Patents Assigned to Tosoh F-Tech, Inc.
  • Patent number: 10087147
    Abstract: Provided are 5-(trifluoromethyl)pyrimidine derivatives useful as intermediates for pharmaceuticals and agrochemicals and as intermediates for electronic materials and methods for producing the same. 2,4-dichloro-5-(trifluoromethyl)pyrimidine is reacted with 2,2,2-trifluoroethanol, benzyl alcohol, or benzenethiol to obtain the intended 2-(2,2,2-trifluoroethoxy)-4-chloro-5-(trifluoromethyl)pyrimidine, 2-benzyloxy-4-chloro-5-(trifluoromethyl)pyrimidine, 2,4-bis(2,2,2-trifluoroethoxy)-5-(trifluoromethyl)pyrimidine, or 2-chloro-4-phenylthio-5-(trifluoromethyl)pyrimidine.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: October 2, 2018
    Assignee: TOSOH F-TECH, INC.
    Inventors: Takumi Kagawa, Daiki Shigehiro, Kosuke Kawada
  • Patent number: 9879037
    Abstract: [Problem] To provide a fluorine-containing phosphate ester-amide which has high flame retardancy such as exhibiting flame retardant effects at a small quantity of addition, and sufficient hydrolysis resistance. [Solution] A fluorine-containing phosphate ester-amide represented by general formula (1). (In the formula, R1 and R2 are the same or different and represent a branched or linear alkyl group having 1 to 20 carbon atoms in which at least one carbon bonded to a nitrogen atom is a secondary or tertiary carbon, wherein R1 and R2 may have a substituent group selected from the group consisting of an alkoxy group, a hydroxy group, an amino group, a methyl amino group, an ethyl amino group, a dimethyl amino group, diethyl amino group and a fluorine atom. In addition, R1 and R2 may be bonded together to form a five- to eight-membered cyclic structure. X and Y are the same or different and represent a hydrogen atom or a fluorine atom, and n and m represent an integer of 1 to 6.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: January 30, 2018
    Assignee: TOSOH F-TECH, INC.
    Inventors: Hideyuki Mimura, Hiroaki Fujita, Hisao Eguchi
  • Patent number: 9656970
    Abstract: Provided are 5-(trifluoromethyl)pyrimidine derivatives useful as intermediates for pharmaceuticals and agrochemicals and as intermediates for electronic materials and methods for producing the same. 2,4-dichloro-5-(trifluoromethyl)pyrimidine is reacted with 2,2,2-trifluoroethanol, benzyl alcohol, or benzenethiol to obtain the intended 2-(2,2,2-trifluoroethoxy)-4-chloro-5-(trifluoromethyl)pyrimidine, 2-benzyloxy-4-chloro-5-(trifluoromethyl)pyrimidine, 2,4-bis(2,2,2-trifluoroethoxy)-5-(trifluoromethyl)pyrimidine, or 2-chloro-4-phenylthio-5-(trifluoromethyl)pyrimidine.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: May 23, 2017
    Assignee: TOSOH F-TECH, INC.
    Inventors: Takumi Kagawa, Daiki Shigehiro, Kosuke Kawada
  • Patent number: 9496092
    Abstract: Provided is a flame-retardant electrolytic capacitor which is capable of maintaining flame-retardant effect even after a prolonged period of time. This is an electrolytic capacitor comprising an anode foil that is provided with an oxide film on the surface, a cathode foil, a separator, and an electrolytic solution that contains a solute in a solvent, wherein a phosphoric acid ester amide represented by the following general formula (1) is contained in the electrolytic solution: in which n is 1 or 2, and R1 and R2 each independently represent a linear or branched alkyl group having 1 to 10 carbon atoms, and Rf represents a linear or branched fluoroalkyl group having 1 to 10 carbon atoms or a linear or branched alkyl group having 1 to 10 carbon atoms).
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: November 15, 2016
    Assignees: NIPPON CHEMI-CON CORPORATION, TOSOH F-TECH, INC.
