Patents by Inventor Gregory G. Arzoumanidis
Gregory G. Arzoumanidis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200392259Abstract: Aromatic complexes featuring metal-aryl bonds, active in propylene and other alpha olefin polymerizations are described herein. They are prepared by a single step reaction of readily available ligands Arx-L-E with MXy, wherein: Ar=Aryl sigma bonded to L, L=Heteroaromatic or heteroaliphatic ring, with one or more heteroatoms, including fused derivatives, E=Heteroatom on L, available for coordination with the metal. M=Transition metal from groups 3-6, 8, and the lanthanide series of the periodic table of elements. X=Halogenide, y=integer. The ligands react with the TiCl4 present on MgCl2 supported polypropylene catalysts and impart substantial activity and other enhancements. They may be used as ethylene or propylene polymerization and copolymerization with higher alpha-olefins, activated with aluminum alkyls such as triethylaluminum.Type: ApplicationFiled: June 13, 2020Publication date: December 17, 2020Inventor: Gregory G. Arzoumanidis
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Patent number: 5662052Abstract: A method of destructively distilling an organic material in particulate form wherein the particulates are introduced through an inlet into one end of an inner rotating kiln ganged to and coaxial with an outer rotating kiln. The inner and outer kilns define a cylindrical annular space with the inlet being positioned in registry with the axis of rotation of the ganged kilns. During operation, the temperature of the wall of the inner rotary kiln at the inlet is not less than about 500.degree. C. to heat the particulate material to a temperature in the range of from about 200.degree. C. to about 900.degree. C. in a pyrolyzing atmosphere to reduce the particulate material as it moves from the one end toward the other end.Type: GrantFiled: November 13, 1995Date of Patent: September 2, 1997Assignee: United States Department of EnergyInventors: Michael J. McIntosh, Gregory G. Arzoumanidis
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Patent number: 5182245Abstract: A catalyst or catalyst component for the polymerization or copolymerization of alpha-olefins in the slurry phase is formed by a process comprising forming a solution of a magnesium-containing species in a liquid and precipitating solid particles from the solution of the magnesium-containing species by treatment with a transition metal halide in the presence of at least one of a tetrabutoxysilane and a tetrabutoxytitanate.Type: GrantFiled: June 26, 1991Date of Patent: January 26, 1993Assignee: Amoco CorporationInventors: Gregory G. Arzoumanidis, Christine Peaches
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Patent number: 5124297Abstract: A catalyst or catalyst component for the polymerization of copolymerization of alpha-olefins, which is formed by a process comprising forming a solution of a magnesium-containing species in a liquid comprising at least one alcohol.Type: GrantFiled: December 7, 1990Date of Patent: June 23, 1992Assignee: Amoco CorporationInventors: Gregory G. Arzoumanidis, Mark A. Drezdzon, Sam S. Lee
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Patent number: 5081090Abstract: A solid hydrocarbon-insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics comprising the product formed by A) forming a solution of a magnesium-containing species from a magnesium alkyl (or hydrocarbyl) carbonate or a magnesium carboxylate; B) precipitating solid particles from such solution by treatment with a transition metal halide; C) reprecipitating such solid particles from a mixture containing a cyclic ether; D) treating the reprecipitated particles with a transition metal compound and an electron donor; and E) drying the resulting solid particles such that the residual volatile hydrocarbon content is between 0.1 and 0.9 weight percent.Type: GrantFiled: July 23, 1990Date of Patent: January 14, 1992Assignee: Amoco CorporationInventors: Gregory G. Arzoumanidis, Habet M. Khelghatian, Linda Ornellas
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Patent number: 5013702Abstract: A solid hydrocarbon-insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics comprises the product formed by (A) forming a solution of a magnesium-containing species from a magnesium carbonate or a magnesium carboxylate; (B) precipitating solid particles from such magnesium-containing solution by treatment with a transition metal halide and an organosilane; (C) reprecipitating such solid particles from a mixture containing a cyclic ether; and (D) treating the reprecipitated particles with a transition metal compound and an electron donor.Type: GrantFiled: November 9, 1989Date of Patent: May 7, 1991Assignee: Amoco CorporationInventors: Gregory G. Arzoumanidis, Nicholas M. Karayannis, Habet M. Khelghatian, Sam S. Lee, Bryce V. Johnson
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Patent number: 4988656Abstract: A solid hydrocarbon-insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics comprises the product formed by (A) forming a solution of a magnesium-containing species from a magnesium carbonte or a magnesium carboxylate; (B) precipitating solid particles from such magnesium-containing solution by treatment with a transition metal halide and an organosilane; (C) reprecipitating such solid particles from a mixture containing a cyclic ether; and (D) treating the reprecipitated particles with a transition metal compound and an electron donor.Type: GrantFiled: May 12, 1989Date of Patent: January 29, 1991Assignee: Amoco CorporationInventors: Gregory G. Arzoumanidis, Nicholas M. Karayannis, Habet M. Khelghatian, Sam S. Lee, Bryce V. Johnson
