Title:
LUBRICANT COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2018/034189
Kind Code:
A1
Abstract:
Provided is a lubricant composition containing a base oil (A) that contains a polyalkylene glycol (A1) and a polyol ester (A2), a phosphorus-based anti-rust agent (B), and an antioxidant (C) that contains an amine-based antioxidant (C1). This lubricant composition can be suitably used in turbomachinery, compressors, hydraulic equipment, and machine tools due to having a strong effect for suppressing sludge sedimentation even when used for an extended period of time in a high-temperature environment, and having exceptional demulsibility and anti-rust properties.
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Inventors:
AOKI SHINJI (JP)
HIRAKAWA SHOTA (JP)
HIRAKAWA SHOTA (JP)
Application Number:
PCT/JP2017/028616
Publication Date:
February 22, 2018
Filing Date:
August 07, 2017
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M169/04; C10M137/04; C10M137/08; C10M105/38; C10M107/34; C10M133/12; C10N20/00; C10N30/00; C10N30/12; C10N40/08; C10N40/30
Domestic Patent References:
| WO2013146805A1 | 2013-10-03 | |||
| WO2008038571A1 | 2008-04-03 |
Foreign References:
| JP2016104858A | 2016-06-09 | |||
| JP2010537003A | 2010-12-02 | |||
| JPH1135964A | 1999-02-09 | |||
| JP2008239763A | 2008-10-09 | |||
| JP2015189888A | 2015-11-02 | |||
| JP2011162774A | 2011-08-25 |
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
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