Lubricating compositions containing a di(chlorophenyl) ester of an aliphatic dicarboxylic acid
AssigneeShell Oil Company
InventorHendrik Schadenberg
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Abstract
Lubricating compositions are provided which comprise a major amount of oil of lubricating viscosity and an effective amount of dichlorophenyl esters of hydrocarbyl dicarboxylic acids. The lubricating compositions have improved load-bearing properties. Also provided are novel dichlorophenyl esters of malonic and lower alkyl substituted malonic acid.
Claims6
A lubricating composition comprising a lubricating base oil and an amount between 0.01 and 10%wt of a di(chlorophenyl)ester of an aliphatic dicarboxylic acid containing from 2 to 15 carbon atoms, which acid contains in addition to the two carboxylic acid groups only carbon and hydrogen groups.
A lubricating composition comprising a lubricating base oil and an amount between 0.01 and 10%wt of a di(chlorophenyl)ester of malonic or an alkyl malonic acid containing up to 15 carbon atoms.
A lubricating composition comprising a lubricating base oil and an amount between 0.01 and 10%wt of an ester of the general formula:
- ##STR4## wherein m and n are integers in the range from 1 to 5 and R.sub.1 and R.sub.2, which may be the same or different, are hydrogen or C.sub.1 to C.sub.6 alkyl groups.
Dependencies are inferred from the claim text.