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    GREASE COMPOSITION
    1.
    发明公开
    GREASE COMPOSITION 审中-公开

    公开(公告)号：EP4509586A1

    公开(公告)日：2025-02-19

    申请号：EP23788329.3

    申请日：2023-04-11

    Applicant: Kyodo Yushi Co., Ltd.

    Inventor： KONNO, Tadaaki ,  HASHIMOTO, Masaki

    IPC: C10N20/00 ,  C10N30/00 ,  C10N30/06 ,  C10N40/02 ,  C10N40/04 ,  C10N50/10 ,  C10M115/08

    Abstract: A grease composition comprising
    (a) a thickener containing a mixture of the following formulas (I), (II), and (III):

            (I):     R1-NHCONH-R2-NHCONH-R1,

            (II):     R3-NHCONH-R2-NHCONH-R3,

    and

            (III):     R1-NHCONH-R2-NHCONH-R3,

    where R1 is a cyclohexyl group, R2 is a C6-15 divalent aromatic hydrocarbon group, R3 is a C8-20 linear or branched alkyl group or alkenyl group, and {R1/(R1+R3)}×100 is 80 to 0 mol%, and
    (b) a base oil,
    wherein a 60-stroke worked penetration measured by a method specified in JIS K 2220.7 is 300 to 350, and
    a penetration in a roll stability test measured after applying shearing at 120°C for 24 hours using a tester conforming to ASTM D 1831 is 440 or less.

    LUBRICANT COMPOSITION AND METHOD FOR PRODUCING SAME
    2.
    发明公开
    LUBRICANT COMPOSITION AND METHOD FOR PRODUCING SAME 审中-公开

    公开(公告)号：EP4502117A1

    公开(公告)日：2025-02-05

    申请号：EP23780350.7

    申请日：2023-03-27

    Applicant: Idemitsu Kosan Co.,Ltd.

    Inventor： AGANO, Shizuka

    IPC: C10M169/02 ,  C10N30/00 ,  C10N40/02 ,  C10N50/10 ,  C10M115/08

    Abstract: Provided a lubricant composition containing a lubricant base oil (A) and particles (B-1) containing a thickener (B), in which the particles (B-1) satisfy requirement (α): an arithmetic average particle diameter on a volume basis when the particles (B-1) are measured in an environment of 25°C by a laser diffraction/scattering method is 10.0 µm or less, and the lubricant composition satisfies requirement (β): a ratio [(x1)/(x2)] of a shear viscosity (x1) at 40°C at a shear rate of 5 sec -1 and a shear viscosity (x2) at 40°C at a shear rate of 10,000 sec -1 is 2.0 or more and 100 or less.

    RAW MATERIAL FOR GREASE, GREASE RAW MATERIAL PRODUCTION METHOD, GREASE PRODUCTION METHOD, AND GREASE
    3.
    发明公开
    RAW MATERIAL FOR GREASE, GREASE RAW MATERIAL PRODUCTION METHOD, GREASE PRODUCTION METHOD, AND GREASE 审中-公开

    公开(公告)号：EP4491700A2

    公开(公告)日：2025-01-15

    申请号：EP24215831.9

    申请日：2021-07-14

    Applicant: JTEKT CORPORATION

    Inventor： MATSUYAMA, Junya ,  NIIYA, Kanako ,  YAMAMOTO, Takeshi

    IPC: C10M115/08

    Abstract: Provided is a method for producing a raw material of grease, including: preparing a first thickener raw material; a second thickener raw material; a first lubricating oil; a second lubricating oil; a first solvent that has a boiling point lower than those of the first lubricating oil and the second lubricating oil, dissolves the first lubricating oil, and does not dissolve a produced thickener; and a second solvent that has a boiling point lower than those of the first lubricating oil and the second lubricating oil, dissolves the second lubricating oil, and does not dissolve the produced thickener; dissolving the first lubricating oil in the first solvent, and dissolving or dispersing the first thickener raw material in the first solvent to obtain a first mixed solution; dissolving the second lubricating oil in the second solvent, and dissolving or dispersing the second thickener raw material in the second solvent to obtain a second mixed solution; and mixing the first mixed solution and the second mixed solution, and reacting the first thickener raw material and the second thickener raw material to produce a thickener.

    RAW MATERIAL FOR GREASE, GREASE RAW MATERIAL PRODUCTION METHOD, GREASE PRODUCTION METHOD, AND GREASE
    5.
    发明公开
    RAW MATERIAL FOR GREASE, GREASE RAW MATERIAL PRODUCTION METHOD, GREASE PRODUCTION METHOD, AND GREASE 审中-公开

    公开(公告)号：EP4186965A1

    公开(公告)日：2023-05-31

    申请号：EP21847065.6

    申请日：2021-07-14

    Applicant: JTEKT Corporation

    Inventor： MATSUYAMA, Junya ,  NIIYA, Kanako ,  YAMAMOTO, Takeshi

    IPC: C10M169/02 ,  C10M177/00 ,  C10N20/00 ,  C10N30/00 ,  C10N30/06 ,  C10N40/02 ,  C10N40/04 ,  C10N50/10 ,  C10M105/36 ,  C10M107/02 ,  C10M115/08

    Abstract: Provided is a method for producing a raw material of grease, including: preparing a first thickener raw material; a second thickener raw material; a first lubricating oil; a second lubricating oil; a first solvent that has a boiling point lower than those of the first lubricating oil and the second lubricating oil, dissolves the first lubricating oil, and does not dissolve a produced thickener; and a second solvent that has a boiling point lower than those of the first lubricating oil and the second lubricating oil, dissolves the second lubricating oil, and does not dissolve the produced thickener; dissolving the first lubricating oil in the first solvent, and dissolving or dispersing the first thickener raw material in the first solvent to obtain a first mixed solution; dissolving the second lubricating oil in the second solvent, and dissolving or dispersing the second thickener raw material in the second solvent to obtain a second mixed solution; and mixing the first mixed solution and the second mixed solution, and reacting the first thickener raw material and the second thickener raw material to produce a thickener.

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