Invention Grant
- Patent Title: Composite polyamide membrane derived from aromatic monomer including anhydride and sulfonyl halide functional groups
- Patent Title (中): 衍生自芳族单体的复合聚酰胺膜包括酸酐和磺酰卤官能团
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Application No.: US14197866Application Date: 2014-03-05
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Publication No.: US08999449B2Publication Date: 2015-04-07
- Inventor: Mou Paul , Tina L. Arrowood , Duane R. Romer
- Applicant: Dow Global Technologies LLC
- Applicant Address: US MI Midland
- Assignee: Dow Global Technologies LLC
- Current Assignee: Dow Global Technologies LLC
- Current Assignee Address: US MI Midland
- Agent Edward W. Black
- Main IPC: B05D1/34
- IPC: B05D1/34 ; B05D1/36 ; B01D71/56 ; B01D69/12 ; B05D3/10
Abstract:
A method for making a composite polyamide membrane including 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 method is characterized by: i) conducting the interfacial polymerization in the presence of an aromatic anhydride monomer include at least one sulfonyl halide functional group, or ii) applying the aromatic anhydride monomer to the thin film polyamide layer.
Public/Granted literature
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