Patents Assigned to Tosoh Finechem Corporation
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Patent number: 11840522Abstract: A method of stabilizing perfluoro(2-methylene-4-methyl-1,3-dioxolane) (hereinafter simply referred to as a “stabilization method”), including incorporating at least one selected from the group consisting of a hydroxy group-containing fluoroaromatic compound represented by General Formula (1) below and a hydroxy group-containing fluoroaromatic compound represented by General Formula (2) below into a composition containing perfluoro(2-methylene-4-methyl-1,3-dioxolane): (in the formula, R1 to R6 each independently represent one selected from the group consisting of a fluorine atom, a perfluoroalkyl group and a hydroxy group, and at least one of R1 to R6 is a hydroxy group); (in the formula, R7 to R14 each independently represent one selected from the group consisting of a fluorine atom, a perfluoroalkyl group and a hydroxy group, and at least one of R7 to R14 is a hydroxy group).Type: GrantFiled: December 20, 2019Date of Patent: December 12, 2023Assignees: TOSOH CORPORATION, TOSOH FINECHEM CORPORATIONInventors: Hideki Miyauchi, Shota Nishida, Daisuke Inoue, Yusuke Shigeta, Norihisa Kondo, Makoto Watanabe, Shohei Yumino, Tomoya Shimono
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Patent number: 11820871Abstract: A method for producing aluminum oxide is provided. The method uses an aluminum-oxide-forming agent containing a partially hydrolyzed aluminum alkyl compound containing an aluminum trialkyl or a mixture thereof, and a solvent. It is thus possible to produce an aluminum oxide thin film or aluminum oxide particles on or in a substrate that is not resistant to polar solvents. A method of producing a polyolefin-based polymer nanocomposite containing zinc oxide particles or aluminum oxide particles using a solution containing a partially hydrolyzed zinc alkyl or a solution containing a partially hydrolyzed aluminum alkyl is also provided. The polyolefin-based polymer nanocomposite contains a polyolefin substrate and zinc oxide particles or aluminum oxide particles, and does not contain a dispersant. The zinc oxide particles or aluminum oxide particles have an average particle size of less than 100 nm.Type: GrantFiled: January 25, 2022Date of Patent: November 21, 2023Assignee: TOSOH FINECHEM CORPORATIONInventors: Koichiro Inaba, Kouji Toyota, Kenichi Haga, Toshio Naka, Toshiaki Taniike
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Patent number: 11795277Abstract: A method for producing aluminum oxide is provided. The method uses an aluminum-oxide-forming agent containing a partially hydrolyzed aluminum alkyl compound containing an aluminum trialkyl or a mixture thereof, and a solvent. It is thus possible to produce an aluminum oxide thin film or aluminum oxide particles on or in a substrate that is not resistant to polar solvents. A method of producing a polyolefin-based polymer nanocomposite containing zinc oxide particles or aluminum oxide particles using a solution containing a partially hydrolyzed zinc alkyl or a solution containing a partially hydrolyzed aluminum alkyl is also provided. The polyolefin-based polymer nanocomposite contains a polyolefin substrate and zinc oxide particles or aluminum oxide particles, and does not contain a dispersant. The zinc oxide particles or aluminum oxide particles have an average particle size of less than 100 nm.Type: GrantFiled: January 25, 2022Date of Patent: October 24, 2023Assignee: TOSOH FINECHEM CORPORATIONInventors: Koichiro Inaba, Kouji Toyota, Kenichi Haga, Toshio Naka, Toshiaki Taniike
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Patent number: 11767308Abstract: Provided is a method of stabilizing a perfluorodioxolane compound, which includes having a quinone compound present in a composition containing a perfluorodioxolane compound, wherein the perfluorodioxolane compound is one or more perfluorodioxolane compounds selected from the group consisting of a perfluorodioxolane compound denoted by general formula (1) and a perfluorodioxolane compound denoted by general formula (2).Type: GrantFiled: December 25, 2020Date of Patent: September 26, 2023Assignees: TOSOH CORPORATION, TOSOH FINECHEM CORPORATIONInventors: Daisuke Inoue, Yusuke Sesoko, Hiroshi Matsuo, Hiroki Takamiya, Hideyuki Mimura, Tomoya Shimono, Tomonari Nagai
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Publication number: 20230068345Abstract: Provided is a method of stabilizing a perfluorodioxolane compound, which includes having a quinone compound present in a composition containing a perfluorodioxolane compound, wherein the perfluorodioxolane compound is one or more perfluorodioxolane compounds selected from the group consisting of a perfluorodioxolane compound denoted by general formula (1) and a perfluorodioxolane compound denoted by general formula (2).Type: ApplicationFiled: December 25, 2020Publication date: March 2, 2023Applicants: TOSOH CORPORATION, TOSOH FINECHEM CORPORATIONInventors: Daisuke INOUE, Yusuke SESOKO, Hiroshi MATSUO, Hiroki TAKAMIYA, Hideyuki MIMURA, Tomoya SHIMONO, Tomonari NAGAI
