EP 2245125 A1 20101103 - LUBRICATING COMPOSITION FOR FOUR STROKE ENGINE WITH LOW ASH CONTENT
Title (en)
LUBRICATING COMPOSITION FOR FOUR STROKE ENGINE WITH LOW ASH CONTENT
Title (de)
SCHMIERMITTELZUSAMMENSETZUNG FÜR VIERTAKTMOTOR MIT GERINGEM ASCHEGEHALT
Title (fr)
COMPOSITION LUBRIFIANTE POUR MOTEUR QUATRE TEMPS A BAS TAUX DE CENDRES
Publication
Application
Priority
- FR 2008001668 W 20081202
- FR 0708423 A 20071203
Abstract (en)
[origin: WO2009101276A1] The invention relates to a lubricating composition for a four-stroke engine with a low ash content, that comprises : a) one or more base oils selected from oils of groups I to V, preferably from oils of groups III or FV of the API classification; b) at least one compound (b) selected from the group of heavy PAO with a kinematic viscosity at 100°C of between 75 and 3000 est, optionally mixed with one or more compounds selected in the group of polymer compounds of the polyisobutene (PIB) type or a mixture thereof; and c) at least one ester of the formula R(OH)m, (COOR' (OH)p)n in which m is an integer from 0 to 8, preferably from 1 to 4, n is an integer from 1 to 8, preferably from 1 to 4, and p is an integer from 0 to 8, preferably from 1 to 4, wherein the sum p+m is strictly higher than zero, R and R' independently represent a linear or branched, saturated or unsaturated hydrocarbon group optionally substituted by one or more aromatic groups and including from 1 to 30 carbon atoms, or the borate derivatives thereof; wherein said composition has a sulphated ash content lower than or equal 0.5% as measured according to the ASTM D874 standard, a phosphorus content lower than or equal to 500 ppm as measured according to the ASTM D5185 standard, and a sulphur content lower than 0.2% as measured according to the ASTM D5185 standard. The composition has good detergency properties, and the use thereof enhances fuel savings.
IPC 8 full level
C10M 161/00 (2006.01); C10M 169/04 (2006.01); C10N 10/04 (2006.01); C10N 20/02 (2006.01); C10N 30/04 (2006.01); C10N 30/06 (2006.01); C10N 40/25 (2006.01)
CPC (source: EP US)
C10M 161/00 (2013.01 - EP US); C10M 169/044 (2013.01 - EP US); C10M 2203/1025 (2013.01 - EP US); C10M 2205/026 (2013.01 - EP US); C10M 2205/028 (2013.01 - EP US); C10M 2205/0285 (2013.01 - EP US); C10M 2207/026 (2013.01 - EP US); C10M 2207/289 (2013.01 - EP US); C10M 2215/064 (2013.01 - EP US); C10M 2223/043 (2013.01 - EP US); C10M 2223/045 (2013.01 - EP US); C10N 2010/04 (2013.01 - EP US); C10N 2030/04 (2013.01 - EP US); C10N 2030/06 (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 2030/54 (2020.05 - EP US); C10N 2040/25 (2013.01 - EP US)
Citation (search report)
See references of WO 2009101276A1
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 MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
FR 2924439 A1 20090605; FR 2924439 B1 20101022; BR PI0822348 A2 20161101; CA 2707668 A1 20090820; CN 101932683 A 20101229; EP 2245125 A1 20101103; JP 2011505484 A 20110224; JP 5651015 B2 20150107; KR 20100111268 A 20101014; MX 2010006201 A 20100826; US 2011059877 A1 20110310; WO 2009101276 A1 20090820
DOCDB simple family (application)
FR 0708423 A 20071203; BR PI0822348 A 20081202; CA 2707668 A 20081202; CN 200880126051 A 20081202; EP 08872409 A 20081202; FR 2008001668 W 20081202; JP 2010536500 A 20081202; KR 20107012133 A 20081202; MX 2010006201 A 20081202; US 74586108 A 20081202