With Metal Halide Patents (Class 502/169)
  • Patent number: 5350726
    Abstract: 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: Grant
    Filed: September 3, 1993
    Date of Patent: September 27, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Timothy D. Shaffer
  • Patent number: 5344804
    Abstract: 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: Grant
    Filed: July 21, 1992
    Date of Patent: September 6, 1994
    Assignee: Shell Research Limited
    Inventors: Willem Sjardijn, Josepha M. E. Seelen-Kruijssen
  • Patent number: 5308819
    Abstract: 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: Grant
    Filed: July 14, 1993
    Date of Patent: May 3, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Benoit Pugin, Felix Spindler, Manfred Muller
  • Patent number: 5292986
    Abstract: 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: Grant
    Filed: April 20, 1992
    Date of Patent: March 8, 1994
    Assignee: Phillips Petroleum Company
    Inventor: Ronald G. Abbott
  • Patent number: 5283381
    Abstract: 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: Grant
    Filed: April 26, 1993
    Date of Patent: February 1, 1994
    Assignee: Solvay Fluor und Derivate GmbH
    Inventors: Johannes Eicher, Karl-Heinz Fazniewscy, Werner Rudolph
  • Patent number: 5280001
    Abstract: 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: Grant
    Filed: October 5, 1992
    Date of Patent: January 18, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Chung C. Tso, Robert L. Wynn
  • Patent number: 5278305
    Abstract: 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: Grant
    Filed: December 31, 1992
    Date of Patent: January 11, 1994
    Assignee: Shell Oil Company
    Inventor: Donald R. Kelsey
  • Patent number: 5276118
    Abstract: 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: Grant
    Filed: December 31, 1992
    Date of Patent: January 4, 1994
    Assignee: Shell Oil Company
    Inventor: Donald R. Kelsey
  • Patent number: 5250486
    Abstract: 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: Grant
    Filed: May 13, 1991
    Date of Patent: October 5, 1993
    Assignee: General Electric Company
    Inventor: Timothy D. Shaffer
  • Patent number: 5242878
    Abstract: 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: Grant
    Filed: April 8, 1992
    Date of Patent: September 7, 1993
    Assignee: Akzo N.V.
    Inventor: David L. Kershner
  • Patent number: 5238895
    Abstract: 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: Grant
    Filed: March 16, 1992
    Date of Patent: August 24, 1993
    Assignee: Eniricerche S.p.A. and Snamprogetti S.p.A.
    Inventors: Mario Marchionna, Massimo Lami
  • Patent number: 5235010
    Abstract: 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: Grant
    Filed: October 21, 1991
    Date of Patent: August 10, 1993
    Assignees: Akzo N.V., Saint Peter S.r.l.
    Inventor: Gualtiero Giovando
  • Patent number: 5214223
    Abstract: 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: Grant
    Filed: July 14, 1992
    Date of Patent: May 25, 1993
    Assignee: Kali-Chemie AG
    Inventors: Johannes Eicher, Karlheinz Fazniewscy, Werner Rudolph, Hans-Walter Swidersky
  • Patent number: 5188999
    Abstract: 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: Grant
    Filed: November 14, 1990
    Date of Patent: February 23, 1993
    Assignee: Atochem
    Inventors: Laurent Duranel, Jean Malinge, Marie-Laure Bousque
  • Patent number: 5166117
    Abstract: 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: Grant
    Filed: September 12, 1991
    Date of Patent: November 24, 1992
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Yoji Imai, Yoshinori Kadoma, Toru Kawashima
  • Patent number: 5128296
    Abstract: 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: Grant
    Filed: July 1, 1991
    Date of Patent: July 7, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Michael S. Matson, Harold J. Swindell
  • Patent number: 5116931
    Abstract: 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: Grant
    Filed: September 28, 1990
    Date of Patent: May 26, 1992
    Assignee: Olin Corporation
    Inventors: John W. Reisch, Deborah M. Capone
  • Patent number: 5108971
    Abstract: 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: Grant
    Filed: November 14, 1990
    Date of Patent: April 28, 1992
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Toshio Yamazaki, Masaaki Yamaya, Hideyoshi Yanagisawa, Masayuki Takahashi
  • Patent number: 5099061
    Abstract: 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: Grant
    Filed: September 11, 1990
    Date of Patent: March 24, 1992
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Maurice S. Brookhart, Sylviane Sabo-Etienne
  • Patent number: 5081290
    Abstract: 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: Grant
    Filed: June 21, 1990
    Date of Patent: January 14, 1992
    Assignee: Amoco Corporation
    Inventors: Walter Partenheimer, Diane J. Graziano
  • Patent number: 5079206
    Abstract: 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: Grant
    Filed: June 25, 1990
    Date of Patent: January 7, 1992
    Assignee: Imperial Chemical Industries plc
    Inventors: Denis G. H. Ballard, Anthony Pickering, Peter J. I. Runciman, Rowena J. Sellens, Nicholas J. Walton
  • Patent number: 5057476
    Abstract: 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: Grant
    Filed: August 22, 1990
    Date of Patent: October 15, 1991
    Assignee: Dow Corning Toray Silicone Company, Ltd.
