Patent ID: 6211327
Filing Date: 2001-04-03
Classification: C08G

Abstract:
A process to produce a polyphenylene ether resin having an intrinsic viscosity between about 0.08 dl/g and 0.16 dl/g when measured in chloroform at 25.degree. C., said process comprising oxidative coupling in a reaction solution at least one monovalent phenol species using an oxygen containing gas and a complex metal catalyst to produce a polyphenylene ether resin having an intrinsic viscosity within the range of about 0.08 dl/g to about 0.16 dl/g as measured in chloroform at 25.degree. C.; recovering the complex metal catalyst with an aqueous containing solution and isolating the polyphenylene ether resin through devolatilization of the reaction solvent.