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    COATED FLAKY TITANIC ACID PARTICLES, PRODUCTION METHOD THEREFOR, AND USE THEREOF
    3.
    发明公开
    COATED FLAKY TITANIC ACID PARTICLES, PRODUCTION METHOD THEREFOR, AND USE THEREOF 审中-公开

    公开(公告)号：EP4269349A1

    公开(公告)日：2023-11-01

    申请号：EP21910744.8

    申请日：2021-12-21

    Applicant: Ishihara Sangyo Kaisha, Ltd.

    Inventor： KAMANAKA, Kei ,  HAMAMOTO, So

    IPC: C01G23/00 ,  C09C1/36 ,  C09C3/06 ,  C09C3/08 ,  C09D201/00 ,  C09D7/62

    Abstract: Provided are: coated flaky titanic acid particles, which can form a design coating film with a good silky texture and shadowed appearance when flaky titanic acid is applied to an organic solvent-based paint and, which can also sufficiently suppress discoloration (yellowing) of the coating film even in a relatively severe environment, such as prolonged exposure to ultraviolet light; and a production method therefor.
    The surface of the flaky titanic acid particles has an oxide and/or hydroxide of aluminum, and an anionic surfactant present thereon. Preferably, the anionic surfactant is a hydrocarbon-based anionic surfactant having 5 or more carbon atoms in the main chain or a fluorinated anionic surfactant having 4 or more carbon atoms. Said production method comprises: a step for maintaining an aqueous slurry, which contains flaky titanic acid particles and an aluminum source, at a temperature of 50-95°C inclusive and at a pH of 5-12 inclusive to treat the surface of the flaky titanic acid particles with an oxide and/or hydroxide of aluminum; and a subsequent step for mixing the obtained flaky titanic acid and an anionic surfactant in a solution.

    A METHOD FOR MANUFACTURING A CRYSTALLINE OXIDIC COMPOUND
    8.
    发明公开
    A METHOD FOR MANUFACTURING A CRYSTALLINE OXIDIC COMPOUND 审中-公开

    公开(公告)号：EP4186865A1

    公开(公告)日：2023-05-31

    申请号：EP21210780.9

    申请日：2021-11-26

    Applicant: Karlsruher Institut für Technologie

    Inventor： Mereacre, Valeriu ,  Binder, Joachim ,  Ehrenberg, Helmut

    IPC: C01G23/00 ,  C01G25/00 ,  C01G27/00 ,  C01G31/00 ,  C01G33/00 ,  C01G35/00

    Abstract: The present invention relates to a method for manufacturing a crystalline oxidic compound comprising an alkaline metal and a valve metal, to a crystalline oxidic compound as obtained by the method, and to its use as a ferroelectric material; as a coating material for electrode materials in batteries, specifically in solid-state batteries; or in digital printing, especially on a polymeric substrate.
    Herein, the method for manufacturing a crystalline oxidic compound comprising an alkaline metal and a valve metal comprises the following steps:
    a) mixing an alcoholate of an alkaline metal and an alcoholate of a valve metal in a composition of an oxygenated organic solvent and hydrogen peroxide at room temperature;
    b) adding an acid selected from at least one of nitric acid or hydrochloric acid at room temperature, whereby a solution is obtained;
    c) drying the solution at an elevated temperature of 50 °C to 150 °C, whereby a powder comprising the at least one crystalline oxidic compound comprising the alkaline metal and the valve metal is obtained.
    This manufacturing method operates at a low ambient working temperature, especially below 200 °C, and, thus, allows a direct manufacturing of crystalline oxidic compounds without interaction with a substrate and/or on a substrate which is not capable of tolerating higher temperatures during the manufacturing of crystalline oxidic compounds without deformation and/or deterioration. A further advantage of the low ambient working temperature is that a diffusion of elements from the at least one crystalline oxidic compound as coating material into the substrate can be avoided.

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