Global Patent Index - EP 2878659 A1

EP 2878659 A1 20150603 - LUBRICATING OIL COMPOSITION

Title (en)

LUBRICATING OIL COMPOSITION

Title (de)

SCHMIERÖLZUSAMMENSETZUNG

Title (fr)

COMPOSITION D'HUILE LUBRIFIANTE

Publication

EP 2878659 A1 20150603 (EN)

Application

EP 13823712 A 20130724

Priority

  • JP 2012163624 A 20120724
  • JP 2013079828 A 20130405
  • JP 2013079816 A 20130405
  • JP 2013079829 A 20130405
  • JP 2013079830 A 20130405
  • JP 2013079832 A 20130405
  • JP 2013070101 W 20130724

Abstract (en)

A lubricating oil composition comprising a lubricating base oil having a kinematic viscosity at 100°C of 1 to 10 mm 2 /s, and a poly(meth)acrylate viscosity index improver containing a structural unit represented by the formula (1) in a proportion of 30 to 90 mol% and having a hydrocarbon main chain ratio of 0.18 or less: wherein R 1 represents hydrogen or a methyl group, and R 2 represents a linear or branched hydrocarbon group having a carbon number of 6 or less.

IPC 8 full level

C10M 145/14 (2006.01); C10N 30/02 (2006.01)

CPC (source: EP US)

C10M 145/14 (2013.01 - EP US); C10M 161/00 (2013.01 - US); C10M 2201/087 (2013.01 - EP US); C10M 2203/1006 (2013.01 - EP US); C10M 2203/1025 (2013.01 - EP US); C10M 2207/262 (2013.01 - EP US); C10M 2207/289 (2013.01 - EP US); C10M 2209/084 (2013.01 - EP US); C10M 2215/28 (2013.01 - EP US); C10M 2219/068 (2013.01 - EP US); C10M 2223/045 (2013.01 - EP US); C10N 2010/04 (2013.01 - EP US); C10N 2010/12 (2013.01 - EP US); C10N 2020/02 (2013.01 - EP US); C10N 2020/04 (2013.01 - EP US); C10N 2030/02 (2013.01 - EP US); C10N 2030/06 (2013.01 - EP US); C10N 2030/54 (2020.05 - EP US); C10N 2030/68 (2020.05 - EP US); C10N 2040/04 (2013.01 - EP US); C10N 2040/25 (2013.01 - EP US); C10N 2040/252 (2020.05 - EP US); C10N 2040/255 (2020.05 - EP US)

C-Set (source: EP US)

EP

  1. C10M 2219/068 + C10N 2010/12
  2. C10M 2203/1025 + C10N 2020/02
  3. C10M 2223/045 + C10N 2010/04
  4. C10M 2207/262 + C10N 2010/04

US

  1. C10M 2223/045 + C10N 2010/04
  2. C10M 2203/1025 + C10N 2020/02
  3. C10M 2219/068 + C10N 2010/12
  4. C10M 2207/262 + C10N 2010/04

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)

EP 2878659 A1 20150603; EP 2878659 A4 20160309; CN 104487554 A 20150401; CN 104487554 B 20180313; JP 6125503 B2 20170510; JP WO2014017559 A1 20160711; US 2015203785 A1 20150723; WO 2014017559 A1 20140130

DOCDB simple family (application)

EP 13823712 A 20130724; CN 201380039481 A 20130724; JP 2013070101 W 20130724; JP 2014526981 A 20130724; US 201314416339 A 20130724