Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2005-09-14
2008-10-21
Szekely, Peter (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S342000, C524S343000, C524S344000, C524S345000, C524S346000, C524S348000, C524S351000, C524S352000, C524S353000
Reexamination Certificate
active
07439291
ABSTRACT:
A solvent-resistant polymeric membrane comprising a solvent-inert polymer having a solubility parameter greater than 18 (J/cm3)0.5, such as a polyketone, a polyether ketone, polyarylene ether ketone ketone, a polyimide, a polyetherimide, or a polyphenylene sulfide, is described. The solvent-resistant polymeric membrane can be prepared by methods in which solvent-inert polymers form a solution at room temperature.
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Strathmann (26 Desalination 85 (1978).
Kogan Anatoli
Ray Jared Paul
Wang Hua
Yeager Gary William
General Electric Company
Gioeni Mary Louise
Szekely Peter
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