Gas separation membrane with ultrathin layer

Details Gas separation membrane with ultrathin layer Gas separation membrane with ultrathin layer

1990-08-30

1992-11-03

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 16, B01D 5322

Patent

active

051603535

ABSTRACT:
This invention is a gas separation membrane containing two polymer layers, a relatively thick layer, and an ultrathin layer, 10 to about 200 A thick. The ultrathin layer polymer is more selective than the polymer used in the thick layer. Also provided is a process for making such membranes.

REFERENCES:
patent: 4230463 (1980-10-01), Henis et al.
patent: 4279855 (1981-07-01), Ward, III
patent: 4374891 (1983-02-01), Ward, III
patent: 4493714 (1985-01-01), Ueda et al.
patent: 4528004 (1985-07-01), Makino et al.
patent: 4631075 (1986-12-01), Yamabe et al.
patent: 4755299 (1988-07-01), Bruschke
patent: 4758251 (1988-07-01), Swedo et al.
patent: 4767422 (1988-08-01), Bikson et al.
patent: 4813983 (1989-03-01), Nohmi et al.
patent: 4851014 (1989-07-01), Jeanes
patent: 4871378 (1989-10-01), Pinnau
patent: 4881954 (1989-11-01), Bikson et al.
patent: 4900626 (1990-02-01), Fabre
patent: 4925459 (1990-05-01), Rojey et al.
patent: 4933082 (1990-06-01), Yamada et al.
patent: 4960519 (1990-10-01), Pasternak et al.
patent: 4961855 (1990-10-01), Reale, Jr. et al.
patent: 4963165 (1990-10-01), Blume et al.
Cabasso et al., "Research and Development of NS-1 and Related Polysulfone Hollow Fiber for Reverse Osmosis Desalination of Seawater", NTIS PB-248666, Jul., 1975, Abstract.
W. J. Koros et al., J. Appli. Polym. Sci., vol. 21, 2899-2904, (1977), "Effect of Pressure on CO.sub.2 Transport in Poly(ethylene Terephthalate)".
W. J. Koros et al., Prog. Polym. Sci., vol. 13, 339-401, 1988, "Polymeric Membrane Materials for Solution-Diffusion Based Permeation Separations".
H. G. Elias, "Theta Solvents", pp. VII/205-VII/207, Polymer Handbook, third edition, John Wiley & Sons, 1989, J. Brandrup et al., editors.
O. Fuchs, "Solvents and Non-Solvents for Polymers", pp. VII/379-VII/380, Polymer Handbook, Third Edition, John Wiley & Sons, 1989, J. Brandrup et al., editors.
Henis et al., Sep. Sci & Technology, 15(4), pp. 1059-1068, 1980, "A Novel Approach to Gas Separations Using Composite Hollow Fiber Membranes".
K. A. Lundy et al., Ind. Eng. Chem. Res., vol. 28, No. 6, Jun. 1989, pp. 742-756.

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