Title:
LUBRICANT COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2022/075085
Kind Code:
A1
Abstract:
Provided is a lubricant composition containing: (A) a lubricant base oil having a kinematic viscosity of 6.0-12.0 mm2/s at 40°C; (B) less than 100 ppm by mass of a Ca sulfonate detergent and/or a Ca salicylate detergent in terms of the Ca quantity; (C) less than 200 ppm by mass of a phosphorous acid ester compound in terms of the P quantity; (D) at most 300 ppm by mass of a nitrogen-containing ashless dispersant in terms of the N quantity; and (E) 0.1-1.0 mass% of an amine-based antioxidant and a phenol-based antioxidant in a total quantity thereof, wherein a ratio P/Ca of the total P content of the composition with respect to the total Ca content thereof is 1.7-4.7 and the kinematic viscosity is 1.8-4.0 mm2/s at 100ºC.
Inventors:
MATSUOKA MAYUKO (JP)
MASUDA KOHEI (JP)
AYAME NORIKO (JP)
YAMADA TETSUYA (JP)
MASUDA KOHEI (JP)
AYAME NORIKO (JP)
YAMADA TETSUYA (JP)
Application Number:
PCT/JP2021/035037
Publication Date:
April 14, 2022
Filing Date:
September 24, 2021
Export Citation:
Assignee:
ENEOS CORP (JP)
International Classes:
C10M129/10; C10M171/02; C10M133/12; C10M133/16; C10M133/56; C10M135/36; C10M137/02; C10M145/14; C10M159/22; C10M159/24; C10N10/04; C10N20/02; C10N20/04; C10N30/00; C10N30/06; C10N40/00; C10N40/04
Domestic Patent References:
| WO2017159363A1 | 2017-09-21 |
Foreign References:
| JP2016003258A | 2016-01-12 | |||
| JP2006063248A | 2006-03-09 | |||
| JP2018065923A | 2018-04-26 | |||
| JP2018048281A | 2018-03-29 |
Attorney, Agent or Firm:
YAMAMOTO, Noriaki et al. (JP)
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