Semi-continuous process for synthesis of polybenzazole polymers

Details Semi-continuous process for synthesis of polybenzazole polymers Semi-continuous process for synthesis of polybenzazole polymers

1991-03-01

1993-06-15

Michl, Paul R.

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

Synthetic resins

From sulfur-containing reactant

524417, 524706, 528183, 528185, 528271, 528377, 528378, 528406, 528408, 528423, C08G 7532, C08G 7306

Patent

active

052199819

ABSTRACT:
Polybenzazole polymers can be synthesized rapidly in large quantities at high molecular weight and high concentration by a two-step process of forming oligomers in a batch reactor and advancing the molecular weight of the polymer in an extruder.

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