Title:
LUBRICANT COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2020/095943
Kind Code:
A1
Abstract:
[Problem] To provide a supercharged engine lubricant composition which is capable of exhibiting a good balance of caulking resistance, LSPI suppression capability, and high temperature cleanability. [Solution] This supercharged engine lubricant composition comprises (A) a lubricant base oil, (B) 1100 to 1900 mass ppm of a calcium-based detergent in terms of calcium based on the total amount of the lubricant composition, (C) a magnesium-based detergent, (D) at least one viscosity index improver selected from a styrene-diene copolymer and an ethylene-α-olefin copolymer, and (E) a nitrogen-containing dispersant, wherein the nitrogen content is 700 mass ppm or more based on the total amount of the lubricant composition.
Inventors:
HOSHINO KOJI (JP)
KUSUHARA SHINTARO (JP)
MUTOU AKIO (JP)
MATSUDA HIROMITSU (JP)
KUSUHARA SHINTARO (JP)
MUTOU AKIO (JP)
MATSUDA HIROMITSU (JP)
Application Number:
PCT/JP2019/043464
Publication Date:
May 14, 2020
Filing Date:
November 06, 2019
Export Citation:
Assignee:
JXTG NIPPON OIL & ENERGY CORP (JP)
International Classes:
C10M161/00; C10M129/54; C10M133/00; C10M137/06; C10M139/00; C10M143/00; C10M143/10; C10N20/02; C10N30/08; C10N40/25
Domestic Patent References:
| WO2016159216A1 | 2016-10-06 |
Foreign References:
| JP2015163673A | 2015-09-10 | |||
| JP2014210844A | 2014-11-13 | |||
| JPH10147790A | 1998-06-02 | |||
| JP2003155492A | 2003-05-30 | |||
| JP2015163673A | 2015-09-10 |
Other References:
See also references of EP 3878931A4
Attorney, Agent or Firm:
NAGAI Hiroshi et al. (JP)
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