Showa Denko K.k.

Shoko Uetake

Hiroyuki Tomita

Katsumi Murofushi

Naoya Fukumoto

Daisuke Yagyu

Yuta Yamaguchi

Tsuyoshi Kato

Ryuuta Miyasaka

Naoko Ito

Ryuta Miyasaka

Ichiro Ota

A fluorine-containing ether compound represented by Formula (1) is provided.R&#x2014;R&#x2014;CH&#x2014;R&#x2014;CH&#x2014;R&#x2014;R&#x2003;&#x2003;(1)(In Formula (1), Rand Reach represents a group having a heterocyclic ring and may be the same as or different from each other, Rand Reach represents a divalent linking group having a polar group and play be the same as or different from each other, and Rrepresents a perfluoropolyether chain.)

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

The present invention relates to a fluorine-containing ether compound represented by Formula (1),R&#x2014;R&#x2014;CH&#x2014;R&#x2014;CH&#x2014;R&#x2003;&#x2003;(1).(In Formula (1), Ris an end group including an organic group having at least one double bond or triple bond, Ris a divalent linking group bonded to Rby etheric oxygen, Ris a perfluoropolyether chain, Ris an end group having two or three polar groups with each polar group being bonded to different carbon atoms, and the carbon atoms, to which the polar groups are bonded, being bonded to each other via a linking group including carbon atoms to which the polar groups are not bonded.)

A fluorine-containing ether compound represented by Formula (1) is provided;R&#x2014;R&#x2014;CH&#x2014;R&#x2014;CH&#x2014;R&#x2014;R&#x2003;&#x2003;(1)(In Formula (1), Rand Rmay 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, Rand Rmay be the same as or different from each other and each represents a divalent linking group having a polar group, and Rrepresents a perfluoropolyether chain, with a proviso that Rand Rare, and Rand Rare divided due to the presence of an atom other than the carbon atom such as an oxygen atom).

This fluorine-containing ether compound is represented by Formula (1).R&#x2014;R&#x2014;CH&#x2014;R&#x2014;CH&#x2014;R&#x2014;R&#x2003;&#x2003;(1)

A fluorine-containing ether compound of the present invention is represented by Formula (1).R&#x2014;CH&#x2014;R&#x2014;CH&#x2014;R&#x2003;&#x2003;(1) (In Formula (1), Ris an organic end group having 3 or more carbon atoms which includes two or more polar groups with each polar group being bonded to different carbon atoms and the carbon atoms to which the polar groups are bonded being bonded to each other via a linking group including the carbon atoms which are not bonded to the polar groups, Rincludes a perfluoropolyether chain represented by Formula (3), and Ris a hydroxyl group or R)&#x2014;(CF)&#x2014;O&#x2014;((CF)O)&#x2014;(CF)&#x2014;&#x2003;&#x2003;(3) (In Formula (3), y represents an integer of 2 to 4, and z represents an integer of 1 to 30).

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Tokyo, Japan

Shoko Uetake