Invention Grant
- Patent Title: Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
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Application No.: US16480464Application Date: 2017-12-04
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Publication No.: US11220649B2Publication Date: 2022-01-11
- Inventor: Naoya Fukumoto , Daisuke Yagyu , Yuta Yamaguchi , Shoko Uetake , Tsuyoshi Kato , Hiroyuki Tomita , Ryuuta Miyasaka , 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: JPJP2017-012345 20170126
- International Application: PCT/JP2017/043451 WO 20171204
- International Announcement: WO2018/139058 WO 20180802
- Main IPC: C10M105/54
- IPC: C10M105/54 ; C07C43/178 ; G11B5/725 ; C08G65/331 ; C10M107/38 ; C10N20/04 ; C10N30/06 ; C10N50/00 ; C10N40/18

Abstract:
A fluorine-containing ether compound represented by Formula (1) is provided; R1—R2—CH2—R3—CH2—R4—R5 (1) (In Formula (1), R1 and R5 may be the same as or different from each other and each represents an alkenyl group having 2 to 8 carbon atoms or an alkynyl group having 3 to 8 carbon atoms, R2 and R4 may be the same as or different from each other and each represents a divalent linking group having a polar group, and R3 represents a perfluoropolyether chain, with a proviso that R1 and R2 are, and R4 and R5 are divided due to the presence of an atom other than the carbon atom such as an oxygen atom).
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