    Inventors: Masashi Ozawa, Junichi Kawakami, Hideyuki Mimura, Hisao Eguchi
  • Patent number: 9472829
    Abstract: A method for stabilizing a solution that contains LiPF6 by increasing thermal stability of LiPF6 without changing the structure thereof; an electrolyte solution for nonaqueous secondary batteries, which has increased thermal stability; and a nonaqueous secondary battery which has increased thermal stability. The solution containing LiPF6 contains a phosphoric acid ester amide in such an amount that the molar ratio of the phosphoric acid ester amide relative to LiPF6 is 0.001-2.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: October 18, 2016
    Assignee: TOSOH F-TECH, INC.
    Inventors: Masahiro Aoki, Hideyuki Mimura, Hisao Eguchi
  • Publication number: 20150140445
    Abstract: [Problem] To provide: a method for stabilizing a solution that contains LiPF6 by increasing thermal stability of LiPF6 without changing the structure thereof; an electrolyte solution for nonaqueous secondary batteries, which has increased thermal stability; and a nonaqueous secondary battery which has increased thermal stability. [Solution] To have a solution containing LiPF6 contain a phosphoric acid ester amide represented by general formula (I) in such an amount that the molar ratio of the phosphoric acid ester amide relative to LiPF6 is 0.001-2.
    Type: Application
    Filed: June 13, 2013
    Publication date: May 21, 2015
    Applicant: TOSOH F-TECH, INC.
    Inventors: Masahiro Aoki, Hideyuki Mimura, Hisao Eguchi
  • Publication number: 20150053901
    Abstract: [Problem] To provide a fluorine-containing phosphate ester-amide which has high flame retardancy such as exhibiting flame retardant effects at a small quantity of addition, and sufficient hydrolysis resistance. [Solution] A fluorine-containing phosphate ester-amide represented by general formula (1). (In the formula, R1 and R2 are the same or different and represent a branched or linear alkyl group having 1 to 20 carbon atoms in which at least one carbon bonded to a nitrogen atom is a secondary or tertiary carbon, wherein R1 and R2 may have a substituent group selected from the group consisting of an alkoxy group, a hydroxy group, an amino group, a methyl amino group, an ethyl amino group, a dimethyl amino group, diethyl amino group and a fluorine atom. In addition, R1 and R2 may be bonded together to form a five- to eight-membered cyclic structure. X and Y are the same or different and represent a hydrogen atom or a fluorine atom, and n and m represent an integer of 1 to 6.
    Type: Application
    Filed: March 22, 2013
    Publication date: February 26, 2015
    Applicant: TOSOH F- TECH, INC.
    Inventors: Hideyuki Mimura, Hiroaki Fujita, Hisao Eguchi
  • Patent number: 8703969
    Abstract: A trifluoromethylthiophenium derivative salt useful as synthetic intermediates for pharmaceuticals and agrochemicals, a method for producing the same, and a method for producing trifluoromethyl-containing compounds using the same are provided. An S-(trifluoromethyl)-benzo[b]thiophenium derivative salt is represented by the following general formula (1): wherein R1, R2, R3, and R4 are each independently a hydrogen atom, a methyl group, an ethyl group, a linear, branched, or cyclic alkyl group having 3 to 10 carbon atoms, a methoxy group, an ethoxy group, a linear, branched, or cyclic alkyloxy group having 3 to 10 carbon atoms, a fluorine atom, a chlorine atom, a bromine atom, a nitro group, or a cyano group, R5 is a methyl group, an ethyl group, a linear, branched, or cyclic alkyl group having 3 to 10 carbon atoms, a phenyl group, or a substituted phenyl group, and X? represents an anion.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: April 22, 2014
    Assignees: Nagoya Institute of Technology, Tosoh F-Tech, Inc.
    Inventors: Norio Shibata, Takumi Kagawa
  • Publication number: 20120094190
    Abstract: As to a fluorine-containing phosphate used to impart flame retardancy to an electrolyte solution for a non-aqueous secondary battery, a fluorine-containing phosphate having high flame retardancy and providing high battery performance such as high-rate charge-discharge characteristics, and a method for manufacturing the same are provided. Also provided are a non-aqueous electrolyte solution and a non-aqueous secondary battery each containing the fluorine-containing phosphate. Further a fluorine-containing phosphate having a high ability to dissolve an electrolyte and capable of providing the composition of a safer electrolyte solution is provided.
