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US 2026/0188349 A1Published application
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
AssigneeResonac Corporation
InventorsTakuya UNO, Daisuke YAGYU, Yutaka TANJI, Tatsushi SAITO
Life of this patent
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Abstract
This fluorine-containing ether compound is a fluorine-containing ether compound represented by the following formula: R1—CH2—R2—(CH2—R3—CH2—R2)h—CH2—R4 (z represents 1 or 2. R2 is a perfluoropolyether chain. R1 is Formula (2). R4 is an organic group having 3 to 35 carbon atoms and having 1 to 3 polar groups. R3 is Formula (4).)
Claims13
A fluorine-containing ether compound represented by Formula (1),
- (in Formula (1), z is 1 or 2,
- R2 is a perfluoropolyether chain,
- (z+1) R2's may be the same in part or in whole, or may be different from each other,
- R1 is a branched terminal group having 3 to 35 carbon atoms, which is represented by Formula (2),
- R4 is an organic group having 3 to 35 carbon atoms and having 1 to 3 polar groups, and may be the same as or different from R1,
- R3 is a divalent linking group represented by Formula (4), and
- in a case where z is 2, two R3's may be the same as or different from each other)
- (in Formula (2), R5 and R6 are organic groups which do not include a secondary hydroxy group and a tertiary hydroxy group and include one primary hydroxy group, and may be the same as or different from each other, and
- x is an integer of 0 to 3),
- (in Formula (4), h is an integer of 1 to 3, and i is an integer of 1 to 3).
7 more elements
Dependencies are inferred from the claim text.