Ultra-low profile multidentate lubricant for use as a sub-nanometer thick lubricant layer for magnetic media
US9466322B2 · kind B2 · utility
7Cited by
11References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2014 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Apr 6, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/8408
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a lubricant includes a multidentate perfluoropolyether having a chemical structure of: Re—Rz—Ri—Rz—Ri—Rz—Re, where Rz includes at least one perfluoroethyl ether unit, and where Re and Ri each include at least one functional group configured to attach to a surface. According to another embodiment, the aforementioned lubricant may be suitable for use in a sub-nanometer thick lubricant layer for various applications, and particularly useful for magnetic recording media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.