EP 2465916 A1 20120620 - GREASE COMPOSITION AND MACHINE COMPONENT
Title (en)
GREASE COMPOSITION AND MACHINE COMPONENT
Title (de)
SCHMIERFETTZUSAMMENSETZUNG UND MASCHINENKOMPONENTE
Title (fr)
COMPOSITION DE GRAISSE ET PIÈCE MÉCANIQUE
Publication
Application
Priority
- JP 2009185793 A 20090810
- JP 2010063521 W 20100810
Abstract (en)
The invention provides a grease composition containing a base oil, a thickener and an additive, characterized in that the base oil has a kinetic viscosity at 40°C of 50 to 200 mm 2 /s; the thickener contains a diurea compound represented by formula (I): R 1 -NHCONH-R 2 -NHCONH-R 3 (wherein R 2 is a divalent aromatic hydrocarbon group having 6 to 15 carbon atoms, and R 1 and R 3 , which may be the same or different, represent cyclohexyl group or a straight-chain or branched alkyl group having 8 to 22 carbon atoms); and the additive is at least one selected from the group consisting of a metal salt of naphthenic acid, a salt of a fatty acid having 6 to 10 carbon atoms and an aliphatic amine having 6 to 10 carbon atoms, and a metal salt of an organic sulfonic acid. The composition of the invention shows excellent anti-fretting properties under the conditions of ordinary temperature to low temperature (e.g., -50°C, preferably about -40°C).
IPC 8 full level
C10M 169/00 (2006.01); C10M 101/02 (2006.01); C10M 115/08 (2006.01); C10M 129/58 (2006.01); C10M 133/06 (2006.01); C10M 159/24 (2006.01); C10N 10/04 (2006.01); C10N 20/02 (2006.01); C10N 30/00 (2006.01); C10N 40/00 (2006.01); C10N 40/02 (2006.01); C10N 40/04 (2006.01); C10N 40/32 (2006.01); C10N 50/10 (2006.01)
CPC (source: EP KR US)
C10M 101/02 (2013.01 - KR); C10M 115/08 (2013.01 - KR); C10M 129/58 (2013.01 - KR); C10M 169/00 (2013.01 - KR); C10M 169/06 (2013.01 - EP US); C10M 2203/1006 (2013.01 - EP US); C10M 2205/0285 (2013.01 - EP US); C10M 2207/122 (2013.01 - EP US); C10M 2207/126 (2013.01 - EP US); C10M 2207/16 (2013.01 - EP US); C10M 2215/04 (2013.01 - EP US); C10M 2215/1026 (2013.01 - EP US); C10M 2219/046 (2013.01 - EP US); C10M 2223/043 (2013.01 - EP US); C10M 2223/045 (2013.01 - EP US); C10N 2010/04 (2013.01 - EP US); C10N 2020/02 (2013.01 - EP US); C10N 2030/02 (2013.01 - EP US); C10N 2030/06 (2013.01 - EP US); C10N 2040/02 (2013.01 - EP US); C10N 2040/04 (2013.01 - EP US); C10N 2040/32 (2013.01 - EP US); C10N 2050/10 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
EP 2465916 A1 20120620; EP 2465916 A4 20130306; CN 102471718 A 20120523; JP 2011037975 A 20110224; KR 20120042743 A 20120503; US 2012142566 A1 20120607; WO 2011019028 A1 20110217
DOCDB simple family (application)
EP 10808211 A 20100810; CN 201080034868 A 20100810; JP 2009185793 A 20090810; JP 2010063521 W 20100810; KR 20117028102 A 20100810; US 201013389711 A 20100810