Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
AssigneeResonac Corporation
InventorsYutaka TANJI, Kohei SAGA
Life of this patent
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Abstract
Provided is a fluorine-containing ether compound represented by the following formula. R1—CH2—R2[—CH2—R3—CH2—R2]x—CH2—R4 (x represents 1 or 2, R2 represents a perfluoropolyether chain, R3 represents a divalent linking group having one to four polar groups, each R1 and R4 represents an end group having one to four polar groups and having 1 to 50 carbon atoms, at least one of R1 or R4 represents —O—X—CH(OH)—CH2OH (X represents a divalent organic group having 2 to 30 carbon atoms, which may have at least one of one or two polar groups or one to three ether oxygen atoms, and X has at least one carbon atom which is not bonded to either the polar groups or the ether oxygen atoms.)
Claims15
A fluorine-containing ether compound which is represented by Formula (1),
- (in Formula (1), x represents an integer of 1 or 2;
- R2 represents a perfluoropolyether chain;
- (x+1) pieces of R2's may be partially or entirely the same as or different from each other;
- R3 represents a divalent linking group having one to four polar groups;
- two R3's may be the same as or different from each other in a case where x represents 2;
- R1 and R4 represent an end group having one to four polar groups and 1 to 50 carbon atoms;
- R1 and R4 may be the same as or different from each other;
- and at least one of R1 or R4 represents an end group represented by Formula (2)),
- (in Formula (2), X represents a divalent organic group having 2 to 30 carbon atoms, which may have at least one of one or two polar groups or one to three ether oxygen atoms;
- and X has at least one carbon atom which is not bonded to either the polar groups or the ether oxygen atoms).
Dependencies are inferred from the claim text.