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.
|
申请公布号 |
US4305796(A) |
申请公布日期 |
1981.12.15 |
申请号 |
US19800186629 |
申请日期 |
1980.09.12 |
申请人 |
INTERNATIONAL HARVESTER COMPANY |
发明人 |
GAGLIANI, JOHN;LEE, RAYMOND;WILCOXSON, ANTHONY L. |
分类号 |
C08L79/08;C08G73/00;C08G73/10;G03F7/038;(IPC1-7):C08G18/14;C08G63/40 |
主分类号 |
C08L79/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|