EP 2087077 A2 20090812 - LUBRICANT COMPOSITION FOR THE REDUCTION OF PISTON RING FOULING IN AN INTERNAL COMBUSTION ENGINE
Title (en)
LUBRICANT COMPOSITION FOR THE REDUCTION OF PISTON RING FOULING IN AN INTERNAL COMBUSTION ENGINE
Title (de)
SCHMIERSTOFFZUSAMMENSETZUNG ZUR VERRINGERUNG DER KOLBENRINGABLAGERUNGEN IN EINEM VERBRENNUNGSMOTOR
Title (fr)
COMPOSITION LUBRIFIANTE PERMETTANT D'ATTÉNUER L'ENCRASSEMENT DES SEGMENTS DE PISTON DANS UN MOTEUR THERMIQUE
Publication
Application
Priority
- EP 2007062141 W 20071109
- EP 06123806 A 20061110
- EP 07822430 A 20071109
Abstract (en)
[origin: WO2008055976A2] The present invention relates to a lubricant composition comprising a base oil or base oil blend and one or more additives, wherein the lubricant composition has a kinematic viscosity at 100°C of more than 5.0 mm<SUP>2</SUP>/s (cSt), a cold cranking simulated dynamic viscosity at -15°C according to ASTM D 5293 of less than 9500 mPas (cP) and a mini rotary viscosity test value of less than 60000 mPas at -20°C according to ASTM D 4684, and wherein the base oil or base oil blend has been obtained from a waxy paraffinic Fischer-Tropsch synthesized hydrocarbon fraction and comprises a continuous series of isoparaffins having n, n+1, n+2, n+3 and n+4 carbon atoms, wherein n is between 15 and 35, suitable for the reduction of piston ring fouling in an internal combustion engine.
IPC 8 full level
C10M 105/04 (2006.01); C10N 20/02 (2006.01); C10N 30/02 (2006.01); C10N 40/25 (2006.01)
CPC (source: EP US)
C10M 105/04 (2013.01 - EP US); C10M 2205/173 (2013.01 - EP US); C10N 2020/02 (2013.01 - EP US); C10N 2020/065 (2020.05 - EP US); C10N 2030/04 (2013.01 - EP US); C10N 2030/42 (2020.05 - EP US); C10N 2030/43 (2020.05 - EP US); C10N 2030/45 (2020.05 - EP US); C10N 2040/25 (2013.01 - EP US)
Citation (search report)
See references of WO 2008055976A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008055976 A2 20080515; WO 2008055976 A3 20081218; BR PI0718036 A2 20131112; CN 101535453 A 20090916; EP 2087077 A2 20090812; JP 2010509423 A 20100325; RU 2009122229 A 20101220; US 2009312205 A1 20091217
DOCDB simple family (application)
EP 2007062141 W 20071109; BR PI0718036 A 20071109; CN 200780041693 A 20071109; EP 07822430 A 20071109; JP 2009535742 A 20071109; RU 2009122229 A 20071109; US 51392607 A 20071109