Hydrophobic membrane materials for filter venting applications

Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ

Reexamination Certificate

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Details

C264S650000, C210S500220, C210S500420, C210S500360

Reexamination Certificate

active

06884375

ABSTRACT:
The present invention relates to filtration media having both hydrophobic (water-repellent) properties. The filtration media are produced using a fluorothermoplastic material, such as a terpolymer of tetrafluoroethylene, vinylidene fluoride, and hexafluoropropylene. The invention also relates to methods of preparing such filtration media using casting solution phase inversion.

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