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Patent number: 4946816Abstract: In a solid hydrocarbon-insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics comprising the product formed by (A) forming a solution of a magnesium-containing species from a magnesium alkyl (or hydrocarbyl) carbonate or a magnesium carboxylate; (B) precipitating solid particles from such magnesium-containing toluene-based solvent by treatment with a transition metal halide and an organosilane; (C) reprecipitating such solid particles from a mixture containing a cyclic either; and (D) treating the reprecipitated particles with a transition metal compound and an electron donor, the morphology of such component is modified by incorporating a morphology-affecting amount of C.sub.8 -C.sub.10 aromatics within the toluene-based solvent in Step B, Step A, in Step C prior to addition of ether, or combinations thereof.Type: GrantFiled: August 21, 1989Date of Patent: August 7, 1990Assignee: Amoco CorporationInventors: Steven A. Cohen, Gregory G. Arzoumanidis, Nicholas M. Karayannis, Habet M. Khelghatian, Sam S. Lee
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Patent number: 4866022Abstract: A solid hydrocarbon-insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics comprises the product formed by (A) forming a solution of a magnesium-containing species from a magnesium carbonate or a magnesium carboxylate; (B) precipitating solid particles from such magnesium-containing solution by treatment with a transition metal halide and an organosilane; (C) reprecipitating such solid particles from a mixture containing a cyclic ether; and (D) treating the reprecipitated particles with a transition metal compound and an electron donor.Type: GrantFiled: April 25, 1988Date of Patent: September 12, 1989Assignee: Amoco CorporationInventors: Gregory G. Arzoumanidis, Nicholas M. Karayannis, Habet M. Khelghatian, Sam S. Lee, Bryce V. Johnson
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Patent number: 4657883Abstract: An olefin polymerization catalyst component comprises an organoaluminum-reduced titanium trihalide on which a pretreatment amount of olefin polymer has been placed complexed with an alkyl aliphatic carboxylic acid ester containing 7 to 22 carbon atoms having a structure:R--CO.sub.2 R'wherein R' is an alkyl group containing 3 to about 8 carbon atoms and R is an alkyl group containing 3 to 17 carbon atoms, and treated with a Lewis acid, a chlorocarbon or an haloalkylchlorosilane.Type: GrantFiled: October 7, 1985Date of Patent: April 14, 1987Assignee: Amoco CorporationInventors: Gregory G. Arzoumanidis, Sam S. Lee, Thomas E. Wolff, Linda Ornellas
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Patent number: 4612299Abstract: Composition comprising a transition metal component and magnesium carboxylate prepared by reacting a solution of hydrocarbyl magnesium compound with carbon dioxide to precipitate a magnesium carboxylate and reacting magnesium carboxylate with transition metal component.Type: GrantFiled: June 6, 1985Date of Patent: September 16, 1986Assignee: Amoco CorporationInventors: Gregory G. Arzoumanidis, Habet M. Khelghatian, Sam S. Lee
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Patent number: 4579836Abstract: An exhaustively prepolymerized supported olefin polymerization catalyst component comprises solid, hydrocarbon-insoluble, magnesium-containing, titanium-containing catalyst particles which have been contacted with an olefin monomer and an organo-aluminum co-catalyst under exhaustive prepolymerization conditions at an Al/Ti atomic ratio such that the weight of prepolymer formed is less than 10 times the weight of such catalyst particles and the resulting prepolymerized catalyst particles essentially are inactive to further polymerization.Type: GrantFiled: May 22, 1985Date of Patent: April 1, 1986Assignee: Amoco CorporationInventors: Gregory G. Arzoumanidis, Sam S. Lee, Benjamin S. Tovrog
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Patent number: 4540679Abstract: Composition comprising a transition metal component and magnesium hydrocarbyl carbonate. Composition can be prepared by reacting suspension of magnesium alcoholate with carbon dioxide to form a magnesium hydrocarbyl carbonate and reacting magnesium hydrocarbyl carbonate with transition metal component. When the suspending liquid comprises an alcohol, the magnesium hydrocarbyl carbonate dissolves and is subsequently precipitated with an antisolvent comprising metal alkyl or transition metal halide. When the suspending liquid is substantially free of alcohol, the magnesium hydrocarbyl carbonate suspension is reacted with metal alkyl and transition metal compound.Type: GrantFiled: March 23, 1984Date of Patent: September 10, 1985Assignee: Amoco CorporationInventors: Gregory G. Arzoumanidis, Sam S. Lee
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Patent number: 4444967Abstract: A substantially agglomeration-free, finely divided catalyst component which is suitable for use as a cocatalyst with organoaluminum compounds in the polymerization of alpha olefins, which is formed by grinding a titanium trichloride material, an effective amount of an electron pair donor compound to enhance the performance of said catalyst component, and an effective amount for agglomeration control of an agglomeration control agent. The agglomeration control agent is effective in either reducing the attractive forces between the finely divided particles in the catalyst component or by preventing the close approach of these particles which would result in agglomeration.Type: GrantFiled: March 21, 1983Date of Patent: April 24, 1984Assignee: Stauffer Chemical CompanyInventors: Gregory G. Arzoumanidis, Richard F. Gold, Christian G. Michel
