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公开(公告)号：US09567217B2
公开(公告)日：2017-02-14
申请号：US14419071
申请日：2014-06-06
Applicant: STELLA CHEMIFA CORPORATION
Inventor： Sojiro Kon , Tetsuo Nishida
IPC: C01B25/455
CPC classification number: C01B25/455
Abstract: Provided is a method for producing a difluorophosphate, which can simply and easily produce a high-purity difluorophosphate in an industrially advantageous manner. The method includes steps of: reacting an aqueous hydrofluoric acid solution with an oxyhalide of phosphorous (except phosphoric trifluoride) to produce a crude difluorophosphoric acid; reacting the crude difluorophosphoric acid with a halide of an alkali metal, an alkaline earth metal, aluminum or an onium to produce a difluorophosphate in the crude difluorophosphoric acid; and heating and drying the crude difluorophosphoric acid containing the difluorophosphate to distill away the crude difluorophosphoric acid, or precipitating the difluorophosphate in the crude difluorophosphoric acid by crystallization, subsequently separating the difluorophosphate by solid-liquid separation, and further distilling away the crude difluorophosphoric acid contained in the difluorophosphate after solid-liquid separation.
Abstract translation: 本发明提供可以简单且容易地以工业上有利的方式制备高纯度二氟磷酸盐的二氟磷酸盐的制造方法。 该方法包括以下步骤：使氢氟酸水溶液与磷的卤氧化物（除了三氟化磷）反应以产生粗二氟磷酸; 使粗二氟磷酸与碱金属，碱土金属，铝或鎓的卤化物反应，在粗二氟磷酸中产生二氟磷酸盐; 并加热干燥含有二氟磷酸的粗二氟磷酸，蒸出粗二氟磷酸，或通过结晶沉淀粗二氟磷酸中的二氟磷酸盐，随后通过固 - 液分离分离二氟磷酸盐，进一步蒸馏除去含二氟磷酸的粗二氟磷酸 在固液分离后的二氟磷酸盐中。
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公开(公告)号：US20160075556A1
公开(公告)日：2016-03-17
申请号：US14418720
申请日：2014-06-06
Applicant: STELLA CHEMIFA CORPORATION
Inventor： Naoki Yahata , Tetsuo Nishida , Shuichi Minamigawa
IPC: C01B25/455
CPC classification number: C01B25/455 , H01G11/62 , H01M10/052 , H01M10/0568
Abstract: Provided is a method for producing a difluorophosphate, which can easily and industrially advantageously produce a high-purity difluorophosphate. The method includes a step of producing a difluorophosphate in the fluorophosphoric acid solution by reacting hydrofluoric acid anhydride containing no solvent with an oxoacid and/or the like of phosphorous to produce a fluorophosphoric acid solution; a step of adding a hexafluorophosphate to the fluorophosphoric acid solution in the absence of respective halides, carbonates, borates, phosphates, hydroxides, and oxides of an alkali metal and the like; and a step of heating and drying the fluorophosphoric acid solution containing the difluorophosphate to distill away a fluorophosphoric acid, or a step of depositing the difluorophosphate in the fluorophosphoric acid solution by crystallization, subsequently separating the difluorophosphate by solid-liquid separation, and distilling away a fluorophosphoric acid contained in the difluorophosphate after the solid-liquid separation.