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Patent number: 11591349Abstract: A method for producing a particulate aluminum alloy involves pulverizing an aluminum alloy in a hydrocarbon solvent in the presence of an organic aluminum compound. Methods for producing trialkylaluminum involve reacting an aluminum-magnesium alloy with an alkyl halide in the presence of a nitrogen-containing organic compound to obtain a trialkylaluminum-containing reaction product, and reacting an aluminum-magnesium alloy and an alkyl halide. A highly active, low viscosity composition containing the particulate aluminum alloy and a method for producing the particulate aluminum alloy-containing composition are also described.Type: GrantFiled: September 1, 2020Date of Patent: February 28, 2023Assignee: TOSOH FINECHEM CORPORATIONInventors: Hiroshi Matsuo, Yujin Takemoto, Kotaro Sakoda, Toshio Naka
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Patent number: 11555024Abstract: Provided is a method of manufacturing a trifluoropyruvyl fluoride dimer, including a reaction step of reacting hexafluoropropylene oxide and aldehyde.Type: GrantFiled: September 3, 2019Date of Patent: January 17, 2023Assignees: TOSOH CORPORATION, TOSOH FINECHEM CORPORATIONInventors: Hideki Miyauchi, Hiroshi Matsuo, Takumi Kagawa, Norihisa Kondo, Hideyuki Mimura
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Publication number: 20230002342Abstract: Provided is a method of producing perfluoro(2,4-dimethyl-2-fluoroformyl-1,3-dioxolane, the method having a dimer reaction step of reacting a trifluoropyruvic acid fluoride dimer with hexafluoropropylene oxide in an organic solvent in the presence of one or more fluorides selected from the group consisting of potassium fluoride and sodium fluoride to obtain perfluoro(dimethyl-2-oxo-1,4-dioxane).Type: ApplicationFiled: October 2, 2020Publication date: January 5, 2023Applicants: SAGAMI CHEMICAL RESEARCH INSTITUTE, TOSOH CORPORATION, TOSOH FINECHEM CORPORATIONInventors: Munenori INOUE, Tatsuya UEJI, Hiroshi MATSUO
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Patent number: 11482709Abstract: An aluminum oxide article containing at least aluminum atoms and oxygen atoms is described. When observed under a transmission electron microscope, a cross section of the aluminum oxide article contains crystallized parts, in which a crystal lattice image is recognizable, and a non-crystallized part, in which no crystal lattice image is recognizable, and has an island-and-sea structure consisting of isolated parts containing the crystallized parts and the continuous non-crystallized part. The isolated parts correspond to island parts in the island-and-sea structure, the continuous non-crystallized part corresponds to a sea part, and a plurality of the island parts are uniformly distributed in the sea part. An aluminum oxide for improving the battery performance of a lithium ion secondary battery, the scratch resistance and hardness of a cured film, and the gas barrier properties of a gas barrier film is provided.Type: GrantFiled: March 14, 2018Date of Patent: October 25, 2022Assignee: TOSOH FINECHEM CORPORATIONInventors: Yujin Takemoto, Masahiro Aoki, Kouji Toyota, Koichiro Inaba, Kentaro Sakai
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Patent number: 11459410Abstract: The present invention provides a high-purity arylsulfonic acid amine salt vinyl monomer which is an extremely industrially useful arylsulfonic acid monomer with excellent storage stability and amphiphilic solubility in both water and organic solvents, a simple and practical method for producing the same, a polyarylsulfonic acid amine salt which is a polymer thereof, and a method for producing the same. In the arylsulfonic acid amine salt vinyl monomer, a tertiary amine having 2 or 3 different substituents that each have 1 to 7 carbon atoms and also containing at least one or more of tertiary carbon or quaternary carbon or cyclic skeleton in the structure is applied to an amine moiety thereof, and in addition, a polyarylsulfonic acid amine salt having high purity in terms of sulfonation rate and polymerization conversion rate and a polymer thereof are used.Type: GrantFiled: August 6, 2018Date of Patent: October 4, 2022Assignee: TOSOH FINECHEM CORPORATIONInventors: Yusuke Shigeta, Shinji Ozoe, Akihiro Fuji
