Title:
LUBRICANT COMPOSITION, BEARING OIL AND BEARING USING SAME
Document Type and Number:
WIPO Patent Application WO/2007/058186
Kind Code:
A1
Abstract:
Disclosed is a lubricant composition comprising a base oil which contains not less than 50% by mass of an α-olefin oligomer and/or a hydrogenated product of an α-olefin oligomer. The kinematic viscosity and the flash point of the base oil satisfy the following relation (I): Flash point (˚C) ≥ 49 × lnγ + 90 (I) (wherein γ represents the kinematic viscosity (mm2/s) at 40˚C). The base oil of this lubricant composition has low viscosity, extremely low evaporativity and high flash point, and has little effect on a resin or elastomer since it is a nonpolar compound. Consequently, the lubricant composition is suitable for various applications, in particular for bearing oils.
Inventors:
KAMIMURA HIDETO (JP)
HASHIMOTO KATSUMI (JP)
HASHIMOTO KATSUMI (JP)
Application Number:
PCT/JP2006/322711
Publication Date:
May 24, 2007
Filing Date:
November 15, 2006
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
KAMIMURA HIDETO (JP)
HASHIMOTO KATSUMI (JP)
KAMIMURA HIDETO (JP)
HASHIMOTO KATSUMI (JP)
International Classes:
C10M105/04; F16C17/00; F16C33/10; C10N20/00; C10N20/02; C10N30/00; C10N30/08; C10N40/02; C10N40/04; C10N40/08; C10N40/12; C10N40/20; C10N60/02; C10N70/00
Domestic Patent References:
| WO2004058928A1 | 2004-07-15 | |||
| WO2006120925A1 | 2006-11-16 |
Foreign References:
| JP2004051720A | 2004-02-19 | |||
| JP2005306957A | 2005-11-04 |
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (Bridgestone Toranomon Bldg.6F. 25-2, Toranomon 3-chom, Minato-ku Tokyo 01, JP)
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