Patents Assigned to Tosoh Finechem Corporation
  • Publication number: 20230068345
    Abstract: 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: Application
    Filed: December 25, 2020
    Publication date: March 2, 2023
    Applicants: TOSOH CORPORATION, TOSOH FINECHEM CORPORATION
    Inventors: Daisuke INOUE, Yusuke SESOKO, Hiroshi MATSUO, Hiroki TAKAMIYA, Hideyuki MIMURA, Tomoya SHIMONO, Tomonari NAGAI
  • Patent number: 11591349
    Abstract: 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: Grant
    Filed: September 1, 2020
    Date of Patent: February 28, 2023
    Assignee: TOSOH FINECHEM CORPORATION
    Inventors: Hiroshi Matsuo, Yujin Takemoto, Kotaro Sakoda, Toshio Naka
  • Patent number: 11555024
    Abstract: Provided is a method of manufacturing a trifluoropyruvyl fluoride dimer, including a reaction step of reacting hexafluoropropylene oxide and aldehyde.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: January 17, 2023
    Assignees: TOSOH CORPORATION, TOSOH FINECHEM CORPORATION
    Inventors: Hideki Miyauchi, Hiroshi Matsuo, Takumi Kagawa, Norihisa Kondo, Hideyuki Mimura
  • Publication number: 20230002342
    Abstract: 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: Application
    Filed: October 2, 2020
    Publication date: January 5, 2023
    Applicants: SAGAMI CHEMICAL RESEARCH INSTITUTE, TOSOH CORPORATION, TOSOH FINECHEM CORPORATION
    Inventors: Munenori INOUE, Tatsuya UEJI, Hiroshi MATSUO
  • Patent number: 11482709
    Abstract: 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: Grant
    Filed: March 14, 2018
    Date of Patent: October 25, 2022
    Assignee: TOSOH FINECHEM CORPORATION
    Inventors: Yujin Takemoto, Masahiro Aoki, Kouji Toyota, Koichiro Inaba, Kentaro Sakai
  • Patent number: 11459410
    Abstract: 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: Grant
    Filed: August 6, 2018
    Date of Patent: October 4, 2022
    Assignee: TOSOH FINECHEM CORPORATION
    Inventors: Yusuke Shigeta, Shinji Ozoe, Akihiro Fuji
  • Patent number: 11453786
    Abstract: 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: Grant
    Filed: January 30, 2018
    Date of Patent: September 27, 2022
    Assignee: TOSOH FINECHEM CORPORATION
    Inventors: Kouji Toyota, Kenichi Haga
  • Patent number: 11352457
    Abstract: 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: Grant
    Filed: July 2, 2018
    Date of Patent: June 7, 2022
    Assignee: TOSOH FINECHEM CORPORATION
    Inventors: Shinichiro Nakamura, Norihisa Kondo, Takayuki Yamasaki, Tomohiro Shirai
  • Publication number: 20220073661
    Abstract: 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: Application
    Filed: September 20, 2021
    Publication date: March 10, 2022
    Applicant: TOSOH FINECHEM Corporation
    Inventors: Shinichi YUSA, Kanta Sharker KOMOL, Yuki OHARA, Yusuke SHIGETA, Shinji OZOE
  • Patent number: 11267940
    Abstract: 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: Grant
    Filed: May 12, 2017
    Date of Patent: March 8, 2022
    Assignee: TOSOH FINECHEM CORPORATION
    Inventors: Koichiro Inaba, Kouji Toyota, Kenichi Haga, Toshio Naka, Toshiaki Taniike
  • Publication number: 20220056006
    Abstract: 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: Application
    Filed: December 20, 2019
    Publication date: February 24, 2022
    Applicants: TOSOH CORPORATION, TOSOH FINECHEM CORPORATION
    Inventors: Hideki MIYAUCHI, Shota NISHIDA, Daisuke INOUE, Yusuke SHIGETA, Norihisa KONDO, Makoto WATANABE, Shohei YUMINO, Tomoya SHIMONO
  • Publication number: 20220002262
    Abstract: 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-di
    Type: Application
    Filed: November 6, 2019
    Publication date: January 6, 2022
    Applicants: TOSOH CORPORATION, TOSOH FINECHEM CORPORATION
    Inventors: Hideki MIYAUCHI, Hiroshi MATSUO, Yuichi MIYASHITA, Akihiro FUJI, Yusuke SHIGETA, Shota NISHIDA, Norihisa KONDO, Makoto WATANABE
  • Publication number: 20210214332
    Abstract: Provided is a method of manufacturing a trifluoropyruvyl fluoride dimer, including a reaction step of reacting hexafluoropropylene oxide and aldehyde.