    Inventors: Toshio Saruyama, Hideko Takeda, Atshushi Togashi
  • Patent number: 5055439
    Abstract: 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: Grant
    Filed: December 27, 1989
    Date of Patent: October 8, 1991
    Assignee: International Business Machines Corporation
    Inventors: Robert D. Allen, William D. Hinsberg, III., Logan L. Simpson, Robert J. Twieg, Gregory M. Wallraff, Carlton G. Willson
  • Patent number: 5028737
    Abstract: 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: Grant
    Filed: February 22, 1990
    Date of Patent: July 2, 1991
    Assignee: Amoco Corporation
    Inventor: Paul A. Sanchez
  • Patent number: 5017541
    Abstract: 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: Grant
    Filed: June 27, 1990
    Date of Patent: May 21, 1991
    Assignee: UOP
    Inventors: Robert J. Schmidt, Robert S. Haizmann, Mark R. Ford, C. David Low, Frank H. Adams
  • Patent number: 4983559
    Abstract: 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: Grant
    Filed: July 3, 1989
    Date of Patent: January 8, 1991
    Assignee: Europeene de Retraitement de Catalyseurs Eurecat
    Inventor: Georges Berrebi
  • Patent number: 4925918
    Abstract: 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: Grant
    Filed: September 27, 1988
    Date of Patent: May 15, 1990
    Assignee: The British Petroleum Company p.l.c.
    Inventors: Stephen L. Brown, Andrew R. Lucy
  • Patent number: 4894356
    Abstract: 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: Grant
    Filed: December 19, 1988
    Date of Patent: January 16, 1990
    Assignee: Monsanto Company
    Inventor: Christopher J. Hardiman
  • Patent number: 4883824
    Abstract: 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: Grant
    Filed: February 9, 1989
    Date of Patent: November 28, 1989
    Assignee: Fiberglas Canada, Inc.
    Inventors: Paul J. Meunier, James Lunt, Edwin J. MacPherson
  • Patent number: 4879266
    Abstract: 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: Grant
    Filed: July 14, 1988
    Date of Patent: November 7, 1989
    Assignee: Texaco Inc.
    Inventor: Ajit K. Bhattacharya
  • Patent number: 4868328
    Abstract: 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: Grant
    Filed: November 20, 1987
    Date of Patent: September 19, 1989
    Assignee: Shell Oil Company
    Inventor: Eit Drent
  • Patent number: 4820674
    Abstract: 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: Grant
    Filed: January 27, 1988
    Date of Patent: April 11, 1989
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Kouji Shiozawa, Yoshiharu Okumura, Chihiro Imai, Nobukazu Okamoto
  • Patent number: 4804798
    Abstract: 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: Grant
    Filed: July 27, 1987
    Date of Patent: February 14, 1989
    Assignee: Montedison S.p.A.
