The Chalcogen Is Part Of A -c(=x)x- Group, Wherein The X's Are The Same Or Diverse Chalcogens Patents (Class 556/114)
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Patent number: 5728364Abstract: There is provided an improved method for making synthetic hydrotalcite by first reacting a divalent metal compound with a trivalent metal oxide powder in a carboxylic acid-free, aqueous solution or suspension to form an intermediate. This intermediate is then contacted with an anion source such as carbon dioxide; a carbonate-containing compound; an acid or an ammonium salt to form a layered double hydroxide having the formula:A.sub.1-x B.sub.x (OH).sub.2 C.sub.z.mH.sub.2 O, where A represents a divalent metal cation, B represents a trivalent metal cation, C represents a mono- to polyvalent anion, and x, z and m satisfy the following conditions: 0.09<x<0.67; z=x/n, where n=the charge on the anion; and 2>m>0.5. Said layered double hydroxide is typically separated from the suspension by filtering, centrifugation, vacuum dehydration or other known means.Type: GrantFiled: April 9, 1996Date of Patent: March 17, 1998Assignee: Aluminum Company of AmericaInventors: Edward S. Martin, John M. Stinson, Vito Cedro, III, William E. Horn, Jr.
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Patent number: 5728365Abstract: There is provided a method for making a divalent inorganic anion-intercalated hydrotalcite-like material by first reacting a magnesium-containing powder and a transition alumina powder in a carboxylic acid-free aqueous suspension to form a meixnerite intermediate. This intermediate is then contacted with a divalent inorganic anion, in its acid, acid salt or ammonium salt form, to make a hydrotalcite-like material. The latter is then separated from the suspension. Representative materials include a sulfate- and metavanadate-intercalated hydrotalcite-like material.Type: GrantFiled: May 14, 1996Date of Patent: March 17, 1998Assignee: Aluminum Company of AmericaInventors: Edward S. Martin, John M. Stinson, Vito Cedro, III, William E. Horn, Jr.
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Patent number: 5728363Abstract: There is provided an improved method for making synthetic hydrotalcite by first reacting powdered magnesium oxide with a high surface area, transition alumina in a solution or suspension to form a meixnerite-like intermediate. This intermediate is then contacted with an anion source such as an acid, and most preferably carbon dioxide, to form the layered double hydroxide which is separated from the suspension by filtering, centrifugation, vacuum dehydration or other known means. On a preferred basis, the transition alumina combined with activated magnesia consists essentially of an rehydratable alumina powder having a surface area of 100 m.sup.2 /g or greater. To make related double hydroxide compounds, still other reactants such as bromides, chlorides, boric acids, or salts thereof, may be substituted for the carbon dioxide gas fed into this suspension.Type: GrantFiled: March 28, 1996Date of Patent: March 17, 1998Assignee: Aluminum Company of AmericaInventors: Edward S. Martin, John M. Stinson, William E. Horn, Jr., Vito Cedro, III
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Patent number: 5728366Abstract: There is provided a method for making monovalent organic anion-intercalated hydrotalcite-like materials by first reacting a magnesium-containing powder and a transition alumina powder in a carboxylic acid-free, aqueous suspension to form a meixnerite intermediate. This intermediate is then contacted with a monovalent organic anion to form a hydrotalcite-like material. The latter is then separated from the suspension. Representative materials include a stearate-, acetate- or benzoate-intercalated hydrotalcite-like material.Type: GrantFiled: May 14, 1996Date of Patent: March 17, 1998Assignee: Aluminum Company of AmericaInventors: Edward S. Martin, John M. Stinson, Vito Cedro, III, William E. Horn, Jr.
