Title:
LUBRICANT OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2017/130777
Kind Code:
A1
Abstract:
Provided is a lubricant oil composition containing a base oil (A) and an amine antioxidant (B), wherein the component (B) contains phenyl-naphthylamine (B1), alkylphenyl-naphthylamine (B2), and di(alkylphenyl)amine (B3), the contained amount of the component (B1) is 2.0-10.0 mass% with respect to a total of 100 mass% of the component (B), the contained amount of the component (B2) is 40.0-90.0 mass% with respect to a total of 100 mass% of the component (B), and the contained amount of the component (B3) is 8.0-50.0 mass% with respect to a total of 100 mass% of the component (B). The lubricant oil composition is long-lasting and maintains excellent oxidative stability even when being used in a high-temperature environment for a long period of time, and also has an excellent sludge inhibition effect.
Inventors:
AOKI SHINJI (JP)
TORII HIDENORI (JP)
TORII HIDENORI (JP)
Application Number:
PCT/JP2017/001274
Publication Date:
August 03, 2017
Filing Date:
January 16, 2017
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M169/04; C10M101/02; C10M133/12; C10M137/04; C10N30/00; C10N30/04; C10N30/10; C10N40/00; C10N40/02; C10N40/04; C10N40/08; C10N40/12; C10N40/25; C10N40/30
Domestic Patent References:
| WO2013146805A1 | 2013-10-03 |
Foreign References:
| JP2008013687A | 2008-01-24 | |||
| JP2002528559A | 2002-09-03 | |||
| JPH07252489A | 1995-10-03 |
Other References:
See also references of EP 3409750A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
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