发明名称 |
Methods of preparing polyimides and artifacts composed thereof |
摘要 |
Methods of converting essentially unpolymerized precursors into polyimides in which the precursors are exposed to microwave radiation. Preheating, thermal post-curing, and other techniques may be employed to promote the development of optimum properties; and reinforcements can be employed to impart strength and rigidity to the final product. Also disclosed are processes for making various composite artifacts in which non-polymeric precursors are converted to polyimides by using the techniques described above.
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申请公布号 |
US4361453(A) |
申请公布日期 |
1982.11.30 |
申请号 |
US19810262520 |
申请日期 |
1981.05.11 |
申请人 |
INTERNATIONAL HARVESTER COMPANY |
发明人 |
GAGLIANI, JOHN;LEE, RAYMOND;WILCOXSON, ANTHONY L. |
分类号 |
B29C44/12;C08G73/10;C08J9/00;C08J9/02;C08J9/34;(IPC1-7):B32B5/18 |
主分类号 |
B29C44/12 |
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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