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Patent number: 5665671Abstract: A compound for plant defense from parasites, including fungi and bacteria, utilizing lower concentrations of Cu than available Cu-based fungicides. Until now compounds with high Cu concentration have been used, which damage the environment. This compound instead, besides containing Cu in minimal concentration, has a greater stability, due to the particular bond formed between the principal constituents. The compound is thus very valuable in the defense of plants, because it makes possible reducing treatments and it minimizes environmental risks.Type: GrantFiled: July 20, 1995Date of Patent: September 9, 1997Inventor: Roberto Zanin
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Patent number: 5663391Abstract: A process for producing a .beta. copper diketone complex which consists of the steps: (a) mixing and reacting Cu.sub.2 O, 1,1,1,5,5,5-Hexafluoro-2, 4-pentanedione, and an additional cuprous L, an electronic donator; and (b) dehydrating the crude material, which is performed at the same time and/or right after the reaction in step (a).Type: GrantFiled: March 6, 1996Date of Patent: September 2, 1997Assignee: Tri-Chemical Laboratory, Inc.Inventors: Hideaki Machida, Hiroshi Kokubun
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Patent number: 5583242Abstract: A method of inhibiting the proliferation of B cells by using inhibitors of phosphotyrosine phosphatase can be used to regulate the immune response and to treat diseases such as leukemias or lymphomas marked by malignant proliferation of B cells. The use of such inhibitors can be combined with radiation, which produces a synergistic effect. Several types of inhibitors can be used, including: (1) compounds comprising a metal coordinate-covalently bound to an organic moiety that can form a five- or six-membered ring; (2) compounds in which vanadium (IV) is coordinate-covalently bound to an organic moiety such as a hydroxamate, .alpha.-hydroxypyridinone, .alpha.-hydroxypyrone, .alpha.-amino acid, hydroxycarbonyl, or thiohydroxamate; (3) coordinate-covalent complexes of vanadyl and cysteine or a derivative thereof; (4) nonhydrolyzable phosphotyrosine phosphatase analogues; (5) phostatin; and (6) 4-(fluoromethyl)phenyl phosphate and esterified derivatives.Type: GrantFiled: May 25, 1995Date of Patent: December 10, 1996Assignee: Bristol-Myers Squibb CompanyInventor: Gary L. Schieven
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Patent number: 5583243Abstract: Novel salts are prepared wherein the cation of the salt is a divalent or trivalent cation which is an essential trace element comprising a 1:1 ratio of a complex ion formed between a trace mineral and methionine and any suitable anion, either inorganic or organic. The novel salts have the generic formula: ##STR1## Wherein R.sub.1 is methyl or ethyl, R.sub.2 is hydrogen, methyl or ethyl, R.sub.3 is hydrogen or methyl, M is a covalent or trivalent trace mineral cation, X is an anion and w is an integer to balance the anionic charge of X. These novel compounds are useful nutritional supplements, both for animals and humans, in that they provide a readily available source of a highly water soluble methionine which is an essential amino acid.Type: GrantFiled: May 19, 1995Date of Patent: December 10, 1996Assignee: Zinpro CorporationInventor: Mahmoud M. Abdel-Monem
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Patent number: 5578286Abstract: There is provided a method for making a divalent or polyvalent organic anion-intercalated hydrotalcite-like materials by first reacting a magnesium-containing powder and a transition alumina powder in an aqueous suspension to form a meixnerite intermediate. This intermediate is then contacted with a dicarboxylate or polycarboxylate anion to form a hydrotalcite-like material. The latter is then separated from the suspension. Representative materials include an oxalate-, succinate- or terephthalate-intercalated hydrotalcite-like material.Type: GrantFiled: June 7, 1995Date of Patent: November 26, 1996Assignee: Aluminum Company of AmericaInventors: Edward S. Martin, John M. Stinson, Vito Cedro, III, William E. Horn, Jr.
