EP 2336277 A4 20120321 - LUBRICATING OIL COMPOSITION
Title (en)
LUBRICATING OIL COMPOSITION
Title (de)
SCHMIERÖLZUSAMMENSETZUNG
Title (fr)
COMPOSITION D HUILE LUBRIFIANTE
Publication
Application
Priority
- JP 2009004907 W 20090928
- JP 2008259371 A 20081006
Abstract (en)
[origin: EP2336277A1] The present invention provides a lubricating oil composition having a low traction coefficient that can reduce the friction between parts such as gear teeth surfaces, exposed to elastohydrodynamic lubrication conditions to attain energy saving properties and high efficiency, suitable for use in manual, automatic and continuously variable transmissions of automobiles or industrial gear systems. The low traction coefficient lubricating oil composition comprises a lubricating base oil containing (A) a partial ester of a polyhydric alcohol and a carboxylic acid in an amount of 0.1 to 80 percent by mass on the basis of the total mass of the base oil and having a kinematic viscosity at 100°C of 1 to 15 mm 2 /s, the composition having a kinematic viscosity at 100°C of 1 to 20 mm 2 /s.
IPC 8 full level
C10M 105/40 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (2006.01); C10N 30/02 (2006.01); C10N 40/04 (2006.01)
CPC (source: EP US)
C10M 105/40 (2013.01 - EP US); C10M 171/002 (2013.01 - EP US); C10M 2201/085 (2013.01 - EP US); C10M 2205/0285 (2013.01 - EP US); C10M 2207/2815 (2013.01 - EP US); C10M 2207/2835 (2013.01 - EP US); C10M 2207/2855 (2013.01 - EP US); C10M 2207/289 (2013.01 - EP US); C10M 2207/2895 (2013.01 - EP US); C10M 2209/084 (2013.01 - EP US); C10M 2219/022 (2013.01 - EP US); C10M 2223/04 (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 2030/08 (2013.01 - EP US); C10N 2030/58 (2020.05 - EP US); C10N 2040/04 (2013.01 - EP US); C10N 2040/042 (2020.05 - EP US); C10N 2040/044 (2020.05 - EP US); C10N 2040/045 (2020.05 - EP US)
Citation (search report)
- [X] EP 0275313 A1 19880727 - TOA NENRYO KOGYO KK [JP] & JP S62283195 A 19871209 - TOA NENRYO KOGYO KK
- [X] US 2007232506 A1 20071004 - GAO JASON Z [US], et al
- [X] EP 1482190 A2 20041201 - NISSAN MOTOR [JP]
- [A] EP 0905221 A1 19990331 - NCH CORP [US]
- [XI] WO 9845389 A1 19981015 - EXXON CHEMICAL PATENTS INC [US]
- [A] US 2006270568 A1 20061130 - KAWATA KEN [JP]
- See references of WO 2010041383A1
Citation (examination)
- WO 2008013698 A1 20080131 - EXXONMOBIL RES & ENG CO [US], et al
- KURTH ET AL: "Non-linear adsorption modeling of fatty esters and oleic estolide esters via boundary lubrication coefficient of friction measurements", WEAR, ELSEVIER SEQUOIA, LAUSANNE, CH, vol. 262, no. 5-6, 26 January 2007 (2007-01-26), pages 536 - 544, XP005738080, ISSN: 0043-1648, DOI: 10.1016/J.WEAR.2006.06.020
- MICHAEL T COSTELLO: "Effects of basestock and additive chemistry on traction testing", TRIBOLOGY LETTERS, KLUWER ACADEMIC PUBLISHERS-PLENUM PUBLISHERS, NE, vol. 18, no. 1, 1 January 2005 (2005-01-01), pages 91 - 97, XP019292432, ISSN: 1573-2711
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)
EP 2336277 A1 20110622; EP 2336277 A4 20120321; BR PI0919747 A2 20160906; CN 102171316 A 20110831; CN 102171316 B 20130612; JP 2010090210 A 20100422; JP 5398218 B2 20140129; RU 2011118372 A 20121120; RU 2501846 C2 20131220; US 2011190183 A1 20110804; WO 2010041383 A1 20100415
DOCDB simple family (application)
EP 09818923 A 20090928; BR PI0919747 A 20090928; CN 200980139672 A 20090928; JP 2008259371 A 20081006; JP 2009004907 W 20090928; RU 2011118372 A 20090928; US 200913122570 A 20090928