The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 1979
Filed:
Aug. 10, 1977
Applicant:
Inventor:
Warren Lowe, El Cerrito, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 466 ; 252 499 ;
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.