Two-stage process for continuous preparation of...

Details Two-stage process for continuous preparation of... Two-stage process for continuous preparation of...

C - Chemistry, Metallurgy

08

G

402/359

C08G 65/44 (2006.01)

Patent

CA 1256639

RD-15646 TWO-STAGE PROCESS FOR CONTINUOUS PREPARATION OF POLYPHENYLENE OXIDES Abstract of the Discosure Polyphenylene oxides are prepared by the catalytic reaction of oxygen with a monohydroxyaromatic compound such as 2,6-xylenol in a continuous-flow tubular reactor containing multiple agitated zones. In the case of a copper catalyst system, it is often preferred to pre-mix the non-gaseous constituents of the reaction mixture in an inert atmosphere.

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