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Patent number: 5565491Abstract: A method of inhibiting the proliferation of B cells by using inhibitors of phosphotyrosine phosphatase can be used to regulate the immune response and to treat diseases such as leukemias or lymphomas marked by malignant proliferation of B cells. The use of such inhibitors can be combined with radiation, which produces a synergistic effect. Several types of inhibitors can be used, including: (1) compounds comprising a metal coordinate-covalently bound to an organic moiety that can form a five- or six-membered ring; (2) compounds in which vanadium (IV) is coordinate-covalently bound to an organic moiety such as a hydroxamate, .alpha.-hydroxypyridinone, .alpha.-hydroxypyrone, .alpha.-amino acid, hydroxycarbonyl, or thiohydroxamate; (3) coordinate-covalent complexes of vanadyl and cysteine or a derivative thereof; (4) nonhydrolyzable phosphotyrosine phosphatase analogues; (5) phostatin; and (6) 4-(fluoromethyl)phenyl phosphate and esterified derivatives.Type: GrantFiled: January 31, 1994Date of Patent: October 15, 1996Assignee: Bristol-Myers Squibb CompanyInventor: Gary L. Schieven
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Patent number: 5491247Abstract: A process is disclosed for the manufacture of precious metal salts by the direct reaction of a precious metal and an oxidizing agent in the presence of a nonoxidizing acid.Type: GrantFiled: November 14, 1994Date of Patent: February 13, 1996Assignee: Elf Atochem North America, Inc.Inventor: Michael D. Gernon
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Patent number: 5486538Abstract: A precious metal salt of a low molecular humic acid containing 1 to 5% by weight of the precious metal processes for their preparation and a method of stabilizing alkali metal humate and their medical uses.Type: GrantFiled: August 29, 1994Date of Patent: January 23, 1996Assignee: Rutgerswerke AktiengesellschaftInventors: Bernhard Seubert, Anton F. Haase
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Patent number: 5403802Abstract: Iridium catalyst compositions for the metathesis of functionalized and unfunctionalized acyclic olefins.Type: GrantFiled: June 28, 1994Date of Patent: April 4, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: Jerald Feldman, Marcia B. France
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Patent number: 5371258Abstract: A method for preparing cuprous carboxylates (Cu(I) carboxylates) is provided wherein Cu(II) carboxylates are reacted with copper powder in an aromatic solvent under a reducing atmosphere, optionally in the presence of at least one of a carboxylic acid or carboxylic acid anhydride. Also, a method for prepared desired Cu(II) carboxylates is provided wherein a Cu(II) carboxylate having fewer carbon atoms is reacted with a carboxylic acid corresponding to the desired Cu(II) carboxylate. The invention method reactions achieve good conversions with rapid rates of reaction. The Cu(I) carboxylates produced according to the invention method are useful as reagents or in the preparation of olefin complexing reagents.Type: GrantFiled: December 31, 1991Date of Patent: December 6, 1994Assignee: Phillips Petroleum CompanyInventors: Marvin M. Johnson, Gerhard P. Nowack, Ted H. Cymbaluk
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Patent number: 5326891Abstract: Novel hydrophobicized double-layer hydroxide compounds, processes for their production by reaction of double-layer hydroxides with aliphatic mono- and/or dicarboxylic acids, and their uses as alkoxylation catalysts for compounds containing active H atoms or for fatty acid esters.The hydrophobicized double-layer hydroxide compounds correspond to formula (I)(M(II).sub.1-x M(III).sub.x (OH).sub.2)A.sub.a B.sub.b * z H.sub.2 O (I)in whichM(II) is a divalent metal cation selected from the group consisting of magnesium, zinc, calcium, iron, cobalt, copper, cadmium, nickel and manganese;M(III) is a trivalent metal cation selected from the group consisting of aluminum, iron, chromium, manganese, bismuth and cerium;A is an equivalent of a monoanion of an aliphatic C.sub.2-34 monocarboxylic acid or an equivalent of a dianion of an aliphatic C.sub.Type: GrantFiled: April 29, 1993Date of Patent: July 5, 1994Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Wolfgang Breuer, Hans-Christian Raths
