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US 3,944,491 AGranted
Lubricants
AssigneePhillips Petroleum Company
InventorBernard A. Baldwin
Life of this patent
Estimating the term…
Abstract
The addition of a small amount of an alkylbenzyl mercaptan to lubricating oils, greases, automatic transmission oils, cutting oils, hydraulic fluids, and the like improves the anti-wear properties of the resulting compositions.
Claims7
An improved lubricating composition comprising a mineral lubricating oil having incorporated therein a small quantity sufficient to improve the anti-wear properties of the resulting lubricating composition of an alkylbenzyl mercaptan of the formula ##SPC2##
- wherein each R is hydrogen or an alkyl group, wherein at least one alkyl group is present in the molecule, and wherein there is a total of from 6 to about 25 carbon atoms in all of the combined R groups.
Dependencies are inferred from the claim text.