Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1975-04-01
1976-11-30
Lee, Lester L.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260583N, C08G 6544, C08G 6546
Patent
active
039948595
ABSTRACT:
A novel process for the separation of catalyst residues from polyphenylene ether reaction systems is disclosed. The process is based on the discovery that an aqueous solution of a water soluble bisulfate will extract a complex copper-amine catalyst from a reaction solution of a polyphenylene ether resin.
REFERENCES:
patent: 3630995 (1971-12-01), Modan
patent: 3783147 (1974-01-01), Calicchia et al.
patent: 3838102 (1974-09-01), Bennett et al.
Floryan Daniel Edwin
Gucz Justin Walter
General Electric Company
Hedman Edward A.
Lee Lester L.
Mufatti William F.
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