Patents Assigned to Nippon Shokubai Co., Ltd.
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Publication number: 20230265301Abstract: The ink-jet ink of the present invention comprises a solvent S having an SP value of 9.1-9.4, resin emulsion particles and water. It is preferable that the resin emulsion particles contain a (meth)acrylic polymer. It is also preferable that the resin emulsion particles contain a structural unit derived from styrene. It is also preferable that the solvent S is tripropylene glycol monomethyl ether and/or monoethylene glycol monoisopropyl ether.Type: ApplicationFiled: January 13, 2021Publication date: August 24, 2023Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Keiichi Nakamoto, Takumi Ito, Yoshimine Sakamoto
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Patent number: 11724483Abstract: The objective of the present invention is to, in a resin film containing an anti-blocking agent (organic polymer particles), achieve both a reduction in friction of the film and suppression of dropping-off of particles from the film surface. The laminated resin film of the present invention has a base film layer and a surface layer, and the surface layer contains organic polymer particles serving as an anti-blocking agent. The number proportion of the organic polymer particles having a particle size that is at least twice the average thickness of the surface layer is 35% or more of the total number of the organic polymer particles, and the number proportion of the organic polymer particles having a particle size that is at least four times the average thickness of the surface layer is 10% or less of the total number of the organic polymer particles.Type: GrantFiled: August 9, 2017Date of Patent: August 15, 2023Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Hiroko Okochi, Tomonari Takata, Yasutaka Nakatani
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Publication number: 20230250045Abstract: A method for producing an easily polymerizable compound, comprising a step of introducing an easily polymerizable compound-containing liquid into a vaporization separation column (1) selected from a distillation column and a stripping column to purify, wherein: the vaporization separation column (1) is provided with a circulation path (2) for returning a drawn liquid, obtained by withdrawing at least a part of a bottom liquid (3) of the column, to the vaporization separation column (1); the circulation path (2) is provided with a reboiler (4) having a heating part (5) and a supply port (7) for supplying an oxygen-containing gas on an upstream side of the reboiler (4); the supply port (7) is located below an inlet of the heating part (5) with a height difference of 0.5 m or more; and an oxygen-containing gas is supplied to the drawn liquid from the supply port (7).Type: ApplicationFiled: May 31, 2021Publication date: August 10, 2023Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Yuki KASE, Takashi SUGIMOTO
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Publication number: 20230202960Abstract: A method for producing an easily polymerizable compound, comprising a polymerization prevention step of supplying an oxygen-containing gas to an easily polymerizable compound-containing liquid through a gas supply means having one or more supply ports, wherein an area S (mm2) per one supply port is 0.1 or more and 20 or less, and a ratio V/S of a linear velocity V (m/s) of the gas at the supply port to the area S in the polymerization preventing step is 6.0 or more.Type: ApplicationFiled: May 31, 2021Publication date: June 29, 2023Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Yuki KASE, Takashi SUGIMOTO
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Patent number: 11661393Abstract: Provided is a method of producing various 2-((meth)allyloxymethyl)acrylic acid derivatives in high yields with no need to load a raw material in a large excess for improving a reaction conversion ratio, and without use of a catalyst having high toxicity or a strong acid catalyst. Also provided are powder compounds that may be utilized as raw materials for synthesizing various chemical products. A method of producing a 2-((meth)allyloxymethyl)acrylic acid derivative includes causing the powder of a salt of a 2-((meth)allyloxymethyl)acrylic acid anion and an alkali metal cation (component A), and a halide (component B) to react with each other to produce a 2-((meth)allyloxymethyl)acrylic acid derivative. The 2-((meth)allyloxymethyl)acrylic acid alkali metal salt powder is the powder of a salt of a 2-((meth)allyloxymethyl)acrylic acid anion and an alkali metal cation, and has a bulk density of 0.50 g/mL or more, or a water content of 0.05 wt % or less.Type: GrantFiled: July 31, 2020Date of Patent: May 30, 2023Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Minoru Urata, Kazuhiko Nakamura, Jun Moteki
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Publication number: 20230149854Abstract: A draw solute for the forward osmosis membrane process comprises a random copolymer obtainable by random addition of a monomer containing ethylene oxide and butylene oxide to a compound having one or more hydroxyl groups.Type: ApplicationFiled: April 7, 2021Publication date: May 18, 2023Applicants: Nippon Shokubai Co., Ltd., Trevi Systems Inc.Inventors: Hiroki Tokushima, Akitoshi Matono, John Webley
