EP 3555249 A1 20191023 - ETHER-BASED LUBRICANT COMPOSITIONS, METHODS AND USES
Title (en)
ETHER-BASED LUBRICANT COMPOSITIONS, METHODS AND USES
Title (de)
ETHERBASIERTE SCHMIERMITTELZUSAMMENSETZUNGEN, VERFAHREN UND VERWENDUNGEN
Title (fr)
COMPOSITIONS LUBRIFIANTES À BASE D'ÉTHER, PROCÉDÉS ET UTILISATIONS
Publication
Application
Priority
- CN 2016110333 W 20161216
- EP 2017082926 W 20171214
Abstract (en)
[origin: WO2018109125A1] The present invention provides a lubricant composition for an internal combustion engine comprising a base oil of lubricating viscosity, wherein the base oil comprises an ether base stock of formula (A): where: Ra and Rb are aliphatic hydrocarbyl groups and may be the same or different; wherein at least one of Ra and Rb is branched-chain alkyl, alkoxy-substituted-alkyl or cycloalkyl-substituted-alkyl; the lubricant composition further comprising: i) at least one molybdenum compound as a lubricant additive which is present, on a molybdenum element basis, in an amount of at least 0.06 % by weight of the lubricant composition; or ii) at least one polymethacrylate compound as a lubricant additive which is present in an amount of from 0.1 to 7.5 % by weight of the lubricant composition. The lubricant composition may be used for lubricating a surface in an internal combustion engine as well as for improving the fuel economy performance and/or piston cleanliness performance and/or turbocharger cleanliness performance of an engine and/or a vehicle, such as an automotive vehicle associated with an internal combustion engine.
IPC 8 full level
C10M 169/04 (2006.01)
CPC (source: EP US)
C10M 169/044 (2013.01 - EP US); C10M 2201/066 (2013.01 - US); C10M 2203/1025 (2013.01 - EP US); C10M 2205/0285 (2013.01 - EP US); C10M 2207/026 (2013.01 - EP US); C10M 2207/028 (2013.01 - EP US); C10M 2207/04 (2013.01 - EP US); C10M 2207/0406 (2013.01 - EP US); C10M 2209/084 (2013.01 - EP US); C10M 2215/065 (2013.01 - EP US); C10M 2215/066 (2013.01 - EP US); C10M 2219/046 (2013.01 - EP US); C10M 2223/045 (2013.01 - EP US); C10M 2227/066 (2013.01 - EP US); C10N 2010/12 (2013.01 - EP US); C10N 2030/02 (2013.01 - EP US); C10N 2030/04 (2013.01 - EP US); C10N 2030/08 (2013.01 - EP US); C10N 2030/10 (2013.01 - EP US); C10N 2030/52 (2020.05 - EP US); C10N 2030/54 (2020.05 - US); C10N 2030/74 (2020.05 - EP US); C10N 2040/25 (2013.01 - EP US)
Citation (search report)
See references of WO 2018109125A1
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2018109125 A1 20180621; CN 110462012 A 20191115; EP 3555249 A1 20191023; JP 2020502340 A 20200123; US 2019309237 A1 20191010
DOCDB simple family (application)
EP 2017082926 W 20171214; CN 201780086757 A 20171214; EP 17816809 A 20171214; JP 2019532738 A 20171214; US 201716470242 A 20171214