Modified acrylonitrile polymer containing semipermeable membrane

Details Modified acrylonitrile polymer containing semipermeable membrane Modified acrylonitrile polymer containing semipermeable membrane

1982-03-08

1984-10-16

Henderson, Christopher A.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

2105002, 210767, 5253291, 525349, 525348, 525353, 525380, C08F 834, C08F 830

Patent

active

044776349

ABSTRACT:
Semipermeable membranes of polyacrylonitrile or copolymers of acrylonitrile and other ethylenically unsaturated monomers are chemically modified through reaction with (a) hydroxylamine and (b) a poly functional ionic colorless cyclic carbonic acid imide-halide capable of reaction with amidoxime groups, and optionally containing ionic groups. The new membranes show good compaction and solvent resistance and are stable over a broad temperature and pH range. They are suitable for reverse osmosis and especially ultrafiltration processes.

REFERENCES:
Chemical Abstracts, vol. 83, 11675 p, (1975).
Chemical Abstracts, vol. 83, 207279 g, (1975).

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