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Title:
LUBRICATING OIL COMPOSITIONS CONTAINING TRINUCLEAR TUNGSTEN COMPOUNDS
Document Type and Number:
WIPO Patent Application WO1999066011
Kind Code:
A3
Abstract:
A lubricating oil composition is provided comprising a major amount of an oil of lubricating viscosity and a minor amount of, as an additive, at least one compound comprising a trinuclear tungsten core and bonded thereto a ligand or ligands capable of rendering the compound oil-soluble or oil-dispersible.

Inventors:
BROWN ALISDAIR JAMES
BELL IAN ALEXANDER WESTON
CLEVERLEY JOHN A
STIEFEL EDWARD IRA
GOMES JOSE MANUEL GASPAR
MCCONNACHIE JONATHAN M
Application Number:
PCT/EP1999/004151
Publication Date:
September 26, 2002
Filing Date:
June 15, 1999
Export Citation:
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Assignee:
INFINEUM USA LP (US)
INFINEUM UK LTD (GB)
International Classes:
C10M169/04; C07F11/00; C10M101/02; C10M135/18; C10M159/18; C10N10/12; C10N40/25; C10N70/00; (IPC1-7): C10M159/18; C07F11/00
Foreign References:
EP0534357A11993-03-31
EP0286140A11988-10-12
Other References:
CHEMICAL ABSTRACTS, vol. 124, no. 16, 15 April 1996, Columbus, Ohio, US; abstract no. 218401g, WU, XIN-TAO ET AL: "Syntheses, structures and reactivity of incomplete cubane-like compound ((W3S4)(S2P(OEt)2)4(H2O)) and its derivatives" page 1237; XP002118549
CHEMICAL ABSTRACTS, vol. 122, no. 12, 20 March 1995, Columbus, Ohio, US; abstract no. 150114s, FEDIN, V P ET AL: "Demonstration of the substitution of selenium for sulfur in selenium cluster complexes of niobium and tungsten and characteristics of mixed sulfur-selenium complexes by the FAB mass spectrometry method" page 1266; XP002118548
CHEMICAL ABSTRACTS, vol. 118, no. 14, 5 April 1993, Columbus, Ohio, US; abstract no. 138435g, SHIBAHARA TAKASHI: "Synthesis of sulfur-bridged molybdenum and tungsten coordination compounds" page 949; XP002118550
K HEGETSCHWEILER ET AL: "Identification and characterization of trinuclear Molybdenum -Sulfur Clusters by fast Atom Bombardement (FAB) Mass Spectrometry", INORGANIC CHEMISTRY, vol. 30, no. 4, 20 February 1991 (1991-02-20), pages 873 - 876, XP002102746, ISSN: 0020-1669
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