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Patent number: 5290773Abstract: A sulfonyl compound of the formula ##STR1## The above illuminated formula (I) undergo bimolecular condensation by the condensing agents and easily form simple metal salts especially metal complexes which act as combatting viruses and inhibiting tissue growth.Type: GrantFiled: March 21, 1990Date of Patent: March 1, 1994Inventor: Takeo Takayanagi
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Patent number: 5283339Abstract: Metallated compounds can be used to extract or precipitate proteins from solution. The compounds can be polymers, such as polyalkylene glycols, which can be mono- or bimetallated or smaller bis-metal chelates, such as ethylenebis(oxyethylenenitrilo)tetraacetic acid. The monometallated polymers are preferred in the extraction process whereas the bimetallated compounds are preferred in the precipitation process. In addition, new PEG compounds which are capable of chelating a variety of metals are described. Both mono- and bi-metallated forms are set forth. The new metallated compounds are very effective in extracting or precipitating proteins from solution.Type: GrantFiled: August 5, 1992Date of Patent: February 1, 1994Assignee: California Institute of TechnologyInventors: Frances H. Arnold, Gerald E. Wuenschell
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Patent number: 5259986Abstract: Complexing reagents are provided which comprise Cu(I) carboxylates or Cu(I) sulfonates and high molecular weight olefins. The invention complexing reagents are useful for separating olefins from mixtures of olefins and paraffins.Type: GrantFiled: December 31, 1991Date of Patent: November 9, 1993Assignee: Phillips Petroleum CompanyInventors: Ted H. Cymbaluk, Gerhard P. Nowack, Marvin M. Johnson
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Patent number: 5248813Abstract: A process for obtaining a substantially pure enantiomer of an aryl-substituted aliphatic carboxylic acid is described. The process utilizes first an enantiomerically enriched mixture the of aryl-substituted aliphatic carboxylic acid obtained from kinetic resolution, diastereomeric crystallization or asymmetric synthesis processes. This enriched mixture is reacted with a base producing a salt that has the following properties:(1) has at least one eutectic point;(2) a composition that is not at the eutectic point; and(3) a eutectic composition that is closer to the racemic composition than is the eutectic composition of said aryl-substituted carboxylic acid.Substantially pure, enantiomeric salt is separated, leaving a mother liquor comprising the solvent and aryl-substituted aliphatic carboxylic acid enriched in the other enantiomer.Type: GrantFiled: October 14, 1992Date of Patent: September 28, 1993Assignee: Ethyl CorporationInventors: Thanikavelu Manimaran, G. Patrick Stahly, R. Carl Herndon, Jr.
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Patent number: 5220044Abstract: Chemical vapor deposition precursors for depositing copper, silver, rhodium and iridium metals on substrates comprise ligand stabilized +1 metal beta-diketonate coordination complexes of said metals. Uses of such precursors in CVD processes are also provided.Type: GrantFiled: March 16, 1992Date of Patent: June 15, 1993Assignee: International Business Machines CorporationInventors: Thomas H. Baum, Carl E. Larson, Scott K. Reynolds
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Patent number: 5210245Abstract: Gold carboxylates and a process for preparing gold salts of organic carboxylic acids are described. The gold carboxylates are represented by the formula ##STR1## in which R represents hydrogen or an organic group of valence y and x, y and z each represent a positive integer such that x=y.multidot.z/3. The process comprises reacting an alkali or alkaline earth metal salt of an organic carboxylic acid with a gold salt in an organic liquid which at least partially dissolves the alkali and/or alkaline earth metal salt, the gold salt, and the desired gold carboxylate product, but is not a solvent for the salt formed between the alkali or alkaline earth metal and the anion of the gold salt.Type: GrantFiled: March 17, 1992Date of Patent: May 11, 1993Assignee: Mooney Chemicals, Inc.Inventor: Thomas E. Nappier
