Aromatic polymer

Details Aromatic polymer Aromatic polymer

1989-01-18

1990-11-13

Kight, III, John

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, 528128, C08G 802, C08G 6548

Patent

active

049702718

ABSTRACT:
An aromatic polymer comprises divalent aromatic units linked through oxygen, characterized in that some at least of those units are or contain aromatic rings free of electron-withdrawing groups and in that at least one of such rings carries at least one nitrogen radical linked to a nuclear carbon atom by a nitrogen-carbon bond.
Preferably it consists to the extent of at least 75 mol percent by the repeating units:

REFERENCES:
patent: 4530703 (1985-07-01), Malon et al.
patent: 4540737 (1985-09-01), Wissbrun et al.
patent: 4690765 (1987-09-01), Linder et al.
patent: 4690766 (1987-09-01), Linder et al.

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