Solubility of perfluorinated polyethers in fluorinated solvents

Details Solubility of perfluorinated polyethers in fluorinated solvents Solubility of perfluorinated polyethers in fluorinated solvents

2007-07-24

2007-07-24

Jagannathan, Vasu (Department: 1714)

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Heterocyclic ring compound; a heterocyclic ring is one...

C508S304000, C508S582000

Reexamination Certificate

active

10693176

ABSTRACT:
Methods of improving the solubility of highly functionalized polar perfluorinated polyethers in fluorinated solvents are described. In preferred embodiments, the ratio of solubilizer to fluorinated solvent is the azeotropic ratio. The solubilizer can be an alcohol or cyclic ether. The methods finds utility in hard disc drive applications, where perfluorinated polyethers are used as lubricants. Compositions are also provided.

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