Urea-urethane grease composition
    43.
    发明公开
    Urea-urethane grease composition 失效
    Harnstoff /氨基甲酸乙酯 - 费特。

    公开(公告)号:EP0274756A2

    公开(公告)日:1988-07-20

    申请号:EP87119400.7

    申请日:1987-12-30

    Abstract: A urea-urethane grease composition contains, as essential ingredients, a thickener and a lubricant base oil. The thickener contains a urea-urethane mixture having a composition including 20 to 99, mol.% of a diurea comoound reoresented bv the aeneral formula (I) of
    4 to 30 mol.% of a urea-urethane compound represented by the general formula
    and 1 to 50 mol.% of a diurethane compound represented by the general formula
    wherein R 1 represents a difunctional aromatic hydrocarbon residue having 6 to 15 carbon atoms, R 2 a cyclohexyl group or a group derived from cyclohexyl and having 7 to 12 carbon atoms and R 3 an alkyl group or an alkenyl group having 8 to 20 carbon atoms. The ratio of the numbers of amino groups R 2 -NH-to those of alkoxy groups R 3 -O-in the mixture being 95 / 5 to 40/60. The thickener is contained in an amount of 2 to 25 wt.% based on the total weight of the grease composition.

    Abstract translation: 尿素 - 氨基甲酸酯润滑脂组合物含有增稠剂和润滑剂基础油。 增稠剂含有尿素 - 氨基甲酸酯混合物,其组成包含20至99摩尔%的由通式(I)表示的R2-NH-NH-NH-NH-NH-R2所示的二脲化合物4至30摩尔。 由R2-NH-NH-R1-NH--O-R3的通式(II)表示的尿素 - 氨基甲酸酯化合物和1〜50摩尔%的通式(III)表示的二氨基甲酸酯化合物的% R3-O-NH-R1-NH-O-R3,其中R1表示具有6至15个碳原子的双官能芳烃残基,R2表示环己基或衍生自环己基且具有7至12个碳原子的基团,R3表示 烷基或碳原子数为8〜20的烯基。 氨基R2-NH-与烷氧基R3-O-的比例为95/5至40/60。 基于润滑脂组合物的总重量,增稠剂的含量为2至25重量%。

    Schmierfettzusammensetzung, ihre Herstellung und Verwendung
    45.
    发明公开
    Schmierfettzusammensetzung, ihre Herstellung und Verwendung 失效
    润滑脂组合物,其制备和用途。

    公开(公告)号:EP0117454A1

    公开(公告)日:1984-09-05

    申请号:EP84101018.4

    申请日:1984-02-01

    Abstract: Eine Schmierfettzusammensetzung auf Basis Mineral-oder Syntheseöl als Grundöl enthält eine Polyharnstoffverbindung, welche das Reaktionsprodukt eines Isocyanats mit mindestens 3 Isocyanatgruppen im Molekül mit einem langkettigen alipathischen Monoamin darstellt, als Verdickungsmittel sowie übliche Additive.

    Abstract translation: 基于矿物油或合成油作为含有聚脲化合物的基油的润滑脂组合物中,具有软分子中具有至少3个异氰酸酯基的异氰酸酯的反应产物是具有长链单胺alipathischen,增稠剂,以及常规的添加剂。

    GREASE COMPOSITION
    48.
    发明公开
    GREASE COMPOSITION 审中-公开

    公开(公告)号:EP4317382A1

    公开(公告)日:2024-02-07

    申请号:EP22781326.8

    申请日:2022-03-31

    Abstract: Provided is a grease composition containing a base oil (A), a urea-based thickener (B), and melamine cyanurate (C), wherein particles containing the urea-based thickener (B) in the grease composition satisfy the following requirement (I), and the grease composition has excellent wear resistance. Requirement (I): The particles have an area-based arithmetic average particle diameter of 2.0 µm or less, as measured by a laser diffraction/scattering method. It is preferred that the particles containing the urea-based thickener (B) in the grease composition further satisfy the following requirement (II). Requirement (II): The particles have a specific surface area of 0.5 × 10 5 cm 2 /cm 3 or more, as measured by a laser diffraction/scattering method.

    GREASE COMPOSITION
    49.
    发明公开
    GREASE COMPOSITION 审中-公开

    公开(公告)号:EP3936591A1

    公开(公告)日:2022-01-12

    申请号:EP20765715.6

    申请日:2020-02-27

    Abstract: The present invention relates to provision of an extreme pressure agent-containing grease composition using, as a thickener, a urea-based thickener, the grease composition being excellent in both torque transmitting efficiency and leakage prevention performance and also excellent in wear resistance and load resistance. The grease composition contains a base oil (A), a urea-based thickener (B), and an extreme pressure agent (C), wherein
    particles containing the urea-based thickener (B) in the grease composition satisfies the following requirement (I):
    Requirement (I): an arithmetic average particle diameter of the particles on an area basis as measured by the laser diffraction/scattering method is 2.0 pm or less, and

    the extreme pressure agent (C) is at least one selected from an organic metal-based extreme pressure agent, a sulfur-based extreme pressure agent, a phosphorus-based extreme pressure agent, and a sulfur-phosphorus-based extreme pressure agent.

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