发明授权
- 专利标题： Polyimide/aliphatic polyester copolymers
- 专利标题（中）： 聚酰亚胺/脂肪族聚酯共聚物
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申请号： US422385申请日： 1989-10-16
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公开(公告)号： US4944880A公开(公告)日： 1990-07-31
- 发明人: W. S. Winston Ho , Guido Sartori , Warren A. Thaler , David C. Dalrymple
- 申请人： W. S. Winston Ho , Guido Sartori , Warren A. Thaler , David C. Dalrymple
- 申请人地址： NJ Florham Park
- 专利权人： Exxon Research and Engineering Company
- 当前专利权人： Exxon Research and Engineering Company
- 当前专利权人地址： NJ Florham Park
- 主分类号： B01D71/48
- IPC分类号： B01D71/48 ; B01D61/36 ; B01D71/64 ; B01D71/80 ; C07C7/144 ; C08G73/16
摘要：
A new copolymer composition comprising the hard segment of a polyimide and the soft segment of an oligomeric aliphatic polyester. The new polyimide copolymer membranes have exhibited high thermal stability for separation of an aromatic/saturate mixture. These new membranes have higher aromatic/saturate selectivity than polyurethanes.
公开/授权文献
- US5658851A Lipophilic siloxanes as adjuvants for agriculture 公开/授权日：1997-08-19
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