Invention Grant
- Patent Title: Method for inspecting lubricating oil composition and method for producing lubricating oil composition
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Application No.: US16769085Application Date: 2018-12-04
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Publication No.: US11220652B2Publication Date: 2022-01-11
- Inventor: Ryuji Monden , Yu Gao , Masumi Kuritani , Kunio Kondo
- Applicant: SHOWA DENKO K.K.
- Applicant Address: JP Tokyo
- Assignee: SHOWA DENKO K.K.
- Current Assignee: SHOWA DENKO K.K.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JPJP2017-234587 20171206
- International Application: PCT/JP2018/044552 WO 20181204
- International Announcement: WO2019/111889 WO 20190613
- Main IPC: C10M177/00
- IPC: C10M177/00 ; C10M113/02 ; C10M169/02 ; G01N15/02 ; G01N33/28 ; C10N70/00
Abstract:
A method for inspecting a lubricant oil composition containing a base oil and a fullerene, the method including: measuring at least one of a lamellar length of the lubricating oil composition and a most abundant diameter in a particle size distribution obtained by a dynamic light scattering method, and selecting the lubricating oil composition whose measured value is within a set range.
Public/Granted literature
- US20210222083A1 METHOD FOR INSPECTING LUBRICATING OIL COMPOSITION AND METHOD FOR PRODUCING LUBRICATING OIL COMPOSITION Public/Granted day:2021-07-22
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