Process for making polyphenylene oxides

Details Process for making polyphenylene oxides Process for making polyphenylene oxides

1976-01-23

1978-06-27

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C08G 6544

Patent

active

040974626

ABSTRACT:
A novel process is described for the preparation of polyphenylene oxide resin composition. The process is based on the precipitation of a polyphenylene oxide resin that has been prepared by the oxidative coupling of a phenol in the presence of a manganese (II).omega.-hydroxyoxime chelate catalyst by a procedure that entrains the catalyst in the polyphenylene oxide resin.

REFERENCES:
patent: 3220979 (1965-11-01), McNiels
patent: 3306875 (1967-02-01), Hay
patent: 3956242 (1976-05-01), Olander
patent: 3972851 (1976-08-01), Olander

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