Title:
GREASE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2010/150726
Kind Code:
A1
Abstract:
Provided is a grease composition comprising a base oil and a thickening agent, in which the aforementioned base oil comprises 40 wt% or more of a synthetic hydrocarbon oil and 20 wt% to 70 wt% of a component (A) with a kinematic viscosity at 40°C of 70mm2/s, the aforementioned base oil has a kinematic viscosity at 40°C from 200mm2/s to 2000mm2/s, and said grease composition has a worked penetration of 220 to 350.
Inventors:
FUJINAMI YUKITOSHI (JP)
Application Number:
PCT/JP2010/060438
Publication Date:
December 29, 2010
Filing Date:
June 21, 2010
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
FUJINAMI YUKITOSHI (JP)
FUJINAMI YUKITOSHI (JP)
International Classes:
C10M169/02; C10M107/02; C10M117/04; C10M117/06; C10M127/00; C10M135/18; F16C33/66; C10N10/02; C10N10/04; C10N20/00; C10N20/02; C10N30/06; C10N40/02; C10N50/10
Foreign References:
| JP2003201492A | 2003-07-18 | |||
| JP2001101943A | 2001-04-13 | |||
| JPS62270698A | 1987-11-25 | |||
| JP2004339245A | 2004-12-02 | |||
| JP2003343581A | 2003-12-03 | |||
| JP2004018725A | 2004-01-22 | |||
| JP2006342359A | 2006-12-21 | |||
| JPH093466A | 1997-01-07 | |||
| JP2007112998A | 2007-05-10 | |||
| JP2001003074A | 2001-01-09 | |||
| JPH05282511A | 1993-10-29 | |||
| JPH07133234A | 1995-05-23 | |||
| JPH01269082A | 1989-10-26 | |||
| JPH03131612A | 1991-06-05 |
Other References:
"Evaluation of Fretting Protection Property of Lubricating Grease Applied to Thrust Ball Bearing", TRIBOLOGISTS, vol. 54, no. I, 2009, pages 64
"Fretting Wear Performance of Lithium 12-Hydroxystearate Greases for Thrust Ball Bearing in Reciprocating Motion", TRIBOLOGISTS, vol. 42, no. 6, 1997, pages 492
See also references of EP 2447348A4
"Fretting Wear Performance of Lithium 12-Hydroxystearate Greases for Thrust Ball Bearing in Reciprocating Motion", TRIBOLOGISTS, vol. 42, no. 6, 1997, pages 492
See also references of EP 2447348A4
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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