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    • 4. 发明申请
    • UREA GREASE COMPOSITION
    • 尿素油脂组合物
    • WO2008034892A2
    • 2008-03-27
    • PCT/EP2007060023
    • 2007-09-21
    • SHELL INT RESEARCHTANAKA KEIJISHINODA NORIAKIKATOU TETSUYA
    • TANAKA KEIJISHINODA NORIAKIKATOU TETSUYA
    • C10M115/08C10M169/06
    • C10M115/08C10M169/06C10M2203/1006C10M2205/0206C10M2207/0406C10M2215/064C10M2215/1026C10N2230/08C10N2230/76C10N2250/10C10N2220/022
    • The present invention aims to offer a urea grease composition which excels in noise performance, has long life at high temperatures and, further, also provides the basic performance of greases such as shear stability and heat resistance, as well as appropriate oil separation properties. The present invention provides a urea grease composition comprising: a diurea compound as shown by the General Formula (A) below: R 11 NHCONHR 12 NHCONHR 13 .... (A), (where R 11 and R 13 are groups selected from the group consisting of hydrocarbon groups having from 6 to 20 carbons, at least one of R 11 and R 13 is a dodecyl group and R 12 is a diphenylme thane group); and a diurea compound as shown by the General Formula (B) below: R 21 NHCONHR 22 NHCONHR 23 .... (B), (where R 21 and R 23 are groups selected from the group consisting of hydrocarbon groups having from 6 to 20 carbons, at least one of R 21 and R 23 is an oleyl group, and R 22 is a diphenylmethane group).
    • 本发明的目的在于提供一种噪声性能优异,在高温下具有长寿命的尿素润滑脂组合物,并且还提供了剪切稳定性和耐热性等润滑脂的基本性能,以及适当的油分离性能。 本发明提供一种尿素润滑脂组合物,其包含:如以下通式(A)所示的二脲化合物:R 11 NHCONHR 12 NHCONHR 13 > ...(A),(其中R 11和R 13是选自具有6至20个碳的烃基,至少一个 R 11和R 13是十二烷基,R 12是二苯基甲基); 和如下通式(B)所示的二脲化合物:R 21 NHCONHR 22 NHCONHR 23(B), (其中R 21和R 23是选自具有6至20个碳的烃基,R 21 21或以上的至少一个的基团 >和R 23是油基,R 22是二苯基甲烷基团)。