Title:
LUBRICATING OIL COMPOSITION, AND LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINES
Document Type and Number:
WIPO Patent Application WO/2021/149323
Kind Code:
A1
Abstract:
With respect to this lubricating oil composition, a glycerol dioleate ester and a glycerol trioleate ester exhibit extremely high solubility in a synthetic oil and are able to be added without any limitation, while being capable of forming a lubricant oil film on a metal surface and preventing metals from coming close to each other. Consequently, this lubricating oil composition has excellent lubrication performance and enables improvement of fuel efficiency by lowering the coefficient of friction without deteriorating the other characteristics of existing internal combustion engine oils. In addition, this lubricating oil composition is able to prevent wear of a friction surface, thereby having an effect of improving the lubrication performance and the like. A lubricating oil composition which is characterized by containing a base oil and one or more fatty acids selected at least from among glycerol difatty acid esters and glycerol trifatty acid esters, and which is also characterized in that the fatty acids are contained in the lubricating oil composition in an amount of from 0.1 to 10.0% by mass.
Inventors:
OOTSUKI SHUUJIROU (JP)
MATSUEDA HIRONOBU (JP)
MATSUEDA HIRONOBU (JP)
Application Number:
PCT/JP2020/041275
Publication Date:
July 29, 2021
Filing Date:
November 05, 2020
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C10M169/04; C10M107/02; C10M129/74; C10M129/76; C10M135/18; C10M137/10; C10N10/12; C10N30/06; C10N40/02; C10N40/04; C10N40/08; C10N40/12; C10N40/25; C10N40/30
Foreign References:
| JP2007146090A | 2007-06-14 | |||
| JP2015521685A | 2015-07-30 | |||
| JPH08176579A | 1996-07-09 | |||
| JP2000169871A | 2000-06-20 | |||
| JP2005307202A | 2005-11-04 | |||
| JP2005082709A | 2005-03-31 |
Attorney, Agent or Firm:
OGAWA Shinji (JP)
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