O -aminophenol-containing AB-monomer for heterocyclic...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C435S252800, C435S025000

Reexamination Certificate

active

07495106

ABSTRACT:
A novel o-aminophenol-carboxylic AB-monomer with the following chemical structure:for synthesizing new rigid-rod polybenzobisazoles was prepared from the corresponding nitrobenzothiazolecarboxylic acid via an enzymatic process.

REFERENCES:
patent: 7364881 (2008-04-01), Nadeau et al.
patent: WO 2007032296 (2007-03-01), None
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