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Patent number: 11643490Abstract: The present invention aims to provide a method capable of easily and efficiently producing a vinyl ether group-containing (meth)acrylic acid ester polymer. The present invention relates to a method of producing a vinyl ether group-containing (meth)acrylic acid ester polymer, the method including group-transfer polymerizing a monomer component containing a vinyl ether group-containing (meth)acrylic acid ester represented by the following formula (1), in the presence of a carbon-carbon double bond-containing silane compound and a catalyst, wherein R1 is a hydrogen atom or a methyl group; R2 and R3 are the same as or different from each other and are each a hydrogen atom or an organic group; R4 is a hydrogen atom or an organic group; and n is an integer of 1 or more.Type: GrantFiled: June 7, 2019Date of Patent: May 9, 2023Assignee: Nippon Shokubai Co., Ltd.Inventor: Munehiro Hasegawa
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Patent number: 11639299Abstract: A draw solute for forward osmosis membrane process, comprising an addition polymer obtained by addition polymerization of an alkylene oxide having 2 to 10 carbon atoms to an amine compound.Type: GrantFiled: August 28, 2019Date of Patent: May 2, 2023Assignees: Nippon Shokubai Co., Ltd., National University Corporation Kobe UniversityInventors: Koji Koyama, Yuki Miyoshi, Hideto Matsuyama, Asuka Inada
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Patent number: 11637320Abstract: An electrolytic solution comprising N-(fluorosulfonyl)-N-(fluoroalkylsulfonyl)imide or di(fluorosulfonyl)imide, from which a residual solvent that affects the properties of the electrolyte solution material is reduced, is provided. A method for producing an electrolyte solution material containing fluorosulfonyl imide salt represented by the following general formula (1) and an electrolyte solution preparation solvent comprises decompressing and/or heating a solution containing the fluorosulfonyl imide salt and the electrolyte solution preparation solvent to volatilize a production solvent for the fluorosulfonyl imide salt. In general formula (1), R1 represents a fluorine atom or a fluorinated alkyl group having 1 to 6 carbon atoms, R2 represents an alkali metal ion.Type: GrantFiled: October 5, 2015Date of Patent: April 25, 2023Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Yasunori Okumura, Shimpei Sato, Masayuki Okajima, Takayuki Kobatake, Hiromoto Katsuyama
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Patent number: 11633717Abstract: Provided are a water-absorbing resin having more excellent balance of fluid retention capacity, liquid permeability, and low dustiness and a novel measurement method which enables evaluation of excellent physical properties of the water-absorbing resin. A method for measuring an absorption speed of a particulate water-absorbing agent is a method including the step of applying pressure to a portion of a bottom surface of a measurement container (51) by use of a flat plate (52) in a state in which part or whole of the particulate water-absorbing agent (56) is fixed on the bottom surface of the measurement container (51), the bottom surface being surrounded by a frame, introducing an aqueous solution through a liquid injection inlet (54) with which the flat plate (52) is equipped, and then measuring the amount of time elapsed until an end of absorption of the introduced aqueous solution by the particulate water-absorbing agent (56).Type: GrantFiled: October 12, 2018Date of Patent: April 25, 2023Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Kazushi Torii, Yuika Noda, Daisuke Takagi
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Patent number: 11631794Abstract: A thermoelectric material of the present invention includes copper, tin, and sulfur, wherein a ratio A/B of the number A of copper atoms to the number B of tin atoms is 0.5 to 2.5 and a content of a metal element other than copper and tin is 5 mol % or less with respect to total metal elements. Additionally, the thermoelectric material of the present invention has a thermal conductivity less than 1.0 W/(m·K) at 200 to 400° C.Type: GrantFiled: April 28, 2017Date of Patent: April 18, 2023Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Takeo Akatsuka, Hironobu Ono, Shinya Maenosono, Mikio Koyano
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Patent number: 11618726Abstract: [Objective] An object is to provide a method for producing a diol by which diols having a favorable color scale and containing a reduced amount of an unsaturated aliphatic hydrocarbon can be produced.Type: GrantFiled: November 16, 2021Date of Patent: April 4, 2023Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Akimasa Watanabe, Akiko Yamauchi
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Patent number: 11618739Abstract: There is provided a method of producing ethylene oxide and ethylene glycol capable of reducing a concentration in discharged water of 1,4-dioxane contained generated in a step of producing ethylene oxide and ethylene glycol. A method of producing ethylene oxide and ethylene glycol includes a predetermined step of producing ethylene oxide, and a step of extracting a part of a column bottom liquid of an ethylene oxide stripping column in the step of producing ethylene oxide and supplying the extracted column bottom liquid to a by-produced ethylene glycol concentration column, concentrating ethylene glycol produced as a by-product in the step of producing ethylene oxide, and distilling and separating 1,4-dioxane produced as a by-product in the step of producing ethylene oxide, wherein the by-produced ethylene glycol concentration column is a divided wall distillation column.Type: GrantFiled: August 9, 2019Date of Patent: April 4, 2023Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Shota Sato, Hideto Suzuki, Daisuke Higashioka
