Solute-separating membrane

Details Solute-separating membrane Solute-separating membrane

1975-12-19

1978-01-10

Spear, Jr., Frank A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 23F, 210500M, B01D 1300, B01D 3900, B01D 3914

Patent

active

040678040

ABSTRACT:
A solute-separating membrane consisting of a polyoxadiazole series resin containing at least one of the structural units of formulae: ##STR1## wherein Ar and Ar' are same or different multivalent aromatic residues, and R is an alkyl, cycloalkyl or aralkyl group having from 1 to 7 carbon atoms, and swollen to a swelling degree of 1.7-15 with a swelling agent of water, a solvent miscible with water, or a mixture of water and the solvent has a high separating ability and further has high mechanical strength and chemical and thermal stabilities.

REFERENCES:
patent: 3567632 (1971-03-01), Richter et al.
patent: 3699038 (1972-10-01), Boum
patent: 3738966 (1973-06-01), Studinka et al.
patent: 3886251 (1975-05-01), Sekiguchi et al.

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