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Patent number: 11453786Abstract: A solution containing a diketone compound having an alkoxy group, a dialkylzinc represented by general formula (1) and/or a partial hydrolysate of the dialkylzinc, and a solvent is described. A method for producing a zinc oxide thin film involves applying the dialkylzinc solution or a solution containing a dialkylzinc partial hydrolysate to a base material. ZnR102??(1) In the formula, R10 is a C1-6 linear or branched alkyl group. The solution containing dialkylzinc or dialkylzinc partial hydrolysate can be handled in air, making it possible to form a transparent thin film having high adhesiveness to a substrate even with film formation in air.Type: GrantFiled: January 30, 2018Date of Patent: September 27, 2022Assignee: TOSOH FINECHEM CORPORATIONInventors: Kouji Toyota, Kenichi Haga
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Patent number: 11352457Abstract: To provide a novel fluorine-containing compound that does not include any long chain perfluoroalkyl unit having 8 or more carbon atoms, which is problematic in terms of the environment, and that is excellent in water repellency/oil repellency, and a surface modifier using the compound. [Solution] There are used a fluorine-containing compound represented by the following general formula (1), the following general formula (2) or the following general formula (5): Rf1—(CR1?CR2—X—Rf2)n—Y—Z (1), Rf1—(X—CR1?CR2—Rf2)n—Y—Z (2) or Rf3—(CF?CR3—CR4?CF—Rf4)n—Y—Z (5); and a surface modifier using the compound.Type: GrantFiled: July 2, 2018Date of Patent: June 7, 2022Assignee: TOSOH FINECHEM CORPORATIONInventors: Shinichiro Nakamura, Norihisa Kondo, Takayuki Yamasaki, Tomohiro Shirai
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Publication number: 20220073661Abstract: Provided is a novel polystyrene-based polyampholyte having upper critical solution temperature (UCST)-type thermoresponsiveness and a method for producing the same. When monomers having halogenated vinylbenzyl trialkyl ammonium and p-styrenesulfonate as main components are radically polymerized in an aqueous solvent, a polyampholyte having an upper critical solution temperature is produced by optimizing the mole ratio between cationic groups and anionic groups and the amount of a radical initiator and a chain transfer agent to be added to thereby control the copolymer composition and the molecular weight.Type: ApplicationFiled: September 20, 2021Publication date: March 10, 2022Applicant: TOSOH FINECHEM CorporationInventors: Shinichi YUSA, Kanta Sharker KOMOL, Yuki OHARA, Yusuke SHIGETA, Shinji OZOE
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Patent number: 11267940Abstract: A method for producing aluminum oxide is provided. The method uses an aluminum-oxide-forming agent containing a partially hydrolyzed aluminum alkyl compound containing an aluminum trialkyl or a mixture thereof, and a solvent. It is thus possible to produce an aluminum oxide thin film or aluminum oxide particles on or in a substrate that is not resistant to polar solvents. A method of producing a polyolefin-based polymer nanocomposite containing zinc oxide particles or aluminum oxide particles using a solution containing a partially hydrolyzed zinc alkyl or a solution containing a partially hydrolyzed aluminum alkyl is also provided. The polyolefin-based polymer nanocomposite contains a polyolefin substrate and zinc oxide particles or aluminum oxide particles, and does not contain a dispersant. The zinc oxide particles or aluminum oxide particles have an average particle size of less than 100 nm.Type: GrantFiled: May 12, 2017Date of Patent: March 8, 2022Assignee: TOSOH FINECHEM CORPORATIONInventors: Koichiro Inaba, Kouji Toyota, Kenichi Haga, Toshio Naka, Toshiaki Taniike
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Publication number: 20220056006Abstract: A method of stabilizing perfluoro(2-methylene-4-methyl-1,3-dioxolane) (hereinafter simply referred to as a “stabilization method”), including incorporating at least one selected from the group consisting of a hydroxy group-containing fluoroaromatic compound represented by General Formula (1) below and a hydroxy group-containing fluoroaromatic compound represented by General Formula (2) below into a composition containing perfluoro(2-methylene-4-methyl-1,3-dioxolane): (in the formula, R1 to R6 each independently represent one selected from the group consisting of a fluorine atom, a perfluoroalkyl group and a hydroxy group, and at least one of R1 to R6 is a hydroxy group); (in the formula, R7 to R14 each independently represent one selected from the group consisting of a fluorine atom, a perfluoroalkyl group and a hydroxy group, and at least one of R7 to R14 is a hydroxy group).Type: ApplicationFiled: December 20, 2019Publication date: February 24, 2022Applicants: TOSOH CORPORATION, TOSOH FINECHEM CORPORATIONInventors: Hideki MIYAUCHI, Shota NISHIDA, Daisuke INOUE, Yusuke SHIGETA, Norihisa KONDO, Makoto WATANABE, Shohei YUMINO, Tomoya SHIMONO