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Patent number: 5194643Abstract: Gold carboxylates and a process for preparing gold salts of organic carboxylic acids are described. The gold carboxylates are represented by the formula ##STR1## in which R represents hydrogen or an organic group of valence y and x, y and z each represent a positive integer such that x=y.z/3. The process comprises reacting an alkali or alkaline earth metal salt of an organic carboxylic acid with a gold salt in an organic liquid which at least partially dissolves the alkali and/or alkaline earth metal salt, the gold salt, and the desired gold carboxylate product, but is not a solvent for the salt formed between the alkali or alkaline earth metal and the anion of the gold salt.Type: GrantFiled: December 10, 1990Date of Patent: March 16, 1993Assignee: Mooney Chemicals, Inc.Inventor: Thomas E. Nappier
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Patent number: 5157095Abstract: Disclosed herein are novel polyorganosiloxanes, both linear and cyclic, havingpendant thereon isocyanate groups derived from specific .alpha.,.alpha.-dimethyl isopropenyl benzyl isocyanates. Also disclosed is a method for production of said polyorganosiloxanes.The disclosed polyorganosiloxanes are useful as crosslinking agents and as intermediates in the production of star polymers, starburst dendrimers, urethanes and ureas.Type: GrantFiled: June 27, 1991Date of Patent: October 20, 1992Assignee: The Research Foundation of State University of New YorkInventor: Johannes Smid
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Patent number: 5104570Abstract: Olefin complexing reagents comprising Cu(I) carboxylate/BF.sub.3 adducts in aromatic solvents and a method of preparation therefor, and use of said reagents in the separation of olefins from paraffins are provided.Type: GrantFiled: December 26, 1989Date of Patent: April 14, 1992Assignee: Phillips Petroleum CompanyInventors: Ted H. Cymbaluk, Donald C. Tabler, Marvin M. Johnson, Gerhard P. Nowack
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Patent number: 5093510Abstract: A process for producing copper formate, which comprises subjecting methyl formate to a liquid-phase hydrolysis reaction at a temperature from 60 to 85.degree. C. in the presence of copper carbonate.Type: GrantFiled: December 5, 1990Date of Patent: March 3, 1992Assignee: Mitsubishi Gas Chemical Co., Ltd.Inventors: Takamasa Kawakami, Ryuji Fujiura, Kazuhiro Ando, Rieko Nakano
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Patent number: 5089642Abstract: A carboalkylated amino alcohol having each of the below shown formulae is novel and optically active. A separating agent comprising the alcohol and a support is effectively useful to separate a variety of racemates for example with chromatography. The alcohol may be chemically or physically combined with the support.Type: GrantFiled: October 26, 1990Date of Patent: February 18, 1992Assignee: Daicel Chemical Industries, Ltd.Inventors: Masaki Hasegawa, Kazuhiko Saigo, Yoichi Yuki, Kouzou Tachibana
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Patent number: 5041573Abstract: A carboalkylated amino alcohol having each of the below shown formulae is novel and optically active. A separating agent comprising the alcohol and a support is effectively useful to separate a variety of racemates for example with chromatography. The alcohol may be chemically or physically combined with the support. ##STR1## [wherein Ph represents a phenyl group, R represents a hydrogen atom, an alkyl group having the carbon number of 1 to 10, or an aryl group having the carbon number of 6 to 10, X represents an --O-- group or a --S-- group, and Z represents a hydrogen atom, an alkyl group having the carbon number of 1 to 10 or a metal element].Type: GrantFiled: October 18, 1989Date of Patent: August 20, 1991Assignee: Daicel Chemical Industries, Ltd.Inventors: Masaki Hasegawa, Kazuhiko Saigo, Yoichi Yuki, Kouzou Tachibana
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Patent number: 5023359Abstract: Organic copper salts having the formula I ##STR1## are used for the treatment of honeybees contaminated by various acarians and namely by the specific mite Varroa jacobsoni.These salts are utilized either as such, or in the form of compositions containing them, optionally in admixture with diluents, nutritive ingredients and other active principles.The compositions according to the invention are useful in the field of breeding and agriculture in restoring the sanitary condition in the hives.Type: GrantFiled: June 13, 1990Date of Patent: June 11, 1991Assignee: Benechim, S.A.Inventors: Michel Bounias, Jean F. Dufour
