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Patent Searching and Data


Title:
LUBRICANT COMPOSITION AND METHOD FOR PRODUCING LUBRICANT COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2016/159041
Kind Code:
A1
Abstract:
Provided is a lubricant composition which contains (A) a sulfur-based antioxidant and (B) an amine-based antioxidant together with a base oil, and which satisfies the conditions (I) and (II) described below. Condition (I): The total content of sulfur atoms and nitrogen atoms is 0.010-0.600% by mass based on the total mass of the lubricant composition. Condition (II): The content ratio of sulfur atoms to nitrogen atoms, namely (sulfur atoms)/(nitrogen atoms) is 0.45-20.00 in terms of mass ratio. This lubricant composition has excellent stability with respect to oxidation, which enables suppression of negative effects of oxidation degradation due to a long period of use such as increase in the acid value and the kinematic viscosity, increase of sludge, and adhesion of the sludge to a devices, a filter or the like.

Inventors:
SATO TOKUE (JP)
Application Number:
PCT/JP2016/060301
Publication Date:
October 06, 2016
Filing Date:
March 30, 2016
Export Citation:
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Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M141/08; C10M129/10; C10M133/12; C10M135/00; C10M137/10; C10N10/04; C10N20/02; C10N20/04; C10N30/10; C10N40/30
Foreign References:
JP2014118534A2014-06-30
JPH09176671A1997-07-08
JPS5226506A1977-02-28
JPH0386796A1991-04-11
JP2005290181A2005-10-20
JP2009235226A2009-10-15
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
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