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US 2020/0263104 A1Published application
Fluorine- containing ether compound, lubricant for magnetic recording medium and magnetic recording medium
AssigneeShowa Denko K.K.
InventorsYuta YAMAGUCHI, Naoya FUKUMOTO, Naoko ITO, Hiroyuki TOMITA, Ichiro OTA, Katsumi MUROFUSHI
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Abstract
A fluorine-containing ether compound represented by a formula (1) shown below. R4—CH2—R3—CH2—R2—CH2—R1—CH2—R2—CH2—R3—CH2—R5 (1) In formula (1), R1 and R3 represent the same or different perfluoropolyether chains, R2 represents a linking group containing at least one polar group, one or both of R4 and R5 represent a terminal group containing two or more polar groups, and R4 and R5 are different.
Claims23
A fluorine-containing ether compound represented by a formula (1) shown below:
- R4—CH2—R3—CH2—R2—CH2—R1—CH2—R2—CH2—R3—CH2—R5 (1)
- wherein R1 and R3 represent identical or different perfluoropolyether chains, R2 represents a linking group containing at least one polar group, one or both of R4 and R5 represent a terminal group containing two or more polar groups, and R4 and R5 are different.
Dependencies are inferred from the claim text.