EP 2169037 A4 20140820 - LUBRICATING OIL COMPOSITION FOR BUFFER
Title (en)
LUBRICATING OIL COMPOSITION FOR BUFFER
Title (de)
SCHMIERÖLZUSAMMENSETZUNG FÜR PUFFER
Title (fr)
COMPOSITION D'HUILE LUBRIFIANTE POUR UN AMORTISSEUR
Publication
Application
Priority
- JP 2008062070 W 20080703
- JP 2007180178 A 20070709
Abstract (en)
[origin: EP2169037A1] The invention provides a lubricating oil composition for a shock absorber, containing a base oil composed of a mineral oil and/or a synthetic oil, and (A) zinc dialkyldithiophosphate having a C7 to C12 alkyl group in an amount of 0.3 to 2 mass%, (B) a fatty acid amide in an amount of 0.05 to 2 mass%, and (C) a monocyclic phenol anti-oxidant in an amount of 0.1 to 1 mass%, and that the base oil contains an ester having a -COO- bond in an amount of 0.6 mass% or less as reduced to -COO-. The composition can increase the frictional force at a sliding part, such as between a piston rod and an oil seal or between a piston band and a cylinder in a shock absorber, while maintaining excellent wear resistance without impairing corrosion resistance or sludge formation resistance; and realizes both high-level handling/stability and high-level riding quality.
IPC 8 full level
C10M 169/04 (2006.01); C10M 101/02 (2006.01); C10M 105/06 (2006.01); C10M 105/18 (2006.01); C10M 107/02 (2006.01); C10M 107/06 (2006.01); C10M 107/08 (2006.01); C10M 107/10 (2006.01); C10M 107/34 (2006.01); C10M 129/10 (2006.01); C10M 133/16 (2006.01); C10M 137/10 (2006.01); C10N 20/00 (2006.01); C10N 30/04 (2006.01); C10N 30/06 (2006.01); C10N 30/12 (2006.01); C10N 40/06 (2006.01)
CPC (source: EP)
C10M 141/10 (2013.01); C10M 2203/1006 (2013.01); C10M 2207/026 (2013.01); C10M 2207/2895 (2013.01); C10M 2209/084 (2013.01); C10M 2215/08 (2013.01); C10M 2215/28 (2013.01); C10M 2219/046 (2013.01); C10M 2219/106 (2013.01); C10M 2223/043 (2013.01); C10M 2223/049 (2013.01); C10M 2229/051 (2013.01); C10N 2020/04 (2013.01); C10N 2030/06 (2013.01); C10N 2030/10 (2013.01); C10N 2030/12 (2013.01); C10N 2030/40 (2020.05); C10N 2030/52 (2020.05)
Citation (search report)
- [XI] EP 0719851 A2 19960703 - ASAHI DENKA KOGYO KK [JP]
- [AD] EP 0799883 A1 19971008 - IDEMITSU KOSAN CO [JP]
- [A] EP 0761805 A2 19970312 - LUBRIZOL CORP [US]
- See references of WO 2009008327A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2169037 A1 20100331; EP 2169037 A4 20140820; EP 2169037 B1 20190320; CN 101688146 A 20100331; CN 101688146 B 20130327; JP 2009013380 A 20090122; JP 5150154 B2 20130220; WO 2009008327 A1 20090115
DOCDB simple family (application)
EP 08777822 A 20080703; CN 200880023654 A 20080703; JP 2007180178 A 20070709; JP 2008062070 W 20080703