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<p>Brinker and Robinson first reported aliphatic polybenzimidazoles in 1949. However the discovery of <a href="page.php?w=Aromaticity">aromatic</a> polybenzimidazole, which shows excellent physical and chemical properties, was generally credited to <a href="page.php?w=Carl_Shipp_Marvel">Carl Shipp Marvel</a> in the 1950s. The Material Laboratory of <a href="page.php?w=Wright_Patterson_Air_Force_Base">Wright Patterson Air Force Base</a> approached Marvel. They were looking for materials suitable for <a href="page.php?w=drogue_parachute">drogue parachute</a>s</p><p>
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