1. Kevlar
By: Hannah Badger & Ryan Ross
Intro into Engineering
6th hour

2. Original Invention
• Stephanie Kwolek invented Kevlar in 1965
when working with high performance
chemicals at DuPont company.
• It is made with light para-aramid synthetic
fiber.
• Compared to steel by weight, it is 5 times
stronger.
• Kwolek’s patent for Kevlar was granted in
1974.

3. Timeline
• 1965 ~ Kevlar was made
• 1971 ~ Kevlar was mass produced
• 1978 ~ Kevlar was introduced to the
U.S. army as body armor and helmets
(army is one of the biggest buyers of Kevlar)

4. Changes in Kevlar
• The making of Kevlar hasn’t changed a lot.
• Thechanges would be altering it for different
needs.
• Ex: Kevlar Correctional
• Kevlar Correctional is Kevlar altered to stop
something sharp from stabbing you.
• Officers working in jails use this in case an
inmate has gotten a hold of something that
can stab them.

5. Uses
• The making of Kevlar hasn’t changed much
but what it is used for has changed
– Cryogenics
– Armor (bullet proof vests)
– Personal protection
– Shoes & socks
– Audio equipment
– Smartphone
– Ect.

6. Society
• Whether you know this or not, Kevlar is in
Kevlar in tires. is infor public use.
a ton of Kevlar
things this Motorola Droid!
Kevlar is in sport accessories.

7. Kevlar also protects the people
that protect you.
Military Body
gear Firefighter gear
Tactical Vests