EP 2554644 A4 20131204 - GREASE COMPOSITION
Title (en)
GREASE COMPOSITION
Title (de)
SCHMIERFETTZUSAMMENSETZUNG
Title (fr)
COMPOSITION DE GRAISSE
Publication
Application
Priority
- JP 2010073663 A 20100326
- JP 2011057462 W 20110325
Abstract (en)
[origin: EP2554644A1] Provided are a grease composition which inhibits simultaneously a bearing wear and a fretting wear under a high load to make it possible to elongate a life of the bearing; a grease composition which can inhibit a fretting wear caused by a change in a load in a thrust direction in addition to an usual fretting wear caused by small vibration in an oscillating direction; and a grease composition which is excellent in low-temperature characteristics. The grease compositions contain a base oil and a thickener, wherein the base oil contains a poly-±-olefin (component A) which has a kinetic viscosity of 300 mm 2 /s or more at 40°C and which is produced by using a metallocene catalyst.
IPC 8 full level
C10M 107/02 (2006.01); C10M 117/00 (2006.01); C10M 169/00 (2006.01); C10N 20/00 (2006.01); C10N 20/02 (2006.01); C10N 30/00 (2006.01); C10N 30/06 (2006.01); C10N 40/02 (2006.01); C10N 50/10 (2006.01)
CPC (source: EP US)
C10M 169/02 (2013.01 - EP US); C10M 2205/0285 (2013.01 - EP US); C10M 2207/1236 (2013.01 - EP US); C10M 2207/1265 (2013.01 - EP US); C10M 2207/1285 (2013.01 - EP US); C10N 2010/02 (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 2050/10 (2013.01 - EP US)
Citation (search report)
- [X] EP 1972681 A1 20080924 - NSK LTD [JP]
- [X] EP 1607648 A2 20051221 - NTN TOYO BEARING CO LTD [JP]
- [X] US 5364544 A 19941115 - OTAKE SUGAKO [JP], et al
- [X] WO 9841599 A1 19980924 - EXXON RESEARCH ENGINEERING CO [US]
- [X] US 2007072777 A1 20070329 - OKAMURA SEIJI [JP], et al
- See references of WO 2011118814A1
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 RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2554644 A1 20130206; EP 2554644 A4 20131204; CN 102791841 A 20121121; JP 5706883 B2 20150422; JP WO2011118814 A1 20130704; US 2013012416 A1 20130110; WO 2011118814 A1 20110929
DOCDB simple family (application)
EP 11759618 A 20110325; CN 201180013782 A 20110325; JP 2011057462 W 20110325; JP 2012507118 A 20110325; US 201113636940 A 20110325