Abstract translation: 本发明提供一种二氟磷酸盐的制造方法，其可以容易且工业上有利地生产高纯度二氟磷酸盐。 该方法包括通过使不含溶剂的氢氟酸与含磷酸和/或类似物质的磷反应来制备氟磷酸溶液中的二氟磷酸盐以产生氟磷酸溶液的步骤; 在不存在各种卤化物，碳酸盐，硼酸盐，磷酸盐，氢氧化物和碱金属的氧化物等的情况下，向氟磷酸溶液中加入六氟磷酸盐的步骤; 以及将含有二氟磷酸盐的氟磷酸溶液加热干燥以蒸馏出氟磷酸的步骤，或通过结晶在氟磷酸溶液中沉积二氟磷酸盐的步骤，随后通过固液分离分离二氟磷酸盐，并蒸馏除去 在固液分离后二氟磷酸盐中含有的氟磷酸。
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公开(公告)号：US20250033972A1
公开(公告)日：2025-01-30
申请号：US18911928
申请日：2024-10-10
Applicant: Tohoku University , Stella Chemifa Corporation
Inventor： Kazuyuki TOHJI , Yoshinori SATO , Koji YOKOYAMA , Kazutaka HIRANO , Yoshinori SATO
IPC: C01B32/174 , C01B32/159 , H01M4/96
Abstract: Disclosed is a carbon material, such as a carbon nanotube, into which a boron atom and/or a phosphorus atom is/are introduced while maintaining its characteristic structures and functions and a method for producing the same. The carbon material of the present invention is one in which a boron atom and/or a phosphorus atom is/are introduced into part of carbon atoms composing the carbon material, and can be produced by a method for producing a carbon material including the steps of: bringing a carbon material into contact with a fluorination treatment gas containing a fluorine-containing gas, thereby subjecting a surface of the carbon material to fluorination treatment; and bringing the carbon material after the fluorination treatment into contact with a boronization treatment gas containing a boron-containing gas, thereby subjecting to boronization treatment and/or into contact with a phosphorization treatment gas containing a phosphorus-containing gas, thereby subjecting to phosphorization treatment.
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公开(公告)号：US11965123B2
公开(公告)日：2024-04-23
申请号：US17442653
申请日：2020-03-19
Applicant: STELLA CHEMIFA CORPORATION
Inventor： Hiroaki Takatori , Shinya Kumazawa , Tetsuya Arakawa , Tetsuo Nishida
CPC classification number: C09K11/617 , C01B33/103 , C09K11/025 , C01P2002/54 , C01P2004/80
Abstract: A red phosphor that has optical characteristics and durability under high-temperature and high-humidity environments, and a method for producing the same. The red phosphor includes a Mn-activated complex fluoride represented by the following general formula (1) and bismuth:
A2MF6:Mn4+ (1)
wherein A represents at least one alkali metal element selected from the group consisting of lithium, sodium, potassium, rubidium and cesium, and M represents at least one tetravalent element selected from the group consisting of silicon, germanium, tin, titanium, zirconium and hafnium.-
公开(公告)号：US20240060024A1
公开(公告)日：2024-02-22
申请号：US18259250
申请日：2021-12-23
Applicant: SHINSHU UNIVERSITY , STELLA CHEMIFA CORPORATION
Inventor： Naoto SAITO , Takeshi UEMURA , Kazutoshi HISANO , Yoshinori SATO , Masashi YAMAMOTO , Keiichi NII , Tetsuo NISHIDA
Abstract: Provided are a cell culture member having excellent cell culture performance and its long-term stability, and a method for modifying the surface thereof. The cell culture member according to the present invention is a cell culture member having at least a holding region that holds an adherent cell and contains a polymer compound, wherein at least a part of the holding region is a surface-modified region in which a functional group containing a nitrogen atom is directly chemically bonded to a part of carbon atoms and/or silicon atoms constituting the polymer compound, and the present invention can provide a cell culture member that improves adhesiveness of the adherent cell to the surface-modified region, suppresses deterioration over time of adhesiveness, and is excellent in cell culture performance and its long-term stability.
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Patent Agency Ranking
公开(公告)号：US20240052299A1
公开(公告)日：2024-02-15
申请号：US18259237
申请日：2021-12-23
Applicant: SHINSHU UNIVERSITY , STELLA CHEMIFA CORPORATION
Inventor： Naoto SAITO , Takeshi UEMURA , Kazutoshi HISANO , Yoshinori SATO , Masashi YAMAMOTO , Keiichi NII , Tetsuo NISHIDA
CPC classification number: C12N5/0068 , C12M25/04 , C08J7/12 , C12N2509/00 , C12N2533/30 , C12N2537/00 , C08J2325/06
Abstract: Provided are a cell culture member having excellent cell culture performance and its long-term stability, and a method for modifying the surface thereof. The cell culture member according to the present invention is a cell culture member having at least a holding region that holds an adherent cell and contains a polymer compound, wherein at least a part of the holding region is a surface-modified region in which a fluorine atom is directly chemically bonded to a part of carbon atoms and/or silicon atoms constituting the polymer compound, and the present invention can provide a cell culture member that improves adhesiveness of the adherent cell to the surface-modified region, suppresses deterioration over time of adhesiveness, and is excellent in cell culture performance and its long-term stability.
