Patents by Inventor Alexander REZNICHENKO
Alexander REZNICHENKO 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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Patent number: 11827733Abstract: The present invention relates to a process for producing solid Ziegler-Natta catalyst component in the form of solid particles having a median particle size (D50vol) of 5 to 500 ?m the process comprising steps I. providing a solution of a mixture of Group 2 metal compounds of i) a solution of a Group 2 metal dihalide and ii) at least one Group 2 metal alkoxide of the Periodic Table (IUPAC, Nomenclature of Inorganic Chemistry, 2005) II. contacting the solution of the mixture of Group 2 metal compounds of step I with a compound in a liquid form of a transition metal of Group 4 to 10, or of a lanthanide or actinide, preferably a transition metal of Group 4 to 6 of Periodic Table (IUPAC, Nomenclature of Inorganic Chemistry, 2005), and III.Type: GrantFiled: December 19, 2019Date of Patent: November 28, 2023Assignee: BOREALIS AGInventors: Timo Leinonen, Peter Denifl, Alexander Reznichenko, Frank Schröder
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Patent number: 11753486Abstract: The present invention relates to a process for producing of solid particulate olefin polymerisation catalyst or catalyst carrier comprising forming a solution of the catalyst or a catalyst carrier in a solvent, subjecting the solution into an atomization by spraying the solution via a capillary vibrating spray nozzle with a capillary orifice having a diameter of 5 to 100 ?m generating a laminar jet of liquid, which disintegrates into liquid droplets entering into the spray-dryer, transforming the droplets with aid of a gas to solid particulate catalyst or carrier in the spray-dryer and recovering the solid particulate olefin polymerisation catalyst or carrier having particle size distribution defined by a volumetric SPAN of 0.7 or less. The invention further relates to the catalyst produced by the methods, and use thereof in olefin polymerisation process.Type: GrantFiled: December 20, 2018Date of Patent: September 12, 2023Assignee: BOREALIS AGInventors: Alexander Reznichenko, Jari-Jussi Ruskeeniemi, Joseph Thorman, Xiao Dong Chen, Victor Sumerin
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Publication number: 20230279159Abstract: The present invention relates to a process for producing of solid particulate olefin polymerisation catalyst or catalyst carrier comprising forming a solution of the catalyst or a catalyst carrier in a solvent, subjecting the solution into an atomization by spraying the solution via a capillary vibrating spray nozzle with a capillary orifice having a diameter of 5 to 100 ?m generating a laminar jet of liquid, which disintegrates into liquid droplets entering into the spray-dryer, transforming the droplets with aid of a gas to solid particulate catalyst or carrier in the spray-dryer and recovering the solid particulate olefin polymerisation catalyst or carrier having particle size distribution defined by a volumetric SPAN of 0.7 or less. The invention further relates to the catalyst produced by the methods, and use thereof in olefin polymerisation process.Type: ApplicationFiled: May 11, 2023Publication date: September 7, 2023Inventors: Alexander REZNICHENKO, Jari-Jussi RUSKEENIEMI, Joseph THORMAN, Xiao Dong CHEN, Victor SUMERIN
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Publication number: 20230265270Abstract: The present invention relates to a new BOPP film for use in a capacitor film, a new polypropylene homopolymer and a process for manufacturing the polypropylene homopolymer.Type: ApplicationFiled: May 21, 2021Publication date: August 24, 2023Applicant: Borealis AGInventors: Alexander REZNICHENKO, Hans KERKHOFS, Kristof WEHENKEL, Werner VERWIMP, Dietrich GLOGER
