LUBRICATING OIL COMPOSITION

Title:

LUBRICATING OIL COMPOSITION

Document Type and Number:

WIPO Patent Application WO/2010/041383

Kind Code:

A1

Abstract:

Provided is a lubricating oil composition having a low traction coefficient. The lubricating oil composition can reduce the friction between gear teeth surfaces or between other contacting surfaces mated under the condition of elastohydrodynamic lubrication and attains energy saving and high efficiency, being suitable for use in manual, automatic and continuously variable transmissions of automobiles or in industrial gear systems. The lubricating oil composition is characterized both by comprising, as the base oil, a lubricating oil which contains (A) a partial ester of a polyhydric alcohol with a carboxylic acid in an amount of 0.1 to 80mass% relative to the whole base oil and exhibits a kinematic viscosity of 1 to 15mm2/s at 100°C and by exhibiting a kinematic viscosity of 1 to 20mm2/s at 100°C.

Inventors:

MIYAMOTO HIROYA (JP)
KURIHARA ISAO (JP)

Application Number:

PCT/JP2009/004907

Publication Date:

April 15, 2010

Filing Date:

September 28, 2009

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NIPPON OIL CORP (JP)
MIYAMOTO HIROYA (JP)
KURIHARA ISAO (JP)

International Classes:

C10M105/40; C10M169/04; C10M145/14; C10N20/00; C10N20/02; C10N30/00; C10N30/06; C10N40/04

Foreign References:

JPH02155987A	1990-06-15
JPS63213596A	1988-09-06
JPS62283195A	1987-12-09
JPS62283192A	1987-12-09
JP2004300317A	2004-10-28
JPH10213552A	1998-08-11
JPH0968161A	1997-03-11

Other References: