| 发明名称 |
Crosslinked copolymers of aliphatic polyester diols and dianhydrides |
| 摘要 |
A crosslinked copolymer composition is derived from an aliphatic polyester, a dianhydride and a diisocyanate. The copolymer membrane has high thermal stability and good aromatic/saturate selectivity and permeability. |
| 申请公布号 |
US4997906(A) |
申请公布日期 |
1991.03.05 |
| 申请号 |
US19900504141 |
申请日期 |
1990.04.03 |
| 申请人 |
EXXON RESEARCH & ENGINEERING COMPANY |
发明人 |
THALER, WARREN A.;HO, W. S. W.;SARTORI, GUIDO |
| 分类号 |
B01D61/36;B01D71/54;B01D71/80;C07C7/144;C08G18/42;C08G63/20;C10G31/11 |
主分类号 |
B01D61/36 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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