Global Patent Index - EP 2829590 A4

EP 2829590 A4 20151209 - LUBRICATING OIL COMPOSITION FOR SHOCK ABSORBER

Title (en)

LUBRICATING OIL COMPOSITION FOR SHOCK ABSORBER

Title (de)

SCHMIERÖLZUSAMMENSETZUNG FÜR STOSSDÄMPFER

Title (fr)

COMPOSITION D'HUILE LUBRIFIANTE POUR AMORTISSEUR

Publication

EP 2829590 A4 20151209 (EN)

Application

EP 13765002 A 20130319

Priority

  • JP 2012067422 A 20120323
  • JP 2013057811 W 20130319

Abstract (en)

[origin: EP2829590A1] To provide a lubricating oil composition for a shock absorber for preventing wearing a piston rod and a guide bush in a shock absorber, which composition lowers the friction coefficient at the interface between bronze and chromium and reduces wear area of bronze. The lubricating oil composition for a shock absorber contains (A) a base oil composed of a mineral oil and/or a synthetic oil, and (B) a polyhydric alcohol partial ester having a C10 to C20 fatty acid residue, in an amount of 0.05 mass% to 10 mass%, with respect to the total amount of the composition.

IPC 8 full level

C10M 129/76 (2006.01); C10M 169/04 (2006.01); C10N 30/06 (2006.01); C10N 40/06 (2006.01)

CPC (source: EP US)

C10M 129/76 (2013.01 - EP US); C10M 141/10 (2013.01 - US); C10M 169/04 (2013.01 - EP US); C10M 2203/1006 (2013.01 - EP US); C10M 2207/283 (2013.01 - EP US); C10M 2207/2895 (2013.01 - EP US); C10M 2223/045 (2013.01 - EP US); C10N 2030/06 (2013.01 - EP US); C10N 2040/08 (2013.01 - EP US)

Citation (search report)

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 2829590 A1 20150128; EP 2829590 A4 20151209; CN 104204162 A 20141210; JP 2013199535 A 20131003; JP 5879168 B2 20160308; KR 20140139491 A 20141205; US 2015038384 A1 20150205; WO 2013141235 A1 20130926

DOCDB simple family (application)

EP 13765002 A 20130319; CN 201380015334 A 20130319; JP 2012067422 A 20120323; JP 2013057811 W 20130319; KR 20147024466 A 20130319; US 201314384112 A 20130319