Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
US11820742B2 · kind B2 · utility
2Cited by
1References
20Claims
0Family size
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Key dates
| Filing date | Dec 17, 2020 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Dec 17, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There is provided a fluorine-containing ether compound represented by the following formula. R1—R2—CH2—R3—CH2—OCH2CH(OH)CH2O—CH2—R3—CH2—R4—R5 (in the formula. R3 represents a perfluoropolyether chain; R2 and R4 represent a divalent linking group having a polar group; R1 and R5 represent a terminal group bonded to an oxygen atom of R2 or R4; and at least one of R1 and R5 is any one selected from the group consisting of an alkenyl group having 2 to 8 carbon atoms, an alkynyl group having 3 to 8 carbon atoms, an aromatic hydrocarbon-containing group, and an aromatic heterocycle-containing group).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.