US 11,279,664 B2 · Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium

Abstract

The present invention relates to a fluorine-containing ether compound represented by Formula (1), R1—R2—CH2—R3—CH2—R4 (1). (In Formula (1), R1 is an end group including an organic group having at least one double bond or triple bond, R2 is a divalent linking group bonded to R1 by etheric oxygen, R3 is a perfluoropolyether chain, R4 is 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.)

Claims10

Dependent claims

A fluorine-containing ether compound represented by Formula (1),

R1—R2—CH2—R3—CH2—R4 (1)
(in Formula (1), R1 is an end group including an organic group having at least one double bond or triple bond and is any one of an end group including an aromatic ring, an end group including a heterocyclic ring, an end group including an alkenyl group, and an end group including an alkynyl group, R2 is a divalent linking group bonded to R1 by etheric oxygen, R3 is a perfluoropolyether chain, R4 is an end group of any one of Formula (2-1) to (2-4)
(in Formula (2-1), p1 represents 1 to 2, and p2 represents 1 to 5)
(in Formula (2-2), s represents 2 to 5)
(in Formula (2-3), t represents 1 to 5)
(in Formula (2-4), q represents 2 to 5).

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/082,349Filed 30 Jan 2017

Priority

JP JP2016-04735910 Mar 2016

Published

US 2019/0084911 A121 Mar 2019

Granted

22 Mar 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification22 codes

C07C 43/23
Having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring: containing hydroxy or O-metal groups
C07C 43/1786
Containing hydroxy or O-metal groups: containing halogen
C07D 277/24
With only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms: radicals substituted by oxygen…
C07D 303/26
With polyhydroxy compounds: having one or more free hydroxyl radicals

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

Life of this patent

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

Life of this patent

Abstract

Claims10