Substituted aliphatic polyamide porous membranes

Details Substituted aliphatic polyamide porous membranes Substituted aliphatic polyamide porous membranes

1986-07-18

1987-05-26

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

2105002, 21050038, 210654, 21050038, 521 64, 521184, 521189, C08J 936

Patent

active

046687068

ABSTRACT:
Aliphatic thermoplastic polyamide porous membranes are reacted with an acid halide of basicity above one to provide acid radicals within the membrane. The acid halide may be derived from an aromatic carboxylic acid or an aromatic derivative of a chlorosilane. The substituted aliphatic polyamide porous membrane lend themselves to the preparation of chemical derivatives of the membrane which are not readily available by aqueous synthesis and to increased density of derivatives which otherwise may be prepared by water.

REFERENCES:
patent: 3904519 (1975-09-01), McKinney, Jr. et al.
patent: 4613625 (1986-09-01), Ford

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