LUBRICATING OIL COMPOSITION

WIPO Patent Application WO/1996/023856

A1

A lubricating oil composition for an internal combustion engine, which has excellent frictional properties and abrasion resistance and comprises a lube base oil and (a) 0.075 to 2 % by weight of at least one compound selected from the group consisting of molybdenum dithiocarbamate and molybdenum dithiophosphate, (b) 0.05 to 1.5 % by weight of a fatty acid ester and/or 0.05 to 0.5 % by weight of an organic amide compound, and (c) 0.1 to 3 % by weight of at least one organotin compound selected from the group consisting of zinc dithiophosphate and zinc dithiocarbamate: and another lubricating oil composition for an internal combustion engine, which has more improved frictional properties and abrasion resistance and comprises a lube base oil and the above components (a), (b), and (c) and additional additives, i.e., (d) 0.1 to 10 % by weight of at least one compound selected from the group consisting of calcium sulfonate, magnesium sulfonate, calcium phenate, magnesium phenate, calcium salicylate, and magnesium salicylate, and (e) 0.5 to 15 % by weight of at least one compound selected from the group consisting of benzylamine, boron derivatives of benzylamine, polyalkenylsuccinimide, and boron derivatives of polyalkenylsuccinimide. This composition is suitable particularly as a lubricating oil composition for an internal combustion engine having a low fuel consumption by virtue of the low frictional properties.

TOMIZAWA HIROTAKA (JP)
TSUKADA TOSHIKAZU (JP)
YAMADA MICHIYA (JP)

PCT/JP1996/000201

August 08, 1996

February 01, 1996

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TONEN CORP (JP)
TOMIZAWA HIROTAKA (JP)
TSUKADA TOSHIKAZU (JP)
YAMADA MICHIYA (JP)

C10M169/04; C10M141/12; C10M163/00; C10N10/04; C10N10/12; C10N30/04; C10N30/06; (IPC1-7): C10M169/04

JPH05186787A	1993-07-27
JPH05279686A	1993-10-26

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