    Type: Application
    Filed: July 30, 2010
    Publication date: April 19, 2012
    Applicant: TOSOH F-TECH, INC.
    Inventors: Hideyuki Mimura, Kentaro Kono, Hisao Eguchi, Kotaro Sakoda, Masahiro Aoki
  • Publication number: 20120009382
    Abstract: The object of the invention is to provide a protective sheet for photovoltaic apparatus best-suited to build up a photovoltaic apparatus having higher light efficiency than could be achieved with conventional structure. The protective sheet for photovoltaic apparatus comprises a transparent substrate, and a transparent resin layer located on the surface of the transparent substrate and having fine convexities and concavities. The transparent resin of the transparent resin layer has a refractive index equal to or less than that of the transparent substrate.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 12, 2012
    Applicant: TOSOH F-TECH, INC.
    Inventors: Yasukazu KISHIMOTO, Toru Yoshida
  • Publication number: 20110256375
    Abstract: The invention has for its object to coat a single layer form of low-refractive organic thin-film layer on a cover glass of a solar battery to enhance the light-collection efficiency of a solar battery module by a simple method, thereby enhancing the ability of collect sunlight. The invention provides a coating layer for solar batteries which can be formed directly on a protective layer of a solar battery module and used in direct contact with the air. The fluorine-containing coating layer for solar batteries is characterized by having a fluorine content of 5% by weight or greater.
    Type: Application
    Filed: July 6, 2010
    Publication date: October 20, 2011
    Applicant: TOSOH F-TECH, INC.
    Inventors: Toru YOSHIDA, Yasukazu Kishimoto
  • Publication number: 20110253951
    Abstract: The present invention relates to a composition for low-refractive-index films, components (b) and (c), and an organic solvent. Component (b) is a fluorine-containing polymer. Component (c) is one or more of acrylic acid derivatives and methacrylic acid derivatives having 1 to 5 acryloyl groups or methacryloyl groups. Component (b) is a copolymer comprising 10 to 50 parts by mole of one or more of fluorine-containing polymers having cyclic structures as represented by formulae (1), (2) and (3), and tetrafluoroethylene; 0 to 50 parts by mole of hexafluoropropylene; 90 to 10 parts by mole of vinylidene fluoride; and 10 to 100 parts by mole of vinyl fluoride and component (b) is one or more of methacrylate compounds and acrylate compounds containing a fluoroalkyl group having 1 to 10 carbon atoms.
    Type: Application
    Filed: July 6, 2010
    Publication date: October 20, 2011
    Applicant: TOSOH F-TECH, INC.
    Inventors: Toru YOSHIDA, Yasukazu KISHIMOTO
  • Patent number: 7981318
    Abstract: Provided is a reaction reagent for trifluoromethylation with high general versatility and good efficiency. The reaction reagent for trifluoromethylation contains an iron compound, trifluoromethyl iodide, a sulfoxide and a peroxide, and may further contain an acid. The iron compound is, for example, iron(II) sulfate, ammonium iron(II) sulfate, iron(II) tetrafluoroborate, ferrocene, bis(?5-pentamethylcyclopentadienyl)iron or an iron powder; the sulfoxide is, for example, dimethyl sulfoxide; the peroxide is, for example, hydrogen peroxide or hydrogen peroxide-urea composite; and the acid is, for example, sulfuric acid, tetrafluoroboric acid or trifluoromethanesulfonic acid.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: July 19, 2011
    Assignees: Sagami Chemical Research Center, Tosoh F-Tech, Inc.
