Title:
TRANSMISSION LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2016/009670
Kind Code:
A1
Abstract:
As a transmission lubricating oil composition that improves fuel efficiency while having excellent abrasion/seizure resistance and sealing material compatibility, the present invention provides a transmission lubricating oil composition characterized in that: the composition comprises, 200-600 ppm by mass of a phosphite ester (B) calculated as elemental phosphorus, 50-200 ppm by mass of an alkali metal and/or alkaline earth metal cleaning agent (C) calculated as elemental metal, and 20-120 ppm by mass of a boron-containing ashless dispersant (D) calculated as elemental boron in a mineral base oil (A), the kinematic viscosity at 100°C of which is 2.0 mm2/s to 3.8 mm2/s, the %CP of which is 60 to 85, the %CN of which is 15 to 40 and the %CA of which is not more than 3; and the kinematic viscosity at 100°C of the composition is 2.5 mm2/s to 4.3 mm2/s.
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Inventors:
MASUDA KOHEI (JP)
Application Number:
PCT/JP2015/056963
Publication Date:
January 21, 2016
Filing Date:
March 10, 2015
Export Citation:
Assignee:
JX NIPPON OIL & ENERGY CORP (JP)
International Classes:
C10M169/04; C10M101/02; C10M133/56; C10M135/10; C10M135/20; C10M135/36; C10M137/02; C10M139/00; C10M159/20; C10M159/24; C10N10/02; C10N10/04; C10N20/00; C10N20/02; C10N30/00; C10N30/02; C10N30/06; C10N40/04
Domestic Patent References:
| WO2007052833A1 | 2007-05-10 | |||
| WO2004074414A1 | 2004-09-02 |
Foreign References:
| JP2007326963A | 2007-12-20 | |||
| JP2014159496A | 2014-09-04 | |||
| JP2001262176A | 2001-09-26 | |||
| JP2003113391A | 2003-04-18 | |||
| JP2014037533A | 2014-02-27 | |||
| JP2003321695A | 2003-11-14 | |||
| JP2001279286A | 2001-10-10 |
Attorney, Agent or Firm:
MORITA, NOBUYUKI (JP)
Yoriyuki Morita (JP)
Yoriyuki Morita (JP)
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