Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
US11220649B2 · kind B2 · utility
6Cited by
1References
8Claims
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Key dates
| Filing date | Dec 4, 2017 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Dec 22, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/023
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fluorine-containing ether compound represented by Formula (1) is provided; R1—R2—CH2—R3—CH2—R4—R5 (1) (In Formula (1), R1 and R5 may be the same as or different from each other and each represents an alkenyl group having 2 to 8 carbon atoms or an alkynyl group having 3 to 8 carbon atoms, R2 and R4 may be the same as or different from each other and each represents a divalent linking group having a polar group, and R3 represents a perfluoropolyether chain, with a proviso that R1 and R2 are, and R4 and R5 are divided due to the presence of an atom other than the carbon atom such as an oxygen atom).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.