GREASE COMPOSITION AND MECHANICAL PART
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Jun 7, 2012
app pub date -
Aug 10, 2010
filing date -
Aug 10, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
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US Family Size
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Non-US Coverage
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Abstract
The invention provides a grease composition containing a base oil, a thickener and an additive, characterized in that the base oil has a kinetic viscosity at 40° C. of 50 to 200 mm2/s; the thickener contains a diurea compound represented by formula (I): R1—NHCONH—R2—NHCONH—R3 (wherein R2 is a divalent aromatic hydrocarbon group having 6 to 15 carbon atoms, and R1 and R3, which may be the same or different, represent cyclohexyl group or a straight-chain or branched alkyl group having 8 to 22 carbon atoms); and the additive is at least one selected from the group consisting of a metal salt of naphthenic acid, a salt of a fatty acid having 6 to 10 carbon atoms and an aliphatic amine having 6 to 10 carbon atoms, and a metal salt of an organic sulfonic acid. The composition of the invention shows excellent anti-fretting properties under the conditions of ordinary temperature to low temperature (e.g., −50° C., preferably about −40° C.).
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| JP | A | JP2011037975 | Aug 10, 2009 |
| KR | A | KR20120042743 | Aug 10, 2010 |
| CN | A | CN102471718 | Aug 10, 2010 |
| EP | A1 | EP2465916 | Aug 10, 2010 |
| WO | A1 | WO2011019028 | Aug 10, 2010 |
International Classification(s)
- 2010 Application Filing Year
- C10M Class
- 250 Applications Filed
- 207 Patents Issued To-Date
- 82.81 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 8 Citation Count
- C10M Class
- 9.00 % this patent is cited more than
- 13 Age