Title:
LUBRICATING GREASE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2018/030090
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a lubricating grease composition which has a high coefficient of static friction, while maintaining excellent torque characteristics at low temperatures, shear stability at high temperatures and oil separation characteristics at high temperatures.
A lubricating grease composition according to the present invention contains a base oil, a thickening agent and a solid lubricant, and is characterized in that: the solid lubricant is composed of calcium carbonate; the blending amount of the calcium carbonate is 1-60% by weight relative to the total weight of the lubricating grease composition; the calcium carbonate has an average particle diameter of 0.1-30 μm; the base oil has a kinematic viscosity of 18-300 mm2/s at 40°C; and the lubricating grease composition has a worked penetration of 240-320.
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Inventors:
SAWAGUCHI WATARU (JP)
MATSUMOTO KOHEI (JP)
MATSUMOTO KOHEI (JP)
Application Number:
PCT/JP2017/026102
Publication Date:
February 15, 2018
Filing Date:
July 19, 2017
Export Citation:
Assignee:
NOK KLUEBER CO LTD (JP)
International Classes:
C10M125/10; C10M169/06; C10M101/02; C10M105/04; C10M107/02; C10M117/00; C10N10/04; C10N20/00; C10N20/02; C10N20/06; C10N30/00; C10N40/02; C10N40/04; C10N50/10
Foreign References:
| JPH11131086A | 1999-05-18 | |||
| JPH1135963A | 1999-02-09 | |||
| JP2003301190A | 2003-10-21 | |||
| JP2003013083A | 2003-01-15 | |||
| JP2004176774A | 2004-06-24 | |||
| JP2009155443A | 2009-07-16 | |||
| JP2009209179A | 2009-09-17 | |||
| JP2009209180A | 2009-09-17 | |||
| JP2008094991A | 2008-04-24 | |||
| JPH11124591A | 1999-05-11 | |||
| JP2008274091A | 2008-11-13 |
Attorney, Agent or Firm:
EINSEL Felix-Reinhard et al. (JP)
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