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Patent number: 5010103Abstract: New compounds having utility for enhancing the activity of antifolates are disclosed of the formula: ##STR1## wherein X is selected from hydrogen ##STR2## and R" ; R' is selected from alkyl, alkenyl, alkynyl, substituted and unsubstituted aryl, and substituted and unsubstituted heterocyclic aryl; R" is selected from ##STR3## and R'S; M is selected from OR and secondary amine; and R is selected from hydrogen, alkyl, acyloxymethyl, substituted and unsubstituted aryl, substituted and unsubstituted heterocyclic aryl, amino cation and metal cation.Type: GrantFiled: January 17, 1990Date of Patent: April 23, 1991Assignee: The Research Foundation of State University of N.Y.Inventor: Thomas I. Kalman
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Patent number: 4927966Abstract: New compounds having utility for enhancing the activity of antifolates are disclosed of the formula: ##STR1## wherein X is selected from hydrogen ##STR2## and R"--; R' is selected from alkyl, alkenyl, alkynyl, substituted and unsubstituted aryl, and substituted and unsubstituted heterocyclic aryl; R" is selected from ##STR3## and R'S; M is selected from OR and secondary amine; and R is selected from hydrogen, alkyl, acyloxymethyl, substituted and unsubstituted aryl, substituted and unsubstituted heterocyclic aryl, amino cation and metal cation.Type: GrantFiled: June 4, 1987Date of Patent: May 22, 1990Assignee: The Research Foundation of State University of New YorkInventor: Thomas I. Kalman
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Patent number: 4870197Abstract: This invention is a process for preparing Group I-B and II-B metal, preferably copper, salts of polyolefinic substituted dicarboxylic acids. The method involves the step of introducing substantially less than a stoichiometric amount of a short chain carboxylic acid (such as acetic or propionic acid), in a stagewise fashion, to a mixture of a source of the corresponding Group I-B or II-B metal (such as an oxide or hydroxide) with the polyolefinic substituted dicarboxylic acid. The product salt is then recovered.Type: GrantFiled: December 12, 1986Date of Patent: September 26, 1989Assignee: Exxon Chemical Patents Inc.Inventors: Antonio Gutierrez, Robert D. Lundberg, Laura J. Colcord-Hernandez
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Patent number: 4828733Abstract: Copper salts of hindered phenol carboxylic acids are used in lubricants and fuels compositions as an antioxidant.Type: GrantFiled: November 12, 1987Date of Patent: May 9, 1989Assignee: Mobil Oil CorporationInventors: Liehpao O. Farng, Horodysky Andrew G.
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Patent number: 4824611Abstract: A process for preparing hydrocarbon-soluble transition metal salts of organic carboxylic acids having improved properties wherein the transition metal is one capable of having a multiplicity of oxidation states is described. The process comprises the steps of (a) providing at least one transition metal compound wherein the transition metal is at one of its higher positive oxidation states, (b) treating said transition metal compound with at least one inorganic reducing agent forming an intermediate containing the transition metal in a lower positive oxidation state, and (c) reacting said intermediate with at least one organic carboxylic acid containing at least 5 carbon atoms to form the transition metal salt of said carboxylic acid. The transition metal salts prepared in accordance with the process of the invention are useful in a variety of applications including resins, inks, paints, lubricants and fuels.Type: GrantFiled: November 21, 1985Date of Patent: April 25, 1989Assignee: Mooney Chemicals, Inc.Inventor: Paul L. Cells
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Patent number: 4808407Abstract: An improved process for preparing water-soluble copper salts of carboxylic acids is described. More particularly, the improved process comprises the steps of(A) providing a mixture comprising(A-1) as a copper source, copper metal, a copper oxide or mixtures thereof,(A-2) at least one organic monocarboxylic acid containing about 10 to about 30 carbon atoms,(A-3) at least one alkanolamine compound characterized by the formulaR.sub.1 (R.sub.2)NHwherein R.sub.1 is a hydroxyalkyl group and R.sub.2 may be hydrogen or a hydroxyalkyl group, and(A-4) water,(B) treating the mixture with oxygen at a temperature up to about the reflux temperature of the mixture until the desired water-soluble copper salt is obtained, and(C) recovering the copper salt as an aqueous solution.The mixture (A) can be modified to include one or more dyes to produce colored solutions of the water-soluble metal salts.Type: GrantFiled: August 14, 1987Date of Patent: February 28, 1989Assignee: Mooney Chemicals, Inc.Inventors: Richard W. Hein, Anthony Alkaitis, deceased
