发明名称 |
COMPOSITE POLYAMIDE MEMBRANE |
摘要 |
A method for making a composite polyamide membrane comprising a porous support and a thin film polyamide layer, wherein the method includes the step of applying a polyfunctional amine monomer and polyfunctional acyl halide monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the step of applying the polyfunctional acyl halide monomer to the porous support includes the step of combining the polyfunctional acyl halide monomer with a non-polar solvent at a concentration of at least 0.18 weight percent to form a coating solution which is applied to the surface of the porous support, and wherein the interfacial polymerization is conducted in the presence of a tri-hydrocarbyl phosphate compound which is provided in a molar ratio of at least 0.5:1 with the polyfunctional acyl halide monomer. Many additional embodiments are described including membranes made from the subject method and applications for such membranes. |
申请公布号 |
US2015151255(A1) |
申请公布日期 |
2015.06.04 |
申请号 |
US201314405711 |
申请日期 |
2013.07.03 |
申请人 |
Dow Global Technologies LLC |
发明人 |
Roy Abhishek;Arrowood Tina L.;Cieslinski Robert C.;Stevens Derek M.;Hawn David D.;Jons Steven D.;Paul Mou;Peery Martin H.;Rosenberg Steven;Tomlinson Ian A. |
分类号 |
B01D69/12 |
主分类号 |
B01D69/12 |
代理机构 |
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代理人 |
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主权项 |
1. A method for making a composite polyamide membrane comprising a porous support and a thin film polyamide layer, wherein the method comprises the step of applying a polyfunctional amine monomer and polyfunctional acyl halide monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer,
wherein the step of applying the polyfunctional acyl halide monomer to the porous support comprises the step of combining the polyfunctional acyl halide monomer with a non-polar solvent at a concentration of at least 0.18 weight percent to form a coating solution which is applied to the surface of the porous support, and wherein the interfacial polymerization is conducted in the presence of a tri-hydrocarbyl phosphate compound which is provided in a molar ratio of at least 0.5:1 with the polyfunctional acyl halide monomer. |
地址 |
Midland MI US |