Title:
LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2014/010682
Kind Code:
A1
Abstract:
A lubricating oil composition comprising, blended into a base oil, (A) an ester phosphate, (B) an ester thiophosphate, and (C) a naphthylamine derivative. This lubricating oil composition has excellent abrasion resistance and does not readily produce sludge even at high temperatures, and is therefore suitable for an oil retaining bearing of a high-speed spindle motor used for a DVD-RAM, a blue-ray disc, or the like.
Inventors:
KIKO YUMIKO (JP)
Application Number:
PCT/JP2013/069009
Publication Date:
January 16, 2014
Filing Date:
July 11, 2013
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
KIKO YUMIKO (JP)
KIKO YUMIKO (JP)
International Classes:
C10M141/10; C10M101/02; C10M107/02; C10M129/72; C10M133/12; C10M133/38; C10M137/04; C10M137/10; C10M169/04; F16C33/10; F16C33/12; C10N30/06; C10N40/02
Foreign References:
| JP2000336384A | 2000-12-05 | |||
| JP2008280540A | 2008-11-20 | |||
| JP2002146381A | 2002-05-22 | |||
| JP2005239897A | 2005-09-08 | |||
| JP2005187645A | 2005-07-14 | |||
| JP2008045111A | 2008-02-28 | |||
| JP4777526B2 | 2011-09-21 |
Other References:
See also references of EP 2873718A4
Attorney, Agent or Firm:
KINOSHITA & ASSOCIATES (JP)
Bottom intellectual property office of patent business corporation Tatsuyuki (JP)
Bottom intellectual property office of patent business corporation Tatsuyuki (JP)
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