Stabilization of poly (ether ketone ketones)

Details Stabilization of poly (ether ketone ketones) Stabilization of poly (ether ketone ketones)

C - Chemistry, Metallurgy

08

G

402/33

C08G 67/00 (2006.01) C08K 5/14 (2006.01)

Patent

CA 2023940

Poly(ether ketone ketones), which are important engineering resins, are thermally stabilized by being contacted far at least 15 minutes above their glass transition temperature with an organic hydroperoxide containing at least 0.1 mg of active oxygen per gram, having a boiling point above about 130°C, and degradable between 130°C and the contacting temperature, the hydroperoxide being made from a precursor comprising at least one benzylic or allylic hydrogen in its molecule.

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