Patent · US Expired

High temperature lubricating grease containing urea compounds

US5670461A · kind A · utility

10Cited by

8References

17Claims

0Family size

Assignee

GKN Automotive Limited · DE

Inventors

Hans Schreiber · Aichach, DE
Peter Seigert · Lohmar, DE
Herbert Konegen · Rösrath, DE
Wolfgang Hildebrandt · Lohmar, DE

Key dates

Filing date	Aug 15, 1995
Grant date	Sep 23, 1997
Priority date	—
Expiry date	Aug 15, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2010/12
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.