C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
253/53
C10M 139/00 (2006.01) C10M 115/08 (2006.01) C10M 169/06 (2006.01) F16D 3/00 (2006.01)
Patent
CA 1332936
A grease composition for use in a slidable type constant velocity universal joint comprises a lubricant base oil, (A) 2 to 25 wt.% of a thickener containing a mixture of (i) 25 to 93 mol% of a diurea compound represented by the formula (i) of R2NHCONHR1NHCONHR3 (ii) 4 to 30 mol% of a urea-urethane compound represented by the formula (ii) of R5NHCONHR4NHCOOR6 and (iii) 3 to 45 mol% of a diurethane compound represented by the formula (iii) of R8OCONHR7NHCOOR9 wherein R1, R4 and R7 stand for a divalent aromatic hydrocarbon group, R2, R3 and R5 stand for a cyclohexyl group or a cyclohexyl derivative group, and R6, R8 and R9 stand for an alkyl group or an alkenyl group; (B) 0.1 to 10 wt.% of an alkali metal borate hydrate; (C) 0.1 to 10 wt.% of a molybdenum compound selected from the group consisting of molybdenum dithiophosphate, molybdenum dithiocarbamate, molybdenum disulfide and mixtures thereof; and (D) 0.1 to 10 wt.% of a sulfur-phosphorus base extreme pressure additive selected from the group consisting of sulfides of fats and oils, polysulfides, phosphates, phosphites, thiophosphates, dithiozinc phosphates and mixtures thereof.
604947
Kinoshita Hirotsugu
Mishima Masaru
Nagashima Takashi
Saga Masayoshi
Sasaki Akira
Honda Giken Kogyo Kabushiki Kaisha (also Trading As Honda Motor Ltd .)
Marks & Clerk
Nippon Mitsubishi Oil Corporation
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