Lubricants with linear alkaryl overbased detergents
AssigneeEthyl Additives Corporation
InventorsTze Chi Jao, Ingrid Christiane Denys, Leonard Anthony Matthews, Nancy Anne Morton
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Abstract
Lubricants containing overbased detergents with linear, alkyl substituted, aromatic component have superior water shedding and engine performance properties.
Claims6
A lubricant oil composition for marine application or applications requiring alkalinity, demulsifying or water shedding properties comprising a lubricating oil and an effective amount for providing detergency properties of at least one overbased detergent which is an amorphous salt of a linear alkaryl acid wherein aryl is selected from the group consisting of benzene and naphthalene, wherein the detergent has a total base number of from about 25 to about 300 and wherein the detergent is sulfonated and contains a mixture of linear monoalkaryl groups and linear dialkaryl groups.
Dependencies are inferred from the claim text.