Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ
Patent
1995-05-10
1997-05-13
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
264101, 264216, 264232, 264234, B29C 6720
Patent
active
056289421
ABSTRACT:
Asymmetric TPX porous membranes for gas separation are prepared by wet, and dry/wet phase inversion methods. A casting polymer solution including TPX, a selected solvent and optionally a selected non-solvent, is casted on a support, and within 100 seconds after the casting step, the casted polymer is immersed in a coagulant to form a membrane. The formed membrane is extracted, dried and optionally heat treated.
REFERENCES:
Lai, Juin-Yih, et al. "Polycarbonate/(DMF/Metal Salt) Complex . . . " Eur. Polym. J., vol. 30, No. 7 (1994), pp. 833-843.
Pinnau, Ingo, et al. "Structures and Gas Separation . . . " Journal of Applied Polymer Science, vol. 43 (1991), pp. 1491-1502.
Lai, Juin-Yih, et al. "Polycarbonate membrane prepared via . . . " Journal of Membrane Science, vol. 86 (1994), pp. 103-118.
Lai, J.Y., et al. "Preparation of Vinylpyridine . . . " Journal of Applied Polymer Science, vol. 32 (1986) pp. 5763-5775.
Lai, J.Y., et al. "TPX/Siloxane Blend Membrane . . . " Journal of Applied Polymer Science, vol. 34 (1987) pp. 559-569.
Lai, J.Y., et al. "MMA/TPX Homograft Membrane . . . " Journal of Applied Polymer Science, vol. 37 (1989) pp. 2907-2919.
Lai Juin-Yih
Lin Fung-Ching
National Science Council
Tentoni Leo B.
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