EP 2899255 B1 20170802 - OIL COMPOSITION COMPRISING A VISCOSITY INDEX IMPROVER
Title (en)
OIL COMPOSITION COMPRISING A VISCOSITY INDEX IMPROVER
Title (de)
ÖLZUSAMMENSETZUNG MIT EINEM VISKOSITÄTSINDEXVERBESSERER
Title (fr)
COMPOSITION D'HUILE COMPRENANT UN AMÉLIORATEUR D'INDICE DE VISCOSITÉ
Publication
Application
Priority
- JP 2013048290 A 20130311
- JP 2014055800 W 20140306
Abstract (en)
[origin: EP2899255A1] The present invention provides a viscosity index improver that is excellent in an effect of improving a viscosity index and a high-temperature high-shear viscosity of oils, etc. The viscosity index improver of the present invention includes a hydrogenated product of a copolymer containing a constitutional unit (a) derived from an aromatic vinyl compound and a constitutional unit (b) derived from a conjugated diene, a content of a constitutional unit (b1) derived from farnesene in a whole amount of the constitutional unit (b) derived from the conjugated diene being from 1 to 100% by mass, and a content of a constitutional unit (b2) derived from a conjugated diene other than farnesene in a whole amount of the constitutional unit (b) derived from the conjugated diene being from 0 to 99% by mass, and 50 mol% or more of carbon-carbon double bonds in the constitutional unit (b) derived from the conjugated diene being hydrogenated.
IPC 8 full level
C10M 143/12 (2006.01); C10M 143/00 (2006.01); C10N 30/02 (2006.01)
CPC (source: EP US)
C10M 143/00 (2013.01 - EP US); C10M 143/12 (2013.01 - EP US); C10M 2205/04 (2013.01 - EP US); C10N 2030/02 (2013.01 - EP US); C10N 2030/68 (2020.05 - EP US); C10N 2040/04 (2013.01 - EP US); C10N 2040/042 (2020.05 - EP US); C10N 2040/08 (2013.01 - EP US); C10N 2040/25 (2013.01 - EP US)
C-Set (source: EP US)
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
DOCDB simple family (publication)
EP 2899255 A1 20150729; EP 2899255 A4 20151028; EP 2899255 B1 20170802; CA 2888668 A1 20140918; CA 2888668 C 20161018; CN 104704090 A 20150610; JP 5671658 B1 20150218; JP WO2014142001 A1 20170216; KR 101552090 B1 20150909; KR 20150048902 A 20150507; TW 201443209 A 20141116; TW I526527 B 20160321; US 2015284656 A1 20151008; WO 2014142001 A1 20140918
DOCDB simple family (application)
EP 14763262 A 20140306; CA 2888668 A 20140306; CN 201480002724 A 20140306; JP 2014055800 W 20140306; JP 2014533732 A 20140306; KR 20157009928 A 20140306; TW 103108067 A 20140310; US 201414436700 A 20140306