Lubricating oil compositions

Details Lubricating oil compositions Lubricating oil compositions

1975-05-12

1976-06-22

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

252 334, 252 407, 252 427, 252 52A, C10M 140, C10M 334, C10M 154, C10M 348

Patent

active

039650170

ABSTRACT:
A lubricating oil composition comprising a lubricating oil base and (A) an overbased detergent additive (e.g. an organic phenate) is foam stabilised by adding thereto, (B) 0.1 to 15 wt.% based on the weight of (A) of a monocarboxylic acid, anhydride or salt thereof, or a dicarboxylic acid, anhydride or salt thereof, said acid, anhydride (e.g. a polyisobutenyl succinic anhydride) or salt having at least 30 carbon atoms per molecule or the reaction product of a phosphorus sulphide with a hydrocarbon and (C) a dihydric alcohol having 2,3, or 4 carbon atoms per molecule (e.g. ethylene glycol), or a di- or tri- (C.sub.2 -C.sub.4) glycol or an ether alcohol having 2 to 10 carbon atoms per molecule.

REFERENCES:
patent: 3082168 (1963-03-01), Rue et al.
patent: 3714042 (1973-01-01), Greenough
patent: 3853774 (1974-12-01), Crocker

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