High temperature lubricating grease containing urea compounds

Details High temperature lubricating grease containing urea compounds High temperature lubricating grease containing urea compounds

1995-08-15

1997-09-23

Medley, Margaret

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Graphite, coal, or elemental carbon

508127, 508130, C10M12302, C10M16906

Patent

active

056704615

ABSTRACT:
Disclosed is a lubricating grease suitable for high temperature use, consisting essentially of 60 to 90% by weight of a base oil mixture comprising at least one mineral oil and at least one synthetic oil, 5 to 17% by weight of at least one urea compound as a thickener, wherein the at least one urea compound is a reaction product of at least one fatty amine and at least one isocyanate or at least one diisocyanate, 2 to 20% by weight of calcium complex grease, 1 to 4% by weight of molybdenum disulphide, 0.2 to 1% by weight of graphite powder, 0.2 to 1% by weight of polytetrafluoroethylene powder, 0.2 to 1% by weight of solid particles of at least one organo-molybdenum compound selected from a molybdenum dithiocarbamate and a molybdenum dithiophosphate, up to 2% by weight of a metal deactivator and up to 2% by weight of a corrosion inhibitor.

REFERENCES:
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patent: 4466909 (1984-08-01), Stayner
patent: 4759859 (1988-07-01), Waynick
patent: 4902435 (1990-02-01), Waynick
patent: 4986923 (1991-01-01), Waynick
patent: 5084193 (1992-01-01), Waynick
patent: 5160645 (1992-11-01), Okaniwa et al.

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