Invention Grant
- Patent Title: Lubricant oil composition for internal combustion engine
- Patent Title (中): 内燃机润滑油组成
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Application No.: US12934374Application Date: 2009-03-23
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Publication No.: US08546312B2Publication Date: 2013-10-01
- Inventor: Kazuo Tagawa
- Applicant: Kazuo Tagawa
- Applicant Address: JP Tokyo
- Assignee: JX Nippon Oil & Energy Corporation
- Current Assignee: JX Nippon Oil & Energy Corporation
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JPP2008-078224 20080325
- International Application: PCT/JP2009/055667 WO 20090323
- International Announcement: WO2009/119506 WO 20091001
- Main IPC: C10M135/30
- IPC: C10M135/30 ; C10M135/22 ; C10M113/08
Abstract:
The lubricating oil composition for an internal combustion engine of the invention comprises a lubricating base oil having a urea adduct value of not greater than 4% by mass and a viscosity index of 100 or greater, an ash-free antioxidant containing no sulfur as a constituent element, and at least one compound selected from among ash-free antioxidants containing sulfur as a constituent element and organic molybdenum compounds.
Public/Granted literature
- US20110065618A1 LUBRICANT OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE Public/Granted day:2011-03-17
Information query
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