EP 1676902 B1 20190320 - Lubricating oil composition having improved oxidation stability at high temperatures
Title (en)
Lubricating oil composition having improved oxidation stability at high temperatures
Title (de)
Schmiermittelzusammensetzung mit verbesserter Oxidationsstabilität bei hohen Temperaturen
Title (fr)
Composition d'huile lubrifiante à stabilité à l'oxydation améliorée à haute température
Publication
Application
Priority
JP 2004380522 A 20041228
Abstract (en)
[origin: EP1676902A1] A lubricating oil composition having a TBN in the range of 5 to 55 mg KOH/g and containing a major amount of a base oil of lubricating viscosity and a) 0.19 to 2.10 wt %, based on the total amount of the lubricating oil composition, of an overbased calcium carboxylate having a TBN of 100 mg KOH/g or more, wherein the wt % is expressed in terms of the calcium content; b) 0.002 to 0.06 wt %, based on the total amount of the lubricating oil composition, of a bis-succinimide compound, wherein the wt % is expressed in terms of the nitrogen content; and c) 0.007 to 0.15 wt %, based on the total amount of the lubricating oil composition, of a zinc dialkyldithiophosphate having a secondary alkyl group, wherein the wt % is expressed in terms of the phosphorus content.
IPC 8 full level
C10M 141/10 (2006.01); C10M 163/00 (2006.01)
CPC (source: EP)
C10M 141/10 (2013.01); C10M 163/00 (2013.01); C10M 2207/26 (2013.01); C10M 2207/262 (2013.01); C10M 2215/28 (2013.01); C10M 2223/045 (2013.01); C10N 2030/08 (2013.01); C10N 2030/10 (2013.01); C10N 2030/42 (2020.05); C10N 2030/52 (2020.05); C10N 2040/252 (2020.05)
Citation (examination)
- JP 2002220597 A 20020809 - NISSAN MOTOR, et al
- EP 1736529 A1 20061227 - NIPPON OIL CORP [JP], et al
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 1676902 A1 20060705; EP 1676902 B1 20190320; CA 2531433 A1 20060628; CA 2531433 C 20140218; JP 2006182987 A 20060713; JP 5198719 B2 20130515; SG 123779 A1 20060726
DOCDB simple family (application)
EP 05258039 A 20051223; CA 2531433 A 20051223; JP 2004380522 A 20041228; SG 200508401 A 20051227