Process and catalyst for preparation of polyphenylene oxide

Details Process and catalyst for preparation of polyphenylene oxide Process and catalyst for preparation of polyphenylene oxide

1983-03-11

1984-09-11

Garvin, Patrick

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

528212, B01J 2724, B01J 2372

Patent

active

044710682

ABSTRACT:
Polyphenylene oxides are prepared by the oxidative coupling of monohydroxy aromatic compounds such as 2,6-xylenol in the presence of copper-bromide-amine catalysts in which at least part of the amine component is a diamine such as N,N'diphenylethylendiamine, N,N'-diphenyl-N,N'-dimethylethylene diamine or N,N'-diphenylpiperazine. Other amines preferably present in the catalyst are a tertiary monoamine such as dimethyl-n-butylamine and a secondary monoamine such as di-n-butylamine. The diamines are characterized by a low rate of consumption during polymerization, and the catalysts prepared therefrom are hydrolytically stable.

REFERENCES:
patent: 3306874 (1967-02-01), Hay
patent: 3306875 (1967-02-01), Hay
patent: 3661848 (1972-05-01), Cooper et al.
patent: 3733299 (1973-05-01), Cooper et al.
patent: 3914266 (1975-10-01), Hay
patent: 4028341 (1977-06-01), Hay

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