| 发明名称 |
Rigid-rod benzobisazole polymer containing cyclic phosphate ester |
| 摘要 |
Rigid-rod aromatic heterocyclic polymers having repeating units of the formula: <IMAGE> wherein Ba is a benzobisazole moiety of the formula: <IMAGE> wherein X is -O-, -S- or -NH.
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| 申请公布号 |
US5200495(A) |
申请公布日期 |
1993.04.06 |
| 申请号 |
US19920887000 |
申请日期 |
1992.05.22 |
| 申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE |
发明人 |
ARNOLD, FRED E.;CHEN, JOM P. |
| 分类号 |
C08G73/06;C08G73/18;C08G73/22;C08G75/32 |
主分类号 |
C08G73/06 |
| 代理机构 |
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代理人 |
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| 主权项 |
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