EP 2358849 A1 20110824 - COMPOSITION CONTAINING A BLOCK COPOLYMER AND A METHOD OF LUBRICATING AN INTERNAL COMBUSTION ENGINE
Title (en)
COMPOSITION CONTAINING A BLOCK COPOLYMER AND A METHOD OF LUBRICATING AN INTERNAL COMBUSTION ENGINE
Title (de)
EIN BLOCKPOLYMER ENTHALTENDE ZUSAMMENSETZUNG UND VERFAHREN ZUM SCHMIEREN EINER BRENNKRAFTMASCHINE
Title (fr)
COMPOSITION CONTENANT UN COPOLYMÈRE SÉQUENCÉ ET PROCÉDÉ DE LUBRIFICATION D'UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- US 2009063046 W 20091103
- US 11140808 P 20081105
Abstract (en)
[origin: WO2010053890A1] The invention provides a lubricating composition containing an oil of lubricating viscosity and a block copolymer. The block copolymer may contain (a) a hydrophobic first block having C1-30 alkyl (meth)acrylic units, wherein at least 50 wt % of the C1-30 alkyl (meth)acrylic units are C12-15 alkyl (meth)acrylic units, and up to 50 wt % of the C1-30 alkyl (meth)acrylic units are C16 20 alkyl (meth)acrylic units, with the proviso that alkyl groups of the C1-30 alkyl (meth)acrylic units have an average total number of carbon atoms of at least 8; and (b) a second block having (meth)acrylic units further having a heteroatom-containing group providing a polar group. The invention further relates to a method of lubricating an internal combustion engine by lubricating the engine with the lubricating composition. The invention further relates to the use of the block copolymer as an emulsifier and/or pour point depressant.
IPC 8 full level
C10M 145/14 (2006.01); C10M 149/02 (2006.01); C10M 149/06 (2006.01); C10M 151/02 (2006.01); C10M 153/02 (2006.01); C10N 30/04 (2006.01); C10N 40/25 (2006.01)
CPC (source: EP KR US)
C10M 101/04 (2013.01 - KR); C10M 103/00 (2013.01 - KR); C10M 105/04 (2013.01 - KR); C10M 105/06 (2013.01 - KR); C10M 105/08 (2013.01 - KR); C10M 105/14 (2013.01 - KR); C10M 105/24 (2013.01 - KR); C10M 145/14 (2013.01 - EP KR US); C10M 149/02 (2013.01 - EP US); C10M 149/04 (2013.01 - US); C10M 149/06 (2013.01 - EP KR US); C10M 151/02 (2013.01 - EP KR US); C10M 153/02 (2013.01 - EP KR US); C10M 2209/084 (2013.01 - EP US); C10M 2217/022 (2013.01 - US); C10M 2217/024 (2013.01 - US); C10N 2030/26 (2020.05 - EP US); C10N 2040/25 (2013.01 - EP US); C10N 2040/251 (2020.05 - EP US)
Citation (search report)
See references of WO 2010053890A1
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 SM TR
DOCDB simple family (publication)
WO 2010053890 A1 20100514; AU 2009311294 A1 20100514; AU 2016219628 A1 20160908; BR PI0921231 A2 20180626; CA 2742516 A1 20100514; CA 2742516 C 20190604; CN 102272278 A 20111207; CN 105296063 A 20160203; EP 2358849 A1 20110824; JP 2012507613 A 20120329; JP 5559803 B2 20140723; KR 101679090 B1 20161123; KR 20110095286 A 20110824; US 2011263470 A1 20111027; US 2016362628 A1 20161215; US 2018030366 A1 20180201
DOCDB simple family (application)
US 2009063046 W 20091103; AU 2009311294 A 20091103; AU 2016219628 A 20160824; BR PI0921231 A 20091103; CA 2742516 A 20091103; CN 200980153482 A 20091103; CN 201510634360 A 20091103; EP 09748200 A 20091103; JP 2011534870 A 20091103; KR 20117012684 A 20091103; US 200913127114 A 20091103; US 201615249873 A 20160829; US 201715730879 A 20171012