| 发明名称 |
Chain-extending polyimides with aromatic polyisocyanates |
| 摘要 |
Aromatic polyimides with anhydride end groups are chain-extended (molecular weight increased) by reacting them with aromatic polyisocyanates such as tolylene-2,4-diisocyanate. These polyimides can be shaped and formed prior to chain-extending. Thermally stable, polyimide foams are formed by the reaction.
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| 申请公布号 |
US4026833(A) |
申请公布日期 |
1977.05.31 |
| 申请号 |
US19750558450 |
申请日期 |
1975.03.14 |
| 申请人 |
UNIVERSITY OF NOTRE DAME |
发明人 |
D'ALELIO, GAETANO FRANCIS |
| 分类号 |
C08G18/64;C08G73/10;(IPC1-7):C08G73/10 |
主分类号 |
C08G18/64 |
| 代理机构 |
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代理人 |
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| 地址 |
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