- noun a tough flexible synthetic polymer, used in resins, varnish, glue, foams and fibres
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- noun a thermoplastic material with high strength, good chemical and abrasion resistance; used mainly for foamed reaction injection mouldings and for adhesives, such as for flush-bonded body glass.
- reaction product of an isocyanate with any of a wide variety of other compounds containing an active hydrogen group. Polyurethane is used to formulate tough, abrasion-resistant coatings, and is also used for foam insulation products.
- A thermoplastic or thermosetting synthetic polymer which is waterproof, impact resistant, durable, and hard yet flexible. It has many applications, including its use as an electrical and thermal insulator, and for impact protection for components and devices.