With Metal Halide Patents (Class 502/169)
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Patent number: 5350726Abstract: A carbocationic catalyst composition comprising an initiator of water, a tertiary alkyl or aralkyl halide, ester, ether, carboxylic acid, acid halide or a polymeric halide and a co-initiator of an alkoxy metal halide, is used to produce narrow molecular weight distribution olefin polymers particularly isobutylene/para-methyl-styrene copolymers.Type: GrantFiled: September 3, 1993Date of Patent: September 27, 1994Assignee: Exxon Chemical Patents Inc.Inventor: Timothy D. Shaffer
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Patent number: 5344804Abstract: A catalyst system for the polymerization of cyclic olefins, comprising(1) a tungsten compound which is obtainable by combining a tungsten halide and/or a tungsten oxyhalide with a phenol compound which is substituted with a bulky alkyl group at the positions ortho with respect to the hydroxyl group;(2) one or more compounds of the general formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each represent an optionally substituted alkoxy group in the range of from 2 to 8 carbon atoms and preferably from 2 to 4 carbon atoms, and wherein at most one of the symbols R.sup.1, R.sup.2 and R.sup.3 may represent hydrogen or halogen and preferably chlorine, the compound of formula I being substantially free of organo-tin compounds;(3) a boron halide,and a process for in mould polymerization using such catalysts.Type: GrantFiled: July 21, 1992Date of Patent: September 6, 1994Assignee: Shell Research LimitedInventors: Willem Sjardijn, Josepha M. E. Seelen-Kruijssen
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Patent number: 5308819Abstract: Compounds where a solid carrier material which contains diphosphine rhodium or iridium complexes fixed on the surface thereof, of which the carrier material has the formula IV or IVa: ##STR1## wherein Y denotes two monoolefin ligands or a diene ligand, M is Ir(I) or Rh(i), Z is --Cl, --Br or -I, A.crclbar. is the anion of an oxyacid or complex acid, T is a solid carrier material, r is 0, 1 or 2, and R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are as defined in claim 1. These materials are heterogeneous and separable catalysts for the asymmetrical hydrogenation of prochiral compounds containing carbon double bonds or carbon/hetero atom double bonds, for example ketones and imines.Type: GrantFiled: July 14, 1993Date of Patent: May 3, 1994Assignee: Ciba-Geigy CorporationInventors: Benoit Pugin, Felix Spindler, Manfred Muller
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Patent number: 5292986Abstract: A novel alkylation catalyst is described which is used in processes for alkylating olefin hydrocarbons with isoparaffin hydrocarbons to produce high octane alkylate products suitable for use as a blending component of gasoline motor fuel. The novel catalyst comprises a mixture of a Lewis acid, a strong Bronsted acid, and a predominant amount of a weaker acid. The novel alkylation catalyst is utilized in a novel process for alkylating olefin hydrocarbons with isoparaffin hydrocarbons. Specifically the novel catalyst comprises antimony pentaflouride, trifluoromethanesulfonic acid and a predominant amount of methanesulfonic acid.Type: GrantFiled: April 20, 1992Date of Patent: March 8, 1994Assignee: Phillips Petroleum CompanyInventor: Ronald G. Abbott
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Patent number: 5283381Abstract: A process for preparing fluorine-containing ethane derivatives using hydrogen fluoride and a catalytically active formulation comprising a tantalum fluorosulfonate compound or a niobium fluorosulfonate compound is described. The process is particularly suitable for preparing ethane derivatives which contain a CF.sub.3 group, for example for preparing CF.sub.3 CHCl.sub.2 (R123) from perchloroethylene.Type: GrantFiled: April 26, 1993Date of Patent: February 1, 1994Assignee: Solvay Fluor und Derivate GmbHInventors: Johannes Eicher, Karl-Heinz Fazniewscy, Werner Rudolph
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Patent number: 5280001Abstract: Oxidation of alkylaromatics having a benzylic hydrogen atom is catalyzed by a catalyst comprising a palladium salt, a metal persulfate, a third metal salt, and a tin salt in a carboxylic acid for a period of time sufficient to convert the alkylaromatics to their corresponding oxidized derivatives. The catalyst is prepared by preheating the palladium salt and the metal persulfate at a temperature sufficient to provide the desired catalytic activity followed by addition of the third metal salt and the tin salt.Type: GrantFiled: October 5, 1992Date of Patent: January 18, 1994Assignee: Phillips Petroleum CompanyInventors: Chung C. Tso, Robert L. Wynn
