Membranes
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United States of America Patent
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-
Aug 12, 1980
Grant Date -
N/A
app pub date -
Aug 9, 1978
filing date -
Aug 16, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
According to the present invention there is provided a novel type of membrane unit for use in electrodialysis comprising a heat-sealable frame framing and forming an integral entity with an electrodialysis membrane. The frame may be a regular frame, or a two-frame structure framing a single membrane. The invention further relates to electrodialysis devices such as stacks, bags, cells, spiral units and the like based on such membrane units, which are hermetically bonded by heat-sealing to similar units or to polymeric or other members.
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