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公开(公告)号：US20230407178A1
公开(公告)日：2023-12-21
申请号：US18251334
申请日：2021-10-27
Applicant: STELLA CHEMIFA CORPORATION
Inventor： Kazuya DATE , Nodoka NAKATA , Rui HASEBE , Keiichi NII
IPC: C09K13/08 , H01L21/311
CPC classification number: C09K13/08 , H01L21/31111
Abstract: A micromachining processing agent and a micromachining processing method capable of selectively micromachining a silicon oxide film when a laminated film including at least a silicon nitride film, a silicon oxide film, and a silicon alloy film is micromachined. The micromachining processing agent is used for micromachining of a laminated film including at least a silicon oxide film, a silicon nitride film, and a silicon alloy film. The micromachining processing agent contains: (a) 0.01 to 50 mass % of hydrogen fluoride; (b) 0.1 to 40 mass % of ammonium fluoride; (c) 0.001 to 10 mass % of a water-soluble polymer; (d) 0.001 to 1 mass % of an organic compound having a carboxyl group; and (e) water as an optional component, in which the water-soluble polymer is at least one selected from a group consisting of acrylic acid, ammonium acrylate, acrylamide, styrenesulfonic acid, ammonium styrenesulfonate, and styrenesulfonic acid ester.
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公开(公告)号：US20230038554A1
公开(公告)日：2023-02-09
申请号：US17788140
申请日：2020-11-11
Applicant: STELLA CHEMIFA CORPORATION
Inventor： Masanori URAYA , Hiroya YAMAMOTO , Rui HASEBE , Megumi TOMISAKI , Tetsuo NISHIDA
Abstract: Provided are a liquid dispersion of fluoride particles, which has low viscosity and excellent dispersibility, and is suitable for producing an optical film such as an antireflection film; a method for producing the same; and an optical film using the same. The liquid dispersion of fluoride particles according to the present invention is that in which particles of a fluoride represented by the chemical formula AxCFy (wherein A represents sodium or potassium, C represents silicon or boron, x is 1 or 2, and y is 4 or 6) are dispersed in an aprotic organic solvent having a relative permittivity of 5 to 40, and the optical film according to the present invention is produced by using the liquid dispersion of fluoride particles.
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公开(公告)号：US11180515B2
公开(公告)日：2021-11-23
申请号：US17010611
申请日：2020-09-02
Applicant: STELLA CHEMIFA CORPORATION
Inventor： Toshitaka Sakaguchi , Sojiro Kon , Yoshifumi Katsura , Masashi Yamamoto , Tetsuo Nishida
IPC: C07F9/11 , H01M10/054 , H01M10/0567 , C07F9/09 , H01M10/052 , H01G11/64 , H01M10/0568 , C07F9/12 , C07H15/252 , H01M4/587 , H01M10/0525 , H01M10/0569
Abstract: A non-aqueous electrolytic solution includes a phosphoric acid diester salt, which can suppress deterioration of charge-discharge characteristics of a power storage element, and can suppress the rise in internal resistance after storage at high temperature. The phosphoric acid diester salt is represented by the following chemical formula (1): in which Mn+ represents a hydrogen ion, an alkali metal ion, an alkali earth metal ion, an aluminum ion, a transition metal ion, or an onium ion, R1 and R2 are different from each other and represent a hydrocarbon group having 1 to 10 carbon atoms, or a hydrocarbon group having 1 to 10 carbon atoms and having at least one of a halogen atom, a heteroatom, and an unsaturated bond, and n represents a valence.
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公开(公告)号：US11155465B2
公开(公告)日：2021-10-26
申请号：US15563698
申请日：2016-04-22
Applicant: STELLA CHEMIFA CORPORATION
Inventor： Yoshinori Sato , Kazutaka Hirano , Yuki Kikui
IPC: C01B32/168 , B82Y30/00 , C01B32/05 , C01B32/156 , C01B32/18 , C01B32/194 , C01B32/21 , C01B32/28 , C01B32/354 , B82Y40/00
Abstract: A cross-linked structure of a carbon material is excellent in mechanical strength, such as tensile strength. The carbon materials such as carbon nanotube, graphite, fullerene, and carbon nanocoil, are cross-linked with each other. The carbon materials are cross-linked through a linking group derived from a nucleophilic compound having two or more nucleophilic groups in the molecule.
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