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Patent number: 5278305Abstract: A catalyst and process for the polymerization of cyclic olefins, such as dicyclopentadiene, are disclosed. The catalyst comprises the reaction product of a transition metal halide and a 1,4-hydroquinone of the general formula: ##STR1## wherein R is independently selected from the group of hydrogen, C.sub.1-12 alkyl, C.sub.6-20 aryl, halide, and C.sub.1-6 haloalkyl. Optional co-catalysts include borohydrides, organo tin hydrides and organo aluminum compounds. Polymerization can be carried out in a reaction injection molding process to prepare a molded article.Type: GrantFiled: December 31, 1992Date of Patent: January 11, 1994Assignee: Shell Oil CompanyInventor: Donald R. Kelsey
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Patent number: 5276118Abstract: A catalyst and process for the metathesis polymerization of cyclic olefins, such as dicyclopentadiene, are disclosed. The catalyst comprises the reaction product of a transition metal halide preferably tungsten, molybdenum, or tantalum halides and a diaryl carbinol of the formula ##STR1## wherein G is independently C.sub.1-12 alkyl, C.sub.1-12 alkoxy, C.sub.1-12 alkylamino, C.sub.6-20 aryl, halide, or C.sub.1-6 haloalkyl; g is independently 0 to 4; R is independently hydrogen or G or the R's are combined as a single bond or as a bridging group X, where X is CH.sub.2, CH.sub.2 CH.sub.2, O, S, SO, SO.sub.2 or NR.sup.1, and R.sup.1 is H or C.sub.1-6 alkyl. Optional co-catalysts include borohydrides, organo tin hydrides and organo aluminum compounds. Polymerization can be carried out in a reaction injection molding process to prepare a molded article.Type: GrantFiled: December 31, 1992Date of Patent: January 4, 1994Assignee: Shell Oil CompanyInventor: Donald R. Kelsey
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Patent number: 5250486Abstract: The invention provides a process for producing a polyphenylene ether by subjecting a 2,6-disubstituted phenol to oxidative coupling by introducing oxygen in the presence of a catalyst system which comprises a manganese compound, a chelant, a base, and an alpha,beta-unsaturated ketone, a beta-diketone, or a vinyl ether. The polyphenylene oxide produced has substantially no amine odor and more stable molecular weight, and is suitable for blending with styrenic or other resins to make thermoplastic resin blends of low odor and good physical properties.Type: GrantFiled: May 13, 1991Date of Patent: October 5, 1993Assignee: General Electric CompanyInventor: Timothy D. Shaffer
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Patent number: 5242878Abstract: Polyketones can be formed from carbon monoxide and at least one olefin by using, as a catalytic complex, a catalyst which comprises a Group VIII metal, an anion of an acid having a pK.sub.a of less than about four, and a tin tetradentate phosphine ligand, preferably of the formula Sn(RPR'.sub.2).sub.4 where R is methylene and R' is phenyl.Type: GrantFiled: April 8, 1992Date of Patent: September 7, 1993Assignee: Akzo N.V.Inventor: David L. Kershner
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Patent number: 5238895Abstract: A catalyst system for the liquid-phase production of methanol from synthesis gas is described, consisting of:one or more copper compounds;one or more alkoxides of the lanthanum group of formula (R.sub.1 O).sub.x Ln and/or one or more inorganic oxides of the lanthanum and/or aluminum group;one or more alkaline and/or alkaline-earth alkoxides of formula (R.sub.a O).sub.x M,if at least one alkoxide of the lanthanum group is present, then one or more alkoxides of the titanium group of formula (R.sub.t O).sub.x T,where R.sub.1, R.sub.a and R.sub.t, which can be the same or different, are C.sub.1 -C.sub.10 alkyl groups,M is the alkaline or alkaline-earth metal,Ln is an element of the lanthanum group,T is an element of the titanium group,x is equal to the valency of the metal or element.Type: GrantFiled: March 16, 1992Date of Patent: August 24, 1993Assignee: Eniricerche S.p.A. and Snamprogetti S.p.A.Inventors: Mario Marchionna, Massimo Lami
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Patent number: 5235010Abstract: An accelerator composition for the curing of unsaturated maleic, allylic, vinylic and epoxy-type polyester resins is disclosed. The accelerator composition includes a complex of a salt of a metal selected from lithium, copper, manganese, magnesium, vanadium, iron and cobalt, with an oxygen-containing compound which is capable of forming a complex with the metal salt and includes at least one functional group selected from aldehyde, ketone, ether, ester and alcohol. Also disclosed are a curable resin composition including the foregoing accelerators and a curing process employing these accelerators.Type: GrantFiled: October 21, 1991Date of Patent: August 10, 1993Assignees: Akzo N.V., Saint Peter S.r.l.Inventor: Gualtiero Giovando
