Controlled pore glass-synthetic resin membrane

Details Controlled pore glass-synthetic resin membrane Controlled pore glass-synthetic resin membrane

1996-02-21

1999-05-18

Seidleck, James J.

Liquid purification or separation

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Material

2105021, 21050026, 2101982, 210656, 523219, B01D39/00;39/14;71/26

Patent

active

059048484

ABSTRACT:
Particulate inorganic pore material, e.g., controlled pore glass (CPG) embedded porous synthetic resin membrane is prepared by mixing inorganic pore material and an aqueous resin, preferably polytetrafluoroethylene (PTFE), aqueous dispersion to form a paste-like mass, heating the mass at a temperature between 50 to 70.degree. C., and forming the mass into a sheet by calendering. The sheet is then sintered to produce a rigid porous sheet. The membrane may be functionalized, as by silanization. The membrane is useful for the same purposes as controlled pore glass or functionalized controlled pore glass.

REFERENCES:
patent: 4153661 (1979-05-01), Ree et al.
patent: 4373519 (1983-02-01), Errede et al.
patent: 4609383 (1986-09-01), Bonaventura et al.
patent: 4923901 (1990-05-01), Koester et al.
patent: 4971736 (1990-11-01), Hagen et al.
patent: 5158680 (1992-10-01), Kawai et al.

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