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Patent number: 4422956Abstract: A titanium-containing olefin polymerization catalyst component comprises a titanium-containing component formed by reducing titanium tetrachloride with an organoaluminum compound, optionally contacting the resulting reduced solid with a pretreatment amount of alpha-olefin monomer under polymerization conditions, and reacting the resulting product with a Lewis base complexing agent and a haloalkylchlorosilane.Type: GrantFiled: May 14, 1982Date of Patent: December 27, 1983Assignee: Standard Oil Company (Indiana)Inventors: Gregory G. Arzoumanidis, Sam S. Lee
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Patent number: 4400494Abstract: A propylene polymerization catalyst comprises (a) a titanium-containing component formed by reducing titanium tetrachloride with an aluminum alkyl, optionally contacting the resulting reduced solid with a pretreatment amount of alpha-olefin monomer under polymerization conditions, and reacting the resulting product with a Lewis base complexing agent and additional titanium tetrachloride, and (b) an alkyl aluminum halide having a halogen/aluminum atomic ratio between 0.89 and 0.98 and preferably between 0.92 and 0.98.Type: GrantFiled: August 28, 1981Date of Patent: August 23, 1983Assignee: Standard Oil Company (Indiana)Inventors: Gregory G. Arzoumanidis, Benjamin S. Tovrog
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Patent number: 4374816Abstract: A process for producing hypophosphorous acid (H.sub.3 PO.sub.2) by reacting, in the absence of a catalyst and under an acidic condition, phosphine with an aqueous solution of hydrogen peroxide to produce an acid solution. The acid solution is then contacted with an non-transition metal hydroxide, oxide or carbonate, e.g. sodium hydroxide, to produce a product composition containing a hypophosphite, e.g. sodium hypophosphite (NaH.sub.2 PO.sub.2.H.sub.2 O). The process of this invention finds particular utility in processes of the type wherein phosphorus is reacted with an aqueous non-transition metal hydroxide composition, e.g. an aqueous suspension of a sodium hydroxide and calcium hydroxide, to produce a hypophosphite and byproduct phosphine. The process of this invention converts a substantial portion of the byproduct phosphine to hypophosphite.Type: GrantFiled: November 17, 1980Date of Patent: February 22, 1983Assignee: Stauffer Chemical CompanyInventors: Gregory G. Arzoumanidis, Kirk V. Darragh
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Patent number: 4324693Abstract: In a method to produce an alpha-olefin polymerization catalyst comprising reducing titanium tetrachloride with an aluminum alkyl, contacting the resulting reduced solid with a pretreatment amount of alpha-olefin monomer under polymerization conditions and reacting the resulting product with a Lewis base complexing agent and additional titanium tetrachloride, the improvement comprising reacting the Lewis base complexing agent in a molar ratio to the reduced titanium compound of greater than 1.15 to 1.Type: GrantFiled: October 10, 1980Date of Patent: April 13, 1982Assignee: Standard Oil Company (Indiana)Inventors: Gregory G. Arzoumanidis, Sam S. Lee
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Patent number: 4265866Abstract: A process for producing hypophosphorous acid (H.sub.3 PO.sub.2) by reacting, in the absence of a catalyst and under an acidic condition, phosphine with an aqueous solution of hydrogen peroxide to produce an acid solution. The acid solution is then contacted with an non-transition metal hydroxide, oxide or carbonate, e.g. sodium hydroxide, to produce a product composition containing a hypophosphite, e.g. sodium hypophosphite (NaH.sub.2 PO.sub.2.H.sub.2 O). The process of this invention finds particular utility in processes of the type wherein phosphorus is reacted with an aqueous non-transition metal hydroxide composition, e.g. an aqueous suspension of a sodium hydroxide and calcium hydroxide, to produce a hypophosphite and byproduct phosphine. The process of this invention converts a substantial portion of the byproduct phosphine to hypophosphite.Type: GrantFiled: May 3, 1979Date of Patent: May 5, 1981Assignee: Stauffer Chemical CompanyInventors: Gregory G. Arzoumanidis, Kirk V. Darragh
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Patent number: 4142991Abstract: A substantially agglomeration-free, finely divided catalyst component which is suitable for use as a cocatalyst with organoaluminum compounds in the polymerization of alpha olefins, which is formed by grinding a titanium trichloride material, an effective amount of an electron pair donor compound to enhance the performance of said catalyst component, and an effective amount for agglomeration control of an agglomeration control agent. The agglomeration control agent is effective in either reducing the attractive forces between the finely divided particles in the catalyst component or by preventing the close approach of these particles which would result in agglomeration.Type: GrantFiled: November 8, 1976Date of Patent: March 6, 1979Assignee: Stauffer Chemical CompanyInventors: Gregory G. Arzoumanidis, Richard F. Gold, Christian G. Michel