Preparation of polyphenylene ether resins

Details Preparation of polyphenylene ether resins Preparation of polyphenylene ether resins

1980-08-04

1983-05-24

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528212, 528217, C08G 6544

Patent

active

043851673

ABSTRACT:
An improved method for the preparation of polyphenylene oxides is disclosed. The method comprises using a diamine catalyst system comprising a cupric compound, coupling the phenolic monomer in the absence of methanol, and adding a promoter to the reaction mixture.

REFERENCES:
patent: 3306875 (1967-02-01), Hay
patent: 3544515 (1970-12-01), Katchman et al.
patent: 3544516 (1970-12-01), Katchman et al.
patent: 3787362 (1974-01-01), Bennett et al.
patent: 3796689 (1974-03-01), Bennett et al.
patent: 4058504 (1977-11-01), Yonemitsu et al.
patent: 4211857 (1980-07-01), Sugio et al.

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