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US 5,674,969 AGranted
Rigid rod polymer based on pyridobisimidazole
AssigneeAkzo Nobel N.V.
InventorsDoetze Jakob Sikkema, Vadim Leonidovich Lishinsky
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Abstract
A rigid rod polymer in which at least 50% of the recurring groups correspond to the formula; ##STR1## Included in the invention are processes for preparation of the above rigid rod polymer and using such polymer as well as compositions employing the above rigid rod polymer.
Claims19
A rigid rod polymer in which at least 50% of the recurring groups correspond to the formula:
- ##STR4##
Dependencies are inferred from the claim text.