Polyurethane
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Polyurethane is a class of polymers composed of organic units joined by carbamate links. In contrast to other common polymers such as polyethylene and polystyrene, polyurethane refers to a group of po
A kitchen sponge made of polyurethane foam
Otto Bayer in 1952 demonstrating his creation
Open-flame test. Top: untreated polyurethane foam burns vigorously. Bottom: with fire-retardant treatment.
Plastic household items
Spandex
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Spandex, Lycra, or elastane is a synthetic fiber known for its exceptional elasticity. It is a polyether-polyurethane copolymer that was invented in 1958 by chemist Joseph Shivers at DuPont.
Polyurethane
…leading to many different applications. These include rigid and flexible foams, and coatings, adhesives, electrical potting compounds, and fibers such as spandex and polyurethane laminate (PUL). Foams are the largest application accounting for 67% of all polyurethane produced in 2016. A polyurethane is typically…
Elastic material used in the fabrics of a summer cycling attire comprising a jersey, bib shorts and gloves
Colourless spandex yarn
Black dyed spandex yarn
A United States Air Force Academy hurdler in a uniform