Who invented Kevlar (poly-paraphenylene terephthalamide), which has been used for decades to keep many first responders safe? Stephanie Kwolek invented Kevlar, also known as poly-paraphenylene terephthalamide, which is a synthetic polymer known for its high strength. It is used in protective gear like bulletproof vests. Kevlar is five times stronger than steel on an equal weight basis. Stephanie discovered Kevlar during her work on polymer research at DuPont, while she was aiming to create lightweight yet strong fibers for automobile tires. This discovery has improved safety for many people in different situations.
