Materials

9 patents

Vulcanized Rubber

Materials1800 to 1899

Goodyear spent years obsessed with gum elastic, accidentally finding sulfur-heat curing around 1839 and patenting vulcanization in...

Bessemer Process

Materials1800 to 1899

Bessemer patented the converter that blasted air through molten pig iron, burning impurities and making steel cheaply at scale. Wi...

Bakelite

Materials1900 to 1945

Belgian-American chemist Baekeland patented phenol-formaldehyde resin, the first plastic not derived from plants or animals. Bakel...

Nylon

Materials1900 to 1945

Carothers' polyamide research at DuPont yielded nylon 6,6, patented 1938 after his death by suicide in 1937. Stockings introduced ...

Teflon

Materials1900 to 1945

Plunkett opened a tetrafluoroethylene cylinder in 1938 to find it empty, the gas having polymerized into white wax. PTFE was inert...

Velcro

Materials1946 to 1975

De Mestral, walking his dog through Alpine burrs in 1941, wondered why they clung, then spent a decade replicating hooks and loops...

Cyanoacrylate Adhesive

Materials1946 to 1975

Coover rejected cyanoacrylates in 1942 as ruined gun-sight plastics, then recognized their instant bonding in 1951 heat-resistant ...

Kevlar

Materials1946 to 1975

Kwolek's 1965 liquid-crystal spinning solution looked cloudy and wrong, but she insisted on spinning it, yielding para-aramid fibe...

Gore-Tex

Materials1976 to 2000

Bob Gore yanked heated PTFE instead of pulling it slowly, discovering expanded nodes-and-fibrils microstructure in 1969. The 1976 ...