Chargedasymmetric mosaic membrances

Details Chargedasymmetric mosaic membrances Chargedasymmetric mosaic membrances

1991-12-03

1994-04-19

Kight, III, John

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21050027, 21050029, 21050034, 21050037, 21050038, 21050039, 2105004, 21050041, 21050043, 210651, B01D 1300

Patent

active

053043073

ABSTRACT:
The present invention relates to semipermeable mosaic polymer membranes of asymmetric structure and with a macroscopic distribution of the mosaic-forming anionic and cationic charges (sites). The membranes can be prepared by casting a polymer solution of an optionally charged matrix-forming polymer and at least one precursor polymer, incompatible with the matrix-forming polymer, in a selected solvent, into a film, forming a skin on one side of the film, precipitating the skinned film to form the asymmetric membrane and charging it by chemical reactions to introduce or complete their mosaic structure. These membranes have good permeability for electrolytes, such as salts of mono- or polyvalent inorganic acids, while retaining low molecular weight organic solutes.

REFERENCES:
patent: 3886066 (1975-05-01), Chen et al.
patent: 4067803 (1978-01-01), Quentin
patent: 4514304 (1985-04-01), Miyaki et al.
patent: 4778596 (1988-10-01), Linder et al.
patent: 4792404 (1988-12-01), Swedo et al.
patent: 4992221 (1991-02-01), Malon et al.
patent: 5024765 (1991-06-01), Linder et al.
patent: 5049282 (1991-09-01), Lindes et al.
"Journal of Membrane Science", 43(2/3), 205-216 (May 1989).
"Journal of Membrane Science", 54(1/2), 75-87 (Nov. 1990).

Affiliated with

Also associated with

Rating

Chargedasymmetric mosaic membrances does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chargedasymmetric mosaic membrances, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chargedasymmetric mosaic membrances will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-17922