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Publication number: 20230094605Abstract: A resin emulsion to be used in a water-based ink, wherein the resin emulsion for a water-based ink is characterized by containing emulsion particles and a carboxylic acid polymer non-metal salt and by the emulsion particles containing a polymer comprising a monomer component including a nitrogen atom-containing monomer; and a resin emulsion for a water-based ink that can be used suitably in the water-based ink and a method for producing the same.Type: ApplicationFiled: January 16, 2021Publication date: March 30, 2023Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Takumi ITO, Yoshimine SAKAMOTO
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Patent number: 11613820Abstract: The invention provides a diaphragm for alkaline water electrolysis with reduced dissolution of an inorganic component in an alkali solution at low cost. The present invention relates to a diaphragm for alkaline water electrolysis, including magnesium hydroxide and an organic polymer resin.Type: GrantFiled: July 4, 2018Date of Patent: March 28, 2023Assignee: Nippon Shokubai Co., Ltd.Inventors: Shinya Nakayama, Kazuki Furusho
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Publication number: 20230089471Abstract: To provide a composition containing a sulfonylimide salt, which has excellent storage stability even at a high temperature and can be used for an electrolytic solution material or an electrolytic solution. The composition contains an electrolyte, a solvent, and an anion component. The electrolyte contains a sulfonylimide salt, the anion component contains an acid component having an acid-dissociation constant pKa (an acid-dissociation constant pKa1 in a first stage for a plurality of ionized acids) of 0 or more and 6.5 or less at a concentration of 50 ppm or more and 10000 ppm or less relative to the electrolyte, a concentration of fluoride ion is 100 ppm or less relative to the electrolyte, and a concentration of sulfate ion is 100 ppm or less relative to the electrolyte.Type: ApplicationFiled: February 4, 2021Publication date: March 23, 2023Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Yusuke OYAMA, Motohiro ARAKAWA, Takayuki KOBATAKE, Chie ONODA
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Patent number: 11607667Abstract: Provided is a water-absorbing agent that causes no or little fluctuation of feed rate when fed with use of a feeder. A water-absorbing agent containing a water-absorbing resin as a main component, the water-absorbing agent satisfying the following (a) and (b): (a) K-index is 70 or more; and (b) Moisture absorption blocking ratio, after 30 minutes of standing at a temperature of 25° C. and a relative humidity of 80% RH, is 70 weight % or less, the K-index being defined by the following equation: K-index=100?(?438+3.6×angle of repose+3.5×angle of difference+7.9×compressibility rate+290×bulk density (EDANA method)).Type: GrantFiled: November 14, 2018Date of Patent: March 21, 2023Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Hiroki Kawada, Taku Iwamura, Koji Tachi, Makiko Masuda, Yasuhisa Nakashima, Kazushi Torii, Yukihiro Kasano
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Patent number: 11602577Abstract: Provided is a water-absorbing agent having an excellent ability to absorb and retain liquid and an excellent liquid suction power. The water-absorbing agent contains a polyacrylic acid (salt)-based water-absorbing resin as a main component and satisfies all of the following physical properties (a) to (e): (a) a weight average particle diameter (D50) is 300 ?m or more and less than 400 ?m; (b) a proportion of particles with a particle diameter of 600 ?m or more and less than 850 ?m is less than 10 weight %; (c) an average gap radius is 100 ?m or more and less than 180 ?m; (d) a CRC is 28 g/g or more and less than 34 g/g; and (e) an AAP is 24 g/g or more.Type: GrantFiled: March 28, 2017Date of Patent: March 14, 2023Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Kazuki Kimura, Nobuya Tanaka, Yuki Tanaka, Daisuke Takeda
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Patent number: 11561185Abstract: In an electrolyte sheet for a solid oxide fuel cell according to the present invention, the number of flaws on at least one of surfaces of the sheet detected by a fluorescent penetrant inspection is 30 points or less in each of sections obtained by dividing the sheet into the sections each measuring 30 mm or less on a side. A unit cell for a solid oxide fuel cell according to the present invention comprises a fuel electrode, an air electrode, and the electrolyte sheet for a solid oxide fuel cell according to the present invention, which is disposed between the fuel electrode and the air electrode. A solid oxide fuel cell of the present invention includes the unit cell for a solid oxide fuel cell according to the present invention.Type: GrantFiled: March 29, 2012Date of Patent: January 24, 2023Assignee: Nippon Shokubai Co., Ltd.Inventor: Kazuo Hata
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Patent number: 11539078Abstract: An electrolytic solution comprising N-(fluorosulfonyl)-N-(fluoroalkylsulfonyl)imide or di(fluorosulfonyl)imide, from which a residual solvent that affects the properties of the electrolyte solution material is reduced, is provided. A method for producing an electrolyte solution material containing fluorosulfonyl imide salt represented by the following general formula (1) and an electrolyte solution preparation solvent comprises decompressing and/or heating a solution containing the fluorosulfonyl imide salt and the electrolyte solution preparation solvent to volatilize a production solvent for the fluorosulfonyl imide salt. In general formula (1), R1 represents a fluorine atom or a fluorinated alkyl group having 1 to 6 carbon atoms, R2 represents an alkali metal ion.Type: GrantFiled: October 19, 2020Date of Patent: December 27, 2022Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Yasunori Okumura, Shimpei Sato, Masayuki Okajima, Takayuki Kobatake, Hiromoto Katsuyama