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Publication number: 20220002262Abstract: Provided is a method of producing perfluoro(2-methylene-4-methyl-1,3-dioxolane), the method including at least following processes (1) to (3): (1) reacting at least one of perfluoro(2,4-dimethyl-2-fluoroformyl-1,3-dioxolane) and a hydrolysis product thereof with a basic aqueous solution containing one or more cations selected from the group consisting of alkali metal ions and alkaline earth metal ions and then separating a liquid containing produced perfluoro(2,4-dimethyl-1,3-dioxolane-2-yl)carboxylic acid alkali metal salts or perfluoro(2,4-dimethyl-1,3-dioxolane-2-yl)carboxylic acid alkaline earth metal salts by a liquid separation operation; (2) performing one or more water content reduction treatments selected from the group consisting of water evaporation and water adsorption on the liquid containing the obtained perfluoro(2,4-dimethyl-1,3-dioxolane-2-yl)carboxylic acid alkali metal salts or perfluoro(2,4-dimethyl-1,3-dioxolane-2-yl)carboxylic acid alkaline earth metal salts to obtain perfluoro(2,4-diType: ApplicationFiled: November 6, 2019Publication date: January 6, 2022Applicants: TOSOH CORPORATION, TOSOH FINECHEM CORPORATIONInventors: Hideki MIYAUCHI, Hiroshi MATSUO, Yuichi MIYASHITA, Akihiro FUJI, Yusuke SHIGETA, Shota NISHIDA, Norihisa KONDO, Makoto WATANABE
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Publication number: 20210214332Abstract: Provided is a method of manufacturing a trifluoropyruvyl fluoride dimer, including a reaction step of reacting hexafluoropropylene oxide and aldehyde.Type: ApplicationFiled: September 3, 2019Publication date: July 15, 2021Applicants: TOSOH CORPORATION, TOSOH FINECHEM CORPORATIONInventors: Hideki MIYAUCHI, Hiroshi MATSUO, Takumi KAGAWA, Norihisa KONDO, Hideyuki MIMURA
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Patent number: 10870666Abstract: A method for producing a particulate aluminum alloy involves pulverizing an aluminum alloy in a hydrocarbon solvent in the presence of an organic aluminum compound. Methods for producing trialkylaluminum involve reacting an aluminum-magnesium alloy with an alkyl halide in the presence of a nitrogen-containing organic compound to obtain a trialkylaluminum-containing reaction product, and reacting an aluminum-magnesium alloy and an alkyl halide. A highly active, low viscosity composition containing the particulate aluminum alloy and a method for producing the particulate aluminum alloy-containing composition are also described.Type: GrantFiled: October 4, 2017Date of Patent: December 22, 2020Assignee: TOSOH FINECHEM CORPORATIONInventors: Hiroshi Matsuo, Yujin Takemoto, Kotaro Sakoda, Toshio Naka
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Patent number: 10793652Abstract: A method for producing a high-activity solid PMAO composition is provided, involving: (a) heating an aromatic hydrocarbon solution of TMAL and PMAO containing units having formula (I), and precipitating a solid PMAO composition containing PMAO and TMAL; (b) adding an aromatic hydrocarbon solution of TMAL and PMAO containing units represented by formula (I) to a solution containing the solid PMAO composition; and (c) heating the resulting solution, thereby precipitating a solid PMAO composition. In steps (b) and (c), at least 70% of the PMAO and TMAL in terms of aluminum precipitates. The median diameter d2 of the solid PMAO composition produced in (c) is greater than the median diameter d1 of the solid PMAO composition produced in (a). -[(Me)AlO]n—??(I) In formula (I), n represents an integer of 10-50. An olefin polymerization catalyst using the solid PMAO composition and a method for producing an olefin polymer using this catalyst are also described.Type: GrantFiled: April 4, 2017Date of Patent: October 6, 2020Assignee: Tosoh Finechem CorporationInventors: Eiichi Kaji, Takeo Yamane
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Patent number: 10730969Abstract: Provided is a solid polymethylaluminoxane composition which has higher activity when being used as a co-catalyst in olefin polymerization. The solid polymethylaluminoxane composition contains polymethylaluminoxane, trimethylaluminum, and Al2O3, wherein: (i) the aluminum content is in a range of 36-43 mass %; and (ii) the Al2O3 content is in a range of 0.001-10 mol % represented in terms of aluminum.Type: GrantFiled: November 22, 2016Date of Patent: August 4, 2020Assignee: Tosoh Finechem CorporationInventors: Kentaro Sakai, Yujin Takemoto, Eiichi Kaji