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polyurethanes

polyurethanes (pŏl´ēyŏŏr´əthānz), group of plastics that may be either thermosetting or thermoplastic. Polyurethane can be made into both flexible and rigid foams. The flexible foam is often used in furniture and automobile cushions, in mattresses, and for carpet backings. The rigid foam is used for the thermal insulation of refrigerators, trucks, and buildings. In the furniture industry the rigid foam is molded into mirror frames, chair shells, and other parts that were formerly made from wood. Some polyurethanes are highly elastic materials that are resistant to chemical attack and to abrasion. They are used in such things as solid rubber tires and shoe heels. Lycra, a fiber used in stretch clothing, is a polyurethane. Polyurethanes are also used as decorative and protective coatings, exhibiting high gloss, hardness, and toughness.

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"polyurethanes." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 26 Jul. 2017 <http://www.encyclopedia.com>.

"polyurethanes." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (July 26, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/polyurethanes

"polyurethanes." The Columbia Encyclopedia, 6th ed.. . Retrieved July 26, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/polyurethanes

polyurethane

pol·y·u·re·thane / ˌpäliˈyoōrəˌ[unvoicedth]ān/ • n. a synthetic resin in which the polymer units are linked by urethane groups, used chiefly as constituents of paints, varnishes, adhesives, and foams. • v. [tr.] [usu. as adj.] (polyurethaned) coat or protect with paint or varnish of this kind.

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"polyurethane." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 26 Jul. 2017 <http://www.encyclopedia.com>.

"polyurethane." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (July 26, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/polyurethane-0

"polyurethane." The Oxford Pocket Dictionary of Current English. . Retrieved July 26, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/polyurethane-0

polyurethane

polyurethaneairplane, terreplein •sailplane, tailplane •mainplane •seaplane, ski-plane •chilblain •biplane, triplane •warplane • towplane • Tamerlane •monoplane • aeroplane • gyroplane •hydroplane • châtelaine • aquaplane •balletomane • Moulmein •Charlemagne • frangipane • propane •windowpane • counterpane •membrane • checkrein • lamebrain •migraine • ingrain • quatrain •grosgrain • wholegrain • scatterbrain •suzerain • birdbrain • sixain •elastane • Beltane • Aquitaine •octane •Fonteyn, montane •Holstein • Bloemfontein • butane •bloodstain • chevrotain •ethane, methane •polyurethane • Alfvén • paravane •weathervane • vervain • Gawain

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"polyurethane." Oxford Dictionary of Rhymes. . Encyclopedia.com. 26 Jul. 2017 <http://www.encyclopedia.com>.

"polyurethane." Oxford Dictionary of Rhymes. . Encyclopedia.com. (July 26, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/polyurethane

"polyurethane." Oxford Dictionary of Rhymes. . Retrieved July 26, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/polyurethane