The development of aromatic polyamides changed dramatically in good direction with the discovery of lyotropic liquid crystalline aramid. Aramid fiber first commercial applications appear in the early 1960s. Stephanie Kwolek did great work while working at DuPont in 1961. It took a long time to figure out how to make anything useful out of aramid (because it wouldn’t dissolve in anything,) but finally, the company introduced the para-aramid fiber with the brand name “Kevlar”. For her great invention of Kevlar, Stephanie Kwolek was inducted on July 1995 into the United States Inventor’s Hall of Fame.