Invention Grant
- Patent Title: Fluorine-containing ether compound, lubricant for magnetic recording medium and magnetic recording medium
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Application No.: US16470713Application Date: 2017-11-24
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Publication No.: US11332686B2Publication Date: 2022-05-17
- Inventor: Naoya Fukumoto , Yuta Yamaguchi , Naoko Ito , Katsumi Murofushi
- 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: JPJP2016-247157 20161220
- International Application: PCT/JP2017/042189 WO 20171124
- International Announcement: WO2018/116742 WO 20180628
- Main IPC: C10M107/38
- IPC: C10M107/38 ; C08G65/331 ; G11B5/725 ; C10N40/18
Abstract:
A fluorine-containing ether compound represented by formula (1) shown below. R4—CH2—R3—CH2—R2—CH2—R1—CH2—R2—CH2—R3—CH2—R4 (1) (In formula (1), R1 and R3 represent different perfluoropolyether chains, R2 represents a linking group containing one or more polar groups, and R4 represents a terminal group containing two or more polar groups.)
Public/Granted literature
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