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Patent number: 4770799Abstract: Lubricant compositions containing minor amounts of copper salts of hindered phenol substituted succinic anhydride derivatives possess excellent antioxidant activity.Type: GrantFiled: January 2, 1987Date of Patent: September 13, 1988Assignee: Mobil Oil CorporationInventors: Liehpao O. Farng, Andrew G. Horodysky
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Patent number: 4760170Abstract: A solution process is disclosed for preparing a solubilized metal salt ester by reacting an ester compound, such as 2,2'-thiodiethyl-bis (octadecenyl) succinate ester, with a metal carboxylate, such as calcium acetate, in the process of a mixture of (a) a first co-solvent and/or third co-solvent, such as toluene and/or dodecylbenzene respectively, and (b) a second co-solvent such as methanol, to form the metal salt ester product and an effluent mixture of an acid, such as acetic acid, optional co-solvent first, and second co-solvent, followed by the optional addition of a third co-solvent, and vacuum distilling the resulting mixture to remove the effluent mixture to produce a solution of the product and third co-solvent.Type: GrantFiled: July 1, 1985Date of Patent: July 26, 1988Assignee: Exxon Research & Engineering Co.Inventors: Antonio Gutierrez, Jack Ryer, John G. Hedin, Robert A. Kleist, Stanley J. Brois
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Patent number: 4746749Abstract: A process for producing silver oxalate, which comprises reacting(a) one member selected from the group consisting of oxalic acid and oxalic acid salts as one reactant, with(b) a silver salt as the other reactant, at a pH of not more than 5 in an aqueous medium thereby to precipitate silver oxalate.Type: GrantFiled: July 7, 1987Date of Patent: May 24, 1988Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Naohiro Nojiri, Yukio Sakai, Tomoatsu Iwakura
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Patent number: 4723024Abstract: The invention discloses a method of preparing a silver salt of an organic acid comprising the steps of:(A) preparing a mixture of:(1) at least one organic carboxylic acid,(2) a hydrocarbon solvent, and(3) a mineral acid; and(B) adding a source of silver cation while maintaining the temperature of the resultant mixture between about 60.degree. C. and below the decomposition temperature of the components and product for a period of time sufficient to form the desired silver salt.Type: GrantFiled: June 20, 1986Date of Patent: February 2, 1988Assignee: Mooney Chemicals, Inc.Inventor: Michael F. DePompei
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Patent number: 4680309Abstract: A method of treating inflammation or arthritis with metal complexes that can traverse skin and animal cell membranes intact and effectively deliver and release metal ions in a controlled manner upon demand at the targeted inflammatory or arthritic areas containing endogenous reacting moieties which demand the metal ions. The metal complexes have an aqueous proton induced dissociation property represented by a sigmoidally-shaped curve on a cartesian coordinate plot of the negative log of the metal ion concentration versus the negative log of hydrogen ion concentration. This dissociation property enables the metal complexes to release metal ions in a controlled manner upon demand at the targeted inflammatory or arthritic areas containing endogenous reacting moieties which demand the metal ions. The metal complexes can be effectively administered either topically or subcutaneously.Type: GrantFiled: February 3, 1986Date of Patent: July 14, 1987Assignee: National Research LaboratoriesInventor: Gerald L. Maurer
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Patent number: 4657956Abstract: Additives for rubber compositions, giving vulcanizates having improved retention of optimum physical properties, are compounds having the formula R--S--B--S--R where B is an organic bridging group and R is an electron-withdrawing group, for example CN, CCl.sub.3, a radical containing an activated methylene group linked to the sulphur atom or the enolic tautomer of a keto-activated methylene group. Also useful as stabilizing agents are oligomeric analogues of such compounds.Type: GrantFiled: September 13, 1985Date of Patent: April 14, 1987Assignee: Monsanto Europe, S. A.Inventors: Albert F. L. G. Devaux, Philippe G. Moniotte