    Inventor: Enrico Albizzati
  • Patent number: 4795729
    Abstract: 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: Grant
    Filed: September 14, 1987
    Date of Patent: January 3, 1989
    Assignee: The Dow Chemical Company
    Inventor: Nicholas M. Irving
  • Patent number: 4788083
    Abstract: 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: Grant
    Filed: November 17, 1986
    Date of Patent: November 29, 1988
    Assignee: Ashland Oil, Inc.
    Inventors: Laurence G. Dammann, Gary M. Carlson
  • Patent number: 4786753
    Abstract: 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: Grant
    Filed: May 18, 1987
    Date of Patent: November 22, 1988
    Assignee: Amoco Corporation
    Inventors: Walter Partenheimer, Wayne P. Schammel
  • Patent number: 4774214
    Abstract: 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: Grant
    Filed: December 30, 1987
    Date of Patent: September 27, 1988
    Assignee: Texas Alkyls, Inc.
    Inventors: Dennis B. Malpass, Andrzej M. Piotrowski, Michael J. Breen
  • Patent number: 4711866
    Abstract: 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: Grant
    Filed: February 5, 1986
    Date of Patent: December 8, 1987
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Irving Kuntz
  • Patent number: 4698451
    Abstract: 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: Grant
    Filed: June 17, 1986
    Date of Patent: October 6, 1987
    Assignee: Ethyl Corporation
    Inventor: Steven P. Diefenbach
  • Patent number: 4690912
    Abstract: 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: Grant
    Filed: October 14, 1983
    Date of Patent: September 1, 1987
    Assignee: Monsanto Company
    Inventors: Frank E. Paulik, Arnold Hershman, Walter R. Knox, James F. Roth
  • Patent number: 4595746
    Abstract: 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: Grant
    Filed: December 17, 1984
    Date of Patent: June 17, 1986
    Assignee: Monsanto Company
    Inventors: James D. Gabbert, Ross M. Hedrick
  • Patent number: 4587305
    Abstract: 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: Grant
    Filed: October 9, 1984
    Date of Patent: May 6, 1986
    Assignee: Monsanto Company
    Inventors: Albert Y. Garner, James D. Gabbert, Ross M. Hedrick
  • Patent number: 4582817
    Abstract: 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: Grant
    Filed: March 6, 1984
    Date of Patent: April 15, 1986
    Assignee: National Distillers and Chemical Corporation
    Inventor: Ronnie M. Hanes
  • Patent number: 4568660
    Abstract: 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: Grant
    Filed: November 16, 1984
    Date of Patent: February 4, 1986
    Assignee: Hercules Incorporated
    Inventor: Daniel W. Klosiewicz
  • Patent number: 4539306
    Abstract: 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: Grant
    Filed: February 13, 1984
    Date of Patent: September 3, 1985
    Assignee: Ashland Oil, Inc.
    Inventor: Biau-Hung Chang
  • Patent number: 4537871
    Abstract: 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: Grant
    Filed: April 23, 1984
    Date of Patent: August 27, 1985
    Assignee: The Halcon SD Group, Inc.
    Inventor: Nabil Rizkalla
  • Patent number: 4504637
    Abstract: 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: Grant
    Filed: December 13, 1983
    Date of Patent: March 12, 1985
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Akinobu Shiga, Toshio Sasaki, Junpei Kojima
  • Patent number: 4504674
    Abstract: 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: Grant
    Filed: April 18, 1983
    Date of Patent: March 12, 1985
    Assignee: E. I. DuPont de Nemours & Co.
    Inventor: Ronald J. McKinney
  • Patent number: 4497904
    Abstract: 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: Grant
    Filed: June 16, 1983
    Date of Patent: February 5, 1985
    Assignee: BP Chimie Societe Anonyme
    Inventors: Alain Blaya, Pierre Crouzet, Stylianos Sandis, Jean C. Bailly
  • Patent number: 4490475
    Abstract: 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: Grant
    Filed: June 16, 1983
    Date of Patent: December 25, 1984
    Assignee: BP Chimie Societe Anonyme
    Inventors: Jean C. Bailly, Stylianos Sandis