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Publication number: 20220356274Abstract: A metallocene complex of formula (I): each X is a sigma-ligand; in the group R2Si— at least one R is methyl or ethyl, and the other R is selected from methyl, ethyl, n-propyl, isopropyl, n-butyl or isobutyl, pentyl, hexyl, cyclohexyl and phenyl; each R1 independently is the same or can be different and are a CH2—R7 group, with R7 being H or linear or branched C1-6-alkyl group, C3-8 cycloalkyl group, or C6-10 aryl group; each R2 is independently a —CH?, —CY?, —CH2—, —CHY— or —CY2— group, wherein Y is a C1-6 hydrocarbyl group and where n is 2-6; each R3 and R4 are independently the same or can be different and are hydrogen, a linear or branched C1-6-alkyl group, a C7-20 arylalkyl, C7-20 alkylaryl group, C6-20 aryl group, or an —OY group, wherein Y is a is a C1-6 hydrocarbyl group; R5 is a linear or branched C1-6-alkyl group, C7-20 arylalkyl, C7-20 alkylaryl group or C6-20-aryl group; and R6 is a C(R8)3 group, with R8 being a linear or branched C1-6 alkyl group; (A) wherein at least one R3 per phenyl group and aType: ApplicationFiled: September 25, 2020Publication date: November 10, 2022Inventors: Luigi Maria Cristoforo RESCONI, Simon SCHWARZENBERGER, Ville VIRKKUNEN, Alexander REZNICHENKO, Vyatcheslav V. IZMER, Dmitry S. KONONOVICH, Alexander Z. VOSKOBOYNIKOV
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Publication number: 20220227800Abstract: Improved preparation process for silica supported catalyst systems, which comprise a specific class of metallocene complexes in combination with a boron containing cocatalyst and an aluminoxane cocatalyst and use of the new, improved catalyst system.Type: ApplicationFiled: May 20, 2020Publication date: July 21, 2022Inventors: Alexander REZNICHENKO, Ville VIRKKUNEN, Luigi RESCONI
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Publication number: 20220220143Abstract: Improved preparation process for supported catalyst systems, which comprise a specific class of metallocene complexes in combination with a boron containing cocatalyst and an aluminoxane cocatalyst and use of the new, improved catalyst system.Type: ApplicationFiled: May 20, 2020Publication date: July 14, 2022Inventors: Luigi Maria Cristoforo RESCONI, Alexander REZNICHENKO, Ville VIRKKUNEN
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Publication number: 20220220231Abstract: New, improved silica supported catalyst system, which comprises a specific class of metallocene complexes in combination with a boron containing cocatalyst and an aluminoxane cocatalyst, its use for producing propylene homopolymers, propylene copolymers, especially with ethylene, as well as heterophasic propylene copolymers, preferably in a multistep process including a gas phase polymerization step.Type: ApplicationFiled: May 20, 2020Publication date: July 14, 2022Inventors: Luigi Maria Cristoforo RESCONI, Wilfried TOELTSCH, Ville VIRKKUNEN, Kalle KALLIO, Soile LUSTIG, Noureddine AJELLAL, Marja MUSTONEN, Alexander REZNICHENKO
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Patent number: 11384170Abstract: A process for the preparation of a solid olefin polymerization catalyst or a solid olefin polymerization catalyst component comprising the steps of: (a) forming a liquid/liquid emulsion of (i) a first organic liquid comprising at least one olefin polymerization catalyst component and (ii) an optionally halogenated hydrocarbon liquid immiscible therewith; where the first organic liquid forms the dispersed phase and the optionally halogenated hydrocarbon liquid forms the continuous phase of the liquid/liquid emulsion and wherein the dispersed phase forms droplets in the continuous phase; and (b) transforming the droplets of the dispersed phase to solid particulate particles comprising said at least one olefin polymerization catalyst component, wherein the liquid/liquid emulsion is stabilized with a solid particulate stabilizer.Type: GrantFiled: December 19, 2018Date of Patent: July 12, 2022Assignee: Borealis AGInventors: Alexander Reznichenko, Noureddine Ajellal, Joseph Thorman, Bernard Binks
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Publication number: 20210340288Abstract: The present invention relates to a process for producing solid Ziegler-Natta catalyst component in the form of solid particles having a median particle size (D50vol) of 5 to 500 ?m the process comprising steps I. providing a solution of a mixture of Group 2 metal compounds of i) a solution of a Group 2 metal dihalide and ii) at least one Group 2 metal alkoxide of the Periodic Table (IUPAC, Nomenclature of Inorganic Chemistry, 2005) II. contacting the solution of the mixture of Group 2 metal compounds of step I with a compound in a liquid form of a transition metal of Group 4 to 10, or of a lanthanide or actinide, preferably a transition metal of Group 4 to 6 of Periodic Table (IUPAC, Nomenclature of Inorganic Chemistry, 2005), and III.Type: ApplicationFiled: December 19, 2019Publication date: November 4, 2021Inventors: Timo Leinonen, Peter Denifl, Alexander Reznichenko, Frrank Schröder
