Aromatic/aliphatic nylon polymer microporous membranes

Details Aromatic/aliphatic nylon polymer microporous membranes Aromatic/aliphatic nylon polymer microporous membranes

1995-05-08

1997-12-02

Fortuna, Ana

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210490, 21050038, 264 41, 264 49, B01D 6100, B01D 3900

Patent

active

056932316

ABSTRACT:
Polyamide (nylon) microporous membranes are prepared from a polyamide (nylon) polymer which contains aromatic rings, aliphatic carbon chains, and amide groups. The membranes exhibit improved long term performance characteristics. The membranes are preferably prepared from a polyamide polymer having the structure: ##STR1##

REFERENCES:
patent: 4340480 (1982-07-01), Pall et al.
patent: 5385672 (1995-01-01), Peterson et al.
patent: 5547575 (1996-08-01), Demmer et al.

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