Chemistry: electrical and wave energy – Apparatus – Coating – forming or etching by sputtering
Patent
1988-04-05
1989-04-18
Niebling, John F.
Chemistry: electrical and wave energy
Apparatus
Coating, forming or etching by sputtering
204296, 521 27, 521 32, 521 38, C25B 1308, C25C 704, C08D 202
Patent
active
048224715
ABSTRACT:
This invention is directed to the process and apparatus for making a polymeric membrane containing non-quaternized amine groups, with the polymer having substantially zero amounts of non-polymerized solvents. The resulting membrane is a more efficient anion membrane for recovering acid from acidic solutions by electrodialysis than the corresponding membranes containing quaternized amine groups. The membrane is made by polymerizing a monomeric mixture on a reinforcing cloth structure, which monomeric mixture is void of non-polymerizing solvents.
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Ionics Incorporated
Niebling John F.
Saliba Norman E.
Starsiak John S.
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