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Patent number: 5214223Abstract: A method of preparing fluorine-containing ethane derivatives using a catalyst mixture which comprises a metal halide and a sulfonic acid derivative is described. The method is particularly well suited for preparing CF.sub.3 CHCl.sub.2 (R123) from perchloroethylene and for preparing CF.sub.3 CH.sub.2 F (R134a) from trifluoroethylene.Type: GrantFiled: July 14, 1992Date of Patent: May 25, 1993Assignee: Kali-Chemie AGInventors: Johannes Eicher, Karlheinz Fazniewscy, Werner Rudolph, Hans-Walter Swidersky
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Patent number: 5188999Abstract: A catalyst support in the form of solid particles consisting essentially of a complex of MgCl.sub.2 and alcohol of the formula MgCl.sub.2, x(n-BuOH) in which 0.1.ltoreq.x.ltoreq.2, and which has a specific surface of 1 to 20 m.sup.2 /g and a particle porosity of 1 to 2 cm.sup.3 /g, and the process of making such support, and catalytic components comprising such support, a transition metal, and optionally, an electron donor.Type: GrantFiled: November 14, 1990Date of Patent: February 23, 1993Assignee: AtochemInventors: Laurent Duranel, Jean Malinge, Marie-Laure Bousque
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Patent number: 5166117Abstract: A polymerization initiator composition controlling polymerization at interface, comprising a (thio)barbituric acid compound represented by the general formula I: ##STR1## wherein R.sup.1 is an alkyl group of 1 to 3 carbon atoms, R.sup.2 and R.sup.3 are independently hydrogen atom or an alkyl group of 1 to 3 carbon atoms, and X is oxygen atom or sulfur atom, and (a) a metal halide represented by the general formula, MY.sub.n wherein M is Cu or Fe, Y is halogen atom, and n is an integer of 2 when M is Cu or an integer of 3 when M is Fe, or (b) a halogen ion-forming compound and M.sup.m -forming compound wherein M is Cu or Fe and m is 2+ when M is Cu or 3+ when M is Fe, and a curable composition comprising the (thio)barbituric acid and radically polymerizable monomer.Type: GrantFiled: September 12, 1991Date of Patent: November 24, 1992Assignee: Terumo Kabushiki KaishaInventors: Yoji Imai, Yoshinori Kadoma, Toru Kawashima
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Patent number: 5128296Abstract: Cyclic polyenes are selectively hydrogenated to cyclic monoenes under suitable hydrogenation conditions in the presence of an activated ruthenium catalyst complexes. The ruthenium catalyst complex is activated by hydrogenating a minimal amount of cyclic polyene under suitable hydrogenation conditions.Type: GrantFiled: July 1, 1991Date of Patent: July 7, 1992Assignee: Phillips Petroleum CompanyInventors: Michael S. Matson, Harold J. Swindell
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Patent number: 5116931Abstract: This invention relates to a method of fabricating a thermoset elastomer which comprises the steps of: (a) fabricating a polyol having a molecular weight of between about 400 and about 15,000 and having a level of end group unsaturation of not greater than 0.04 milliequivalents per gram of polyol, said polyol being fabricated in the presence of a double metal cyanide catalyst, (b) reacting said polyol with a polyisocynate to produce an isocyanate-terminated prepolymer, and (e) reacting said isocyanate-terminated prepolymer with a chain extender other than ethylene glycol in a mold in order to produce the elastomer. Also claimed is the elastomer produced by the above method utilizing a one-shot technique.Type: GrantFiled: September 28, 1990Date of Patent: May 26, 1992Assignee: Olin CorporationInventors: John W. Reisch, Deborah M. Capone
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Patent number: 5108971Abstract: The platinum catalyst composition comprises a diolefin component represented by the following general formula:CH.sub.2 .dbd.CH--R--CH.dbd.CH.sub.2wherein R is a divalent saturated hydrocarbon radical, and a platinum compound component. The platinum catalyst composition is extremely useful for hydrosilylation of an organosilicon compound having a .tbd.SiH radical with an olefin. When used for the hydrosilylation reaction, it inhibits effectively the isomerization of the starting material olefin, thereby enabling the intended organosilicon compound to be obtained in a high yield.Type: GrantFiled: November 14, 1990Date of Patent: April 28, 1992Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Toshio Yamazaki, Masaaki Yamaya, Hideyoshi Yanagisawa, Masayuki Takahashi
