Heterocyclic-coupled polymers of polyphenylene oxides

Details Heterocyclic-coupled polymers of polyphenylene oxides Heterocyclic-coupled polymers of polyphenylene oxides

1977-06-20

1979-06-19

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, C08G 6544, C08G 6548

Patent

active

041587286

ABSTRACT:
Heterocyclic-coupled linear, branched and/or crosslinked polymers of polyphenylene oxides are described which comprise poly-functional heterocyclic radicals coupled with mono- and/or polyphenoxy radicals derived from (a) polyphenylene oxides having an average hydroxyl group per molecule value greater than zero including 1.0 or less, or (b) polyphenylene oxide-quinone coupled polymers having an average hydroxyl group per molecule value greater than zero including 2.0 or less, and mixtures thereof.

REFERENCES:
patent: 3297639 (1967-01-01), Picklesimer et al.
patent: 3733302 (1973-05-01), Klebe et al.
patent: 3753946 (1973-08-01), Holub et al.
patent: 3773718 (1973-11-01), Klebe et al.
patent: 3978028 (1976-08-01), Sundermann et al.

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