is a metal chelate dispersed on a basic support which is a combination of a solid base and a secondary component. The solid base can be a solid solution of metal oxides and/or a layered double hydroxide (LDH) and the secondary component can be calcium oxide, magnesium oxide, calcium hydroxide and magnesium hydroxide. The process involves contacting a sour hydrocarbon fraction which contains mercaptans with the catalyst in the presence of an oxidizing agent and a polar compound. Examples of these polar compounds are water and alcohols, with methanol being especially preferred. The process is unique in that the solid solution or LDH are solid bases which eliminates the need for a liquid base. Optionally, an onium compound may be used as a catalyst promoter.Type: GrantFiled: September 23, 1992Date of Patent: June 7, 1994Assignee: UOPInventors: Barret A. Ferm, Blaise J. Arena, Jennifer S. Holmgren
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Patent number: 5312794Abstract: A catalyst system and process for the polymerization of cyclic olefins, such as dicyclopentadiene, are disclosed. The catalyst system contains a transition metal hydrotrispyrazolylborate complex having the formula:Tp--M--L.sub.3wherein Tp is a hydrotrispyrazolylborate ligand, M is tungsten or molybdenum, and L is independently a ligand selected from the group consisting of oxo, phenoxy, alkoxy, and halides, provided that at least one L is a halide, and a co-catalyst.Type: GrantFiled: December 29, 1992Date of Patent: May 17, 1994Assignee: Shell Oil CompanyInventor: Donald R. Kelsey
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Patent number: 5294582Abstract: As a curing catalyst of epoxy resins, superacid salts of an N,N'-di- or N,N',N'-trisubstitued urea, the urea component of which is produced by reacting an organic isocyanate and a primary or secondary amine, at least one of which is monofunctional, are soluble in conventional organic solvents compatible with epoxy resins and catalyze the cationic polymerization reaction of epoxy resins at room temperature.Type: GrantFiled: June 14, 1993Date of Patent: March 15, 1994Assignee: Nippon Paint Co., Ltd.Inventors: Tadafumi Miyazono, Koji Tabuchi
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Patent number: 5286372Abstract: A process for treating a hydrocarbon fraction which contains mercaptans has been developed. The process uses a novel catalyst which is composed of a metal chelate dispersed on a basic support which is either a solid solution of metal oxides or a layered double hydroxide (LDH). In the process the hydrocarbon fraction is contacted with the catalyst in the presence of an oxidizing agent and a polar compound. Examples of these polar compounds are water and alcohols, with methanol being especially preferred. The process is unique in that the solid solution or LDH are solid bases which eliminates the need for a liquid base. Optionally, an onium compound may be used as a catalyst promoter.Type: GrantFiled: April 9, 1993Date of Patent: February 15, 1994Assignee: UOPInventors: Blaise J. Arena, Jennifer S. Holmgren, Barret A. Ferm
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Patent number: 5283043Abstract: There is provided a method for preparing organic-swelled layered silicate by direct crystallization from an alkaline reaction mixture containing a source of silicon oxide and organic onium compound, e.g., a cetyltrimethylammonium salt. Layered silicates containing interlayer polymeric chalcogenide are prepared by contacting the organic-swelled layered silicate with a source of polymeric chalcogenide, e.g., tetraethylorthosilicate.Type: GrantFiled: April 16, 1992Date of Patent: February 1, 1994Assignee: Mobil Oil Corp.Inventors: Ivy D. Johnson, Michael E. Landis
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Patent number: 5278120Abstract: 1. A catalyst system comprising1) an alkali metal or tetralkylammonium carboxylate having the formula ##STR1## and 2) a strontium, barium or zinc carboxylate having the formula ##STR2## wherein M represents an alkali metal or tetralkylammonium, Q represents strontium, barium or zinc and R.sub.1, R.sub.2 and R.sub.3 are the same or different and represent H or lower alkyl, cycloalkyl, phenyl or alkylphenyl and wherein the molar ratio of the alkali metal or tetralkylammonium carboxylate to the strontium, barium or zinc carboxylate is 1:1.1-10. The catalyst system is in particular useful for preparing molded objects according to the SRIM process.Type: GrantFiled: September 9, 1991Date of Patent: January 11, 1994Assignee: Imperial Chemical Industries PLCInventors: Berend Eling, Dominique M. Nachtergaele