发明名称 |
COMPOSITE POLYAMIDE MEMBRANE POST TREATED WITH NITROUS ACID |
摘要 |
A method for making a composite polyamide including the steps of: i) applying a polar solution comprising a polyfunctional amine monomer and a non-polar solution comprising a polyfunctional acyl halide monomer to a surface of a porous support and interfacially polymerizing the monomers to form a thin film polyamide layer; ii) treating the thin film polyamide layer with a polyfunctional arene compound; and iii) exposing the thin film polyamide layer to nitrous acid; wherein the non-polar solutions further comprises at least one of the following: (A) at least 50 vol% of a C5 to C20 aliphatic hydrocarbon and from 2 to 25 vol% of benzene or benzene substituted with one or more C1 to C6 alkyl groups; and (B) an acid-containing monomer comprising a C2-C20 hydrocarbon moiety substituted with at least one carboxylic acid functional group or salt thereof and at least one amine-reactive functional group. |
申请公布号 |
WO2015175256(A1) |
申请公布日期 |
2015.11.19 |
申请号 |
WO2015US29137 |
申请日期 |
2015.05.05 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
PAUL, MOU;TOMLINSON, IAN, A.;ROY, ABHISHEK |
分类号 |
B01D67/00;B01D69/12;B01D71/56 |
主分类号 |
B01D67/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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