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:
Oct. 06, 2015
Filed:
Mar. 08, 2013
Kathleen Kim Cooper, South River, NJ (US);
Angela S. Galiano-roth, Mullica Hill, NJ (US);
David Alan Blain, Cherry Hill, NJ (US);
Eugenio Sanchez, Pitman, NJ (US);
Nilka Yajaira Leon, Woodbury, NJ (US);
James T. Carey, Medford, NJ (US);
Oleg Yurievich Melnichenko, Cherry Hill, NJ (US);
Kathleen Kim Cooper, South River, NJ (US);
Angela S. Galiano-Roth, Mullica Hill, NJ (US);
David Alan Blain, Cherry Hill, NJ (US);
Eugenio Sanchez, Pitman, NJ (US);
Nilka Yajaira Leon, Woodbury, NJ (US);
James T. Carey, Medford, NJ (US);
Oleg Yurievich Melnichenko, Cherry Hill, NJ (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
Disclosed are compositions of a major amount of alkylated aromatics compounds, in particular alkylated naphthalene and alkylated benzene, optionally combined with API Group II, Group III, Group IV and/or ethylene copolymers, showing improved thermo-oxidation performance when containing an additive combination including an alkylated or non-alkylated diarylamine and a sulfur-containing metal passivator. Particularly, the lubricating compositions include at least 55 wt % of a base oil selected from the group consisting of alkylated naphthalene, alkylated benzene and combinations thereof, and from 0 wt % to 45 wt % of another base oil component. The ratio of amine component to sulfur component in the additive combination is from 1:1 to 20:1. The compositions contain an amount of base oil other than alkylated naphthalene, alkylated benzene and API Group II, Group III, Group IV and/or ethylene copolymers of less than 10 wt % based on the total weight of the components comprising the lubricating composition.