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Patent number: 5099061Abstract: A process is disclosed for preparing functionalized linear olefins by dimerizing terminal olefins in the presence of a cationic rhodium compound. Novel rhodium compounds useful in this process are also disclosed.Type: GrantFiled: September 11, 1990Date of Patent: March 24, 1992Assignee: The University of North Carolina at Chapel HillInventors: Maurice S. Brookhart, Sylviane Sabo-Etienne
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Patent number: 5081290Abstract: There is provided a process for the partial oxidation of a polymethylbenzene to the corresponding aromatic polycarboxylic acid, which process comprises contacting in a reaction zone said polymethylbenzene with molecular oxygen in the presence of an oxidation catalyst comprising at least one heavy-metal compound, said heavy-metal compound being acetate free, a source of bromine, and a non-metal acetate compound, the concentration of acetate in the reaction zone being employed to control the rate of oxidation and the selectivity of oxidation.There is also provided the catalyst that is employed in the process.Type: GrantFiled: June 21, 1990Date of Patent: January 14, 1992Assignee: Amoco CorporationInventors: Walter Partenheimer, Diane J. Graziano
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Patent number: 5079206Abstract: A catalyst for addition polymerization comprising:(a) an (initiator) first component of Formula (I):MX(Y.sub.n)Z.sub.p (I)whereinM is Si, Ge or Sn;n is O or an integer, and p is an integer such that (n+p)=3;X is a radical ##STR1## where Q and Q.sup.1 are each independently N, P or As;Q.sup.2 is O, S, NR or PR where R is C.sub.1-4 alkyl;R.sup.1 is H or optionally substituted hydrocarbyl; andR.sup.2 and R.sup.3 are each independently optionally substituted hydrocarbyl, or R.sup.2 and R.sup.3 together are optionally substituted aliphatic hydrocarbadiyl;all such R.sup.1, R.sup.2 and R.sup.3 being inert in the process conditions of the present invention;Y is A or OA where A is optionally substituted hydrocarbyl inert in the process conditions of the present invention, or trialkylsilylalkyl; andZ is independently any group as definedd for Y, or an organic polymer radical comprising further MXY.sub.n moieties; orp is 2 andZ.sub.2 is a group Z.sup.1 .sub.2 of the formula --OSiR.sup.5 R.sup.8 O-- where R.sup.5, R.sup.Type: GrantFiled: June 25, 1990Date of Patent: January 7, 1992Assignee: Imperial Chemical Industries plcInventors: Denis G. H. Ballard, Anthony Pickering, Peter J. I. Runciman, Rowena J. Sellens, Nicholas J. Walton
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Patent number: 5057476Abstract: A platinum catalyst composition having improved thermal stability, and all of the utilities of platinum catalyst compositions of trhe art, is provided by mixing certain organosiloxanes which contain aryl and alkenyl groups, such as 1,3-divinyl-1,3-diphenyldimethyldisiloxane, in a quantity of at least 2 moles, with a platinum complex having as a ligand an organosiloxane which contains alkyl and alkenyl groups, such as 1,3-divinyltetramethyldisiloxane (or a mixture of said platinum complex and said organosiloxane), in a quantity of 1 mole of platinum atoms. In a preferred embodiment the mixture is distilled in vacuo to remove part or all of the organosiloxane which contains alkyl and alkenyl groups, and most preferably to remove at least a portion of the complexed organosiloxane which contains alkyl and alkenyl groups.Type: GrantFiled: August 22, 1990Date of Patent: October 15, 1991Assignee: Dow Corning Toray Silicone Company, Ltd.Inventors: Toshio Saruyama, Hideko Takeda, Atshushi Togashi
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Patent number: 5055439Abstract: A composition including an initiator which generates acid upon exposure to radiation in the presence of a sensitizer. The composition may be mixed with an acid sensitive polymer or prepolymer to make a visible light or laser imageable photoresist. The sensitizer has phenylethynyl and methoxy substituents which, when properly positioned, allow it to utilize all of the visible argon ion laser lines.Type: GrantFiled: December 27, 1989Date of Patent: October 8, 1991Assignee: International Business Machines CorporationInventors: Robert D. Allen, William D. Hinsberg, III., Logan L. Simpson, Robert J. Twieg, Gregory M. Wallraff, Carlton G. Willson
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Patent number: 5028737Abstract: An oxidation process is provided for converting dixylylpropane to isopropylidene bis(phthalic acid) in good yields with minimal by-product production, especially trimellitic acid production. The oxidation process employs an oxidation catalyst that includes zirconium as well as cobalt, manganese, and bromine.Type: GrantFiled: February 22, 1990Date of Patent: July 2, 1991Assignee: Amoco CorporationInventor: Paul A. Sanchez
