Monolayer, composite, gas separation material, filter, gas separation device and method for manufacturing composite
US-12128366-B2 · Oct 29, 2024 · US
Method of manufacturing reverse osmosis membrane, and reverse osmosis membrane manufactured thereby
US8993053B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8993053-B2 |
| Application number | US-201314026783-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 13, 2013 |
| Priority date | May 24, 2012 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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- Title
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Abstract
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There are provided a method of manufacturing a reverse osmosis membrane and a reverse osmosis membrane manufactured thereby. The method includes forming a polysulfone layer by applying a solution including a mixed solvent containing two or more solvents having different solubility parameter values to a surface of a porous support; and forming an active layer on the polysulfone layer.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of manufacturing a reverse osmosis membrane, the method comprising: forming a polysulfone layer by applying a solution including a polymer having a sulfonic acid group and a mixed solvent containing two or more solvents having different solubility parameter values to a surface of a porous support, wherein the mixed solvent includes N,N-dimethylformamide (DMF) and dimethyl sulfoxide (DMSO) mixed in a ratio of 90:10 to 60:40, or N,N-dimethylformamide…
Assignees
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Classifications
Operations & Transport · mapped topic
- B01D71/68Primary
Operations & Transport · mapped topic
- B01D61/025Primary
Operations & Transport · mapped topic
- B05D5/00Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8993053B2 cover?
- There are provided a method of manufacturing a reverse osmosis membrane and a reverse osmosis membrane manufactured thereby. The method includes forming a polysulfone layer by applying a solution including a mixed solvent containing two or more solvents having different solubility parameter values to a surface of a porous support; and forming an active layer on the polysulfone layer.
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification B01D71/68. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).