Process for preparing polyimide compositions and composite...

Details Process for preparing polyimide compositions and composite... Process for preparing polyimide compositions and composite...

C - Chemistry, Metallurgy

08

G

117/196, 402/219

C08G 73/14 (2006.01) B32B 27/12 (2006.01) C08G 73/10 (2006.01)

Patent

CA 1151343

Abstract of the Disclosure The present invention provides an improvement in a process for preparing polyimide compositions from a mix- ture of monomers by the application of heat in two stages. The improvement comprises incorporating a cyclic peroxyketal catalyst, such as 3,6,6,9,9,-pentamethyl-3-(ethylacetate)- 1,2,4,5-tetraoxycyclononane, into the monomer mixture prior to reaction.

372713

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