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    • 7. 发明公开
    • Urea-urethane grease composition
    • Harnstoff /氨基甲酸乙酯 - 费特。
    • EP0274756A2
    • 1988-07-20
    • EP87119400.7
    • 1987-12-30
    • NIPPON OIL CO., LTD.
    • Kinoshita, HirotugoSekiya, MakotoMishima, Masaru
    • C10M115/08
    • C10M115/08C10M2215/006C10M2215/026C10M2215/0813C10M2215/10C10M2215/1013C10M2215/102C10M2215/1026C10M2215/121C10M2215/2206C10M2215/2275
    • 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.
    • 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%。