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US 12,129,445 B2Granted
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
AssigneeResonac Corporation
InventorsNaoya Fukumoto, Daisuke Yagyu, Tsuyoshi Kato, Katsumi Murofushi
Life of this patent
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Abstract
A fluorine-containing ether compound represented by the following formula (1) is provided. R2—CH2—R1—CH2OCH2CH(OH)—(CH2)n—CH(OH)CH2OCH2—R1—CH2—R2 (1) (in the formula (1), n is an integer of 2 to 6, R1 is a perfluoropolyether chain, R2 is —OCH2CH(OH)CH2O(CH2)mOH (m in the formula is an integer of 2 to 4)).
Claims16
A fluorine-containing ether compound represented by any one of the following formulae (A) to (C),
- in the formula (A), p represents 1 to 30, and q represents 0 to 30,
- in the formula (B), r represents 1 to 30,
- in the formula (C), s represents 1 to 20.
Dependencies are inferred from the claim text.