| 发明名称 |
COMPOSITE POLYAMIDE MEMBRANE WITH CARBOXYLIC ACID FUNCTIONALITY |
| 摘要 |
A thin film composite polyamide membrane including a porous support and a thin film polyamide layer which is a reaction product of m-phenylene diamine (mPD) and trimesoyl chloride (TMC), wherein the membrane is characterized by the thin film polyamide layer having a dissociated carboxylic acid content of at least 0.18 moles/kg at pH 9.5, and wherein pyrolysis of the thin film polyamide layer at 650 C results in a ratio of responses from a flame ionization detector for fragments produced at 212 m/z and 237 m/z of less than 2.8. |
| 申请公布号 |
US2015157990(A1) |
申请公布日期 |
2015.06.11 |
| 申请号 |
US201314407362 |
申请日期 |
2013.07.03 |
| 申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
Roy Abhishek;Arrowood Tina L.;Badami Anand S.;Cieslinski Robert C.;Gerhart Bruce B.;Hawn David D.;Jons Steven D.;Paul Mou;Peery Martin H.;Qiu XiaoHua sam;Rickard Mark A.;Rosenberg Steven;Tomlinson Ian A.;Zu Cheng Li |
| 分类号 |
B01D71/56;B01D69/12 |
主分类号 |
B01D71/56 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A thin film composite polyamide membrane comprising a porous support and a thin film polyamide layer comprising a reaction product of m-phenylene diamine (mPD) and trimesoyl chloride (TMC), wherein the membrane is characterized by the thin film polyamide layer having a dissociated carboxylic acid content of at least 0.18 moles/kg at pH 9.5, and wherein pyrolysis of the thin film polyamide layer at 650° C. results in a ratio of responses from a flame ionization detector for fragments produced at 212 m/z and 237 m/z of less than 2.8. |
| 地址 |
Midland MI US |
