1. Composite reverse osmosis and nanofiltration membranes;Petersen;J. Membr. Sci.,1991
2. J.E. Cadotte, Interfacially synthesized reverse osmosis membrane, US Patent 4,277,344 (1981).
3. H. Hachisuka, K. Ikeda, Reverse osmosis composite membrane, US Patent 6,026,968 (2000).
4. J.E. Tomaschke, Interfacially synthesized reverse osmosis membrane containing an amine salt and processes for preparaing the same, US Patent 4,872,984 (1989).
5. R.F. Fibiger, J.Y. Koo, D.J. Firgach, R.J. Petersen, D.L. Schmidt, R.A. Wessling, T.F. Stocker, Novel polyamide reverse osmosis membranes, US Patent 4,859,384 (1989).