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

1981-05-11

1982-11-30

Foelak, Morton

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

20415914, 20415919, 521 54, 521185, 521189, 521122, 523219, 524592, 524877, 264 26, 264 453, 264 54, 264338, 264DIG5, B32B 518

Patent

active

043614531

ABSTRACT:
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.

REFERENCES:
patent: 3471444 (1969-10-01), Sherer
patent: 3677921 (1972-07-01), Stivers
patent: 3803103 (1974-04-01), Magay
patent: 4166168 (1979-08-01), D'Alelio

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