    Type: Application
    Filed: September 3, 2019
    Publication date: July 15, 2021
    Applicants: TOSOH CORPORATION, TOSOH FINECHEM CORPORATION
    Inventors: Hideki MIYAUCHI, Hiroshi MATSUO, Takumi KAGAWA, Norihisa KONDO, Hideyuki MIMURA
  • Patent number: 10870666
    Abstract: 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: Grant
    Filed: October 4, 2017
    Date of Patent: December 22, 2020
    Assignee: TOSOH FINECHEM CORPORATION
    Inventors: Hiroshi Matsuo, Yujin Takemoto, Kotaro Sakoda, Toshio Naka
  • Patent number: 10793652
    Abstract: 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: Grant
    Filed: April 4, 2017
    Date of Patent: October 6, 2020
    Assignee: Tosoh Finechem Corporation
    Inventors: Eiichi Kaji, Takeo Yamane
  • Patent number: 10730969
    Abstract: 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: Grant
    Filed: November 22, 2016
    Date of Patent: August 4, 2020
    Assignee: Tosoh Finechem Corporation
    Inventors: Kentaro Sakai, Yujin Takemoto, Eiichi Kaji
  • Patent number: 10654779
    Abstract: There is provided a substituted bis(trifluorovinyl)benzene compound that is excellent in heat stability and is industrially useful, and a method for producing the same. There are used a substituted bis(trifluorovinyl)benzene compound represented by general formula (1); and a method for producing a substituted bis(trifluorovinyl)benzene compound, comprising the step of reacting in the presence of a catalyst (such as palladium) a bishalobenzene derivative represented by general formula (3) and a compound obtained by reacting 1,1,1,2-tetrafluoroethane, a zinc halide, and an organolithium compound and represented by general formula (4), to thereby obtain a substituted bis(trifluorovinyl)benzene compound represented by general formula (1).
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: May 19, 2020
    Assignee: TOSOH FINECHEM CORPORATION
    Inventors: Hideki Miyauchi, Norihisa Kondo, Noritaka Nagasaki
  • Publication number: 20200144623
    Abstract: 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: Application
    Filed: March 14, 2018
    Publication date: May 7, 2020
    Applicant: Tosoh Finechem Corporation
    Inventors: Yujin TAKEMOTO, Masahiro AOKI, Kouji TOYOTA, Koichiro INABA, Kentaro SAKAI
  • Publication number: 20200048282
    Abstract: 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: Application
    Filed: October 4, 2017
    Publication date: February 13, 2020
    Applicants: Tosoh Finechem Corporation, Tosoh Finechem Corporation
    Inventors: Hiroshi MATSUO, Yujin TAKEMOTO, Kotaro SAKODA, Toshio NAKA
  • Patent number: 10381488
    Abstract: A dialkylzinc partial hydrolysate-containing solution which can be handled in air and can form a zinc oxide thin film in air and a method for producing the zinc oxide thin film are provided. The dialkylzinc partial hydrolysate-containing solution contains a partial hydrolysate of dialkyl zinc represented by general formula (1) and a solvent which has a boiling point of 160° C. or higher, an amide structure represented by general formula (2), and which is an organic compound having a cyclic structure. The partial hydrolysate is the dialkylzinc hydrolyzed with water in a molar ratio in the range of 0.4 to 0.9 with respect to zinc in the dialkylzinc. A method for producing the zinc oxide thin film by applying the dialkylzinc partial hydrolysate-containing solution to a base material is also provided.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: August 13, 2019
    Assignee: Tosoh Finechem Corporation
    Inventors: Kouji Toyota, Koichiro Inaba, Toshio Naka