发明名称 |
Process for the production of polyquinazolone-based polymers |
摘要 |
A process for the production of polyquinazolone-based polymers by reacting bisquinazolone with a diamine or a diamine substituted with a carboxylic acid, sulfonic acid or metal salt thereof in the presence of a Lewis acid catalyst or a phosphorus-containing dehydrating agent, where the polymers are useful to produce permselective membranes.
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申请公布号 |
US4354017(A) |
申请公布日期 |
1982.10.12 |
申请号 |
US19810277429 |
申请日期 |
1981.06.25 |
申请人 |
NITTO ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
ABE, MASAO;ICHINOSE, HISASHI;NODA, YUZURU |
分类号 |
C08G73/00;B01D71/62;C08G73/06;(IPC1-7):C08G69/40;C08G69/12 |
主分类号 |
C08G73/00 |
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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