Invention Grant
- Patent Title: Lubricant oil composition, internal combustion engine, and method for using lubricant oil composition
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Application No.: US17906207Application Date: 2021-03-12
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Publication No.: US12091630B2Publication Date: 2024-09-17
- Inventor: Akinori Yomogita
- Applicant: Idemitsu Kosan Co., Ltd.
- Applicant Address: JP Chiyoda-ku
- Assignee: Idemitsu Kosan Co., Ltd.
- Current Assignee: Idemitsu Kosan Co., Ltd.
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP 20045634 2020.03.16
- International Application: PCT/JP2021/010103 2021.03.12
- International Announcement: WO2021/187372A 2021.09.23
- Date entered country: 2022-09-13
- Main IPC: C10M145/14
- IPC: C10M145/14 ; C10M101/00 ; C10M133/16 ; C10M169/04 ; C10N10/06 ; C10N20/00 ; C10N20/02 ; C10N20/04 ; C10N30/00 ; C10N30/02 ; C10N30/04 ; C10N40/25
Abstract:
A lubricating oil composition containing a base oil (A), a comb-shaped polymer (B), and an olefin-based copolymer (C), wherein a content of the component (B) is more than 0.80 mass % based on the total amount of the lubricating oil composition, a weight average molecular weight of the component (C) is 500,000 or more, and the lubricating oil composition has a viscosity index of 200 or more and a kinematic viscosity at 100° C. of 9.3 to 11.0 mm2/s.
Public/Granted literature
- US20230122943A1 LUBRICANT OIL COMPOSITION, INTERNAL COMBUSTION ENGINE, AND METHOD FOR USING LUBRICANT OIL COMPOSITION Public/Granted day:2023-04-20
Information query
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