EP 1792969 A1 20070606 - A lubricating oil composition comprising a lithium containing detergent for reducing catalyst poisoning
Title (en)
A lubricating oil composition comprising a lithium containing detergent for reducing catalyst poisoning
Title (de)
Schmiermittelzusammensetzung enthaltend ein Lithium enthaltendes Tensid zur Reduktion der Katalysatorenvergiftung
Title (fr)
Composition lubrifiante comprenant un détergent de lithium pour la réduction de l'empoisonnement du catalyseur
Publication
Application
Priority
US 29356005 A 20051202
Abstract (en)
The present invention is directed to a lubricating oil composition comprising (a) an oil of lubricating viscosity (b) a lithium-containing detergent (c) a detergent other than a lithium-containing detergent (d) an amine-containing anti-oxidant (e) an ethylene carbonate treated dispersant and (f) a phosphorus-containing anti-wear agent, wherein the lubricating oil composition contains no more than 0.1 weight percent of lithium and no more than 0.12 weight percent phosphorus, and provided the lubricating oil composition does not contain a calcium-containing detergent. The present invention is also directed to method for reducing catalyst poisoning in exhaust after treatment systems in internal combustion engines, which comprises operating the engine with the lubricating oil compositions of the present invention.
IPC 8 full level
C10M 163/00 (2006.01); C10N 10/02 (2006.01); C10N 40/25 (2006.01)
CPC (source: EP US)
C10M 163/00 (2013.01 - EP US); C10M 2207/028 (2013.01 - EP US); C10M 2207/26 (2013.01 - EP US); C10M 2207/262 (2013.01 - EP US); C10M 2219/087 (2013.01 - EP US); C10N 2010/02 (2013.01 - EP US); C10N 2010/04 (2013.01 - EP US); C10N 2030/42 (2020.05 - EP US); C10N 2030/43 (2020.05 - EP US); C10N 2040/25 (2013.01 - EP US)
Citation (search report)
- [X] EP 1418220 A2 20040512 - CHEVRON ORONITE CO [US]
- [A] EP 1104800 A2 20010606 - ORONITE JAPAN LTD [JP]
- [A] EP 0814148 A2 19971229 - ORONITE JAPAN LIMITED [JP]
- [A] US 2004235688 A1 20041125 - LOCKE CHRISTOPHER J [GB], et al
Designated contracting state (EPC)
DE FR GB NL
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1792969 A1 20070606; CA 2569167 A1 20070602; JP 2007154199 A 20070621; SG 132648 A1 20070628; US 2007129263 A1 20070607
DOCDB simple family (application)
EP 06255465 A 20061024; CA 2569167 A 20061128; JP 2006326060 A 20061201; SG 2006081913 A 20061124; US 29356005 A 20051202