Method of producing polyphenylene oxides using morpholinium brom

Details Method of producing polyphenylene oxides using morpholinium brom Method of producing polyphenylene oxides using morpholinium brom

1983-05-23

1984-01-31

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528212, 528214, 528215, 528217, C08G 6544

Patent

active

044291060

ABSTRACT:
A high molecular-weight polyphenylene oxide is produced by the oxidative coupling of a diortho-substituted phenol in the presence of a copper amine complex and an activator of morpholinium bromide and an alkali metal hydroxide or alkaline earth hydroxide.

REFERENCES:
patent: 3642699 (1972-02-01), Cooper et al.
patent: 3733299 (1973-05-01), Cooper et al.
patent: 3796689 (1974-03-01), Bennett et al.
patent: 4028341 (1977-06-01), Hay
patent: 4092294 (1978-05-01), Bennett, Jr. et al.

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