Process for the manufacture of thin film composite membranes

Details Process for the manufacture of thin film composite membranes Process for the manufacture of thin film composite membranes

1991-02-04

1993-11-02

Lawrence, Evan

Coating processes

Foraminous product produced

Microporous coating

21050038, 427340, 427341, B05D 310, B05D 500

Patent

active

052582035

ABSTRACT:
The disclosed invention is directed to the manufacture of high-flux, thin-film, composite reverse osmosis membranes by use of cyclohexane or aliphatic hydrocarbon solvents such as hexane with selected solvent additives. This avoids the use of chlorofluorocarbon-based solvents.

REFERENCES:
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patent: 4259183 (1981-03-01), Cadotte
patent: 4360434 (1982-11-01), Kawaguchi et al.
patent: 4559139 (1985-12-01), Uemura et al.
patent: 4606943 (1986-08-01), Rak et al.
patent: 4659475 (1987-04-01), Liao et al.
patent: 4737325 (1988-04-01), Kamiyama et al.
patent: 4761234 (1988-08-01), Uemura et al.
patent: 4828708 (1989-05-01), Bray
Noller, C. R., "Chemistry of Organic Compounds,"3rd edition, Philadelphia, W. B. Saunders Company, 1965, pp. 991-992.
Mason, J. P. et al., "The Technology of Plastics and Resins," New York, D. Van Nostrand Company, Inc., 1945, p. 7.

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