Mixed matrix membranes

Details Mixed matrix membranes Mixed matrix membranes

2006-09-19

2006-09-19

Johnson, Jonathan (Department: 1725)

Catalyst, solid sorbent, or support therefor: product or process

In form of a membrane

C502S064000, C502S077000

Reexamination Certificate

active

07109140

ABSTRACT:
Mixed matrix membranes are prepared from zeolites and polymers, such as polyimides, in a void free fashion where either no voids or voids of less than several Angstroms are present at the interface of the polymer and the zeolite by bonding (hydrogen, ionic, or covalent) functional groups on the zeolite with functional groups on the polymer. The mixed matrix membranes may be cast or formed by ISAM processes, and may be present on a variety of supports including hollow fibers.

REFERENCES:
patent: 6159542 (2000-12-01), Kondo et al.
patent: 6248682 (2001-06-01), Thompson et al.
patent: 6387269 (2002-05-01), Eltner et al.
patent: 6500233 (2002-12-01), Miller et al.
patent: 6536604 (2003-03-01), Brinker et al.
patent: 2003/0089227 (2003-05-01), Hasse et al.
patent: 2004/0062909 (2004-04-01), Tsapatsis et al.

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