Resonac Corporation

Ayano Asano

Daisuke Yagyu

Tsuyoshi Kato

Naoya Fukumoto

Natsumi Shibata

Katsumi Murofushi

Shunya Suzuki

Yutaka Tanji

Chizuru Kasahara

Takuma Kuroda

The present invention provides a fluorine-containing ether compound represented by the following formula.R—CH—R—CH—R—CH—R—CH—R—CH—R—CH—R(In Formula (1), R, R, and Rare perfluoropolyether chains, Ris Formula (2), Ris Formula (3), and Rand Rare each independently a terminal group having two or three polar groups, in which individual polar groups are bound to different carbon atoms and the carbon atoms to which the polar groups are bound are bound to each other via a linking group containing a carbon atom to which no polar group is bound).

Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium

This fluorine-containing ether compound is represented by formula (1) shown below.R—CH—R—CH—R  (1)

A fluorine-containing ether compound represented by a formula (1) shown below.R—(O(CH))-[A]-[B]—O—CH—R—CH—R  (1)(In the formula (1), Ris an alkyl group which may have a substituent, or an organic group having at least one double bond or triple bond. Further, a represents an integer of 2 to 4, and b is 0 or 1. [A] is represented by a formula (2): —(OCHCH(OH)CH)— (wherein c is 1 or 2). [B] is represented by a formula (3): —(O(CH)CH(OH)CH)— (wherein d is 0 or 1, and e represents an integer of 2 to 4). However, the sum of c in the formula (2) and d in the formula (3) is 2. Ris a perfluoropolyether chain. Ris represented by a formula (4): —(OCHCH(OH)CH)—O—CH(CH)OH (wherein f represents an integer of 2 to 5).

A fluorine-containing ether compound represented by the following formula (1).R—R—CH—R—CH—R  (1)(Ris an organic group having an alicyclic structure having 3 to 13 carbon atoms; Ris represented by the following formula (2), and a in the formula (2) is an integer of 1 to 3; Ris a perfluoropolyether chain; and Ris a terminal group having two or three polar groups, in which individual polar groups bond to different carbon atoms and the carbon atoms to which the polar groups bond are bonded to each other through a linking group having a carbon atom to which the polar groups do not bond.)

There is provided a fluorine-containing ether compound represented by the following formula. R&#x2014;R&#x2014;CH&#x2014;R&#x2014;CH&#x2014;OCHCH(OH)CHO&#x2014;CH&#x2014;R&#x2014;CH&#x2014;R&#x2014;R(in the formula. Rrepresents a perfluoropolyether chain; Rand Rrepresent a divalent linking group having a polar group; Rand Rrepresent a terminal group bonded to an oxygen atom of Ror R; and at least one of Rand Ris any one selected from the group consisting of an alkenyl group having 2 to 8 carbon atoms, an alkynyl group having 3 to 8 carbon atoms, an aromatic hydrocarbon-containing group, and an aromatic heterocycle-containing group).

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Ichihara, Japan

Ayano Asano