Patent ID: 11898117
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  G | IPC C  G

Claim 13:
14. The lubricant of claim 1, wherein Rb1, and Rb2 when present, comprises the formula:
(iv) —CF2CF2CF2O(CF2CF2CF2CF2O)aCF2CF2CF2—;
(v) —CF2CF2O(CF2CF2CF2O)aCF2CF2—;
(vi) —CF2CF2O[CF(CF3)CF2O]aCF2CF2—;
(vii) —CF2O(CF2CF2O)a(CF2O)bCF2—;
(viii) —CF2O(CF2CF2O)aCF2—;
or a combination thereof;
wherein each a is, independently from 1 to 20, and
wherein each b, when present, is independently from 1 to 20.