Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
AssigneeResonac Corporation
InventorNatsumi Shibata
Life of this patent
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Abstract
A fluorine-containing ether compound represented by Formula (1) is provided. R1—O—R2—CH2—R3—CH2—R4—R5 (1) (in the formula, R3 is a perfluoropolyether chain; R1 is an alkenyl group having 2 to 8 carbon atoms or an alkynyl group having 3 to 8 carbon atoms; R2 and R4 are each independently a divalent linking group having one or more hydroxyl groups; and —R5 is a group represented by Formula (2) shown below.) —O—(CH2)g—N—R6R7 (2) (in the formula, g is an integer of 2 or 3; R6 and R7 are the same or different saturated aliphatic groups; and R6 and R7 may form a ring structure together with a nitrogen atom.)
Claims13
A fluorine-containing ether compound represented by Formula (1) shown below,
- R1—O—R2—CH2—R3—CH2—R4—R5 (1)
- (in Formula (1), R3 is a perfluoropolyether chain;
- R1 is an alkenyl group having 2 to 8 carbon atoms or an alkynyl group having 3 to 8 carbon atoms;
- R2 and R4 are each independently a divalent linking group having one or more hydroxyl groups;
- and —R5 is a group represented by Formula (2) shown below),
- —O—(CH2)g—N—R6R7 (2)
- (in Formula (2), g is an integer of 2 or 3;
- R6 and R7 are the same or different saturated aliphatic groups;
- and R6 and R7 do not form a ring structure together with a nitrogen atom).
A fluorine-containing ether compound represented by any of Formulae (A), (B), (E), (F), and (I) shown below,
- (in Formula (A), ma and na indicate average degrees of polymerization, where ma represents 1 to 30, and na represents 0 to 30),
- (in Formula (B), mb and nb indicate average degrees of polymerization, where mb represents 1 to 30, and nb represents 0 to 30),
- (in Formula (E), me indicates an average degree of polymerization, where me represents 0.1 to 30),
- (in Formula (F), mf indicates an average degree of polymerization, where mf represents 0.1 to 30), and
- (in Formula (I), pi indicates an average degree of polymerization, where pi represents 0.1 to 30).
Dependencies are inferred from the claim text.