| 发明名称 |
Crosslinkable rigid-rod benzobisazole polymers |
| 摘要 |
There are provided crosslinkable, para-ordered aromatic heterocyclic polymers having repeating groups of the following formula <IMAGE> <IMAGE> wherein Y is -O-, -S-, or -NH-, n is 1 or 2, and R is an alkyl group having 1 to 4 carbon atoms. In polymers having two pendant R groups, the R groups can be the same or different.
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| 申请公布号 |
US5001217(A) |
申请公布日期 |
1991.03.19 |
| 申请号 |
US19890379039 |
申请日期 |
1989.07.13 |
| 申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE |
发明人 |
TSAI, TSU-TZU;ARNOLD, FRED E. |
| 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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| 地址 |
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