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Did you know? Insight - Stephanie Kwolek
Doug Engelbart
Thomas Fogarty
Ashok Gadgil
Stephanie Kwolek
Stephanie Kowlek Biography The most famous application of Kevlar is in bulletproof vests, which are made of layers of fabric woven from strands of the super-strong fiber. Patents In 1964, Stephanie Kwolek investigated a curious chemical solution in her DuPont lab; that polymer eventually became Kevlar, a fiber five times as strong as steel and lighter than fiberglass. Videos In its raw form, Kevlar is simply a fiber. The fibers are woven into textiles (like those used in body armor) or combined with other materials. Interview
Kevlar is used in many aspects of the U.S. space program, both on the Space Shuttle and the International Space Station.

Kevlar is used in many aspects of the U.S. space program, both on the Space Shuttle and the International Space Station.
All of Stephanie Kwolek's patents—issued between 1961 and 1976—are for polymers and ways to make polymers. The patent for Kevlar (or "Wholly aromatic carbocyclic polycarbonate fibers") was applied for in 1971 and granted in 1974.

Select a patent to view patent drawings and information.


Wholly Aromatic Polymers
Patent 3094511, Issued June 18, 1963

Aromatic Polyamides
Patent 3380969, Issued April 30, 1963











Doug Engelbart Thomas Fogarty Ashok Gadgil Stephanie Kwolek Paul MacCready
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