Environmentally friendly method for poly(phenylene ether) polyme

Details Environmentally friendly method for poly(phenylene ether) polyme Environmentally friendly method for poly(phenylene ether) polyme

1994-08-10

1997-04-15

Acquah, Samuel A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528214, 528216, 528217, C08G 6538

Patent

active

056210663

ABSTRACT:
An environmentally friendly process is provided for the preparation of poly(phenylene ether) resin by oxidatively coupling at least one monovalent phenol using an oxygen containing gas and a complex copper (I) amine catalyst as the oxidizing agent and extracting the copper catalyst with an aqueous containing solution as a copper (II)-organic acid salt, an improvement which comprises reduction and recovery of the copper (II) species as a copper (I) species for regeneration of the complex copper (I) amine catalyst.

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