FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM
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United States of America
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Issued Date -
Nov 21, 2024
app pub date -
Aug 31, 2022
filing date -
Aug 31, 2022
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Abstract
There is provided a fluorine-containing ether compound represented by following formula: R1—R2—CH2—R3[—CH2—R4—CH2R3′]n—CH2—R5—R6 (n is 1 or 2; R3 and R3′ are a perfluoropolyether chain; R4 is a divalent linking group having one polar group; R2 and R5 are a divalent linking group having one or more polar groups; R2 has an oxygen atom at an end that is bonded to R1; R5 has an oxygen atom at an end that is bonded to R6; R1 and R6 in end group bonded to an oxygen atom at an end of R2 or R5; and R1 and R6 are an organic group having 1 to 50 carbon atoms, and at least one of them is a group in which a carbonyl carbon atom or nitrogen atom constituting an amide bond is bonded to a carbon atom of an organic group having 1 to 8 carbon atoms).
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