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US 5,312,895 AGranted
Benzobisazole copolymer system soluble in aprotic solvents
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorsThuy D. Dang, Fred E. Arnold
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Abstract
Para-ordered aromatic heterocyclic polymers having repeating units of the formula: ##STR1## wherein n has a value of 0.05 to 1.00 and Q is a benzobisazole of the formula ##STR2## wherein X is --S-- or --O--, are soluble in aprotic solvents.
Claims6
A para-ordered aromatic heterocyclic polymer consisting essentially of repeating units of the formula:
- ##STR6## wherein n has a value of 0.05 to 1.00 and Q is a benzobisazole of the formula ##STR7## wherein X is --S-- or --O--.
Dependencies are inferred from the claim text.