Molybdenum complexes of ashless polyol ester dispersants as friction-reducing antiwear additives for lubricating oils
Patent
·
OSTI ID:6796804
An oil-soluble molybdenum complex of an ashless polyol ester dispersant, preferably of oil-soluble reaction product of a molybdenum compound such as molybdic acid with about 1 to 2 molar equivalents of a polyol ester of a hydrocarbon substituted diacid material such as polybutenyl succinic anhydride or a thio-bis(Hydrocarbyl substituted diacid material), such as thio-bis(Polyalkyl lactone acid) and/or their precursors, the adducts of sulfur chloride and unsaturated diacid materials, E.G., 4,8-bispolyalkyl-4,8-dichloro-6-thiaundecane-1,2,10,11-tetracarboxylic acid bis-anhydride and their dehydrochlorinated analogs, is a useful additive to a lubricating oil since both the sludge dispersant and antifriction properties of said oil are enhanced.
- Assignee:
- Exxon Research And Engineering Co
- Patent Number(s):
- US 4239633
- OSTI ID:
- 6796804
- Country of Publication:
- United States
- Language:
- English
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