Method of preparing high molecular weight polyphenoxy ethers fro

Details Method of preparing high molecular weight polyphenoxy ethers fro Method of preparing high molecular weight polyphenoxy ethers fro

1977-01-12

1977-12-27

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

252463, 252465, C08G 6544

Patent

active

040654346

ABSTRACT:
An improved method of preparing high molecular weight polyphenoxy ethers from alkyl phenols is disclosed. The method involves contacting a solution of an alkyl phenol in the presence of an alkaline material and an oxygen carrying gas with a catalyst comprising activated or precipitated alumina supporting mixed oxides of manganese, chromium, and copper in which the metals are present in an amount of 5 to 25 percent chromium, 3 to 15 percent copper based on the total weight of the catalyst and in which the weight ratio range of manganese to chromium is 1.9-0.9 to 1. The method may optionally include the use of an amine.

REFERENCES:
patent: 3549670 (1970-12-01), Spousta
patent: 3787358 (1974-01-01), Nishioka et al.

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