Methods of preparing polyimides and artifacts composed thereof

Details Methods of preparing polyimides and artifacts composed thereof Methods of preparing polyimides and artifacts composed thereof

C - Chemistry, Metallurgy

08

L

403/58, 154/89,

C08L 79/08 (2006.01) C08G 73/10 (2006.01) C08J 3/28 (2006.01) C08J 9/02 (2006.01)

Patent

CA 1213099

METHODS OF PREPARING POLYIMIDES AND ARTIFACTS COMPOSED THEREOF ABSTRACT OF THE DISCLOSURE 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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