Ion-exchange resin membrane and method for producing the same

Details Ion-exchange resin membrane and method for producing the same Ion-exchange resin membrane and method for producing the same

2006-05-02

2006-05-02

Lipman, Bernard (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

C521S030000, C521S031000, C204S252000, C525S353000, C525S368000, C525S369000

Reexamination Certificate

active

07037949

ABSTRACT:
A reactive liquid is coated on an ion exchange resin precursor membrane for the hydrolysis treatment. Preferably, a reactive liquid having a viscosity of not lower than 50 mPa·s or a small surface tension is used. Said precursor membrane is also subjected to the hydrolysis treatment under constraint, while the precursor membrane is maintained in a widened or a stretched state.

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