Process for producing polyphenylene ether

Details Process for producing polyphenylene ether Process for producing polyphenylene ether

1985-11-20

1986-10-14

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, 528218, C08G 6544

Patent

active

046173722

ABSTRACT:
Polyphenylene ethers are produced by oxidative polymerization of phenols in the presence of a catalyst comprising the combination of divalent manganese salts, an oxine or derivatives thereof, an alkanolamine, and an alkaline compound. This catalyst has an increased polymerization activity and achieves a higher productivity. In addition, the catalyst enables the polymerization to conduct at relatively high temperatures.

REFERENCES:
patent: 3134753 (1964-05-01), Kwiatek
patent: 3313776 (1967-04-01), Borman
patent: 3442885 (1969-05-01), Wieden et al.
patent: 3491058 (1970-01-01), Taylor et al.
patent: 4184034 (1980-01-01), Olander

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