Title: Antiwear additive and lubricating oil composition containing same

Abstract: An anti-wear additive for lubricating compositions comprising (A) 1 part by weight of a sulfurized acid prepared by sulfurizing an acid of the formula R-COOH wherein R is C.sub.10 -C.sub.40 alkenyl, said sulfurized acid having a minimum sulfur content of 3% by weight and (B) 1-100 parts by weight of a phosphate of the formula ##STR1## wherein each of R.sup.2, R.sup.3, and R.sup.4 is independently a C.sub.6 -C.sub.20 aromatic or C.sub.1 -C.sub.20 aliphatic hydrocarbon group.

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Inventors: Lowe, Warren (El Cerrito, CA, US)

Application Number: 823313
Filing Date: 1977-08-10
Publication_date: 1979-01-30
Assignee: Chevron Research Company (San Francisco, CA)
Primary Class(es): 508/331
Other Classes:
US Patent Ref:

2172285	Sep, 1939	Lincoln et al.	252/48.
2459718	Jan, 1949	Barnum et al.	252/48.
3398095	Aug, 1968	Judd	252/48.
3697427	Oct, 1972	Byford et al.	252/49.

Other Refs: 496688

Oct, 1953	CA

Primary Examiner: Gantz, Delbert E.
Assistant Examiner: Metz, Andrew
Attorney: Tonkin; C. J., Vaughan; L. L.