Title:
LUBRICANT OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2010/140562
Kind Code:
A1
Abstract:
A lubricant oil composition which comprises: a lubricant base oil having a kinematic viscosity of 1 to 20 mm2/s at 100˚C; and a viscosity index-improving agent having a ratio of the total surface area (M1a) of peaks appearing within a chemical shift range between 29-31 ppm to the total surface area (M2a) of peaks appearing within a chemical shift range between 64-69 ppm (i.e., an M1a/M2a ratio) is 10 or more with respect to the total surface area of all peaks in spectra obtained by 13C-NMR.
Inventors:
MATSUI SHIGEKI (JP)
YAGUCHI AKIRA (JP)
KUDO REIKO (JP)
YAGUCHI AKIRA (JP)
KUDO REIKO (JP)
Application Number:
PCT/JP2010/059196
Publication Date:
December 09, 2010
Filing Date:
May 31, 2010
Export Citation:
Assignee:
NIPPON OIL CORP (JP)
MATSUI SHIGEKI (JP)
YAGUCHI AKIRA (JP)
KUDO REIKO (JP)
MATSUI SHIGEKI (JP)
YAGUCHI AKIRA (JP)
KUDO REIKO (JP)
International Classes:
C10M171/00; C10M145/14; C10N20/00; C10N20/02; C10N20/04; C10N30/00; C10N30/02; C10N40/25
Domestic Patent References:
| WO2007116759A1 | 2007-10-18 | |||
| WO2008093446A1 | 2008-08-07 |
Foreign References:
| JP2007045850A | 2007-02-22 | |||
| JP2001279287A | 2001-10-10 | |||
| JP2002129182A | 2002-05-09 | |||
| JPH08302378A | 1996-11-19 | |||
| JPH06306384A | 1994-11-01 |
Other References:
See also references of EP 2439259A4
Attorney, Agent or Firm:
HASEGAWA, Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)
Yoshiki Hasegawa (JP)
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