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Patent number: 5017541Abstract: An improved catalyst particle is disclosed for the conversion of hydrocarbons which comprises a refractory inorganic-oxide support, a Friedel-Crafts metal halide, and a surface-layer platinum-group metal component, wherein the concentration of platinum-group metal component on the surface layer of each catalyst particle is at least 1.5 times the concentration in the central core of the catalyst particle. An isomerization process also is disclosed which is particularly effective for the conversion of C.sub.4 -C.sub.7 alkanes.Type: GrantFiled: June 27, 1990Date of Patent: May 21, 1991Assignee: UOPInventors: Robert J. Schmidt, Robert S. Haizmann, Mark R. Ford, C. David Low, Frank H. Adams
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Patent number: 4983559Abstract: Presulfurization of a catalyst used, e.g., for hydrocarbon conversion, wherein a polysulfide is employed as the sulfurization agent. In the first stage of the presulfurization, phosphorous, a halogen, or compounds thereof are introduced.Type: GrantFiled: July 3, 1989Date of Patent: January 8, 1991Assignee: Europeene de Retraitement de Catalyseurs EurecatInventor: Georges Berrebi
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Patent number: 4925918Abstract: A process for preparing interpolymers of an olefin(s) and carbon monoxide (polyketones) is provided. The process employs a palladium catalyst prepared by reacting together a palladium source, a bidentate amine, phosphine, arsine or stibine and a source of a borate anion. The catalyst effects fast polymerization of the olefin(s) and carbon monoxide in, e.g. methanol or ethoxyethanol solvent. By using the catalyst a lower catalyst decactivation on recycle is observed relative to previously described systems.Type: GrantFiled: September 27, 1988Date of Patent: May 15, 1990Assignee: The British Petroleum Company p.l.c.Inventors: Stephen L. Brown, Andrew R. Lucy
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Patent number: 4894356Abstract: Metal drier compositions comprising at least one soluble compound of niobium, zirconium, titanium, tungsten, or aluminum used in coating compositions of free radical polymerizable compounds to extend pot life and lower propensity to yellowing of the dried composition.Type: GrantFiled: December 19, 1988Date of Patent: January 16, 1990Assignee: Monsanto CompanyInventor: Christopher J. Hardiman
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Patent number: 4883824Abstract: The invention relates to the preparation of closed cell phenolic resin foams produced from compositions of phenol-aldehyde resole resins, and the foam products thus prepared. More particularly the present invention relates to the preparation of phenolic resin foams by a method employing a novel modified phenolic foam catalyst. The invention also relates to these modified phenolic foam catalysts which include an aromatic sulphonic acid and resorcinol.Type: GrantFiled: February 9, 1989Date of Patent: November 28, 1989Assignee: Fiberglas Canada, Inc.Inventors: Paul J. Meunier, James Lunt, Edwin J. MacPherson
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Patent number: 4879266Abstract: An organic carbonate such as dimethyl carbonate is prepared by reacting an alcohol such as methanol, oxygen, and carbon monoxide in the presence of a catalyst system containing Cu(OMe)Cl as catalyst and boron trifluoride, calcium chloride, benzyltriethylammonium chloride, etc. as promoters.Type: GrantFiled: July 14, 1988Date of Patent: November 7, 1989Assignee: Texaco Inc.Inventor: Ajit K. Bhattacharya
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Patent number: 4868328Abstract: Process for the selective oxidative carbonylation of a conjugated diene with carbon monoxide and an alcohol in a quantity of at least 2 mol equivalents per mol diene, in the presence of a catalyst system which comprises the following components:(a) a compound of a metal, selected from one or more platinum group metals,(b) an oxidizing agent in the form of quinone and/or derivatives thereof, and(c) a compound of a metal, selected from manganese or vanadium.Type: GrantFiled: November 20, 1987Date of Patent: September 19, 1989Assignee: Shell Oil CompanyInventor: Eit Drent
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Patent number: 4820674Abstract: A process for preparing a hydrosilylation catalyst by dissolving chloroplatinic acid H.sub.2 PtCl.sub.6 in a cyclic ether or cyclic ester containing at least 3 carbon atoms, and maintaining the resulting solution at a temperature of at least 30.degree. C.Type: GrantFiled: January 27, 1988Date of Patent: April 11, 1989Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Kouji Shiozawa, Yoshiharu Okumura, Chihiro Imai, Nobukazu Okamoto
