Sealing assembly for a solid polymer ion exchange membrane

Details Sealing assembly for a solid polymer ion exchange membrane Sealing assembly for a solid polymer ion exchange membrane

1997-11-04

1999-08-31

Chen, Vivian

Stock material or miscellaneous articles

Sheet facing and longitudinally noncoextensive with web or...

428 81, 428195, 428198, 428201, 4283044, 4283055, 4283066, 4283084, 4283105, 4283171, 4283173, 4283184, 4283193, 428421, 428422, 204518, 204520, 204521, 204536, 204630, 204632, 204636, 277945, 277946, B32B 514, B32B 518, B32B 2704, B32B 2708

Patent

active

059451920

ABSTRACT:
An assembly consisting of at least one seal layer and a solid polymer ion exchange layer wherein the seal layer covers essentially only the region of the ion exchange layer which is to be sealed. The seal layer is made of porous polytetrafluoroethylene film having one surface coated and partially impregnated with a solid polymer ion exchange material. The seal layer provides support and masking functions for the solid polymer ion exchange layer during intermediate manufacturing steps, and reinforcement and effective sealing when assembled in an electrochemical apparatus.

REFERENCES:
patent: 4056452 (1977-11-01), Campbell
patent: 5082472 (1992-01-01), Mallouk et al.
patent: 5547551 (1996-08-01), Bahar et al.

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