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Patent number: 4614827Abstract: A method for isolating a vinyl salt compound in solid form from an aqueous solution thereof by spray drying such an aqueous salt solution.Type: GrantFiled: July 10, 1984Date of Patent: September 30, 1986Assignee: Rohm GmbHInventors: Peter J. Arndt, Franz Wenzel, Manfred Muller, Fritz Schlosser
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Patent number: 4603214Abstract: The present invention relates to the use of the sulphenic acid amides of the general formula (I) ##STR1## in which X represents identical or different halogen atoms,Y.sup.1 and Y.sup.2 are identical or different and represent hydrogen, halogen, alkyl, alkoxy, halogenoalkyl or NO.sub.2 andZ represents halogen, --OH, --NHOH or the group --OR.sup.1,in whichR.sup.1 denotes optionally substituted radicals from the series comprising alkyl, alkenyl, alkinyl, cycloalkyl, aryl, aralkyl and heterocyclyl, orZ represents the group ##STR2## in which R.sup.2 and R.sup.3 are identical or different and denote hydrogen or a heterocyclic radical, orZ represents the group --OMin whichM denotes ammonium or the equivalent of an alkali metal, alkaline earth metal or heavy metal cation,for prolonging the duration of a high activity in agents for combating soil pests.Type: GrantFiled: February 14, 1985Date of Patent: July 29, 1986Assignees: Bayer Aktiengesellschaft, Mobay Chemical CorporationInventors: John Anderson, Bernhard Homeyer, Engelbert Kuhle, Hans Scheinpflug, Walter M. Zeck, Donald E. Simonet
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Patent number: 4599436Abstract: Sodium aurothiomalate used as a therapeutic agent or as a component in a therapeutic agent is shown to be a mixture of substances, one of which is non-toxic to blood platelets, shows specific spectral absorption visibility and does not demonstrate the usual irregular gold containing particles in platelets. As well as being an improvement on the mixture currently employed, the colorless state of sodium aurothiomalate shows promise as an antithrombitic agent.Type: GrantFiled: March 28, 1983Date of Patent: July 8, 1986Assignee: Canadian Patents and Development LimitedInventors: Debra A. Harvey, Walter F. Kean, Colin J. L. Lock
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Patent number: 4595773Abstract: Copper-diamine complexes such as copper(II)-di-t-butylethylenediamine dibromide are prepared by the reaction of a dihalide such as 1,2-dibromoethane with an amine such as t-butylamine and a basic copper(II) compound such as cupric oxide in a nitrile solvent. The diamine can be liberated from the complex by reacting it with a complexing agent such as an ethylenediaminetetraacetic acid salt.Type: GrantFiled: January 24, 1985Date of Patent: June 17, 1986Assignee: General Electric CompanyInventor: Dwain M. White
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Patent number: 4590255Abstract: A process for making metal salt (ionomers) of carboxylic acid-containing mono- and polyether polyol addition products by (1) reacting maleic acid, fumaric acid, itaconic acid, or mixtures thereof with at least one polyhydroxy-containing mono- or polyether compound (e.g. a polyether diol or triol) in the presence of a peroxy-type free radical initiator to form a carboxylic acid group-containing addition product and (2) neutralizing said addition product with a sufficient amount of metal ions selected from the group consisting of metals from Groups 1a, 2a, 8, 1b and 2b of the Periodic Table to convert at least about 10% of the carboxylic acid groups to ionomeric salt groups. These ionomers may be then changed into useful polyurethane elastomers by reaction with organic polyisocyanates.Type: GrantFiled: January 30, 1984Date of Patent: May 20, 1986Assignee: Olin CorporationInventors: James M. O'Connor, Richard L. Frentzel
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Patent number: 4590288Abstract: A polydentate binucleating ligand having at least four donor sites selected from N, O and S, complexed with two atoms of the same metal, forms a coordination complex useful in homogeneous catalysis. Most preferably, all the metal cations are Cu cations and the ligand has a meta-xylyl functionality.Type: GrantFiled: June 29, 1983Date of Patent: May 20, 1986Assignee: Exxon Research and Engineering Co.Inventor: Lawrence P. Klemann