ANTIOXIDANT ADDITIVE COMPOSITION FOR LUBRICATING OILS

Title:

ANTIOXIDANT ADDITIVE COMPOSITION FOR LUBRICATING OILS

Document Type and Number:

WIPO Patent Application WO2001060959

Kind Code:

A8

Abstract:

This invention relates to a lubricating oil composition comprising a base stock and an antioxidant comprising an oil soluble trinuclear organomolybdenum compound of the generic formula (I): Mo3Sx-(Q) wherein x is from 4 to 10 and Q is a core group, which may be a ligand, and at least one other compound selected from a phenolic and an aminic compound wherein the basestock has a kinematic viscosity at 100 DEG C (KV100) from about 2 cSt to 20 eSt (2 x 10<-6> to 20 x 10<-6> m<2>/sec) and a saturates content of at least 85 %. The composition has a high oxidation stability, reduced deposit formation and is capable of giving rise to a good fuel economy improvement.

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Inventors:

GAO JASON (US)
MAY CHRISTOPHER JOHN (CA)
TORKELSON JEFFREY ROBERT (US)
WOOLLEY PAUL S (GB)

Application Number:

PCT/US2001/009730

Publication Date:

December 06, 2001

Filing Date:

February 08, 2001

Export Citation:

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Assignee:

EXXONMOBIL RES & ENG CO (US)
GAO JASON (US)
MAY CHRISTOPHER JOHN (CA)
TORKELSON JEFFREY ROBERT (US)
WOOLLEY PAUL S (GB)

International Classes:

C10M101/02; C10M129/10; C10M133/12; C10M135/18; C10M159/18; C10M163/00; C10M169/04; C10N10/12; C10N20/02; C10N30/10; C10N40/25; (IPC1-7): C10M169/04; C10M159/18

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