Microporous support layer with interfacially polymerized copolya

Details Microporous support layer with interfacially polymerized copolya Microporous support layer with interfacially polymerized copolya

1989-04-20

1991-05-14

Spear, Frank

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21050038, B01D 7156

Patent

active

050153820

ABSTRACT:
Copolyamide desalination membranes formed by interfacial polymerization on a microporous support are disclosed. The copolyamide is formed by copolymerization of m-phenylene diamine with cyclohexane-1,3,5-tricarbonyl chloride and any of isophthaloyl chloride, terephthaloyl chloride, alkylene diacyl chlorides containing 4 to 12 carbon atoms, cyclohexane dicarbonyl chlorides and mixtures thereof wherein the average functionality of the acyl chlorides is from 2.20 to 2.80.

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patent: 4828708 (1989-05-01), Bray
patent: 4888116 (1989-12-01), Cadotte et al.

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