Quinone-coupled polyphenylene oxides

Details Quinone-coupled polyphenylene oxides Quinone-coupled polyphenylene oxides

1977-05-26

1980-11-18

Lee, Lester L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528125, 528126, 528212, 528218, 260396R, C08G 6544, C08G 6548

Patent

active

042347068

ABSTRACT:
Quinones and polyphenylene oxides are reacted to provide quinone-coupled polyphenylene oxides having an average hydroxyl group per molecule value greater than the average hydroxyl group value associated with polyphenylene oxide reactants. The resulting new polymers have improved color and in combination with styrene resins provide thermoplastic compositions having improved chemical and physical properties.

REFERENCES:
patent: 3290386 (1966-12-01), Stamatoff
patent: 3375228 (1968-03-01), Holoch et al.
patent: 3440290 (1969-04-01), Widiger
patent: 3573254 (1971-03-01), Factor
patent: 3736291 (1973-05-01), Vogel
patent: 3784575 (1974-01-01), Rutledge
patent: 3970640 (1976-07-01), Yonemitsu et al.
patent: 3987068 (1976-10-01), Reilly

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