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Patent number: 4804798Abstract: Polymers of alpha-olefins of formulaR--CH.dbd.CH.sub.2wherein R=alkyl of from 1 to 6 C atoms, or of their mixtures with minor amounts of ethylene are obtained by adopting catalysts comprising:(A) a solid component obtained by treating an emulsion (a) in a perfluoropolyether liquid of a liquid compound of magnesium, of titanium or of another transition metal, either liquid or in solution, with possibly using an electron-donor compound, with (b) a reducing and/or halogenating agent capable of forming an insoluble solid product, after which, if such a product is a precursor of the catalytic components, it is treated with a tetravalent-titanium halide, or with a halide of another transition metal;(B) an aluminum-alkyl compound;(C) an outer electron-donor compound (c).Type: GrantFiled: July 27, 1987Date of Patent: February 14, 1989Assignee: Montedison S.p.A.Inventor: Enrico Albizzati
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Patent number: 4795729Abstract: This invention discloses a unique catalyst for the simultaneous sterospecific preparation of high and low molecular weight isotactic poly 1,2-butylene oxide and a method of preparation of that catalyst from butylene oxide monomer and iron chloride.Type: GrantFiled: September 14, 1987Date of Patent: January 3, 1989Assignee: The Dow Chemical CompanyInventor: Nicholas M. Irving
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Patent number: 4788083Abstract: Disclosed is an activatable catalyst which is effective for the reaction of a hydroxyl compound and an isocyanate. Preferably, the catalyst is utilized in the cure of a coating composition of a polyol and a polyisocyanate. The activatable catalyst is activated in the presence of an amine activator or heat and comprises the reaction product of a metal catalyst selected from a tin catalyst, a bismuth catalyst, and mixtures thereof; and a molar excess of a complexing agent. The complexing agent is selected from a mercapto compound, a polyphenol characterized by being reactable with an isocyanate group in the presence of a tertiary amine activator, and mixtures thereof. A single polyol resin may bear both the complexing functionality and the activatable catalyst. Advantageusly, the polyol and polyisocyanate both are aliphatic.Type: GrantFiled: November 17, 1986Date of Patent: November 29, 1988Assignee: Ashland Oil, Inc.Inventors: Laurence G. Dammann, Gary M. Carlson
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Patent number: 4786753Abstract: A novel method of oxidizing di- and trimethylbenzenes with molecular oxygen to the corresponding di- or tricarboxylic acid under liquid-phase conditions is disclosed. The process is conducted at a temperature of about 100.degree. C. to 260.degree. C. This process comprises conducting the oxidation in the presence of a catalyst system comprising a source of bromine with nickel, manganese and zirconium. The benzene di- and tricarboxylic acids have wide industrial application, including the manufacture of polyesters, polyamides, and fibers and films.Type: GrantFiled: May 18, 1987Date of Patent: November 22, 1988Assignee: Amoco CorporationInventors: Walter Partenheimer, Wayne P. Schammel
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Patent number: 4774214Abstract: Novel compounds having the formulaR.sub.n Al(OR.sub.f).sub.3-nin which R is a C.sub.1 -C.sub.6 alkyl group, R.sub.f is a C.sub.1 -C.sub.6 fluoroalkyl group, and 0.ltoreq.n<3 have been found suitable as Ziegler-Natta type co-catalyst components for polymerization or co-polymerization of olefins.Type: GrantFiled: December 30, 1987Date of Patent: September 27, 1988Assignee: Texas Alkyls, Inc.Inventors: Dennis B. Malpass, Andrzej M. Piotrowski, Michael J. Breen
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Patent number: 4711866Abstract: Isobutylene homopolymers and copolymers are prepared using a catalyst system comprising a haloadamantane component and a Lewis acid. Branched polymers are prepared using polyhaloadamantanes, the branches being attached to the adamantane at the former location of the halide. The preferred catalyst systems are diethylaluminum chloride and bromoadamantane as well as polybromo, or polychloroadamantanes.Type: GrantFiled: February 5, 1986Date of Patent: December 8, 1987Assignee: Exxon Chemical Patents Inc.Inventor: Irving Kuntz
