Interfacially synthesized reverse osmosis membrane

Details Interfacially synthesized reverse osmosis membrane Interfacially synthesized reverse osmosis membrane

1986-09-11

1988-07-19

Hruskoci, Peter

Liquid purification or separation

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Material

21050038, 4283159, 428420, B01D 1304

Patent

active

047583436

ABSTRACT:
An interfacially synthesized reverse osmosis membrane comprising a microporous substrate and an ultra-thin membrane covering the substrate, wherein the ultra-thin membrane comprises a crosslinked piperazine polyamide as a main component and contains a constituent component represented by the following general formula (1): ##STR1## wherein R stands for --H or --CH.sub.3 and n is an integer of from 0 to 3.

REFERENCES:
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patent: 4214994 (1980-07-01), Kitano et al.
patent: 4242208 (1980-12-01), Kawaguchi et al.
patent: 4259183 (1981-03-01), Cadotte
patent: 4619767 (1986-10-01), Kamiyama et al.
J. E. Cadotte et al., Research on In Situ-Formed Condensation Polymer for Reverse Osmosis Membranes, pp. 10-17, PB-288387, MRI Report, Mar. 1978.
Continued Evaluation of In Situ-Formed Condensation Polymers for Reverse Osmosis Membranes, Midwest Research Institute, J. E. Cadotte, Apr. 1976 (PB-253 193).
Advanced Poly(Piperazineamide) Reverse Osmosis Membranes, J. E. Cadotte, 1979, (PB-80-127574).

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