n.
Trademarked name of poly-para-phenylene terephthalamide, a nylonlike polymer first produced by Du Pont in 1971.
Kevlar can be made into strong, tough, stiff, high-melting fibres, five times stronger per weight than steel; it is used in radial tires, heat-or flame-resistant fabrics, bulletproof clothing, and fibre-reinforced composite materials for aircraft panels, boat hulls, golf-club shafts, and lightweight bicycles.