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Patent number: 4698451Abstract: Described are novel bimetallic complexes particularly useful as homogeneous catalysts for the metathesis of alkynes, and methods for the preparation of such complexes. The complexes are formed from (i) a dirhenium halide having (a) a double or triple bond between a pair of rhenium atoms, and (b) a bis(dihydrocarbylphosphino)alkane coordinated therewith, and (ii) a Group III-A alkoxide in which the alkoxy groups are perfluorinated or are substantially perfluorinated. The complexes can be produced very easily and quickly. All that is required is to establish intimate contact between components (i) and (ii), preferably in an innocuous liquid organic solvent. 3-Heptyne was metathesized in good yields by means of the complex formed from Re.sub.2 Cl.sub.4 (dppm).sub.2 and Al(OCH(CH.sub.3).sub.2).sub.3, and the complex formed from Re.sub.2 Cl.sub.6 (dppm).sub.2 and Al(OCH(CF.sub.3).sub.2).sub.3 (dppm=bis(diphenylphosphino))methane).Type: GrantFiled: June 17, 1986Date of Patent: October 6, 1987Assignee: Ethyl CorporationInventor: Steven P. Diefenbach
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Patent number: 4690912Abstract: A catalyst system having high activity and selectivity to carbonylation products comprises a rhodium-containing catalytically active component and a halogen-containing promoter component, the halogen being selected from the group consisting of bromine, iodine, bromide compounds, and iodide compounds.Type: GrantFiled: October 14, 1983Date of Patent: September 1, 1987Assignee: Monsanto CompanyInventors: Frank E. Paulik, Arnold Hershman, Walter R. Knox, James F. Roth
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Patent number: 4595746Abstract: A process for polymerizing .epsilon.-caprolactam to form a nylon-6 polymer in which a reactant stream containing .epsilon.-caprolactam and a lactam polymerization initiator is brought into polymerizing admixture with a reactant stream containing .epsilon.-caprolactam and a lactam magnesium halide, wherein sufficient 2-oxo-1-pyrrolidinyl compound is added to the admixture either as 2-pyrrolidinone, 2-oxo-pyrrolidinyl magnesium halide or 2-oxo-1-pyrrolidinyl capped initiator compound to enhance the rate of polymerization of the .epsilon.-caprolactam.Type: GrantFiled: December 17, 1984Date of Patent: June 17, 1986Assignee: Monsanto CompanyInventors: James D. Gabbert, Ross M. Hedrick
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Patent number: 4587305Abstract: Composition for use in preparing a nylon-6 block copolymer in which a solution comprising an acyl-lactam, epsilon-caprolactam and magnesium chloride is brought into reactive admixture with a solution of magnesium dilactam in epsilon-caprolactam. The acyl-lactam magnesium chloride solution is prepared by reaction of an acid halide functional material and magnesium dilactam.Type: GrantFiled: October 9, 1984Date of Patent: May 6, 1986Assignee: Monsanto CompanyInventors: Albert Y. Garner, James D. Gabbert, Ross M. Hedrick
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Patent number: 4582817Abstract: A mixture of 1,3-butadiene, carbon monoxide and a monoalkanol of the general formula ROH in which R is a straight or branched chain alkyl group of from 1 to about 12 carbon atoms is reacted in the presence of catalyst to provide alkyl nonadienoate ester at high levels of productivity and little, if any, catalyst decomposition, employing as catalyst, a palladium-ligand complex comprising:(a) a member selected from the group consisting of zerovalent palladium, a palladium-containing composition which provides zerovalent palladium under reaction conditions and palladium (II) salt;(b) a strong ligand selected from the group consisting of tertiary phosphine having a pKa in water of not greater than about 6, a phosphite of the general formula (R.sup.1 O)(R.sup.2 O)(R.sup.3 O)P in which each of R.sup.1, R.sup.2 and R.sup.3 is an alkyl group having at least 9 carbon atoms, an aryl group or an alkaryl group, an arsine of the general formula R.sup.1 R.sup.2 R.sup.3 As in which each of R.sup.1, R.sub.2 and R.sup.Type: GrantFiled: March 6, 1984Date of Patent: April 15, 1986Assignee: National Distillers and Chemical CorporationInventor: Ronnie M. Hanes
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Patent number: 4568660Abstract: A polymerization catalyst composition including ##STR1## wherein R is an alkyl group having 3 to 20 carbon atoms; m is 4 or 6 and n is 0 or 1. Preferably the composition also includes, ##STR2## wherein R.sub.1 and R.sub.2 are independently hydrogen, an alkyl or alkoxy group of form 1 to 5 carbons. Preferably r is 1; m is 4 and R is nonyl and the molar ratio of WCl.sub.m O.sub.n to ##STR3## is from about 1:1 to about 1:3.Type: GrantFiled: November 16, 1984Date of Patent: February 4, 1986Assignee: Hercules IncorporatedInventor: Daniel W. Klosiewicz
