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'''Kevlar''' is the registered trade mark of a para-aramid (aromatic polyamide) fiber produced by DuPont. Chemists Stephanie Kwolek and Herbert Blades first synthesized Kevlar in 1965, Kwolek [[patent]]ed the fiber in 1966. Fibers of Kevlar consist of long [[molecule|molecular]] chains produced from '''poly-paraphenylene terephthalamide'''. The chains are highly oriented with strong interchain bonding, which results in a unique combination of properties, including:

'''Kevlar''' is the registered trade mark of a para-aramid (aromatic polyamide) fiber produced by DuPont. Chemists Stephanie Kwolek and Herbert Blades first synthesized Kevlar in 1965, and Kwolek [[patent]]ed the fiber in 1966. Fibers of Kevlar consist of long [[molecule|molecular]] chains produced from '''poly-paraphenylene terephthalamide'''. The chains are highly oriented with strong interchain bonding, which results in a unique combination of properties, including:

*high tensile strength at low weight (five times stronger than the same weight of [[steel]])  

*high tensile strength at low weight (five times stronger than the same weight of [[steel]])  

*low electrical conductivity  

*low electrical conductivity  

*high chemical resistance  

*high chemical resistance