Processable polyimides and polyamide-imides

Details Processable polyimides and polyamide-imides Processable polyimides and polyamide-imides

C - Chemistry, Metallurgy

08

G

117/196, 402/216

C08G 73/14 (2006.01) C08L 79/08 (2006.01)

Patent

CA 1045290

Abstract of the Disclosure This invention provides compositions containing (a) a poyimide and polyamido-imide terminated with oleifinic unsaturated end groups, or the corresponding polyamide-acids in combination with a reactive Schiff base compound, and (b) a poyimide and polyamido-imide terminated with a Schiff base end group or tho corresponding polyamide acids in combination with a reactive N,N'-bis-imide. These Schiff bases and N,N'-bis-imide compounds facilitate processing of the prepol?mer resins by lowering the softening temperature under processing conditions, and chain-extend and cross-link the base resins.

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