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Patent number: 4539306Abstract: A process for producing linear aldehydes or alcohols from olefins using a mixed transition metal hydroformylation catalyst wherein the catalyst comprises a mixture of transition metal compounds wherein the first component is an anionic transition metal catalyst having a charge of at least -2. The formula of the anionic compound is generally defined as M.sup.+n [H.sub.y A.sub.x L.sub.z ].sup.-n wherein A represents Fe, Ru, Os, W, Cr, Co, Rh, Ir or Mo, M is a cationic species, n is an integer greater than or equal to 2, x is an integer greater than or equal to 1, y is an integer greater than or equal to 0 and z is an integer generally corresponding to the number of available coordination bonding sites of A. The second component is a Group VIII compound, preferably a halide or carbonyl of the Group VIII compound. These compounds exhibit high selectivity toward linear products.Type: GrantFiled: February 13, 1984Date of Patent: September 3, 1985Assignee: Ashland Oil, Inc.Inventor: Biau-Hung Chang
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Patent number: 4537871Abstract: A liquid-phase catalyst is represented by the formula X:T:Z:Q, wherein X is molybdenum, tungsten or chromium, T is nickel, X and T being in zero valent form or in the form of a halide, an oxide, a carboxylate of 1 to 20 carbon atoms, a carbonyl or an hydride; Z is a halide source which is hydrogen halide, halogen, or an alkyl halide wherein the alkyl group contains 1 to 20 carbon atoms, and Q is the alkali metal component and is in the form of an iodide, a bromide, a chloride or a carboxylate as defined for X and T, the molar ratio of X to T being 0.1-10:1, the molar ratio of X+T to Q being 0.1-10:1, and the molar ratio of Z to X+T being 0.01-0.1:1.Type: GrantFiled: April 23, 1984Date of Patent: August 27, 1985Assignee: The Halcon SD Group, Inc.Inventor: Nabil Rizkalla
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Patent number: 4504637Abstract: A catalyst system for the polymerization of olefins comprising:(A) a solid catalyst component containing hydrocarbyloxy groups obtained by reacting a titanium compound represented by the general formula Ti(OR.sup.1).sub.n X.sub.3-n (wherein R.sup.1 is a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen atom, and n is a number defined by 0<n.ltoreq.3) with an ether compound and titanium tetrachloride in a slurry state in the presence of a magnesium halide, and(B) an organoaluminum compound.Type: GrantFiled: December 13, 1983Date of Patent: March 12, 1985Assignee: Sumitomo Chemical Company, LimitedInventors: Akinobu Shiga, Toshio Sasaki, Junpei Kojima
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Patent number: 4504674Abstract: Alkyl acrylate esters are dimerized to dialkyl hexenedioates in the presence of a metal-treated ruthenium compound, an alcohol, optionally a phosphine, and optionally a carboxamide. The hexenedioate products are useful to prepare adipic acid.Type: GrantFiled: April 18, 1983Date of Patent: March 12, 1985Assignee: E. I. DuPont de Nemours & Co.Inventor: Ronald J. McKinney
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Patent number: 4497904Abstract: The present invention relates to catalysts for the polymerization and copolymerization of ethylene, characterized in that they comprise a support based on magnesium chloride and possibly on aluminium chloride, of spheroidal shape, having a mean diameter by mass comprised between 10 and 100 microns and with a narrow particle size distribution, such that the ratio of the mean diameter by mass to the mean diameter by number is less than or equal to 3, on which support there has been precipitated a derivative of a transition metal of groups IV, V and VI of the Periodic Table of Elements, and a polymerization process utilizing the said catalysts.Type: GrantFiled: June 16, 1983Date of Patent: February 5, 1985Assignee: BP Chimie Societe AnonymeInventors: Alain Blaya, Pierre Crouzet, Stylianos Sandis, Jean C. Bailly
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Patent number: 4490475Abstract: The present invention relates to catalyst supports for the polymerization and co-polymerization of alpha-olefins, especially ethylene and propylene, consisting essentially of magnesium chloride, characterized in that these supports occur in the form of spheroidal particles with a mean particle size by mass comprised between 10 and 100 microns and having a narrow particle size distribution, which can be controlled, such that the ratio of the mean diameter by mass to the mean diameter by number of the particles is less than or equal to 3.0, and the process for the preparation of the said supports.Type: GrantFiled: June 16, 1983Date of Patent: December 25, 1984Assignee: BP Chimie Societe AnonymeInventors: Jean C. Bailly, Stylianos Sandis