EP 2133406 B1 20110817 - Lubricating oil composition for internal combustion engine
Title (en)
Lubricating oil composition for internal combustion engine
Title (de)
Schmierölzusammensetzung für einen Verbrennungsmotor
Title (fr)
Composition d'huile lubrifiante pour moteur à combustion interne
Publication
Application
Priority
JP 2008150903 A 20080609
Abstract (en)
[origin: EP2133406A1] A lubricating oil composition for internal combustion engines contains: base oil; (A) a boronated product of a polyalkenyl succinimide compound; (B) molybdenum dithiocarbamate; and (C) zinc dialkyldithiophosphate. The component (A) is a boronated product of a succinimide compound represented by the following formula (1), and the succinimide compound is obtained by reacting (a) a succinic acid or its anhydride substituted by a polyalkenyl group with (b) polyalkylene polyamine of which 5 mol% or more of the entirety has a ring structure at its terminal. B/N ratio thereof is 0.5 or more, and a content of the component (A) is 0.01 to 0.1 mass% of the total amount of the composition in terms of boron. The component (B) is MoDTC represented by the following formula (2), and a content of the component (B) is 0.01 to 0.08 mass% of the total amount of the composition in terms of Mo. A content of the component (C) is 0.01 to 0.09 mass% of the total amount of the composition in terms of phosphorus. Each symbol in the above formulae means the same as described in the description.
IPC 8 full level
C10M 141/12 (2006.01); C10N 10/04 (2006.01); C10N 10/12 (2006.01); C10N 20/04 (2006.01); C10N 40/25 (2006.01); C10N 60/14 (2006.01)
CPC (source: EP)
C10M 141/12 (2013.01); C10M 2203/1025 (2013.01); C10M 2205/022 (2013.01); C10M 2207/026 (2013.01); C10M 2207/028 (2013.01); C10M 2207/283 (2013.01); C10M 2215/064 (2013.01); C10M 2215/28 (2013.01); C10M 2219/046 (2013.01); C10M 2219/068 (2013.01); C10M 2223/045 (2013.01); C10N 2010/04 (2013.01); C10N 2020/04 (2013.01); C10N 2030/06 (2013.01); C10N 2030/42 (2020.05); C10N 2030/43 (2020.05); C10N 2030/45 (2020.05); C10N 2040/12 (2013.01); C10N 2040/253 (2020.05); C10N 2040/255 (2020.05); C10N 2060/14 (2013.01)
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 MK MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2133406 A1 20091216; EP 2133406 B1 20110817; AT E520762 T1 20110915; JP 2009292998 A 20091217; JP 4597223 B2 20101215
DOCDB simple family (application)
EP 09162272 A 20090609; AT 09162272 T 20090609; JP 2008150903 A 20080609