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Publication number: 20210179744Abstract: A process for the preparation of a solid olefin polymerisation catalyst or a solid olefin polymerisation catalyst component comprising the steps of: (a) forming a liquid/liquid emulsion of (i) a first organic liquid comprising at least one olefin polymerization catalyst component and (ii) an optionally halogenated hydrocarbon liquid immiscible therewith; where the first organic liquid forms the dispersed phase and the optionally halogenated hydrocarbon liquid forms the continuous phase of the liquid/liquid emulsion and wherein the dispersed phase forms droplets in the continuous phase; and (b)transforming the droplets of the dispersed phase to solid particulate particles comprising said at least one olefin polymerization catalyst component, wherein the liquid/liquid emulsion is stabilized with a solid particulate stabilizerType: ApplicationFiled: December 19, 2018Publication date: June 17, 2021Inventors: Alexander REZNICHENKO, Noureddine AJELLAL, Joseph THORMAN, Bernard BINKS
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Publication number: 20210079128Abstract: The present invention relates to a process for producing of solid particulate olefin polymerisation catalyst or catalyst carrier comprising forming a solution of the catalyst or a catalyst carrier in a solvent, subjecting the solution into an atomization by spraying the solution via a capillary vibrating spray nozzle with a capillary orifice having a diameter of 5 to 100 ?m generating a laminar jet of liquid, which disintegrates into liquid droplets entering into the spray-dryer, transforming the droplets with aid of a gas to solid particulate catalyst or carrier in the spray-dryer and recovering the solid particulate olefin polymerisation catalyst or carrier having particle size distribution defined by a volumetric SPAN of 0.7 or less. The invention further relates to the catalyst produced by the methods, and use thereof in olefin polymerisation process.Type: ApplicationFiled: December 20, 2018Publication date: March 18, 2021Inventors: Alexander REZNICHENKO, Jari-Jussi RUSKEENIEMI, Joseph THORMAN, Xiao Dong CHEN, Victor SUMERIN
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Patent number: 9670293Abstract: Process for the preparation of a solid catalyst system comprising the steps of preparing a liquid clathrate comprising a mixing of an aluminoxane, an aromatic compound and an organo-silicon compound, wherein the mol-ratio between the organo-silicon compound and aluminum of the aluminoxane is below 0.1, mixing said liquid clathrate with an organometallic compound obtaining a liquid mixture, and precipitating the solid catalyst system out of said liquid mixture by adding a saturated aliphatic compound to said mixture liquid.Type: GrantFiled: October 22, 2014Date of Patent: June 6, 2017Assignee: BOREALIS AGInventors: Alexander Reznichenko, Noureddine Ajellal, Pascal Castro, Irfan Saeed
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Publication number: 20160200838Abstract: Process for the preparation of a solid catalyst system comprising the steps of preparing a liquid clathrate comprising a mixing of an aluminoxane, an aromatic compound and an organo-silicon compound, wherein the mol-ratio between the organo-silicon compound and aluminum of the aluminoxane is below 0.1, mixing said liquid clathrate with an organometallic compound obtaining a liquid mixture, and precipitating the solid catalyst system out of said liquid mixture by adding a saturated aliphatic compound to said mixture liquid.Type: ApplicationFiled: October 22, 2014Publication date: July 14, 2016Applicant: BOREALIS AGInventors: Alexander REZNICHENKO, Noureddine AJELLAL, Pascal CASTRO, Irfan SAEED