    Inventors: Tetsu Yamakawa, Kyoko Yamamoto, Daisuke Uraguchi, Kenji Tokuhisa
  • Patent number: 7884202
    Abstract: Nucleobases are perfluoroalkylated in a one step process with a perfluoroalkyl halide in the presence of a sulfoxide, a peroxide and an iron compound. Compounds so produced are useful as medicinal drugs, intermediates for medicinal drugs and agricultural chemicals.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: February 8, 2011
    Assignees: Tosoh Corporation, Tosoh F-Tech, Inc., Sagami Chemical Research Center
    Inventors: Tetsu Yamakawa, Kyoko Yamamoto, Daisuke Uraguchi, Kenji Tokuhisa
  • Patent number: 7638654
    Abstract: A novel 1-fluoro-1,1-bis(arylsulfonyl)methane is provided which is useful in monofluoromethylation. Also provided is a production method thereof. A method for producing a fluorobis(arylsulfonyl)methane, the method including the steps of: treating a bis(arylsulfonyl)methane represented by the following formula (1), (ArSO2)2CH2??(1) (wherein Ar represents a substituted or unsubstituted phenyl group or naphthyl group) with a base; and then adding a fluorination reagent thereto, to produce fluorobis(arylsulfonyl)methane represented by the following formula (2) (ArSO2)2CHF??(2) (wherein Ar is defined as above), and a fluorobis(arylsulfonyl)methane (2) represented by the above formula (2), which is a novel compound that is very useful in producing a monofluoromethyl.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: December 29, 2009
    Assignees: Nagoya Institute of Technology, Tosoh F-Tech, Inc.
    Inventors: Takeshi Toru, Norio Shibata, Shuichi Nakamura, Takeo Fukuzumi
  • Patent number: 7615669
    Abstract: The present invention provides a process for producing highly pure fluoro-compounds by making use of N-(2-chloro-1,1,2-trifluoroethyl)diethylamine. The process produces little or no chlorinated by-products.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: November 10, 2009
    Assignee: Tosoh F-Tech, Inc.
    Inventors: Norihisa Kondo, Akio Watanabe, Hiroki Kanezaki, Kosuke Kawada
  • Publication number: 20090109604
    Abstract: A gas insulated switchgear is provided which uses an SF6 substitute gas as an insulating gas and thus causes reduced environmental load while achieving high dielectric strength and excellent interrupting performance. The gas insulated switchgear includes a switchgear housed in a container filled with an insulating gas.
    Type: Application
    Filed: September 12, 2006
    Publication date: April 30, 2009
    Applicants: TOKYO DENKI UNIVERSITY, TOSOH F-TECH, INC.
    Inventors: Satoru Yanabu, Hiromi Odaka
  • Patent number: 7476768
    Abstract: A catalyst for oxidizing 2,2,2-trifluoroethanol to form trifluoroacetaldehyde. The catalyst has a long life and achieves high conversion and selectivity. The catalyst of the present invention comprises one or more metal oxides, including at least vanadium oxide, and zirconia as a carrier.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: January 13, 2009
    Assignee: Tosoh F-Tech, Inc.
    Inventors: Hideyuki Mimura, Akio Watanabe, Noritaka Nagasaki, Kosuke Kawada
  • Patent number: 7470808
    Abstract: A process for producing a fluorine-containing acrylic acid ester represented by CH2?C(Rf)(COOR) characterized in that 1-bromo-1-perfluoroalkylethene represented by CH2?CBr—Rf, or 1,2-dibromo-1-perfluoroalkylethane represented by CH2CBr—CHBr—Rf is allowed to react with an alcohol represented by ROH in the presence of a palladium catalyst, carbon monoxide, and two or more kinds of bases. The fluorine-containing acrylic acid ester is a useful compound having wide applications in materials for pharmaceuticals and functional polymers.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: December 30, 2008
    Assignees: Tosoh F-Tech, Inc., Sagami Chemical Research Center
    Inventors: Takamasa Fuchikami, Noriko Wakasa, Kenji Tokuhisa, Hideyuki Mimura, Shoji Arai
  • Patent number: 7220878
    Abstract: The present invention concerns a method for purifying/separating a 2-fluoro-3-oxoalkylcarboxylic acid ester from a reaction mixture resulting from the fluorination of a 3-oxoalkylcarboxylic acid ester. The method involves depleting the reaction mixture of a hydrogen fluoride byproduct; and subsequently, separating the 2-fluoro-3-oxoalkylcarboxylic acid ester by distillation. The 2-fluoro-3-oxoalkylcarboxylic acid ester obtained by the method of the invention is highly pure and is thus suitable for use as an intermediate for the production of pharmacological products or agricultural chemicals.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: May 22, 2007
    Assignee: Tosoh F-Tech, Inc.
    Inventors: Norihisa Kondo, Hideyuki Mimura, Kosuke Kawada, Shoji Arai