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    METHOD FOR PRODUCING SILICA SOL
    23.
    发明申请
    METHOD FOR PRODUCING SILICA SOL 审中-公开

    公开(公告)号：US20190010059A1

    公开(公告)日：2019-01-10

    申请号：US15748771

    申请日：2016-07-25

    Applicant: FUJIMI INCORPORATED

    Inventor： Keiji ASHITAKA ,  Masaaki ITO ,  Jun SHINODA

    IPC: C01B33/145 ,  B01J13/00 ,  C08L83/04

    Abstract: [Problem] Provided is a method for producing a silica sol capable of providing consistent production of the silica sol having a uniform particle size of silica particles in any particle size of the silica particles.[Solution] A method for producing a silica sol is a method including a step of mixing liquid (A) containing an alkaline catalyst, water, and a first organic solvent with liquid (B) containing an alkoxysilane or its condensate and a second organic solvent, and liquid (C1) having a pH of 5.0 or higher and lower than 8.0 and containing water or liquid (C2) containing water and being free of an alkaline catalyst to make a reaction liquid.

    METHOD FOR PRODUCING SILICA SOL
    26.
    发明公开
    METHOD FOR PRODUCING SILICA SOL 审中-公开

    公开(公告)号：US20240116763A1

    公开(公告)日：2024-04-11

    申请号：US18543060

    申请日：2023-12-18

    Applicant: FUJIMI INCORPORATED

    Inventor： Keiji ASHITAKA

    IPC: C01B33/145

    CPC classification number: C01B33/145

    Abstract: Provided is a method for producing a silica sol. A gel-like material cannot be generated and highly associated silica particles can be obtained. A method for producing a silica sol comprises a step of making a reaction liquid by mixing liquid (A) comprising an alkaline catalyst, water, a first organic solvent and silica particles for association with liquid (B) comprising at least one of tetramethoxysilane and a condensate thereof and a second organic solvent, wherein during the mixing, an addition rate of the liquid (B) is 8.5×10−4 to 5.6×10−3 (mol of silicon atoms in liquid (B)/mol of water in liquid (A)) per minute.

    TITANIUM PHOSPHATE POWDER AND PRODUCTION METHOD THEREOF
    27.
    发明公开
    TITANIUM PHOSPHATE POWDER AND PRODUCTION METHOD THEREOF 审中-公开

    公开(公告)号：US20240002232A1

    公开(公告)日：2024-01-04

    申请号：US18213459

    申请日：2023-06-23

    Applicant: FUJIMI INCORPORATED

    Inventor： Ryo NOMURA ,  Keiji ASHITAKA ,  Naoya MIWA

    IPC: C01B25/37

    CPC classification number: C01B25/372 ,  C01P2004/03 ,  C01P2002/72 ,  C01P2004/24

    Abstract: A titanium phosphate powder containing plate-like particles with a reduced content ratio of byproducts other than the plate-like particles, and exhibiting crystallinity of titanium phosphate represented by a chemical formula Ti(HPO4)2·nH2O (0≤n≤1) is provided in the present disclosure. The present disclosure relates to a method for producing a titanium phosphate powder exhibiting crystallinity of titanium phosphate represented by a chemical formula Ti(HPO4)2·nH2O (0≤n≤1), and containing plate-like particles, the method comprising putting an acidic raw material aqueous solution containing phosphorus and titanium in a sealed vessel, and storing the sealed vessel containing the raw material aqueous solution for a period of 2 hours or more, with the ambient temperature of the sealed vessel maintained under a constant temperature condition within a range of 40° C. or more and less than 100° C., wherein during the storage, the raw material aqueous solution is not stirred, or during the storage, the raw material aqueous solution is stirred, and in the case where the raw material aqueous solution is stirred during the storage, a swirl flow rate in stirring the raw material aqueous solution is within a range of more than 0 m/s and 0.30 m/s or less.

    TITANIUM PHOSPHATE POWDER, PRODUCTION METHOD THEREFOR, AND WHITE PIGMENT FOR COSMETICS
    29.
    发明申请
    TITANIUM PHOSPHATE POWDER, PRODUCTION METHOD THEREFOR, AND WHITE PIGMENT FOR COSMETICS 有权

    公开(公告)号：US20220144639A1

    公开(公告)日：2022-05-12

    申请号：US17585134

    申请日：2022-01-26

    Applicant: FUJIMI INCORPORATED

    Inventor： Mayumi IWAKUNI ,  Keiji ASHITAKA ,  Naoya MIWA

    IPC: C01B25/37 ,  A61K8/29

    Abstract: The titanium phosphate powder of the present invention includes plate-shaped crystalline particles of titanium phosphate, an average thickness of the plate-shaped crystalline particles is 0.01 μm or more and less than 0.10 μm, and an aspect ratio, which is a value obtained by dividing an average primary particle diameter of the plate-shaped crystalline particles by the average thickness, is 5 or more. In the method for producing a titanium phosphate powder of the present invention, a raw material containing titanium and phosphorus is caused to react by a hydrothermal synthesis method, and when the titanium phosphate powder including plate-shaped crystalline particles of titanium phosphate is produced, a mixture of titanium sulfate and phosphoric acid is used as the raw material.

    COATED PARTICLE, DISPERSION SOLUTION AND MOLDED BODY CONTAINING SAME, AND SINTERED BODY FORMED USING SAME
    30.
    发明申请
    COATED PARTICLE, DISPERSION SOLUTION AND MOLDED BODY CONTAINING SAME, AND SINTERED BODY FORMED USING SAME 有权

    公开(公告)号：US20220055951A1

    公开(公告)日：2022-02-24

    申请号：US17415267

    申请日：2019-12-05

    Applicant: FUJIMI INCORPORATED

    Inventor： Souma Taguchi ,  Keigo KAMOSHIDA ,  Tomoaki NAKAMURA ,  Naoya MIWA ,  Keiji ASHITAKA

    IPC: C04B35/565 ,  C04B35/628

    Abstract: The present invention provides means capable of satisfactorily exhibit the properties inherent in the inorganic particle and the constituent material of the coating layer, such as obtaining high dispersibility and high mechanical properties in the coated particle that contains the inorganic particle having at least the inorganic substance capable of forming an inorganic oxide on a surface, and the coating layer with which the inorganic particle is coated. The present invention relates to a coated particle that contains an inorganic particle having at least an inorganic substance capable of forming an inorganic oxide on a surface, and a coating layer with which the inorganic particle is coated, in which the amount of the inorganic oxide per unit surface area of the inorganic particle does not exceed 0.150 mg/m2.

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