Membranes
AssigneeYeda Research and Development Co. Ltd.
InventorsOra Kedem, Abraham Kedem, Menashe Lev, Gerald B. Tanny, Rami Messalem
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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.
Claims15
A membrane unit for use in electrodialysis comprising a sheet having an area constituting an active ion exchange membrane and a region surrounding said active membrane area, said surrounding area being of thermoplastic heat-sealable material, both said areas being integral parts of the same sheet.
Dependencies are inferred from the claim text.