| 发明名称 |
Ultrathin polyether sulfone polymer films and their preparation |
| 摘要 |
Disclosed herein are free-standing, pinhole-free, ultrathin polyether sulfone films having thicknesses of about 400 angstroms or less and a process for preparing them. The films find particular utility in separatory applications.
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| 申请公布号 |
US4776999(A) |
申请公布日期 |
1988.10.11 |
| 申请号 |
US19860918284 |
申请日期 |
1986.10.10 |
| 申请人 |
HOECHST CELANESE CORPORATION |
发明人 |
KOHN, RACHEL S. |
| 分类号 |
B29C39/00;B29C41/24;B29C67/24;C08G75/23;C08J5/18;(IPC1-7):B29C41/12 |
主分类号 |
B29C39/00 |
| 代理机构 |
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