| 发明名称 |
PREPARATION OF POLYBENZOXAZOLES FROM HALOGENATED POLYAMIDE ANIONS |
| 摘要 |
This invention relates to a process for making polymers containing benzoxazole groups by heating, and thereby dehalogenating, novel anions of orthohalogenated aromatic amide groups of a polyamide. The products are useful as fibers and films. |
| 申请公布号 |
WO9200341(A3) |
申请公布日期 |
1992.02.06 |
| 申请号 |
WO1991US03942 |
申请日期 |
1991.06.10 |
| 申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
BURCH, ROBERT, RAY, JR. |
| 分类号 |
C08G69/48;C08G73/22;(IPC1-7):C08G73/22 |
主分类号 |
C08G69/48 |
| 代理机构 |
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