Global Patent Index - EP 2636725 A1

EP 2636725 A1 2013-09-11 - Lubricating oil composition for automobile engine lubrication

Title (en)

Lubricating oil composition for automobile engine lubrication

Title (de)

Schmierölzusammensetzung für die Schmierung eines Automobilmotors

Title (fr)

Composition d'huile lubrifiante pour la lubrification d'un moteur automobile

Publication

EP 2636725 A1 (EN)

Application

EP 13157940 A

Priority

JP 2012051849 A

Abstract (en)

Provided is a lubricating oil composition that is highly fuel-efficient and has high wear resistance and is particularly suited for lubrication of a motorcycle four-cycle gasoline engine or a diesel engine vehicle having an exhaust gas after-treatment device. The lubricating oil composition, which is a lubricating oil composition having an SAE viscosity grade of 5W20, comprises a base oil and predetermined amounts of additive components comprising of a nitrogen-containing ash-free dispersant, an alkali earth metal-containing detergent, a phosphorus-containing anti-wear agent, an antioxidant, and a viscosity index-improving agent, wherein the viscosity index is within a range of 140 to 230, the high-shear viscosity at 150°C is 2.9 mPa·s or higher, and the NOACK evaporation loss is 13% or less.

IPC 8 full level (invention and additional information)

C10M 171/02 (2006.01); C10N 30/06 (2006.01); C10N 40/25 (2006.01)

CPC (invention and additional information)

C10M 161/00 (2013.01); C10M 171/02 (2013.01); C10M 2203/1025 (2013.01); C10M 2205/022 (2013.01); C10M 2205/163 (2013.01); C10M 2205/173 (2013.01); C10M 2207/026 (2013.01); C10M 2207/028 (2013.01); C10M 2209/084 (2013.01); C10M 2215/064 (2013.01); C10M 2215/28 (2013.01); C10M 2219/022 (2013.01); C10M 2219/046 (2013.01); C10M 2223/045 (2013.01); C10N 2210/06 (2013.01); C10N 2230/06 (2013.01); C10N 2230/54 (2013.01); C10N 2230/68 (2013.01); C10N 2230/74 (2013.01); C10N 2240/10 (2013.01); C10N 2240/102 (2013.01); C10N 2240/104 (2013.01)

Combination set (CPC)

  1. C10M 2203/1025 + C10N 2220/022
  2. C10M 2215/28 + C10N 2260/14
  3. C10M 2207/028 + C10N 2210/02
  4. C10M 2219/046 + C10N 2210/02
  5. C10M 2223/045 + C10N 2210/02
  6. C10M 2205/022 + C10M 2205/024

Citation (applicant)

Citation (search report)

  • [A] WO 2011115265 A1 20110922 - IDEMITSU KOSAN CO [JP], et al & US 2013029892 A1 20130131 - YAMADA RYOU [JP]
  • [A] US 5863873 A 19990126 - BOVINGTON CHARLES HERBERT [GB]
  • [I] US 2009163393 A1 20090625 - BOFFA ALEXANDER B [US], et al
  • [A] TAYLOR ET AL: "Improved fuel efficiency by lubricant design: A review", PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS, PART J.JOURNAL OF ENGINEERING TRIBOLOGY, MECHANICAL ENGINEERING PUBLICATIONS, BURY ST. EDMUNDS, GB, vol. 214, no. 1, 1 January 2000 (2000-01-01), pages 1 - 15, XP009169924, ISSN: 1350-6501

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

EPO simple patent family

EP 2636725 A1 20130911; CA 2808765 A1 20130908; CN 103305318 A 20130918; JP 2013185087 A 20130919; JP 5902005 B2 20160413; KR 20130103388 A 20130923; PH 12013000076 A1 20141124; PH 12013000076 B1 20141124; SG 10201507189W A 20151029; SG 193720 A1 20131030; US 2013237465 A1 20130912; US 2015175929 A1 20150625

INPADOC legal status


2014-04-16 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20140307

2014-04-16 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): 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

2013-09-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): 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

2013-09-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: BA ME