Patents Assigned to Tosoh F-Tech, Inc.
-
Patent number: 10087147Abstract: 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: GrantFiled: April 14, 2017Date of Patent: October 2, 2018Assignee: TOSOH F-TECH, INC.Inventors: Takumi Kagawa, Daiki Shigehiro, Kosuke Kawada
-
Patent number: 9879037Abstract: [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: GrantFiled: March 22, 2013Date of Patent: January 30, 2018Assignee: TOSOH F-TECH, INC.Inventors: Hideyuki Mimura, Hiroaki Fujita, Hisao Eguchi
-
Patent number: 9656970Abstract: 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: GrantFiled: April 23, 2015Date of Patent: May 23, 2017Assignee: TOSOH F-TECH, INC.Inventors: Takumi Kagawa, Daiki Shigehiro, Kosuke Kawada
-
Patent number: 9496092Abstract: 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: GrantFiled: July 1, 2013Date of Patent: November 15, 2016Assignees: NIPPON CHEMI-CON CORPORATION, TOSOH F-TECH, INC.Inventors: Masashi Ozawa, Junichi Kawakami, Hideyuki Mimura, Hisao Eguchi
-
Patent number: 9472829Abstract: 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: GrantFiled: June 13, 2013Date of Patent: October 18, 2016Assignee: TOSOH F-TECH, INC.Inventors: Masahiro Aoki, Hideyuki Mimura, Hisao Eguchi
-
Publication number: 20150140445Abstract: [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: ApplicationFiled: June 13, 2013Publication date: May 21, 2015Applicant: TOSOH F-TECH, INC.Inventors: Masahiro Aoki, Hideyuki Mimura, Hisao Eguchi
-
Publication number: 20150053901Abstract: [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: ApplicationFiled: March 22, 2013Publication date: February 26, 2015Applicant: TOSOH F- TECH, INC.Inventors: Hideyuki Mimura, Hiroaki Fujita, Hisao Eguchi
-
Patent number: 8703969Abstract: 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: GrantFiled: July 13, 2010Date of Patent: April 22, 2014Assignees: Nagoya Institute of Technology, Tosoh F-Tech, Inc.Inventors: Norio Shibata, Takumi Kagawa
-
Publication number: 20120094190Abstract: 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: ApplicationFiled: July 30, 2010Publication date: April 19, 2012Applicant: TOSOH F-TECH, INC.Inventors: Hideyuki Mimura, Kentaro Kono, Hisao Eguchi, Kotaro Sakoda, Masahiro Aoki
-
Publication number: 20120009382Abstract: 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: ApplicationFiled: July 6, 2010Publication date: January 12, 2012Applicant: TOSOH F-TECH, INC.Inventors: Yasukazu KISHIMOTO, Toru Yoshida
-
Publication number: 20110256375Abstract: 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: ApplicationFiled: July 6, 2010Publication date: October 20, 2011Applicant: TOSOH F-TECH, INC.Inventors: Toru YOSHIDA, Yasukazu Kishimoto
-
Publication number: 20110253951Abstract: 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: ApplicationFiled: July 6, 2010Publication date: October 20, 2011Applicant: TOSOH F-TECH, INC.Inventors: Toru YOSHIDA, Yasukazu KISHIMOTO
-
Patent number: 7981318Abstract: 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: GrantFiled: November 6, 2007Date of Patent: July 19, 2011Assignees: Sagami Chemical Research Center, Tosoh F-Tech, Inc.Inventors: Tetsu Yamakawa, Kyoko Yamamoto, Daisuke Uraguchi, Kenji Tokuhisa
-
Patent number: 7884202Abstract: 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: GrantFiled: November 6, 2006Date of Patent: February 8, 2011Assignees: Tosoh Corporation, Tosoh F-Tech, Inc., Sagami Chemical Research CenterInventors: Tetsu Yamakawa, Kyoko Yamamoto, Daisuke Uraguchi, Kenji Tokuhisa
-
Patent number: 7638654Abstract: 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: GrantFiled: March 2, 2007Date of Patent: December 29, 2009Assignees: Nagoya Institute of Technology, Tosoh F-Tech, Inc.Inventors: Takeshi Toru, Norio Shibata, Shuichi Nakamura, Takeo Fukuzumi
-
Patent number: 7615669Abstract: 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: GrantFiled: March 22, 2006Date of Patent: November 10, 2009Assignee: Tosoh F-Tech, Inc.Inventors: Norihisa Kondo, Akio Watanabe, Hiroki Kanezaki, Kosuke Kawada
-
Publication number: 20090109604Abstract: 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: ApplicationFiled: September 12, 2006Publication date: April 30, 2009Applicants: TOKYO DENKI UNIVERSITY, TOSOH F-TECH, INC.Inventors: Satoru Yanabu, Hiromi Odaka
-
Patent number: 7476768Abstract: 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: GrantFiled: November 29, 2005Date of Patent: January 13, 2009Assignee: Tosoh F-Tech, Inc.Inventors: Hideyuki Mimura, Akio Watanabe, Noritaka Nagasaki, Kosuke Kawada
-
Patent number: 7470808Abstract: 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: GrantFiled: March 24, 2004Date of Patent: December 30, 2008Assignees: Tosoh F-Tech, Inc., Sagami Chemical Research CenterInventors: Takamasa Fuchikami, Noriko Wakasa, Kenji Tokuhisa, Hideyuki Mimura, Shoji Arai
-
Patent number: 7220878Abstract: 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: GrantFiled: September 27, 2001Date of Patent: May 22, 2007Assignee: Tosoh F-Tech, Inc.Inventors: Norihisa Kondo, Hideyuki Mimura, Kosuke Kawada, Shoji Arai