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Membrane polymer compositions

  • US 7,226,541 B2
  • Filed: 12/16/2003
  • Issued: 06/05/2007
  • Est. Priority Date: 06/20/2001
  • Status: Expired due to Term
First Claim
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1. A membrane comprising:

  • a terpolymer of about 35 wt. % to about 40 wt. % of polyvinylidene fluoride monomer, from about 17 wt. % to about 20 wt. % of hexafluoropropylene monomer, and from about 40 wt. % to about 48 wt. % of tetrafluoroethylene monomer; and

    a hydrophobicity modifying agent.

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