Title:
GREASE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2023/277044
Kind Code:
A1
Abstract:
The present invention provides a grease composition which contains (A) a base oil, (B) a urea-based thickening agent and (C) a fat or oil curing agent, wherein: particles containing the urea-based thickening agent (B) in the grease composition satisfy requirement (I); the grease composition is liquefied if heated to a certain temperature or higher, and is returned to a solid state if cooled to room temperature after being heated to the certain temperature or higher; and the grease composition is highly responsive to the application of a shear stress, and is likely to be softened when a shear stress is applied thereto. Requirement (I): The area-based arithmetic mean particle diameter of the particles is 2.0 μm or less as determined by a laser diffraction/scattering method.
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Inventors:
WATANABE GO (JP)
Application Number:
PCT/JP2022/025861
Publication Date:
January 05, 2023
Filing Date:
June 29, 2022
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M169/06; C10M115/08; C10N30/00; C10N40/04; C10N50/10
Domestic Patent References:
| WO2020179589A1 | 2020-09-10 | |||
| WO2020179603A1 | 2020-09-10 | |||
| WO2018030090A1 | 2018-02-15 |
Foreign References:
| JP2010209129A | 2010-09-24 | |||
| CN104327917A | 2015-02-04 | |||
| JP2005054008A | 2005-03-03 | |||
| JP2016037554A | 2016-03-22 |
Other References:
"The JOCS Standard Methods for the Analysis of Fats, Oils and Related Materials (I) 1996 edition", JAPAN OIL CHEMISTS' SOCIETY
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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