Coated membranes

Details Coated membranes Coated membranes

1977-04-25

1981-02-10

Spear, Jr., Frank A.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210490, 210500M, 210650, 210654, 2105002, 427407, B01D 1300

Patent

active

042500290

ABSTRACT:
Novel membranes having two or more coatings of polyelectrolytes with at least one oppositely charged adjacent pair of coatings separated by a neutral layer to reduce charge neutralization, their method of preparation, and use for rejecting ionically charged solutes.

REFERENCES:
patent: 3228877 (1966-01-01), Mahon
patent: 3331772 (1967-07-01), Brownscombe et al.
patent: 3462362 (1969-08-01), Kollsman
patent: 3556305 (1971-01-01), Shorr
patent: 3724672 (1973-04-01), Leonard et al.
patent: 3737042 (1973-06-01), Boom

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